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Bingel [31]
3 years ago
9

Plzzzzz help

Mathematics
1 answer:
sweet [91]3 years ago
3 0
Ans: A
Sub t=2 in the equation
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Help I have to turn these in fast I'll give brainliest
____ [38]

Answer:

<h3><u>Firs</u><u>t</u><u> </u><u>q</u><u>uestion</u></h3>

To find ? we use sine

sin ∅ = opposite / hypotenuse

From the question

The hypotenuse is 50

The opposite is 25

So we have

sin ? = 25 / 50

sin ? = 1/2

? = sin-¹ 1/2

<h2>? = 30°</h2>

<h3><u>Sec</u><u>ond</u><u> </u><u>q</u><u>uestion</u></h3>

To find ? we use tan

tan ∅ = opposite / adjacent

From the question

the opposite is 8

the adjacent is 33

So we have

tan ? = 8/33

? = tan-¹ 8/33

? = 13.62

<h3>? = 14° to the nearest degree</h3>

Hope this helps you

3 0
3 years ago
A quality control engineer at a potato chip company tests the bag filling machine by weighing bags of potato chips. Not every ba
Ahat [919]

Answer:

z=\frac{0.21 -0.15}{\sqrt{\frac{0.15(1-0.15)}{100}}}=1.68  

Step-by-step explanation:

Information provided

n=100 represent the random sample taken

X=21 represent the number of bags overfilled

\hat p=\frac{21}{100}=0.21 estimated proportion of overfilled bags

p_o=0.15 is the value that we want to test

z would represent the statistic

Hypothesis

We need to conduct a hypothesis in order to test if the true proportion of overfilled bags is higher than 0.15.:  

Null hypothesis:p =0.7  

Alternative hypothesis:p > 0.15  

The statistic for this case is:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

And replacing the info given we got:

z=\frac{0.21 -0.15}{\sqrt{\frac{0.15(1-0.15)}{100}}}=1.68  

5 0
3 years ago
So I'm not good with story problems and im trying to figure this one question out. How do I format it?​
sashaice [31]

Answer:   $76,000

<u>Step-by-step explanation:</u>

State Income Tax = Salary × Income Tax Rate

                   3040 = Salary × 0.04

              <u>   ÷ 0.04 </u>    <u>            ÷0.04 </u>

                76,000 = Salary

5 0
3 years ago
The sum of the digits of a two-digit number is 10. When the digits are reversed, the new number is 18 less than the original num
eimsori [14]
<h3>Answer:</h3>

64

<h3>Explanation:</h3>

6+4= 10

Then reverse the digits of 64, and you have 46

64-46= 18

3 0
3 years ago
Nick has 7.00. Bagels cost .75 each, and a small container if cream cheese costs 1.29. Write an inequality to find the numbers o
DENIUS [597]
.75x +1.29 = 7.00

x = the amount of bagels he wants.
6 0
2 years ago
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