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3 years ago

What value of x makes the equation true?

Mathematics

2 answers:

jek_recluse [69]3 years ago

8 0

Answer:

A.) x = -4

Step-by-step explanation:

1. Simplify the expression

1.4x + 2.6x = -16

Simplify the arithmetic:

4x = -16

2. Isolate the x

4x = -16

Divide both sides by 4:

$\frac{4x}{4}$ = $\frac{-16}{4}$

Simplify the fraction:

x = $\frac{-16}{4}$

Find the greatest common factor of the numerator and denominator:

x = $\frac{-4 * 4}{1 * 4}$

Factor out and cancel the greatest common factor:

x = -4

A.) x = -4

gtnhenbr [62]3 years ago

4 0

Answer:

$1.4x + 2.6x = - 16 \\ 4x = - 16 \\ x = \frac{ - 16}{4} \\ x = - 4 \\ thank \: you$

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Answer this question please and thank you

Molodets [167]

Answer:

$\frac{1}{729}$

Step-by-step explanation:

1) Use the division distribution property: (x/y)^a = x^a/y^a.

$\frac{1}{9^{3} }$

2) Simplify 9³ to 729.

$\frac{1}{729}$

Therefor the answer is 1/729 and in decimal form it would be 0.001372.

8 0

3 years ago

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What does 1/2 (40x60) =

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40*60=2400
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Write the given trinomial if possible as a square of a binomial or as an expression opposite to a square of a binomial: 15ab-9a^

MrMuchimi

Answer:

$- \bigg(3a - \frac{5}{2} b) \bigg)^{2}$

Step-by-step explanation:

$15ab-9a^2-6 \frac{1}{4} b^2 \\ \\ = 15ab-(3a)^2-\frac{6 \times 4 + 1}{4} b^2 \\ \\ = 15ab-(3a)^2-\frac{24+ 1}{4} b^2 \\ \\ = 15ab-(3a)^2-\frac{25}{4} b^2 \\ \\ = 15ab- (3a)^2- \bigg(\frac{5}{2} b \bigg)^2 \\ \\ = - \{ - 15ab + (3a)^2 + \bigg(\frac{5}{2} b \bigg)^2 \} \\ \\ = - \{ (3a)^2 + \bigg(\frac{5}{2} b \bigg)^2 - 15ab \} \\ \\ = - \bigg(3a - \frac{5}{2} b \bigg)^{2}$