eric is giving a presentation about average rainfall in the united states and wants to create a graph that shows how yearly rainfall has changed over the past decade. what type of chart should he use?

Answers

Answer 1

To represent the yearly rainfall in a graph, eric should use the Bar Graph

which is commonly used worldwide

Bar Graph:

The graphic representation of data in the form of vertical or horizontal bars or rectangular strips having uniform width is called bar graphs.

A bar graph is used to give the comparison between two or more groups. It comprises of two or more parallel vertical (or horizontal) rectangles.

With bar graphs, we can compare data sets from different groups. The graph depicts groups on one axis and a discrete value on the other. The main purpose is to display the relationship between the two axes.

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Related Questions

HelppppppFunction f is a(n)functionThe graph is a reflection in thewith a verticaland atranslationunits:The domain of f isThe domain of the parent function is;The range of f isThe range of the parent function is

Answers

Answer:

In order of appearance of  boxes

quadraticx-axisstretch3 (units)upall real numbersall real numbersy ≤ 3y ≥ 0

Step-by-step explanation:

The given function f(x) = -2x² + 3 belongs to the quadratic family of equations. A quadratic equation has a degree of 2. The degree is the highest power of the x variable in the function f(x)

The parent f(x) = x²

Going step by step:

2x²  ==> graph x² is vertically stretched by 2. For any value of x in x², the new y value is twice that the old value. For example, in the original parent function x², for x = 2, y = 4. In the transformed function 2x², for x = 2, y = 2 x 4 = 8 so it has been stretched vertically. It becomes skinnier compared to the original

-2x²  => graph is reflected over the x-axis. It is the mirror image of the original graph when viewed from the x-axis perspective

-2x² + 3 ==> graph is shifted vertically up by  3 units

Domain is the set of all x-input values for which the function is defined. For both x² and -2x² + 3 there are no restrictions on the values of x. So the domain for both is the set of all real numbers usually indicated by
-∞ < x < ∞

The range is the set of all possible y values for a function y = f(x) for x values in domain.

The range of f(x) = x² is x≥ 0 since x² can never be negative

Range of -2x² + 3 is  x ≤ 3 : Range of -2x² is y ≤ 0 since y cannot be negative and therefore range of -2x² + 3 is y ≤ 3


College students are offered a 6% discount on a textbook that sells for
$32.50. If the sales tax is 6%, find the cost of the textbook including the sales
tax.

Answers

32.383 is  the cost of the textbook including the sales tax.

How does sales tax work?

Government-imposed consumption taxes on the purchase of goods and services are known as sales taxes. A typical sales tax is imposed at the moment of sale, paid for by the shop, and then given to the government.

The original price of the textbook = $32.50

Also, the discount percentage = 6%

Thus, the price of the textbook after discount = 32.50 - 6 % of 32.50

                                           = 32.50 - 6 * 3250/100

                                           = 32.50 - 1.95

                                            = 30.55

Now, the sales tax = 6 %

Hence, the cost of the textbook including sales tax

                                                                                = 30.55 + 6 % of 30.55

                                                                           = 30.55 + 6 * 30.55/100

                                                                        = 30.55 + 1.833

                                                                        = 32.383

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In how many ways can 3 students from a class of 23 be chosen for a field trip?aYour answer is:

Answers

SOLUTION:

This is a combination problem.

The number of ways 3 students from a class of 23 be chosen for a field trip is;

[tex]23C_3=\frac{23!}{(23-3)!3!}=1771\text{ }ways[/tex]

use properties of operations to write an equivalent expression. will sand image

Answers

Use properties of operations to write equivalent expressions

WRITING EQUIVALENT EXPRESSIONS USING PROPERTIES

Commutative Property of Addition :

When adding, changing the order of the numbers does not change the sum. ...

Commutative Property of Multiplication : ...

Associative Property of Addition : ...

Associative Property of Multiplication : ...

Distributive Property :

2.8 w + 5.6

= 2.8 ( w + 2 ) ----------- OPTION B

The points (-6, -10) and (23, 6) form a line segment.
Write down the midpoint of the line segment.

Answers

A line segment has the endpoints at (-6, -10) and (23, 6) then the midpoints of the line segment will be (17, -2).

