2 years ago

Expressions in 1 variable if x=144. Problem:1/4x-7

Mathematics

1 answer:

Vikentia [17]2 years ago

8 0

The answer to this question is 29

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Is is true that the coefficient of the expression 18z-7(-3+2z) of z is 13

Sever21 [200]

18z-7(-3+2z)
= 18z + 21 - 14z
= 4z + 21

answer is False
coefficient of z is 4, not 13

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2 years ago

For what value of x does 3^4x=27^x-3? a. –9 b. –3 c. 3 d. 9

Irina18 [472]

$\bf 3^{4x}=27^{x-3}\implies 3^{4x}=(3^3)^{x-3}\stackrel{~\hfill \textit{same base, the exponents must also be the same}}{\implies 3^{4x}=3^{3(x-3)}\implies 3^{4x}=3^{3x-9}\qquad } \\\\\\ 4x=3x-9\implies x=-9$

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3 years ago

Help what is 10*_=60

lozanna [386]

16.666666666667%

How much is 10 out of 60 written as a percentage? Convert fraction (ratio) 10 / 60 Answer: 16.666666666667%

4 0

3 years ago

Read 2 more answers

What is the probability that the product of two dice is greater than 15 on two separate rolls?

ratelena [41]

Answer:

25/324

Step-by-step explanation:

Make a table of possible products:

$\left[\begin{array}{ccccccc}&1&2&3&4&5&6\\1&1&2&3&4&5&6\\2&2&4&6&8&10&12\\3&3&6&9&12&15&18\\4&4&8&12&16&20&24\\5&5&10&15&20&25&30\\6&6&12&18&24&30&36\end{array}\right]$

Of the 36 results, 10 are greater than 15.

The probability the product is greater than 15 on a single roll is 10/36 = 5/18.

The probability the product is greater than 15 on two rolls is (5/18)² = 25/324.

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2 years ago

If qrs is congruent to tuv, which congruences are true by CPCTC ? Check all that apply

Fed [463]

Where are the choices -

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2 years ago