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2 years ago

Please help me lol I need it picture should be below

Mathematics

1 answer:

musickatia [10]2 years ago

4 0

9514 1404 393

Answer:

m∠Y = 40°

Step-by-step explanation:

The sum of complementary angles is 90°. If we let s and y represent m∠S and m∠Y, respectively, the angle measures in degrees satisfy ...

s + y = 90

(4y -110) +y = 90 . . . . . . . . substitute for s

5y = 200 . . . . . . . . . add 110

y = 40 . . . . . . . divide by 5

The measure of angle Y is 40°.

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Add. –32.7+(–0.2) a. –32.9 b. –32.5 c. 32.5 d. 32.9

yKpoI14uk [10]

The answer to your question is -32.9

5 0

3 years ago

Make COS the subject of the formula

docker41 [41]

c^2 = a^2 + b^2 - 2(ab)(cos C)

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2(ab)(cos C) = a^2 + b^2 - c^2

cos C = (a^2 + b^2 - c^2) / 2ab - Answer choice E

Hope this helps! :)

6 0

3 years ago

A safety officer wants to prove that μ = the average speed of cars driven by a school is less than 25 mph. Suppose that a random

Akimi4 [234]

Answer:

$t=\frac{24-25}{\frac{2.2}{\sqrt{14}}}=-1.70$

The degrees of freedom are given by:

$df=n-1=14-1=13$

The p value for this case would be given by:

$p_v =P(t_{(13)}$

Step-by-step explanation:

Information given

$\bar X=24$ represent the mean height for the sample

$s=2.2$ represent the sample standard deviation

$n=14$ sample size

$\mu_o =25$ represent the value that we want to test

t would represent the statistic

$p_v$ represent the p value for the test

Hypothesis to verify

We want to cehck if the true mean is lees than 25 mph, the system of hypothesis would be:

Null hypothesis: $\mu \geq 25$

Alternative hypothesis: $\mu < 25$

The statistic would be given by:

$t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}$ (1)

Replacing the info given we got:

$t=\frac{24-25}{\frac{2.2}{\sqrt{14}}}=-1.70$

The degrees of freedom are given by:

$df=n-1=14-1=13$

The p value for this case would be given by:

$p_v =P(t_{(13)}$

8 0

2 years ago

MARKING BRAINLIEST PLZ HURRY 1 1/4 + ? = 0

Rzqust [24]

Answer:

? = -1 1/4 (Negetive one and one fourth)

Step-by-step explanation:

Use this calculator to solve those difficult Algebra problems!

https://www.mathpapa.com/algebra-calculator.html

8 0

2 years ago

PLEASE HELP!!!

ki77a [65]

Part A:
I have attached the graph of this system of inequalities.

Part B:
Plug in (8,10) into both equations

10 > 3(8) + 10
10 > 24 + 10
10 > 34

This is false!

10 < (-3/4)(8) - 1
10 < (-3)(2) - 1
10 < -6 - 1
10 < -7

This is also false!

So, (8,10) is not included in the solution area for the system.

3 0

3 years ago

Please help me lol I need it picture should be below ​

Please help me lol I need it picture should be below