Nov 28,Quadrilateral ABCD is dilated by a scale factor of to form quadrilateral A'B'C'D'.What is the measure of side DA?Dal1515301B2162А

In 2000 there were 419 million people 65 or older

In 2017 there were 656 million people 65 or older

a)

To calculate the absolute change in the number of people 65 and older you have to subtract the initial number (on year 2000) from the final number (in year 2017)

The absolute change is 240millions

b)

The relative change is the percentage of change. To calculate it you have to calculate the difference between the final number and the initial number, divide the result by the initial number and multiply it by 100

The relative change is 57.30%

A circle has 360°

since the diameter cuts in half the circle

The measure of the arc of half the circle (semicircle) measure arcAB is

AB=180°

Then correct answer is

option a

Randy and Wade started riding a bike at noon. Noon is 12 pm. Both of them are heading towards each other and 60km.

let

speed of wade = x

speed of Randy = 4 + x

They met each other at 1:30 pm. 12 pm to 1:30 pm is 1 hour 30 minutes(1.5 hours). Both of them will cover a total distance of 60km.

Therefore,

speed of wade = 18km/hr

speed of Randy = 4 + 18 = 22km/hr

STEP 1:

We write out the formulas and the necessary values

STEP 2

We substitute the values into the formula

Since we have the value for selling each shirt, the earnings that came from the hats sold and the total earnings we can complete equation using a linear equation in which the cost of each shirt will represent the slope and the y-intercept will be the earnings that came from the hats, like this:

then clear the equation for x in order to find how many shirts were sold

1) 3/4 = v/14

v = (3 x 14) / 4

v = 42/4

v = 10.5

2) 5/n = 16/32

5(32) = n(16)

n = 5(32) / 16

n = 160/16

n = 10

The basic form of the equation is;

4p (x- h)= (y - k)²

where (h, k) is the vertex and p is the distance from the vertex to either of its directrix or the focus

But, focus is = (1, -4) adn directrix = 2

So, the perpendicular point is :

(1.5 , -4)

p = -0.5

Putting all the values into the formula

4p (x- h)= (y - k)²

4(-0.5)(x - 1.5) = (y - (-4)²

simplify

-2(x - 1.5) = (y + 4)²

-2(x - 1.5) = y² + 8y + 16

Divide through the equation by -2

x - 1.5 = (-1/2) y² - 4y - 8

Add 1.5 to both-side of the equation

Step 1:

Write the two systems of equations

y = 3x = 2

3x = y - 3

Step 2:

Substitute y from the first equation into the second equation

Final answer

NO SOLUTION

The formula to calculate compound interest is given to be:

where:

The following parameters are given in the question:

We can substitute these values into the formula to calculate the final amount as follows:

Solving, we get:

The amount after 17 years is $154,577.64

As given by the question

There are given that the measuring circle.

Now,

From the given circle, the length of the MN is 28 units, because the half of the length of the MN is 14. So just multiply by 2 into half of the given value.

Hence, the length of MN is 28 units.

Now,

For the measure of MN:

The measurement of the angle MN is 74 degrees.

Hence, a measure of arc MN is 74 degrees. and the length of segment MN is 28 units.

The values of the composition of the functions are:

(f o g)(x) = -x³ - x + 1

(g o f)(x) = -x³ - x - 1

To find the value of the composition of a given function, the inner function is first evaluated, then the output of the inner function is then replaced into the outer function and simplified.

Given the functions:

(f o g)(x) = f(g(x))

Substitute -x for x into the function f(x) = x³ + x + 1:

f(g(x) = (-x)³ + (-x) + 1

f(g(x) = -x³ - x + 1

(g o f)(x) = g(f(x))

Substitute x³ + x + 1 for x into the function g(x) = -x:

g(f(x)) = -(x³ + x + 1)

g(f(x)) = -x³ - x - 1

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To find the value of x, use the vertical angle theorem.

Vertical angles are congruent.

Thus we have:

6x - 10 = 5x + 1

Solve for x.

6x - 10 = 5x + 1

Add 10 to both sides:

6x - 10 + 10 = 5x + 1 + 10

6x = 5x + 11

Subtract 5x from both sides:

6x - 5x = 5x - 5x + 11

x = 11

To find the value of y, use corresponding angles thoerem.

When two parallel lines are crossed by a transversal, the angles in matching corners are correponding angles.

Corresponding angles are congruent.

Thus, we have:

y = 6x - 10

Substitiute x for 11:

y = 6(11) - 10

y = 66 - 10

y = 56°

ANSWER:

x = 11, y = 56°

We are given that Mike reads 5 pages an hour. This is the quotient of pages with respect to time. In this case, the time is the independent variable and the number of pages is the dependent variable since the number of pages depends on the time interval that is considered.

Answer:

4/15

Step-by-step explanation:

4/15 = 0.26666666...

We were told that the recipe uses 6 cups of flour to 1 1/10 cups of milk. Converting 1 1/10 to improper fraction, it becomes 11/10

Let x represent the number of cups of milk that would be used for 2 cups of flour. The equations would be as shown below

11/10 = 6

x = 2

By cross multiplying, we have

2 * 11/10 = 6 * x

6x = 22/10 = 11/5

x = (11/5) / 6

If we flip 6 such that it becomes 1/6, the division sign changes to multiplication. Thus, we have

x = 11/5 * 1/6 = 11/30

Thus, 11/30 cup of milk should be used

For this problem, we have three circles with different radii. We need to determine which circles are similar and point out the reason for our statement.

