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2 years ago

Which expression is equivalent to -4(5x - 9) + 6(2x + 5)?

Mathematics

1 answer:

schepotkina [342]2 years ago

7 0

Answer:

-4(5x - 9) + 6(2x + 5)

multiplication of:

(-).(-) = +

(-).(+) = -

(+).(-) = -

(+).(+) = +

-4(5x) -4(- 9) + 6(2x + 5)

(-)(+)4(5x) (-)(-)4(9) (+)(+) 6(2x) (+)(+)6( 5)

-20x + 36 + 12x + 30

-20x + 12x + 36 + 30

-8x + 66

Step-by-step explanation:

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3 hundreds + 7 hundreds in standard form

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3 hundreds + 7 hundreds = 1 thousand
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3 years ago

What is the smallest positive degree angle measure equivalent to sin^-1 (0.391)?

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Given:

The value is:

$\sin^{-1}(0.391)$

To find:

The smallest positive degree angle measure equivalent to $\sin^{-1}(0.391)$ .

Solution:

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Using the scientific calculator, we get

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2 years ago

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3 years ago

Rhe sum of three consecutive ofd numbers is 87. What is the smallest of these numbers?

neonofarm [45]

Answer:

The smallest of the said odd numbers is 27

Step-by-step explanation:

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That is 87/3 = 29, which is an odd number

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3 years ago

Compare the weather on two different days using an inequality. Then see if their comparisons change by finding the absolute valu

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Inequalities are used to compare unequal expressions.

The actual comparison is: $\mathbf{-3.5 < 5}$ or $\mathbf{5 > -3.5}$

The temperatures are given as:

$\mathbf{Temperature = -3.5F,\ \ 5F,\ \ 1.5F,\ \ -0.5F,\ \ -2F,\ \ 2.5F,\ \ -4F}$

From the above list, we have:

$\mathbf{Day \ 1= -3.5F}$

$\mathbf{Day \ 2= 5F}$

By comparison,

$\mathbf{-3.5 < 5}$ or $\mathbf{5 > -3.5}$

Using absolute values, the inequalities are:

$\mathbf{|-3.5| < |5|}$ or $\mathbf{|5| > |-3.5|}$

Hence, the actual comparison is:

$\mathbf{-3.5 < 5}$ or $\mathbf{5 > -3.5}$

Read more about inequalities and absolute values at:

brainly.com/question/24797699

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3 years ago

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