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1 year ago

Evaluate the expression a - 4 when a = -8

Mathematics

1 answer:

natima [27]1 year ago

6 0

Answer:

-12

Step-by-step explanation:

To evaluate the expression the known value of a = -8 can be substituted in so the equation becomes -8 - 4.

From there the subtraction can be completed which equals -12. This can be visually seen on a number line if you look at -8 and move left 4 spaces.

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2 years ago

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wel

Answer:

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Step-by-step explanation:

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2 years ago

a parking garage charges $5 for the first hour of parking and $1.75 for each additional hour. if y represents the total cost and

victus00 [196]

In this exact order:
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2 years ago

Which inequality is equivalent to this one?<br>Y-8≤-2

Arlecino [84]

Answer:

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Step-by-step explanation:

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2 years ago

Leah claims that these figures are not similar. When she compared the heights, she wrote 27. Then she compared the bases and got

Flauer [41]

Answer:

<h2>Leah is actually wrong, because those rectangles are similar.</h2>

Step-by-step explanation:

Remember that similarity is about having proportional sides and congruent angles. When we have congruent sides, then those rectangles are congruent not similar.

In this case, to find the similarity, Leah should compare bases and heights thorugh division, because the ratio between heights and the ratio between bases must be equal. So, let's divide.

$\frac{21}{6}=3.5$

$\frac{7}{2}=3.5$

As you can observe, both ratios are equal.

Therefore, those rectangles are congruent.

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2 years ago