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2 years ago

6

I have the answer for x I just need to know how to get the answer for Y, please help, thanks.

1 answer:

Ad libitum [116K]2 years ago

4 0

You can use Soh Cah Toa to get your answer, in other words, sin cos tan. If you already have x, that means you probably used tan, which is adjacent and opposite. Now for y, you are trying to find the hypotenuse so you could use, sin or cos, for sin you would use the adjacent (x) and the hypotenuse (y) and for cos, you would use opposite (4) and the hypotenuse (y). This is all based on the angle 45.

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For every 3 hours she works, Alexia earns $20.40.

kirill [66]

3x = 20.40. Divide each side by 3.
x = 6.8
she earns $6.8 per hour

5 0

3 years ago

I need help with this question pls

schepotkina [342]

Answer:

307/500

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Normal Distribution. Cherry trees in a certain orchard have heights that are normally distributed with mu = 112 inches and sigma

Lubov Fominskaja [6]

Answer:

The probability that a randomly chosen tree is greater than 140 inches is 0.0228.

Step-by-step explanation:

Given : Cherry trees in a certain orchard have heights that are normally distributed with $\mu = 112$ inches and $\sigma = 14$ inches.

To find : What is the probability that a randomly chosen tree is greater than 140 inches?

Solution :

Mean - $\mu = 112$ inches

Standard deviation - $\sigma = 14$ inches

The z-score formula is given by, $Z=\frac{x-\mu}{\sigma}$

Now,

$P(X>140)=P(\frac{x-\mu}{\sigma}>\frac{140-\mu}{\sigma})$

$P(X>140)=P(Z>\frac{140-112}{14})$

$P(X>140)=P(Z>\frac{28}{14})$

$P(X>140)=P(Z>2)$

$P(X>140)=1-P(Z$

The Z-score value we get is from the Z-table,

$P(X>140)=1-0.9772$

$P(X>140)=0.0228$

Therefore, the probability that a randomly chosen tree is greater than 140 inches is 0.0228.

5 0

3 years ago

If kevin makes c toys in m minutes, how many toys can he make per hour

mina [271]

Answer:

$\frac{60c}{m}$

Step-by-step explanation:

We can use the unity rule to solve this problem.

Number of toys made in m minutes = c

Number of toys made in 1 minute = $\frac{c}{m}$

Number of toys made in 60 minutes = $\frac{c}{m} \times 60 = \frac{60c}{m}$

Since 60 minutes = 1 hours, we can write:

Number of toys made in 1 hour = $\frac{60c}{m}$

Therefore, we can say that Kevin makes $\frac{60c}{m}$ toys per an hour.

7 0

3 years ago

What is the value of 7x 2squared + 2x when x = 3?

mash [69]

Answer:

Given expression has the value 69

Step-by-step explanation:

Given equation is:

$=7x^2 + 2x$

Now we have to put x = 3

So the equation will become:

$=7(3)^2 + 2(3)$

By simplifying:

As $3^{2} = 9$

and 2*3 = 6

So the above equation will become:

$=7(9 ) + 6\\= 63 + 6\\= 69$

So the value of given expression is 69.

i hope it will help you!

6 0

3 years ago