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3 years ago

What is the measure of A?

Mathematics

2 answers:

Artyom0805 [142]3 years ago

7 0

The answer would be D. because all triangles are equal to 180 degrees. if u add 50+30 its 80 and then if u add 80 to a 100 you get 180. the sum of any triangle should equal to 180. feel free to ask any questions

to 180

inn [45]3 years ago

4 0

Answer:

The answer is 30%

Step-by-step explanation:

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What is 5x+2y=-49 if -9<= x <=-7?

Arlecino [84]

I’m not quite sure I understand but if your saying that -9 =x and -7 =y then the answer would be -59 so the equation wouldn’t be true I hoped I helped :)

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4 years ago

Rosario and Enrqiue are in the same mathematics

Paul [167]

Answer:Enrqiue's average was higher than Rosario's average by 3

Step-by-step explanation:

Rosario's average= sum of 78, 77, 64, 86, and 70/ no of scores= 375/5= 75

Enrique's average=sum of 90, 61, 79, 73, and 87/ no of scores = 390/5=78

78-75=3

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4 years ago

What is the value of x in the equation 3(2x + 8) = 0? Group of answer choices −8 −4 4 8 please hurry!

Dafna11 [192]

Answer:

-4

Step-by-step explanation:

3(2x+8) = 0

Distribute

6x + 24 = 0

24 = -6x + 0

24/-6 = -4

8 0

3 years ago

The level of the tide in a harbor changed from 9 1/4 ft to 4 1/2 ft above sea level over a period of 3 1/4 hr

kumpel [21]

Answer:

The answer is " $\bold{- \frac{19}{13} \ / hour}$ "

Step-by-step explanation:

Please find the complete question in the attached file.

Calculating the difference of $9 \frac{1}{4}\ and \ 4 \frac{1}{2}$ dividing the value by $3 \frac{1}{4}$

$\to 4 \frac{1}{2} - 9 \frac{1}{4}\\\\ \to \frac{9}{2} - \frac{37}{4}\\\\ \to \frac{18-37}{4} \\\\ \to -\frac{19}{4}\\\\\to -\frac{19}{4} \div \frac{13}{4}= -\frac{19}{4} \times \frac{4}{13} = -\frac{19}{13}\\$

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3 years ago

Which number can be used as a common denominator for the fractions 1/4 and 5/6? Check all that apply.

Juli2301 [7.4K]

You could either use 12 or 24.

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3 years ago