3 years ago

This isn't an important question, so if you have other questions to answer move on.

1 answer:

4 0

If a = b then a + b cannot possibly equal b unless both a & b = 0, which defeats the purpose of the entire equation. If you plug in any possible value besides 0, the equation disproves itself.

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The table below shows the scores on a science test.

VLD [36.1K]

Answer:

Step-by-step explanation:

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3 years ago

Round the decimal to a place of the underlined digit 5.657

kipiarov [429]

Answer:

5.6

Step-by-step explanation:

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3 years ago

How do I solve and find x for this question

Fed [463]

Answer: -9.1

Explanation
-3x +12.4=39.7
First minus 12.4 from both sides

-3x +12.4=39.7
-12.4 -12.4
-3x=27.3
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2 years ago

If y varies directly as x and y = 21 when x = 5, find x when y = 42.

Lorico [155]

Answer: 10

<u>Step-by-step explanation:</u>

varies directly means: $\frac{y}{x} = k$

Step 1: solve for k ⇒ $\frac{21}{5} = k$

Step 2: plug in the given value and k to solve for the missing value: $\frac{42}{x} = \frac{21}{5}$

42(5) = 21(x)

$\frac{42(5)}{21} = \frac{21(x)}{21}$

2(5) = x

10 = x

5 0

3 years ago

What is the product of (4x-7)(4x+7)?

miskamm [114]

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

<span>(4x-7)(4x+7) = 16x^2 - 49

answer
</span>16x^2 - 49

6 0

3 years ago