What is meant by line segment?

An area or portion of a line with two endpoints is called a line segment. A line segment, in contrast to a line, has a known length. A line segment's length can be estimated by utilizing either metric measurements like millimeters or centimeters, or conventional measurements like feet or inches.

A line segment has the endpoints at (-6, -10) and (23, 6).

Mid point of the line segment is given by [tex]$\left(\frac{x_1+x_2}{2}\right),\left(\frac{y_1+y_2}{2}\right)$[/tex]

The midpoints of the line segment will be

=  [tex]$\frac{23+-6}{2}[/tex], [tex]$\frac{-10+6}{2}}[/tex]

= 17, -2

Therefore midpoints of the line segment will be (17, -2).

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Looking to receive assistance on the following problem, thank you!

Answers

Given:

[tex]\begin{gathered} v=3i-4j \\ u=-2i-7i \\ w=5j \end{gathered}[/tex]

So the value is:

(a)

[tex]\begin{gathered} u=-2i-7j \\ 2u=2(-2i-7j) \\ 2u=-4i-14j \end{gathered}[/tex][tex]\begin{gathered} 2u-v=-4i-14j-(3i-4j) \\ =-4i-14j-3i+4j \\ =-7i-10j \end{gathered}[/tex]

(b)

[tex]\begin{gathered} w=5j \\ 3w=3\times5j \\ 3w=15j \end{gathered}[/tex][tex]\begin{gathered} u=-2i-7i \\ 4u=4(-2i-7j) \\ 4u=-8i-28j \end{gathered}[/tex][tex]\begin{gathered} 3w+4u=15j+(-8i-28j) \\ =15j-8i-28j \\ =-8i-13j \end{gathered}[/tex]

(c)

The dot product of v and u.

[tex]\begin{gathered} v=3i-4j \\ u=-2i-7i \end{gathered}[/tex]

dot product is:

[tex]\begin{gathered} vu=(3i-4j)\cdot(-2i-7j) \\ =-6(i\cdot i)-21(i\cdot j)+8(j\cdot i)+28(j\cdot j) \end{gathered}[/tex]

The doat product (i.i = 1) and ( j.j=1) and ( i.j=0) and ( j.i = 0)

[tex]\begin{gathered} =-6(1)-21(0)+8(0)+28(1) \\ =-6+28 \\ =22 \end{gathered}[/tex]

Stephanie dilated the rectangle below and dimensions of the image were 24 ft by 6ft. What was the scale of the factor used?

Answers

In order to determne the scale factor, calculate the quotient in between the lengths of the sides of the rectangles, as follow:

32 ft/24 ft = 4/3

8 ft/ 6 ft = 4/3

Hence, the scale factor is 4/3

Determine the missing coordinates in the ordered pair (-1,?) so that it will satisfy the given equation

Answers

we have the equation

2x-3y=4

Remember that

if the ordered pair is a solution of the given equation, then the ordered pair must satisfy the given equation

we have the ordered pair (-1,a)

substitute the given coordinates in the equation

2(-1)-3(a)=4

-2-3a=4

solve for a

3a=-2-4

3a=-6

a=-2

therefore

the missing coordinate is -2

IF G and R denote the grade and the radian measure of an angle, then prove that G/200 = R/pie

Answers

Solution:

Given;

IF G and R denote the grade and the radian measure of an angle, i.e.

Where

[tex][/tex]

The resale value V, in thousands of dollars, of a boat is a function of the number of years since the start of 2011, and the formula isV = 10.5 - 1.1t.(a) Calculate V(3).________thousand dollarsExplain in practical terms what your answer means.This means that the resale value of the boat will be______thousand dollars at the start of the year_______(b) In what year will the resale value be 6.1 thousand dollars?______(c) Solve for t in the formula above to obtain a formula expressing t as a function of V. t=______(d) In what year will the resale value be 2.8 thousand dollars?_______

Answers

Answer

a) V (3) = 7.2 thousand dollars.

In practical terms, the resale value of the boat will be 7.2 thousand dollars at the start of the year 2014.

b) t = 4years.

The resale value will be 6.1 thousand dollars in the year 2015.

c) t = 9.545 - 0.909V

d) t = 7 years.

