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Karolina [17]
3 years ago
9

if the measure of <BEC is (2x+3)° and x=30, which expression could represent the measure of <AED?​

Mathematics
1 answer:
Maurinko [17]3 years ago
8 0

Answer:

The answer is 3x-27

Step-by-step explanation:

If the angles are vertical from each other it means they are congruent. 2x+30 is 63, you plug in the x, 2(30)+30. You do that to the second one and also get 63, 3(30)-27. Therefore 3x-21 is the answer.

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Answer:

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2 years ago
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If M is the set of all square numbers less than 80 and N is the set of all non-negative even numbers that are under 30, Write th
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Answer:

Step-by-step explanation:

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M = (4, 9, 16, 25, 49, 64)

Even numbers are numbers that are divisible by 2 without remainder.

If N is the set of all non-negative even numbers that are under 30, then

N = (2, 4, 6, 8 ,10, 12, 14, 16,18,20, 22, 24, 26,28)

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8 0
3 years ago
What is 2X +7 = 5X -8
inna [77]

Answer:

X=5

Step-by-step explanation:

2X+7=5X-8

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5 0
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If a given data point is (1,4) and the line of best fit is y = 1.5x + 3.25, what's the residual value?
Svetlanka [38]

Answer:

The residual value is -0.75

Step-by-step explanation:

we know that  

The residual value is the observed value minus the predicted value.

RESIDUAL VALUE=[OBSERVED VALUE-PREDICTED VALUE]

where

Predicted value.--> the predicted value given the current regression equation

Observed value. --> The observed value for the dependent variable.

in this problem

we have the point (1,4)

so

The observed value is 4

<em>Find the predicted value  for x=1 </em>

y =1.5(1)+3.25=4.75

predicted value is 4.75

so

RESIDUAL VALUE=(4-4.75)=-0.75

4 0
3 years ago
Suppose the length of each side of a square is increased by 5 feet.if the perimeter of the square is now 56 feet.what were the o
skelet666 [1.2K]
We can find the length of the sides now by dividing 56 by 4, which gives us 19.  Subtracting 5 from 19 gives us our answer of 14 feet.
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3 years ago
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