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2 years ago

11

Which of the following statements demonstrates the associative property of multiplication? A. 4. (3x6) = (4 x 3) · 6. B 6x4 = 4x

6. C -3 x 1 = -3. D 2(24) = 2(20 + 4)

1 answer:

scoray [572]2 years ago

6 0

I hope this helps but it is either d or a because parentheses and another term for multiplication and so is a dot

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How did you do the work

ANEK [815]

Answer:

I just + , - , x , ÷ then it will =

Step-by-step explanation:

Hope this helps

!

3 0

1 year ago

The number of boys of grade 6 students is 220.This is 40more than number of boys grade seven students. How many grade seven boy

belka [17]

Answer:

Given

no of Grade 6 students = 220

no of Grade 7 students = 40 more than grade 6 students

Step-by-step explanation:

boys Grade 7 students = no of Grade 6 students - 40 more than grade 6 students

boys Grade 7 students = 220 - 40

boys Grade 7 students = <u>180 grade 7 boy students are enrolled</u>

Therefore, 180 grade 7 boy students are enrolled.

6 0

2 years ago

Q2.<br>a) Is the equality √a^4 = a valid for all values of a? Explain.<br>

allochka39001 [22]

Answer:

The equality is only true for $a = 0\ and\ 1$ , not for all values

Step-by-step explanation:

Given

$(\sqrt a)^4 = a$

Required

Determine if it is valid

$(\sqrt a)^4 = a$

Evaluate the exponent

$(a^\frac{1}{2})^4 = a$

$a^\frac{1*4}{2} = a$

$a^2 = a$

Rewrite as:

$a^2 - a = 0$

Factorize

$a(a- 1) = 0$

$a =0\ or\ a - 1 = 0$

$a =0\ or\ a = 1$

<em>The equality is only true for </em> $a = 0\ and\ 1$ <em>, not for all values</em>

7 0

2 years ago

Round to the nearest hundredth. Express 160 pounds in kilograms

Marrrta [24]

Answer:

72.57 kg

Step-by-step explanation:

1 pound = .453592 kg

1 * 160 = 160 pounds

.453592 * 160 = 72.5748 kg

5 0

2 years ago

Read 2 more answers

8(x-4) simplify this equation

creativ13 [48]

Answer: 8x - 32

Work:

Simplify using the distributive property of multiplication.

8(x) = 8x
8(-4) = -32

Simplified expression: 8x - 32

3 0

2 years ago