7 years after the start of 2011 = 2018.

Explanation

We are given that the resale value (V), in thousands of dollar, of a boat is given as

V = 10.5 - 1.1t

where t = number of years since the start of 2011.

a) We are told to calculate V(3).

V = 10.5 - 1.1t

t = 3

V = 10.5 - 1.1 (3)

V = 10.5 - 3.3

V = 7.2 thousand dollars.

In practical terms, the resale value of the boat will be 7.2 thousand dollars at the start of the year 2014.

b) In what year will the resale value be 6.1 thousand dollars.

V = 10.5 - 1.1t

what is t when V = 6.1

6.1 = 10.5 - 1.1t

1.1t = 10.5 - 6.1

1.1t = 4.4

Divide both sides by 1.1

(1.1t/1.1) = (4.4/1.1)

t = 4 years.

4 years afther the start of 2011 = 2015.

c) We are asked to solve for t and obtain a formula expressing t as a function of V.

V = 10.5 - 1.1t

1.1t = 10.5 - V

Divide through by 1.1

[tex]\begin{gathered} \frac{1.1t}{1.1}=\frac{10.5}{1.1}-\frac{V}{1.1} \\ t=9.545-\frac{V}{1.1} \\ t=9.545-0.909V \end{gathered}[/tex]

t, expressed in terms of V, is t = 9.545 - 0.909V

d) We are now asked to calculate in what year will the resale value be 2.8 thousand dollars.

t = 9.545 - 0.909V

t = 9.545 - 0.909 (2.8)

t = 9.545 - 2.545

t = 7 years.

7 years after the start of 2011 = 2018.

Hope this Helps!!!

I need help with this problem.

Answers

Using tangent function:

[tex]\begin{gathered} \tan (\theta)=\frac{opposite}{adjacent} \\ \tan (T)=\frac{16}{32}=\frac{1}{2}=0.5 \end{gathered}[/tex]

1 Ms. Signer has to buy pencils for her class. She goes to CVS and buys 15 pencils for $2.50. How much did she spend per pencil?*

Answers

She bought pencils for her class. She bought 25 pencils for $2.50 . The amount for each pencil can be computed below

[tex]\begin{gathered} 25\text{ pencils = \$2.50} \\ 1\text{ pencil = ?} \\ \text{cross multiply} \\ \cos t\text{ of each pencil=}\frac{2.50}{25} \\ \text{ cost of each pencil = \$}0.1 \end{gathered}[/tex]

A radio tower is located 250 feet from a building. From a window in the building, a person determines that the angle of elevation to the top of the tower is 31∘ and that the angle of depression to the bottom of the tower is 29∘

How tall is the tower? ____________ feet.

Answers

Given a radio tower of 250 feet and angles of 31 and 29 degrees, the height of the tower is given as 308.58 ft

What is angle of depression?

This is the term that is used to refer to the angle that lies between the horizontal line and the object that would be observed from the horizontal line.

In the question we have the following data

b = 250 feet

angles = 31 degrees, 29 degrees

for the top α = 31 degrees, β = 59

For the bottom α = 29 degrees, β = 61 degrees

We have the formula as

a /sin α = b / sin β = c

tan ∅ = opp / adj

for ΔOCA

h1 = 250 x tan 39 degrees

= 250 x 0.8098

= 202.45

h2 = OCB

= 250 x tan 23

= 250 x 0.4245

= 106.125

The height h = h1 + h2

= 202.45 + 106.125

= 308.58

The height of the tower is 308.58 ft

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Use the table to find the slope of the line.Round your answer out to two decimal places

Answers

Given:

The points are (8, -3) and (-5, 1).

To find the slope of the line:

The slope formula is,

[tex]\begin{gathered} m=\frac{y_2-y_1}{x_2-x_1} \\ =\frac{1-(-3)}{-5-8} \\ =\frac{1+3}{-13} \\ =-\frac{4}{13} \\ =-0.30769 \\ \approx-0.31 \end{gathered}[/tex]

Hence, the slope of the line is -0.31 (rounded to the nearest two decimal places).

Hi, I’m really confused with this question and I’m not sure how to solve it!

