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2 years ago

Write each decimal or fraction as a percent round to the nearest 10th of a percent where necessary 24/25

Mathematics

1 answer:

OLga [1]2 years ago

3 0

Answer:24 1/2

Step-by-step explanation:

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Which expressions are equivalent to 1/81? check all that apply.

Tamiku [17]

Answer: here are some examples :

8-1 9^

-2 9^

8/9^

4 9^

8/9^

10 9^

-6 x 9^

3 9^5 x 9^-7

Step-by-step explanation: pls mark branliest

6 0

3 years ago

What polynomial identity should be used to prove that 21=25-4?. A. Difference of cubes B. Difference of Squares C. Square of Bin

Hunter-Best [27]

21 = 25 - 4
21 = 5² - 2²
21 = ( 5 - 2 ) · ( 5 + 2 )
21 = 3 · 7
21 = 21
Answer: B ) Difference of Squares

6 0

4 years ago

(r, 7), (11, 8), m = -1/5

soldier1979 [14.2K]

Answer:

The value of r is 16

Step-by-step explanation:

<u><em>The correct question is</em></u>

Find out the value of r if the slope between the two ordered pairs is m=-1/5

we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have the points

(r, 7), (11, 8)

substitute the values

$m=\frac{8-7}{11-r}$

$m=\frac{1}{11-r}$

Remember that

$m=-\frac{1}{5}$

equate the equations

$\frac{1}{11-r}=-\frac{1}{5}$

solve for r

Multiply in cross

$-(11-r)=5\\r-11=5\\r=11+5\\r=16$

4 0

3 years ago

Fred bought nine new collectable cards to add to his collection. The next day his dog ate half of his collection.

Anna [14]

Answer:

half

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

A wall in a classroom has a length of 16 ft and a diagonal of 20 ft. A student is painting a rectangular mural on the wall. The

katen-ka-za [31]

Answer:

B. 4 ft

Step-by-step explanation:

First, find the width of the wall.

The length, width, and diagonal form a right triangle, where the diagonal is the hypotenuse and the length and width are the 2 legs.

Use the pythagorean theorem and solve for a, the width of the wall.

a² + b² = c²

a² + 16² = 20²

a² + 256 = 400

a² = 144

a = 12

So, the width of the wall is 12 feet.

Solve for the width of the mural. Again, the diagonal, length, and width form a right triangle.

Use the pythagorean theorem again and solve for a, the width of the mural:

a² + b² = c²

a² + 6² = 10²

a² + 36 = 100

a² = 64

a = 8

So, the width of the mural is 8 feet.

Now, find the difference between the widths of the wall and mural:

12 - 8

= 4

So, the difference between the two widths is B. 4 ft

3 0

3 years ago

Read 2 more answers