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KonstantinChe [14]

2 years ago

9

Find the measure of the missing angle of a triangle, if two of its angles are 75 degree and 65 degree respectively. please show

work

1 answer:

kirill115 [55]2 years ago

6 0

The sum of the angles in a triangle is 180°. That is ...
75° +65° +(missing angle) = 180°
(missing angle) = 180° -75° -65°
(missing angle) = 40°

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liberstina [14]

Answer:

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2 years ago

Write the expression using a single exponent. (-3)^9 (-3)^4

Jet001 [13]

Answer:

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Step-by-step explanation:

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2 years ago

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PLZ HELP SCALE FACTOR TRIANGLE<br><br> A. 10.5 cm<br> B. 31.5 cm<br> C. 63 cm<br> D. 189 cm

Anarel [89]

If two similar triangles have sides in the ratio a : b, then their areas are in the ratio a² : b².

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$54:18=\dfrac{54}{18}=3:1$

Area of the smaler triangle = x

Area of the larger triangle = 567 cm²

Therefore we have the equation:

$567:x=3^2:1^2\\\\\dfrac{567}{x}=\dfrac{9}{1}\qquad|\text{cross multiply}\\\\9x=567\qquad|\text{divide both sides by 9}\\\\x=63$

<h3>Answer: C. 63 cm²</h3>

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2 years ago

For a school fund-raiser, 10 students sold a total of 90 boxes of cookies. Which of the following can be calculated from this in

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Answer: what of the following

Step-by-step explanation:

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2 years ago

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Ms. Carter has 30 boxes of books. Half of the boxes have 25 books and the other half have 50 books. How many books does she have

Nikitich [7]

15 x 25 = 375
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She has 1,125 books.

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3 years ago

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