3 years ago

a guy is washing 32 feet off the ground. he positions the ladder at an angle of 67° with the ground. how tall is the ladder

Mathematics

1 answer:

irina [24]3 years ago

6 0

Answer:

34.76 feet

Step-by-step explanation:

trig

SOH CAH TOA

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Guys help me with this question.

Vladimir79 [104]

100/-24 = -4 :)))))))

8 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

Select all of the statements that are valid based on the survey results.

Anika [276]

Answer:

all except the last one

Step-by-step explanation:

4 0

2 years ago

Product of squre of x and cube of y

julsineya [31]

Answer:

x²y³

Step-by-step explanation:

(x²) (y³) = x²y³

Hope it helps!

Have a nice day:)

6 0

1 year ago

Read 2 more answers

Is this the correct answer?

NeTakaya

30kx - 6kx = 8

24kx = 8 /(÷8)

3kx = 1

x = 1/3k

4 0

3 years ago