find the Total surface area of given figure)
nuem
1
20cm 24cm 14cm
Answer:
where is the figure? to calculate the surface area
a) Find the slope, x-intercept, y-intercept of the line (L):
3x+4y-6= 0 and draw its graphs.
b) Find the equation of a line perpendicular to the line (L) in part (a) and
passing through the point (1, -2).
Answer: 2, 1.5 , -0.75
(b) [tex]4x-3y-10=0[/tex]
Step-by-step explanation:
Given
line is [tex]3x+4y-6=0[/tex]
Converting it into intercept form
[tex]\Rightarrow 3x+4y=6\\\\\Rightarrow \dfrac{3x}{6}+\dfrac{4y}{6}=\dfrac{6}{6}\\\\\Rightarrow \dfrac{x}{2}+\dfrac{y}{1.5}=1[/tex]
So, the x-intercept is [tex]2[/tex] and y-intercept is [tex]1.5[/tex]
The slope is given by
[tex]-\dfrac{\frac{1}{2}}{\frac{1}{1.5}}=-0.75[/tex]
(b) the line perpendicular to the above line and passing through [tex](1,-2)[/tex]
The slope of the required line
[tex]m=-\dfrac{1}{-0.75}\\\\m=\dfrac{4}{3}[/tex]
Equation of the line is given by
[tex]\Rightarrow \dfrac{y-(-2)}{x-1}=\dfrac{4}{3}\\\\\Rightarrow 3y+6=4x-4\\\Rightarrow 4x-3y-10=0[/tex]

A science teacher is preparing test tubes for an experiment.
She places 0.69 g of baking soda into each test tube. What is
the greatest number of test tubes the teacher can prepare for
the experiment if she has 41.4 g of baking soda
Answer: 60 test tubes
Step-by-step explanation: 41.4/60 = 0.69
A baby's weight rose from 19 1/2 pounds to 19 7/8pounds. What was the change in the baby's weight in pounds?
Answer:
it rose three eighths of a pound
Rachel cut a whole banana into 6 pieces and then ate all the pieces. She put a point on a number line to show how much she ate.
0
Which fraction is equal to the point shown on the number line?
Please help me with this math problem. There is a photo attached. Thanks so much :)
Answer:
each tangent is 20.785 ft long
Step-by-step explanation:
since the tangent forms a right angle with the radius, and a line from P to O bisects the 60° angle:
tan 30° = 12/x
0.5774 = 12/x
0.5774x = 12
x = 20.785 ft
what is x • x³
[tex]x \times x ^{3} [/tex]
Answer:
x^4
Step-by-step explanation:
any variable when multiplied by the same variable will result in the exponent to increase.
Please help anybody no links or else I report
Due in one min
0.7 = 7/10 = 14/20
The missing numbers are 10 and 14
Answer: 7/10 14/20
Step-by-step explanation: Convert to a mixed number by placing the numbers to the right of the decimal over
10. Reduce the fraction
Solve the following system of linear equations by using the Elimination Method:
21 - 3y=3
3+y=10
a) What number would you multiply the bottom equation by in order to eliminate the y's?
b) Do the multiplication...what is the new bottom equation?
x +
y =
C) Now add the top equation to your new equation and solve for x. What do you get?
x =
Answer: look i learned a lesson to never cheat and dont do the same mistake you too plz here is a thing that can help you answer your question
Step-by-step explanation:
here is the the link that can help you do the questions
am not the link people
https://teachers.henrico.k12.va.us/math/HCPSAlgebra1/Documents/9-4/SolveSysByElimMult.ppt
What is the answer hurry please
36k = -9
Answer:
k=-0.25
Step-by-step explanation:
What is the algebraic expression for
5 less the product of 10 and c
Answer:
10c - 5
Step-by-step explanation:
" the product" tells you you're multiplying 10 and c, and "5 less" means subtracting 5 from the other part of the expression.
