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nasty-shy [4]
3 years ago
5

Examine the diagram. Triangle A, B, C. Angle A is (2 x + 7) degrees, angle B is (4 x minus 10) degrees, and angle C is (7 x minu

s 25) degrees. Complete the statement by typing the letter of the angle. mAngle = 54º

Mathematics
2 answers:
Sphinxa [80]3 years ago
6 0

Answer:

Step-by-step explanation:

Sum of the angles = 180°

(2x+7) + (4x-10) + (7x-25) = 180

13x - 28 = 180

13x = 20

x = 16

Angle B = 4x -10 = 54°

mr Goodwill [35]3 years ago
3 0

Answer:

B

Step-by-step explanation:

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Answer:

42 cakes

Step-by-step explanation:

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2 years ago
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Answer:

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4 0
3 years ago
If a=2b^3 and b= -1/2c ^-2,express a in terms of c.
ElenaW [278]

Answer:

Part 1) a=-\frac{1}{4c^6}

Part 2) a=-\frac{1}{4c^{-6}}

Step-by-step explanation:

Part 1) we have

a=2b^{3} ----> equation A

b=-\frac{1}{2}c^{-2} ----> equation B

substitute equation B in equation A

a=2(-\frac{1}{2}c^{-2})^{3}

Applying property of exponents

(x^{m})^{n}=x^{m*n}

x^{-m} =\frac{1}{x^{m}}

a=2(-\frac{1}{2}c^{-2})^{3}=2(-\frac{1}{2})^3(c^{-2})^{3}=2(-\frac{1}{8})(c^{-6})=-\frac{1}{4c^6}

therefore

a=-\frac{1}{4c^6}

Part 2) we have

a=2b^{3} ----> equation A

b=-\frac{1}{2c^{-2}}=-\frac{c^{2}}{2} ----> equation B

substitute equation B in equation A

a=2(-\frac{c^{2}}{2})^{3}

Applying property of exponents

(x^{m})^{n}=x^{m*n}

x^{-m} =\frac{1}{x^{m}}

a=2(-\frac{c^{2}}{2})^{3}=2(-\frac{c^{6}}{8})

simplify

a=-\frac{c^{6}}{4}

therefore

a=-\frac{1}{4c^{-6}}

6 0
3 years ago
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--------------------------
Answer: 189.97 in²
--------------------------
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How much vanilla extract will be needed to make 2 dozen cookies? Show your work.
frozen [14]

Answer: the answer is 2 teaspoons of vanilla extract.

hope this helped

7 0
3 years ago
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