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4 years ago

The regular price of a DVD is $18, then it is put on sale for $14. Which integer represents the change in the price?

Mathematics

1 answer:

strojnjashka [21]4 years ago

6 0

The answer is -4 cause i just did the question.

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Lynn has a watering can that holds 8 cups of water. How many cups of water will 13 plants get

JulsSmile [24]

Answer:

13 plants get 8 cups

so 1 plant get 8/13 = 0.615 cups

Step-by-step explanation:

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3 years ago

Two numbers that will multiply to -21 and also add to 4

Alja [10]

Answer:

the numbers are 7 and -3

Step-by-step explanation:

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3 years ago

Read 2 more answers

Help!!Need help please help me

irina [24]

8x-6y=-96 add to this -4 times the second equation...
-8x-12y=-48
___________

-18y=-144

y=8, this makes 8x-6y=-96 become:

8x-48=-96

8x=-48

x=-6

so the solution to the system of equations is the point:

(-6,8)

3 0

3 years ago

A Plane is flying at an altitude of 11,000 meters. from the pilot the angle of depression to the airport tower is 22 degrees, ho

Lisa [10]

Check the picture below.

make sure your calculator is in Degree mode.

4 0

4 years ago

PLEASE ANSWER WITH AN EXPLANATION! THANK YOU

lubasha [3.4K]

Answer:

$\large\boxed{A=153\ cm^2}$

Step-by-step explanation:

<em>Look at the picture.</em>

We have

square with side length a = 9

trapezoid with base lengths b₁ = 9 and b₂ = 6 and the height length h = 6

right triangle with legs lengths l₁ = 3 + 6 = 9 and l₂ = 6

The formula of an area of a square

$A=a^2$

Substitute:

$A_I=9^2=81\ cm^2$

The formula of an area of a trapezoid:

$A=\dfrac{b_1+b_2}{2}\cdot h$

Substitute:

$A_{II}=\dfrac{9+6}{2}\cdot6=\dfrac{15}{2\!\!\!\!\diagup_1}\cdot6\!\!\!\!\diagup^3=(15)(3)=45\ cm^2$

The formula of an area of a right triangle:

$A=\dfrac{l_1l_2}{2}$

Substitute:

$A_{III}=\dfrac{(9)(6)}{2}=\dfrac{54}{2}=27\ cm^2$

The area of the shape:

$A=A_I+A_{II}+A_{III}\\\\A=81+45+27=153\ cm^2$

8 0

3 years ago