Answers

SOLUTION

The figure below would help in answering the question

Let's get the slopes of the line for company G and company H

Slope m is given as

[tex]m=\frac{rise}{run}[/tex]

For company G, we have slope as

[tex]m=\frac{5}{1}=5[/tex]

For Company H, we have

[tex]m=\frac{4}{1}=4[/tex]

From the graph

Cab fare for 1 mile with company G is $7

Cab fare for 10 miles with company H is?

To get this we need to get the equation of the line H

From

[tex]\begin{gathered} y=mx+b \\ where\text{ m is slope and b is the y-intercept, we have } \\ y=4x+2 \end{gathered}[/tex]

Now substituting x for 10 in the equation, we have

[tex]\begin{gathered} y=4x+2 \\ y=4(10)+2 \\ y=40+2 \\ y=42 \end{gathered}[/tex]

Hence the cab fare for 10 miles with Company H is $42

The rate charge per mile by Company G is the slope we got as 5.

Hence the answer is $5 per mile

The rate charge per mile by Company H is the slope we got as 4.

Hence the answer is $4 per mile

Lisa played 42 of thepossible 60 minutes of asoccer game. Whatpercent did she notplay?

Answers

Lisa played 42 minutes of a 60 minutes match. This means that she didn't play 18 minutes of the game; to find what percent this represents we can use the rule of three:

[tex]\begin{gathered} 60\rightarrow100 \\ 18\rightarrow x \end{gathered}[/tex]

Then:

[tex]\begin{gathered} x=\frac{18\cdot100}{60} \\ =30 \end{gathered}[/tex]

Therefore, Lisa didn't play 30% of the game.

11) What is the area of the composite figure? *7 points6 ftT T2 ft5 ft3ft220O 212223

Answers

Answer: 22

Step-by-step explanation:

The table shows the cost for a clothing store to buy jeans and khakis. The total cost for Saturday's shipment, $1,800, is represented by the equation 15x + 20y = 1,800. Use the x- and y-intercepts to graph the equation. Then interpret the x- and y-intercepts.

Answers

These are the answers

Riley read 1 book in 2 months. If she reads at a constant rate, how many books did she read in one month? Give your answer as a whole number or a FRACTION in simplest form.On the double number line below, fill in the given values, then use multiplication or division to find the missing value.

Answers

To find out the unit rate

Divide the total books by the total months

so

1/2=0.5 books per month

the answer is 0.5 books per month

In the double number line

we have

books 0 0.5 1

months 0 1 2


Solve the inequality and write the solution using:
the inequality

Answers

X < 16 is the answer lleelien

A number multiplied by 2/5 is 3/20, Find the number

Answers

Answer:

3/8

Explanation:

Let the number be x.

A number multiplied by 2/5 = (2/5)x

Therefore:

[tex]\frac{2}{5}x=\frac{3}{20}[/tex]

To solve for x, first, we cross-multiply.

[tex]\begin{gathered} 2x\times20=3\times5 \\ 40x=15 \end{gathered}[/tex]

Next, we divide both sides of the equation by 40.

[tex]\begin{gathered} \frac{40x}{40}=\frac{15}{40} \\ x=\frac{3}{8} \end{gathered}[/tex]

The number is 3/8.

Given a regular octagon and a regular nonagon, which one has the greater interior angle?(Type your answer as the name of the polygon)

Answers

Answer:

Nonagon

Explanation:

Each of the interior angles of a polygon is calculated using the formula:

[tex]\frac{180^0\mleft(n-2\mright)}{n}[/tex]

An Octagon has 8 sides, therefore:

[tex]\begin{gathered} Each\; \text{Interior Angle=}\frac{180^0(8-2)}{\square} \\ =\frac{180\times6}{8} \\ =\frac{1080^0}{8} \\ =135^0 \end{gathered}[/tex]

A Nonagon has 9 sides, therefore:

[tex]\begin{gathered} Each\; I\text{nterior Angle=}\frac{180^0(9-2)}{9} \\ =\frac{180\times7}{9} \\ =\frac{1260^0}{9} \\ =140^0 \end{gathered}[/tex]

Therefore, the nonagon has a greater interior angle.

