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Verizon [17]
3 years ago
7

An isosceles triangle has two angles both equal to x°. The third angle is 60° bigger than either of these. Find the value of x°.

Mathematics
1 answer:
Elina [12.6K]3 years ago
5 0
X+x+(x+60)=180
3x+60=180
3x=120
x=40
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Annie estimates that the height of a bookcase is 78.25 in. The actual height is 75.50 in. To the nearest tenth of a percent, wha
Vinil7 [7]

Answer  

Find out the  percent error in Annie's estimate .

To prove

Formula

Percentage\ error = \frac{error\times 100}{exact\ value}

As  error = approx value -  exact value

As given

Annie estimates that the height of a bookcase is 78.25 in.

The actual height is 75.50 in.

approx value = 78.25 in.

actual value = 75.50 in.

error = 78 .25 - 75 .50

        = 2.75

put in the formula

Percentage\ error = \frac{2.75\times 100}{75.50}

Percentage\ error = \frac{27500}{7550}

Percentage error = 3.64 % (approx)

Therefore the Percentage error be 3.64 % (approx).

6 0
3 years ago
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Arada [10]
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6 0
3 years ago
Let T : V → W be a linear transformation from vector space V into vector space W.
wel

Explanation:

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7 0
3 years ago
HELPPP
alina1380 [7]
Ok, So:

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It Would Be 27
6 0
3 years ago
Read 2 more answers
PLEASSS HELPPPP
Lera25 [3.4K]

Answer:

-11 + 4

Step-by-step explanation:

When you subtract a negative the sign will  switch to plus, so it this case you would switch the - (-4) to a + 4 but you don't change the -11 at the front.

6 0
3 years ago
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