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3 years ago

19. Jeremy mowed several lawns to earn money for camp. After he paid $17 for

Mathematics

1 answer:

Gekata [30.6K]3 years ago

6 0

Answer:

17+75=?

Step-by-step explanation:

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The diagonals of rectangle ABCD intersect at point E. If AE = 2x + 5, and BD = 5x + 2, what is AC?

Mkey [24]

C. 42 units

Step-by-step explanation:

I have attached a diagram to help you understand this problem. By looking at the diagram you can see that AE is half of BD, and that BD will be equal to AC. So we need to figure out the length of line BD to get AC.

To do this, you will multiply the length of AE by 2 and set it equal to BD.

$2(2x+5)=5x+2$

Then distribute, multiply what is in the parentheses by 2.

$4x+10=5x+2\\\\$

Subtract 4x from both sides.

$10=1x+2$

Subtract 2 from both sides.

$8=1x$

x = 8

Now that we have x, we can plug it into the equation to find BD.

$5 * 8 + 2=42$

BD is equal to 42 units, so we know...

AC = 42 units

4 0

3 years ago

What is the period of the sinusoid given by y=-3cos(2pi/5x)? Is it 2/5? Please explain.

alex41 [277]

Y = a sin b x
amplitude = a
period = 2π /b.

y = 6 sin x
a = 6
b = 1

a, the amplitude, represents the highest point a graph reaches;
a = 6

The period represents the length of a cycle-

the period = 2π /b = 2π/1 = 2π

6 0

4 years ago

Read 2 more answers

Brady jogs laps around a circular park with a fountain at the center. Which table could represent Brady’s distance from the foun

olasank [31]

Answer:

A 2-column table with 5 rows. The first column is labeled time with entries 0, 2, 4, 6, 8. The second column is distance (feet) with entries 50, 50, 50, 50, 50.

Step-by-step explanation:

we know that

The radius of a circle is the distance from the center of the circle to any point on its circumference.

The radius is always constant at any point on the circle.

In this problem

A fountain represent the center of the circular park

Brady’s distance from the fountain represent the radius of the circular park

That means

Brady’s distance from the fountain after jogging around the path for a number of minutes is a constant

therefore

The answer is

A 2-column table with 5 rows. The first column is labeled time with entries 0, 2, 4, 6, 8. The second column is distance (feet) with entries 50, 50, 50, 50, 50.

The radius of the circular park is 50 feet

9 0

3 years ago

Read 2 more answers

Х+3 3x-18 3х+9 Simplify the equation

LenKa [72]

Answer:

7x-6

Step-by-step explanation:

x+3+3x-18+3x+9 (Add like terms)

(x+3x+3x) (3-18+9) (solve) ( x is the same as 1x)

(7x) (-6)

7x-6

3 0

4 years ago

If z varies directly with w and z = 20 when w = 5 find z when w = 8

anastassius [24]

Answer:

Step-by-step explanation:

its not

3 0

3 years ago