Use the graph of the function y= f(x) below to answer the questions

Answers

a)

We need to find the value of f(-3), that means we need to find the value of the y-coordinate when the x-coordinate is -3

As we can see in the graph

f(-3)=-5

Therefore f(-3) is negative

The answer for this part is NO

b)

if f(x)=0, that means that we are looking for the x-intercepts

x=-2

x=1

x=4

The answer is -2,1,4

c)

We need to know for what values of x f(x)<0

In this case in interval notation

[tex]\lbrack-3,2)\cup(1,4)[/tex]

What’s the correct Answer answer asap for brainlist please

Answers

Answer:

A. accuracy

Step-by-step explanation:

precise means to be accurate

What is the value of x in the proportion2 1/4 = 1 1/2_________x = 3 3/5A. 2 2/5B. 5 2/5C. 8 1/10D. 12 3/20

Answers

First, we transform the mixed fractions

[tex]\begin{gathered} 2\frac{1}{4}=2+\frac{1}{4}=\frac{8}{4}+\frac{1}{4}=\frac{9}{4} \\ 1\frac{1}{2}=1+\frac{1}{2}=\frac{2}{2}+\frac{1}{2}=\frac{3}{2} \\ 3\frac{3}{5}=3+\frac{3}{5}=\frac{15}{5}+\frac{3}{5}=\frac{18}{5} \end{gathered}[/tex]

Then, we use cross multiplication

[tex]\begin{gathered} \frac{\frac{9}{4}}{x}=\frac{9}{4}\times\frac{1}{x}=\frac{9}{4x} \\ \frac{\frac{5}{2}}{\frac{18}{5}}=\frac{3}{2}\times\frac{5}{18}=\frac{15}{36} \end{gathered}[/tex]

so, we have

[tex]\frac{9}{4x}=\frac{15}{36}[/tex]

Finally, we solve for x, we multiply x on both sides

[tex]\begin{gathered} \frac{9}{4x}x=\frac{15}{36}x \\ \frac{15}{36}x=\frac{9}{4} \\ x=\frac{\frac{9}{4}}{\frac{15}{36}} \\ x=\frac{9}{4}\times\frac{36}{15} \\ x=\frac{9\times9\times4}{15\times4} \\ x=\frac{81}{15} \\ x=\frac{27}{5} \end{gathered}[/tex]

Since 27/5 = 5+2/5.Then,

[tex]x=5\frac{2}{5}[/tex]

Then the answer is the second one.

find the area of the composite figures by either adding and subtracting regions

Answers

Explanation:

This figure is a rectangle and a quarter of a circle. We can find their areas and add them to find the total area of the figure.

The area of the rectangle is:

[tex]A_{\text{rectangle}}=17cm\times10\operatorname{cm}=170\operatorname{cm}^2[/tex]

The area of a circle is:

[tex]A_{\text{circle}}=\pi\cdot r^2[/tex]

Where r is the radius of the circle. In this case we have a quarter of a circle, so its area is a quarter of the area of the circle:

[tex]A_{1/4\text{circle}}=\frac{A_{\text{circle}}}{4}=\frac{\pi\cdot r^2}{4}[/tex]

The radius of this circle is 8cm:

[tex]A_{1/4\text{circle}}=\frac{\pi\cdot8^2}{4}=\frac{\pi\cdot64}{4}=\pi\cdot16\approx50.27\operatorname{cm}^2[/tex]

The total area of the figure is:

[tex]A_{\text{figure}}=A_{\text{rectangle}}+A_{1/4\text{circle}}=170\operatorname{cm}+50.27\operatorname{cm}=220.27\operatorname{cm}^2[/tex]

Answer:

The area is 220.27 cm²

you can make pancakes with just bananas and eggs : serves 4 people with 6 eggs 2 bananas. how many eggs and bananas do u need to serve 6 people?

Answers

Given:

To prepare a pancake that serves 4 people, we need 6 eggs and 2 bananas.