. (0.5 point) We simulate the operations of a call center that opens from 8am to 6pm for 20 days. The daily average call waiting times are reported below for these 20 simulated days: 24.16 20.17 14.60 19.79 20.02 14.60 21.84 21.45 16.23 19.60 17.64 16.53 17.93 22.81 18.05 16.36 15.16 19.24 18.84 20.77 Due to a budget cut, the call center has now to downsize and the simulation model is used to predict the effect. We again simulate the call center for 20 days and now the daily average call waiting times are: 19.81 18.39 24.34 22.63 20.20 23.35 16.21 21.73 17.18 18.98 19.35 18.41 20.57 13.00 17.25 21.32 23.29 22.09 12.88 19.27 Compute a 95% t-confidence interval to decide if the change in the call waiting time is statistically significant.
Answer:
The 95% t-confidence interval for the difference in mean is approximately (-2.61, 1.16), therefore, there is not enough statistical evidence to show that there is a change in waiting time, therefore;
The change in the call waiting time is not statistically significant
Step-by-step explanation:
The given call waiting times are;
24.16, 20.17, 14.60, 19.79, 20.02, 14.60, 21.84, 21.45, 16.23, 19.60, 17.64, 16.53, 17.93, 22.81, 18.05, 16.36, 15.16, 19.24, 18.84, 20.77
19.81, 18.39, 24.34, 22.63, 20.20, 23.35, 16.21, 21.73, 17.18, 18.98, 19.35, 18.41, 20.57, 13.00, 17.25, 21.32, 23.29, 22.09, 12.88, 19.27
From the data we have;
The mean waiting time before the downsize, [tex]\overline x_1[/tex] = 18.7895
The mean waiting time before the downsize, s₁ = 2.705152
The sample size for the before the downsize, n₁ = 20
The mean waiting time after the downsize, [tex]\overline x_2[/tex] = 19.5125
The mean waiting time after the downsize, s₂ = 3.155945
The sample size for the after the downsize, n₂ = 20
The degrees of freedom, df = n₁ + n₂ - 2 = 20 + 20 - 2 = 38
df = 38
At 95% significance level, using a graphing calculator, we have; [tex]t_{\alpha /2}[/tex] = ±2.026192
The t-confidence interval is given as follows;
[tex]\left (\bar{x}_{1}- \bar{x}_{2} \right )\pm t_{\alpha /2}\sqrt{\dfrac{s_{1}^{2}}{n_{1}}+\dfrac{s_{2}^{2}}{n_{2}}}[/tex]
Therefore;
[tex]\left (18.7895- 19.5152 \right )\pm 2.026192 \times \sqrt{\dfrac{2.705152^{2}}{20}+\dfrac{3.155945^2}{20}}[/tex]
(18.7895 - 19.5125) - 2.026192*(2.705152²/20 + 3.155945²/20)^(0.5)
The 95% CI = -2.6063 < μ₂ - μ₁ < 1.16025996668
By approximation, we have;
The 95% CI = -2.61 < μ₂ - μ₁ < 1.16
Given that the 95% confidence interval ranges from a positive to a negative value, we are 95% sure that the confidence interval includes '0', therefore, there is sufficient evidence that there is no difference between the two means, and the change in call waiting time is not statistically significant.
