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3 years ago

Plzzz help I will give you 25 points

Mathematics

2 answers:

LuckyWell [14K]3 years ago

5 0

Pretty sure the answer is 77

Marizza181 [45]3 years ago

3 0

answer is 77

8(9) + 5
72 + 5
77

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Help me lol !! will give brainleist

katovenus [111]

Answer:

Step-by-step explanation:

Since, Sum of triangle is equal to 180°

180 = 2x + 50 + 3x - 10

180 = 5x + 40

180 - 40 = 5x

140 = 5x

140/5 = x

28 = x

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3 years ago

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Use the quadratic formula to find both solutions to the quadratic equation given below. 2x^2+3x-5=0

Alisiya [41]

Answer:

x=1 and x= -2.5

Step-by-step explanation:

✯Hello✯

The quadratic formula is x=-b+-(sqrt)b^2-4ac/2a

A = 2

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3 years ago

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DiKsa [7]

<span>To find the confidence interval, add and subtract the margin of error from the mean. With mean 18.7 and margin of error 5.9, you have 95% confidence the answer is between 12.8 and 24.6.</span>

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3 years ago

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NEED HELP ASAP !! WILL MARK BRAINLEAST<br> SHOW WORK TOO !!!

irinina [24]

Step-by-step explanation:

$(1 + \cos(x) )(1 - \cos(x) )$

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$- 1$

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2 years ago

320 is decreased to 304

jeka57 [31]

Simple..

320-304
= 116

Your answer is 116

Happy Studying ^=^

8 0

3 years ago