Required:

The number of eggs and bananas that serves 6 people

By comparison,

If we need 6 eggs to prepare a pancake that serves 4 people, the number of people that 1 egg would serve is:

[tex]\begin{gathered} k\text{ = }\frac{4\text{ people}}{6\text{ eggs}} \\ =\text{ }\frac{2}{3}\text{ people/ egg} \end{gathered}[/tex]

Similarly, If we need 2 bananas to prepare a pancake that serves 4 people, the number of people that 1 banana would serve is:

[tex]\begin{gathered} k_2\text{ = }\frac{4\text{ people}}{2\text{ bananas}} \\ =\text{ 2 people/banana} \end{gathered}[/tex]

The number of eggs that serves 6 people:

[tex]\begin{gathered} =\text{ 6 people }\times\frac{3}{2}\text{ egg/people} \\ =\text{ 9 eggs} \end{gathered}[/tex]

The number of bananas that serves 6 people:

[tex]\begin{gathered} =\text{ 6 people }\times\text{ }\frac{1}{2}\text{ banana/ people} \\ =\text{ 3 bananas} \end{gathered}[/tex]

Answer:

9 eggs are needed

3 bananas are needed

(If there is more than one answer, use the "or" button.)Round your answer(s) to the nearest hundredth.A ball is thrown from a height of 141 feet with an initial downward velocity of 21 ft/s. The ball's height h (in feet) after t seconds is given by the following.h = 141 - 21t - 16t ^ 2How long after the ball is thrown does it hit the ground?

Answers

Solution:

Given:

[tex]h=141-21t-16t^2[/tex]

To get the time the ball hit the ground, it hits the ground when the height is zero.

Hence,

[tex]\begin{gathered} At\text{ h = 0;} \\ h=141-21t-16t^2 \\ 0=141-21t-16t^2 \\ 141-21t-16t^2=0 \\ 16t^2+21t-141=0 \end{gathered}[/tex]

To solve for t, we use the quadratic formula.

[tex]\begin{gathered} x=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a} \\ \text{where;} \\ a=16,b=21,c=-141 \\ t=\frac{-21\pm\sqrt[]{21^2-(4\times16\times-141)}}{2\times16} \\ t=\frac{-21\pm\sqrt[]{441+9024}}{32} \\ t=\frac{-21\pm\sqrt[]{9465}}{32} \\ t=\frac{-21\pm97.288}{32} \\ t_1=\frac{-21+97.288}{32}=\frac{76.288}{32}=2.384\approx2.38 \\ t_2=\frac{-21-97.288}{32}=\frac{-118.288}{32}=-3.6965\approx-3.70 \end{gathered}[/tex]

Since time can't be a negative value, we pick the positive value of t.

Therefore, to the nearest hundredth, it takes 2.38 seconds for the ball to hit the ground.

I’m not firmiliar with the sun or difference of cubes (HW assignment)

Answers

Given:

[tex]125r^3-216[/tex]

Find-: Factor using the formula of the sum or difference of cube.

Sol:

Factoring sum and differences of cubs is:

[tex]\begin{gathered} x^3-y^3=(x-y)(x^2+y^2+xy) \\ \\ x^3+y^3=(x+y)(x^2+y^2-xy) \end{gathered}[/tex]

Apply for the given information.

[tex]\begin{gathered} =125r^3-216 \\ \\ =(5r)^3-(6)^3 \end{gathered}[/tex][tex]\begin{gathered} x^3-y^3=(x-y)(x^2+y^2+xy) \\ \\ (5r)^3-(6)^3=(5r-6)((5r)^2+(6)^2+(5r)(6)) \\ \\ =(5r-6)(25r^2+36+30r) \end{gathered}[/tex]

Find the equation of the linear function represented by the table below in slope-intercept form. Answer: y=

Answers

Answer:

y = 2x + 6

Explanation:

The slope-intercept form of a linear equation can be found as:

[tex]y=m(x-x_1)+y_1[/tex]

Where m is the slope and it is calculated as:

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

And (x1, y1) and (x2, y2) are values from the table. So, we can replace (x1, y1) by (0,6) and (x2, y2) by (1, 8):

Then, the slope is:

[tex]m=\frac{8-6}{1-0}=\frac{2}{1}=2[/tex]

Therefore, the equation of the line is:

[tex]\begin{gathered} y=2(x-0)+6 \\ y=2x+6 \end{gathered}[/tex]

So, the answer is y = 2x + 6

Other Questions
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