please please i neeed help
Answer:
i have made it in above picture
hope it helps
The selling price of 3 cucumbers is $2.00
complete the table to show the relationship between the number of cucumbers and the selling price, Inter a number in each box
Number of Cucumbers
Selling Price
$2.00
$6.00
12
PLEASE HELP FAST ILL GIVE POINTS AND BRAINIEST
Answer:
The first blank is 9 for 9 cucumbers
The second blank is 8 dollars
Step-by-step explanation:
We can use ratios to solve
3 cucumbers x cucumbers
--------------------- = ----------------------
2 dollars 6 dollars
Using cross products
3*6 = 2x
18 = 2x
Divide by 2
18/2 = 2x/2
9 =x
We need 9 cucumbers
For the third row
3 cucumbers 12 cucumbers
--------------------- = ----------------------
2 dollars y dollars
Using cross products
3*y = 2*12
3y = 24
Divide by 3
3y/3 = 24/3
y = 8
We need 8 dollars
Mis abuelos ______ profesores de matemáticas. *
son
están
Yo _____ enfermo hoy. *
soy
estoy
Tú ______ en la clase de historia. *
eres
estás
Tomás ______ de Argentina. *
es
está
Ustedes ________ argentinos también. *
son
están
Nosotros ________ muy cansadas. *
somos
estamos
Los libros ________ muy interesantes. *
son
están
Los libros _______ en la biblioteca. *
son
están
Answer: son, estoy, estas, es, son, estamos, son, estan
Step-by-step explanation:
If it is talking about someone else then try to use, son. Like the first one. For words for yo use words like estoy. I don´t really know how to explain them but they make sense.
are 30/80 and 24/64 proportional
Answer:
Yes, they are proportional
Step-by-step explanation:
First, simplify each fraction
30/80 can be simplified by dividing each number by 10
30/80
= 3/8
24/64 can be simplified by dividing each number by 8
24/64
= 3/8
So, each fraction will simplify to 3/8, meaning that they are proportional.
Please help h get brainleist and points
In order:
72 x 8 = 576
47 x 7 = 329
(7 x 3) x 7
21 x 7 = 147
Help me guyssssss skeks
Answer:
19
Step-by-step explanation:
|-8 -11|=19
Answer:
3
Step-by-step explanation:
when you have 2 negitives it makes a positive which cancelles it out and it equals 3
please help and explain how you got the answer:)
using cos to get x
cos -1 of 13/20
= 49.45
then y = 40.54° using sin y= opp /hyp =13\15
then the sin-1 of 13/20 =40.54 •
Adam and Jennifer each improved their yards by planting rose bushes and shrubs. They bought
their supplies from the same store. Adam spent $128 on 8 rose bushes and 8 shrubs. Jennifer
spent $181 on 11 rose bushes and 12 shrubs. What is the cost of one rose bush and the cost of
one shrub?
Answer:
I don't know
Step-by-step explanation:
Dapat kasi mag-aaral ka mabuti para ikaw ay magiging matalino
Answer:The Cost of one rose bush is $11 and the cost of one shrub is $5
Step-by-step explanation: Well it took me 40 mins to get the answer and yes i know it shouldn't take that long but for a freshmanbut wow that was hard , well 11 x 8 = 88 and 5 x 8 = 40 add that up 128 and for the 2nd question 11x 11= 121 then 5x 12= 60 and when you add it up you got 181 so what would the main numbers be that you used for both problems? it would be 11 for one rose and 5 for one shrubs. thanks for wasting my time on a hard question that took me 40 mins to answer
(2x-1)(x+4) expand and simplify
Answer:
2x²+7x-4
Step-by-step explanation:
2x²+8x-x-4
2x²+7x-4
Answer:
2x² + 7x - 4
Step-by-step explanation:
(2x + 1)(x + 4)
Each term in the second factor is multiplied by each term in the first factor, that is
2x(x + 4) - 1 (x + 4) ← distribute parenthesis
2x² + 8x - x - 4 ← collect like terms
= 2x² + 7x - 4
If you deposit $300 in an account with a 6% interest rate, how much will be in your account after 1 year? If you leave this money in the account, how much will be in your account after 2 years?
Answer:
I only know the first question, If you leave that money for 1 year it would equal $480 basically, $300 x 1.6 = $480.
Step-by-step explanation:
The required amount in your account after 2 years will be $337.08.
What is compound interest?Compound interest is the interest on deposits computed on both the initial principal and the interest earned over time.
Here,
If you deposit $300 in an account with a 6% interest rate, the amount in your account after 1 year can be calculated as follows:
Find the interest earned after one year:
Interest earned = (6/100) x 300 = $18
Add the interest earned to the original amount:
Total amount after 1 year = $300 + $18 = $318
Therefore, the amount in your account after 1 year will be $318.