Every circle has the same shape, the only thing that sets them apart is the radii. Since we can represent the relationship between the radii as fractions, then all circles are similar. Due to this, the only correct option is the second one. "Circle 1 is similar to both circle 2 and circle 3".

Kareem needs to save $13,800 in total

He already got $3000 from his uncle.

Thus, he needs $13,800 - $3000 = $10,800 more

He will need to save up $10,800 in 3 years, that is 3 x 12 = 36 months

To find the amount he must save each month, we will divide $10,800 by 36:

It is the movement on the number line is right right left

The option (d) is correct .

Given,

The movement on the number line for the calculation

21 - (- 15) + (- 30)

To find the which of the following correctly represents the movement of calculation?

Now, According to the question:

21 - (- 15) + (- 30)

21 + 15 - 30 = 6

right right left

Hence, It is the movement on the number line is right right left

The option (d) is correct.

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To be able to determine which among the choices is a proportion, you check if each side has the same common ratio.

A. 8/10 = 6/8

Ratio: 0.80 = 0.75 (Not Proportional)

B. 3/4 = 12/15

Ratio: 0.75 = 0.80 (Not Proportional)

C. 4/6 = 9/12

Ratio: 0.67 = 0.75 (Not Proportional)

D. 6/9 = 8/12

Ratio: 0.67 = 0.67 (Proportional)

Since the ratio of each side of letter D is equal, Letter D is the one that is in Proportion.

The length and width of the rectangle are 4.04 and 32.67 respectively for which the area is a maximum.

What is mean by Rectangle?

A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.

Given that;

The rectangle is bounded by the x - axis and the semicircle y = 49 - x².

Since,

The area of rectangle with sides x and y is,

Area = x × y

A = xy

Since, The equation of the semicircle is;

y = 49 - x².

Substitute the values of y in equation (i), we get;

A = x (49 - x²)

A = 49x - x³

Now, Find the derivative and equate into zero,

A' = 49 - 3x²

A' = 0

49 - 3x² = 0

49 = 3x²

x² = 49/3

x = 7/√3

x = 7/1.73

x = 4.04

Hence, y = 49 - x²

y = 49 - (4.04)²

y = 49 - 16.3

y = 32.67

Since, The area is maximum when we can multiply x by y as;

Maximum area = 4.04 x 32.67

Maximum area = 132

Hence, The length and width of the rectangle are 4.04 and 32.67 respectively for which the area is a maximum.

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Given a rectangular box with an open top and square base, the dimensions of the box are:

The volume can be calculated as:

The area of the sides is:

The area of the base:

There are 4 lateral sides and 1 base (the top is open), so the total surface area is:

We have a fixed volume of 2048 in³, then:

Using this result on A_total:

To find the minimum surface area, we take the derivative:

Now, we calculate the minimum total area using a:

Answer: No solutions

Step-by-step explanation:

[tex]5|x+1|+7=-38\\\\5|x+1|=-45\\\\|x+1|=-9[/tex]

However, as absolute value is non-negative, there are no solutions.

The volume formula of a sphere is :

From the problem, the radius of the sphere is r = 5.7 cm

Using the formula above :

ANSWER :

775.3 cm^3

Answer:

Step-by-step explanation:

first find seconds in an hour

60(seconds in a minute) *60(minutes in an hour) = 3600 seconds in an hour

then multiply 8 by 3600 to see how many feet per hour

28,800

we need miles so there are 5280 feet in a mile

28800/5280 is 5.45454545 or 5.455 miles per hour

Given the equation:

Where y represents the total length of the road (in miles), and x represents the number of days the crew has worked.

(a) What was the road’s length when the crew started working?

When the crew started working we have x = 0. Then:

The road's length is 53 miles.

(b) What is the change per day in the road’s length?

The change per day in the road's length is 2 miles/day.

Step 1:

Write the function

Step 2:

Factorize both the numerator and the denominator.

Step 3:

A hole is a common factor between the numerator and the denominator.

Hole: x + 5 = 0

x = -5

Final answer

Hole is -5

Answer:

1/36

Explanation:

In a single die, the total number of outcomes = 6

• The probability of rolling a 6 the first time = 1/6

• The probability of rolling a 1 the second time = 1/6

Thus, the probability of rolling a 6 the first time and a 1 the second time is:

You have that the movie aspect ratio is 2.15 : 1, that is, you have following relation between width and height:

2.15/1 = 2.15 = 215%

that is, the widht is 2.15 times the height, or the width is 215% longer than height.

In order to determine what is the percentage of the image shown, you calculate the percentage that widht is more longer than height. You have a TV of 62.72 width and 35.28 in height:

62.72/35.28 = 1.77 = 177%

that is, width of TV is 1.77 times longer than height, or width is 177% longer.

Hence, on TV will be not possible to watch the complete image. And the percentage shown is of 177%.

The given expression is

where x=3

the dot in the expression means multiplication

substitute into the expression above we have

Applying BODMAS

Therefore the value of the expression is 72