All categories

3 years ago

Use the distributive property to expand -4 (-2+3x). Which is an equivalent expression?

Mathematics

1 answer:

Verizon [17]3 years ago

4 0

Answer:

The answer should be <u>8-12x......if i take a wild guess out of your answer choices, would say C. </u>

Step-by-step explanation:

<em>[carry over the -4 to (-2) and (3x) ]</em>

<u />

You might be interested in

If 5 + 20 times 2 Superscript 2 minus 3 x Baseline = 10 times 2 Superscript negative 2 x Baseline + 5, what is the value of x? –

sp2606 [1]

Answer:

<h3>Option D) 3 is correct</h3><h3>Therefore the value of x is 3</h3>

Step-by-step explanation:

Given equation is $5+20\times (2)^{2-3x}=10\times (2)^{-2x}+5$

<h3>To find the value of x :</h3>

First solving the given equation we have,

$5+20\times (2)^{2-3x}=10\times (2)^{-2x}+5$

$5+20\times (2)^{2-3x}-5=10\times (2)^{-2x}+5-5$

$20\times (2)^{2-3x}=10\times (2)^{-2x}$

$20\times (2)^2.(2)^{-3x}=10\times (2)^{-2x}$

$20\times 4.(2)^{-3x}=10\times (2)^{-2x}$

$80(2)^{-3x}=10\times (2)^{-2x}$

$\frac{80}{10}(2)^{-3x}=\frac{10\times (2)^{-2x}}{10}$

$8(2)^{-3x}=(2)^{-2x}$

$\frac{(2)^{-3x}}{(2)^{-2x}}=\frac{1}{8}$

$(2)^{-3x}.(2)^{2x}=\frac{1}{2^3}$ ( by using the property $\frac{1}{a^{-m}}=a^m$ )

$2^{-3x+2x}=\frac{1}{2^3}$ ( by using the property $a^m.a^n=a^{m+n}$ )

$2^{-x}=\frac{1}{2^3}$

$\frac{1}{2^x}=\frac{1}{2^3}$ ( by using the property $a^{-m}=\frac{1}{a^m}$ )

Since bases are same so powers are same

Therefore we can equate the powers we get x=3

<h3>Therefore the value of x is 3</h3><h3>Option D) 3 is correct</h3>

5 0

3 years ago

Read 2 more answers

Which mathematician used the lengths of the chords created by the position of the Sun during the seasons to create a table of si

Nastasia [14]

I got this wrong...but it's Hipparchus.

4 0

3 years ago

Read 2 more answers

What is the square root of 92

MrRa [10]

If I got it right it is 9.59166305.

6 0

3 years ago

Read 2 more answers

What is the slope of the line that passes through the points (6, 7) and (16,22)??? i have been

Stolb23 [73]

Answer:

1.5

Step-by-step explanation:

picture

5 0

2 years ago

What is the ratio of 1:6 and 3:8

butalik [34]

1:6 is the same as 1/6

3:8 is the same as 3/8

6 0

3 years ago