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3 years ago

The table shows partial results of a survey about students who speak foreign languages.

Mathematics

2 answers:

Lady bird [3.3K]3 years ago

8 0

THE ANSWER IS C (◡ ‿ ◡ ✿)

Elan Coil [88]3 years ago

7 0

Oh this is easy.I completed the table. C) 40%

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Find an equation for the line with the given properties,express the equation in slope-intercept form. p=(-3,5) and q=(-2,3)

kakasveta [241]

(-3,5)(-2,3)
slope = (3 - 5) / (-2 - (-3) = -2 / 1 = -2

y = mx + b
slope(m) = -2
use either of ur points...(-2,3)....x = -2 and y = 3
now we sub and find b, the y int
3 = -2(-2) + b
3 = 4 + b
3 - 4 = b
-1 = b

so ur equation is : y = -2x - 1 <==

8 0

3 years ago

Maria want to make a footstool in the shape of a cylinder, as show below. She wants to fill the footstool with foam and cover it

noname [10]

Answer:

She'll need 8143 cubic inches of foam and 1,809.6 square inches of fabric.

Step-by-step explanation:

Assuming you want to know how much foam and fabric she will need...

First the foam... so we need to determine the volume of that footstool. The Volume of a cylinder is given by:

V = π * r² * h

So, we plug in the numbers:

V = π * 12² * 18 = π * 144 * 18

V = 2,592 π = 8143 cubic inches.

Now for the fabric... we'll assume Maria wants to cover the side of the stool and the top, but not the bottom.

The side of the stool is basically a rectangle of width of 18 inches and a length of the circumference of the base of the stool. The circumference is given by: C = 2 π * r of course, so C = 24π = 75.14 inches.

So the lateral surface of the cylinder is:

LS = 18 * 75.14 = 1,357.2 sq inches.

Then we need to calculate the area of the top... which is easy:

A = π * r² = π * 12² = 144 π = 452.4 sq inches

So, to cover the lateral side of the footstool and its top, she needs to use:

TA = 1,357.2 + 452.4 = 1,809.6 sq inches of fabric.

5 0

3 years ago

Read 2 more answers

What is the distance between (-11, -20) and (-11, 5)?

PolarNik [594]

The distance between (-11, -20) and (-11,5) is 25. Since both of the x values are the same, we know that they are both on the same x line. For the y values, -20 and 5, Their difference from each other is 25. Therefore, the distance between those coordinates are 25.

6 0

3 years ago

Read 2 more answers

Express the ratio in the simplest form. 20 gallons to 0.75 gallons

expeople1 [14]

ANSWER

The ratio in the simplified form is

80:3

EXPLANATION

We want to express 20 gallons to 0.75 gallons as a ratio in its simplest form.

We obtain the ratio as follows:

$20:0.75$

This is the same as

$20: \frac{3}{4}$

We multiply each term in the ratio by 4 to obtain;

$20 \times 4:0.75 \times 4$

This gives us,

$80:3$

5 0

3 years ago

This is a radical equation

riadik2000 [5.3K]

To solve for p, square both sides and move the equation to one side is equal to zero. Then factor. I chose -2 and -5 because -2 x -5 = 10 and -2 + -5 = -7. After factoring, solve p-5=0 and p-2=0. When one of those equals zero then the equation (p-5)(p-2)=0 is true.

7 0

4 years ago