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miss Akunina [59]
3 years ago
8

Please write your answer below !!!

Mathematics
1 answer:
Paladinen [302]3 years ago
6 0
A.) We know, sum of the complimentary angles is equal to 90.
So, Equation: 15 + x = 90

B.) Solving: 15 + x = 90
x = 90 - 15
x = 75

In short, Your Answer would be 75

Hope this helps!
You might be interested in
2 divided by what times what equals 7
g100num [7]

Answer:

<h2><u><em>2/7</em></u></h2>

Step-by-step explanation:

I answer for what I understand, the question is not clear.

2 divided by what times what equals 7

2 : x = 7

x = -2/-7

x = 2/7

-------------

check

2 : 2/7 = 7

2 * 7/2 = 7

7 = 7

the answer is good

5 0
2 years ago
Math question try your best do not guess
Juli2301 [7.4K]

Answer:

The answer would be 2,187

1). solution

3³÷3^(-4)

3³×3⁴. ( power sign changes when divide sign change into multiply)

2,187

5 0
3 years ago
Read 2 more answers
Jason spent half of his allowance going to the movies. He washed the family car and earned seven dollars. What is his weekly all
Delvig [45]
13-7=6
6 times 2 =12
his weekly allowance is 12
6 0
2 years ago
Read 2 more answers
A researcher wants to estimate the mean commute time of residents in Westchester County. The researcher samples 40 commuters and
Ksenya-84 [330]

Answer:

21.759

Step-by-step explanation:

Given that :

Mean (m) = 25

Standard deviation (s) = 12.5

Sample size (n) = 40

α = 90%

The confidence interval is obtained using the relation:

Mean ± Zcritical * s/sqrt(n)

Zcritical at 90% confidence interval = 1.64

25 ± 1.64 * (12.5/sqrt(40))

Lower boundary : 25 - 1.64(1.9764235) = 21.75866546

Upper boundary : 25 + 1.64(1.9764235) = 28.24133454

(21.759, 28.241)

Hence, lower bound of confidence interval is : 21.759

4 0
2 years ago
Please help me! I need this answered fast!
ArbitrLikvidat [17]

Answer:

Question 1: A

Question 2: C

Step-by-step explanation:

The answer to question 1 is A. I know this is correct because Max needs to earn 108 dollars for the headphones he wants so the amount of money he earns per hour which is 15, times the amount of hours he needs to work which is x has to be greater than 108. So, the inequality equation has to be 15x > 108 which is answer A.

The answer to question 2 is C. I know this is correct because Felicia has 2 sisters which make 3 sisters in total to pay for the gift. They all pay evenly, so the first part of the equation would be 3x. The cost for the gift is less than 80 dollars, so we write the inequality equation like 3x < 80 which is answer C.

7 0
3 years ago
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