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3 years ago

Find the slope and the y - intercept of the line below: 2x + 5y = - 25

Mathematics

1 answer:

Deffense [45]3 years ago

8 0

Answer:

slope = 2/5 and y Intercept = -5

y = 2/5x - 5

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A rock is in the shape of a sphere with a radius of 5.08 centimeters. The rock has a density of 5.5 grams per cubic centimeter.

SIZIF [17.4K]

The mass of the rock is 3020.27 grams , if a rock is in the shape of a sphere with a radius of 5.08 centimeters and the rock has a density of 5.5 grams per cubic centimeter,

Step-by-step explanation:

The given is,

Radius of the rock is 5.08 cm (Sphere)

Density of rock 5.5 grams per cubic centimeters

Step:1

Formula for volume of sphere,

$Volume, V= \frac{4}{3} \pi r^{3}$ ..........................(1)

Where, r - Radius of sphere

From the given values,

r = 5.08 cm

Equation (1) becomes,

$V= \frac{4}{3} \pi (5.08)^{3}$

$V= \frac{4}{3} (3.1415) (5.08)^{3}$

$= \frac{4}{3} (3.1415) (131.097)$

V = 549.14 cubic centimeters

Step:2

Mass of rock = Volume of rock × Density of rock

= 549.14 × 5.5 ( ∵ $cm^{3} (\frac{ gram}{cm^{3}} ) = gram$ )

= 3020.27 grams

Mass of the rock = 3020.27 grams

Result:

The mass of the rock is 3020.27 grams , if a rock is in the shape of a sphere with a radius of 5.08 centimeters and the rock has a density of 5.5 grams per cubic centimeter,

6 0

3 years ago

Ted ran 35 miles less than Mary last week.<br> Ted ran 13 miles. How many miles did<br> Mary run?

zloy xaker [14]

35+13=48 she ran 35 more and fe only ran 13
The answer is 48

8 0

3 years ago

Read 2 more answers

Which of the following expressions represent the distance between -6 and 7 on the number line?

JulijaS [17]

Answer:

Step-by-step explanation:

The lines mean the distance away from 0. When i say lines, I mean the two "l" that accompany the numbers. I forgot what there called (good job me).

Since we want to know how far apart they are, we need to add them.

5 0

3 years ago

Read 2 more answers

A photograph measuring 4 inches wide and 5 inches long is enlarged to make a wall mural. If the mural is 82 inches wide, how lon

Aliun [14]

I say it around 150 inches that what I think

6 0

3 years ago

I really don't understand help

Zielflug [23.3K]

Answer:

128 ft sq.

Step-by-step explanation:

The way you find the area of a square is by multiplying one side by another, and since it is a square, the sides are the same. This means that if we have a square with a side length of x, the way to find the area of that square is to multiply x by x, which can be written as $x^2$ . Now, since we're doubling this, we can say that double Mary's garden is $2 * x^2$ . If we substitute 8 in for x, we have to multiply $8^2$ by 2 or 8 by 8 by 2 to find our answer. 8 times 8 is 64 and 64 times 2 is 128.

5 0

3 years ago