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3 years ago

Consider the expression 7x2 + 9 + 3x. Tell whether each statement is

Mathematics

1 answer:

AfilCa [17]3 years ago

6 0

Answer:

A is false

b is true

c is false

d is false

Step-by-step explanation:

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How to solve 3x/7 - 1/2 = 1/14

nlexa [21]

Answer: 4/3

Step-by-step explanation:

First off, we should all get the denominators to be the same.

14 is the LCM of each of the denominators, so:

3x / 7 times 2/2 = 6x/14

-1/2 times 7/7 = -7/14

and 1/14 is 1/14

So now we have

6x/7 + -7/14 = 1/14

We can multiply everything by 14 to get rid of the denominator completely, which leaves us with:

6x - 7 = 1

Then we just solve like a normal equation:

6x = 8

x = 8/6 , or 4/3

8 0

3 years ago

Find the volume of the rectangle 4 2/3cm,9 1/8cm, 2cm

amm1812

Answer:

$\large\boxed{V=85\dfrac{1}{6}\ cm^3}$

Step-by-step explanation:

The formula of a volume of a rectangular prism:

$V=lwh$

l - length

w - width

h - height

We have

$l=4\dfrac{2}{3}\ cm=\dfrac{4\cdot3+2}{3}\ cm=\dfrac{14}{3}\ cm\\\\w=9\dfrac{1}{8}\ cm=\dfrac{9\cdot8+1}{8}\ cm=\dfrac{73}{8}\ cm\\\\h=2\ cm$

Substitute:

$V=\dfrac{14}{3}\cdot\dfrac{73}{8}\cdot2=\dfrac{7}{3}\cdot\dfrac{73}{2}\cdot1=\dfrac{511}{6}=85\dfrac{1}{6}\ cm^3$

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3 years ago

Do you know the answer to this question

Vika [28.1K]

Answer:

125$ worth because you would not spend it all if you picked 625 and the others would give way too many away

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3 years ago

Alex bought soccer shoes on sale

Radda [10]

He spent $34.50 in all

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2 years ago

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vovikov84 [41]

Slope m= 2x/-4
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3 years ago