2 years ago

. Select ALL the true statements. There is more than one answer. *

1 answer:

8 0

I think the answer is D

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harina [27]

Answer:

20. 300π m³

21. 457 1/3 π cm³

Step-by-step explanation:

20. r = 10 ÷ 2 = 5

V = 5² × 12 × π = 25 × 12π=300π m³

21. r = 14 ÷ 2 = 7

$V = \frac{4}{3} \pi 7x^{3}$

V = 457 1/3 π cm³

4 0

3 years ago

ozzi

In this question , we have to find the postulate that is illustrated for the real numbers

$5+(-5) = 0$

The postulate is Additive inverse postulate which states that

$a+ (-a) =0$

Where a is the real number and -a is the opposite of a. It states that , if opposite of a number is added with the number, the result is 0 .

3 0

3 years ago

Fiesta28 [93]

Answer:

<h2>1) 9/2 = 5/4</h2><h2>5) False</h2><h2>6) $66</h2><h2>7) x=7</h2><h2>8) x=69</h2>

Step-by-step explanation:

5 0

2 years ago

mihalych1998 [28]

A^2-b^2=(a+b)(a-b)

1: x^2-4=(x+2)(x-2)
2: (x+8)(x-8)
3: (x+10)(x-10)
4: (x+14)(x-14)

7 0

2 years ago

sineoko [7]

The answer is A because 75 + 15 is 90

4 0

3 years ago