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notka56 [123]
3 years ago
12

Question 15 of 45 If x = 3 and y= -2, then 22 – 2y x2 + 2y

Mathematics
2 answers:
beks73 [17]3 years ago
8 0

Answer:

3

Step-by-step explanation:

Given

\frac{x^2-xy}{x^2+2y} ← substitute x = 3 and y = - 2

= \frac{3^2-3(-2)}{3^2+2(-2)}

= \frac{9+6}{9-4}

= \frac{15}{5}

= 3

kenny6666 [7]3 years ago
7 0
Substitute x for 3 & y for -2

22 - 2(-2) = 26
3(2) + 2(-2) = 2
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3 years ago
1. The triangles above are similar. What is the ratio (larger to smaller) of the perimeters? (1 point)
eimsori [14]

Answer:

Ratio = 5/3

The ratio (larger to smaller) of the perimeters is 5/3

Step-by-step explanation:

Attached is an image of the two triangles.

Since both triangles are similar, the ratio of their perimeter is equal to the ratio of each similar sides.

Ratio = P1/P2 = S1/S2

Similar side for triangle 1 S1 = 15ft

Similar side for triangle 2 S2 = 9ft

Substituting the values;

Ratio = 15ft/9ft = 5/3

Ratio = 5/3

The ratio (larger to smaller) of the perimeters is 5/3

7 0
3 years ago
Anthony decided to buy two DVDs that were not included in the deal. His price after tax was $21.60. What was the cost of the two
dimulka [17.4K]
What was the Price before
8 0
3 years ago
If you know that​ R' (20)=50 and​ R''(20)=-4, approximate​ R'(24)
vladimir1956 [14]

Approximate <em>R'</em> by using a linear approximation: for <em>x</em> close enough to 24, you have

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Then

<em>R'</em> (24) ≈ <em>R'</em> (20) + <em>R''</em> (20) (24 - 20) = -4 + 50 (24 - 20) = 196

4 0
3 years ago
What is the right answer
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Answer:

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5 0
3 years ago
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