If you leave this money in the account for another year, the amount in your account after 2 years can be calculated as follows:
Find the interest earned after two years:
Interest earned in year 1 = $18
Interest earned in year 2 = (6/100) x $318 = $19.08
Add the interest earned to the original amount and the interest earned in year 1:
Total amount after 2 years = $300 + $18 + $19.08 = $337.08
Therefore, the amount in your account after 2 years will be $337.08.
Learn more about compound interest here: https://brainly.com/question/14295570
#SPJ7
Determine if the sequence below is arithmetic or geometric and determine the common difference / ratio in simplest form. 3, 5,7
Answer:
3, 12, 48 ... =
3(4)^0, 3(4)^1, 3(4)^2 ... =
3(1), 3(4), 3(16) ....
3, 12, 48 ...
it's geometric with common ratio of 4. each term is 4 times the prior termStep-by-step explanation:
1
When rolling two number cubes, what is the probability of rolling at least one 6?
А
12
36
С
6
36
B
11
36
D
1
36
Answer:
The answer is D.
Hi, can someone help me with this question?
Answer:
Soln
At first find the total area of figure then decrease the area with shaded region.
You can get answers.
Miss Lin bought 40 raisin, butter and curry buns for a class party. The ratio
of the number of raisin buns to the number of butter buns to the number of
curry buns was 7:5:8. Find the number of curry buns Miss Lin bought.
Answer:
Number of curry buns is 16.
Step-by-step explanation:
Total number of buns =40.
Ratio of number of raisin buns to the number of butter buns to the number of curry buns = 7:5:8
Let number of raisin buns = 7X.
Let number of butter buns =5X.
Let number of curry buns = 8X.
Therefore,
7X+5X+8X = 40
20X = 40
X= (40/20) = 2.
Therefore number of curry buns =8X = 8×2 =16.
A manufacturer that specializes in hamburgers made 200 hamburger patties. The manufacturer claims that the weights of these patties are approximately normally distributed with a mean of 8 ounces and a standard deviation of 0.54 ounces. You go to a store and buy 5 randomly selected hamburgers and find that the mean weight of your 5 hamburgers is only 7.6 ounces.
Answer:
The answer is "Parameter: 8 ounces and Statistics: 7.6 ounces"
Step-by-step
Amount of restaurant hamburger packers = 200
Mean weight of its patties = 8 ounces
Specification Patty Deviation=0.54 ounces
Those who went to the supermarket and bought five hamburgers picked randomly.
The important weight of hamburgers = 7.6 ounces
For this case, we need to classify the sample population and test statistics.
The group comprises all elements that may probably be predefined, while a small number of findings from this wider group are taken from either the sample. The restaurants achieved a list of 200 hamburgers. Consequently, the population is made up of 200 patties. From 200 hamburgers accessible, I visit the shop or pick 5 hamburgers. So, five hamburgers arbitrarily selected are samples.
parameters:
The parameter is known for just about any value or metric representing or reflecting the entire nation. They know from the information that the average weight of 200 burger patties is eight pounds. Because as mean(center) of a whole population is 8 ounces, this is a parameter.
Statistics:
The statistic is any quality or measure defining or representing its specimen. We purchased 5 randomly selected hamburgers, which meant 7.6 ounces for mean weight. 7.6 is a statistic, thus.
help please , i need it asap . thank you
Answer:
hi
Step-by-step explanation:
i think QR=24
QT=12
ST=37
hope it helps
The volume of a cylinder is 1761 square
centimeters and the height is 11
centimeters. Find the radius.
Answer:
7.14cm
Step-by-step explanation:
What is 28% of 250 Takis?
Answer:
28% of 250 is 70
Step-by-step explanation:
If you turn 28% into a decimal it will turn into 0.28 so then multiply that by 250 and you'll get 70
The answer is 70.......