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Citrus2011 [14]
3 years ago
9

Evaluate the following expression using the values given:

Mathematics
1 answer:
LiRa [457]3 years ago
5 0
Hey there! :) 

2x - 3y - z ; When x = -2, y = 3, & z = -2

Since we're given the values of x, y, & z, we can very simply plug everything in! 

2(-2) - 3(3) - (-2)

Simplify.

(-4) + (-9) + 2

Get rid of parenthesis.

-4 - 9 + 2

Remember to do PEMDAS! 

Parenthesis
Exponents
Multuply
Divide
Add
Subtract

So, since adding comes before subtracting, let's add! :) 

-4 - 9 + 2

-4 - 7

Simplify.

-11

So, our answer is [A] : -11

~Hope I helped!~
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Answer:

<h2>The measure of angle EYH is 25°.</h2>

Step-by-step explanation:

Notice that ray EY is a tangent and ray VY is a secant.

In this case, we use the theorem that states <em>"the angle formed by a tangent and a secant is half of the difference of the intercepted arcs".</em>

In this case, the intercepted arcs are EH  and EV. We know that a whole arc is 360°, so

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Using the theorem, we have

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A square of side 72 cm and a rectangle of length 90 cm have same perimeter. Find the difference in areas ?
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324 cm²

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