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2 years ago

Which pair angles must be supplementary? 21 5 3 4

Mathematics

1 answer:

Keith_Richards [23]2 years ago

4 0

4 and 1

Step-by-step explanation:

Supplementary means the angle is 180 degrees so 4 is the only complete obvious 180 degree angle and 1 just cause i know it can't be 5.

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12. (07.06 LC) A library building is in the shape of a rectangle. Its floor has a length of (3x + 5) meters and a width of (5x −

Goshia [24]

ANSWER

$15 {x}^{2} + 22x - 5$

EXPLANATION

It was given that, the length of the rectangular building is

$(3x + 5) \: meters$

and the width of the is

$(5x - 1) \: meters$

The area of a rectangular building is calculated using the formula for finding the area of a rectangle.

$A = l \times w$

Since the dimensions are given in terms of x, the area is also a function of x,

$A(x) = (3x +5 )(5x - 1)$

We expand to get,

$A(x) = 3x(5x - 1) + 5(5x - 1)$

$A(x) = 15 {x}^{2} - 3x + 25x - 5$

$A(x) = 15 {x}^{2} + 22x - 5$

meters square

8 0

3 years ago

How would you describe a monomial? in less than 25 words.

bonufazy [111]

Answer:

number, variable, or a product of a number and one or more variables

3 0

2 years ago

Horace is running a race. He wonders how fast he is running.

zlopas [31]

Answer:

C. Kiometers per hour. I think

4 0

3 years ago

Alice skates 2/5 mile in 1/5 hour. Elizabeth skates 2/3 mile in 2/9 hour. How far did elisabeth escape in in 1 hour?

sergeinik [125]

$Question$

Alice skates 2/5 mile in 1/5 hour. Elizabeth skates 2/3 mile in 2/9 hour. How far did elisabeth escape in in 1 hour?

Answer:

The Correct Answer is $\frac{8}{9}$

Complete the multiplication and the equation becomes

$\frac{2}{9}$ + $\frac{2}{3}$ = ?

The two fractions now have like denominators so you can add the numerators.

$\frac{2+6}{9}$ = $\frac{8}{9}$

Therefore, The Answer Is $\frac{8}{9}$

Hope this helps!

$xXxAnimexXx$

6 0

3 years ago

There are 16 reams of paper in a case. How many total teams of paper are in 11 cases ?

pentagon [3]

Answer:

176 reams in 11 cases

Step-by-step explanation:

1 = 16

1 x 11 = 11

16 x 11 = 176

3 0

3 years ago