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3 years ago

What is the value of x?

Mathematics

1 answer:

STatiana [176]3 years ago

3 0

I thought it was 5 because the 55 degrees given is equal to the angle above it. If you look, there are 4, 90 degree angles so the 8x-5 has to equal 35 to make 90 but idk

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Help I’ll give Brainly

Temka [501]

Answer:

probability = area of shaded region / total area

P = π (y²-x²) /πy²

P = y²-x²/y²

Option D is correct ...

mark me as brainliest ❤️

3 0

3 years ago

HELP IVE NEVER SEEN THIS BEFORE! WILL BE MARKED BRAINLIEST

Mariulka [41]

42!!! Its the answer to life so therefore the answer to everything

4 0

3 years ago

Which equation describes this line?

kvasek [131]

Answer:

I think it's c but I'm not 100 percent sure

7 0

3 years ago

Read 2 more answers

A test score of 48.4 on a test having a mean of 66 and a standard deviation of 11. Find the z-score corresponding to the given

Mariulka [41]

Answer:

A. -1.6; not significant

Step-by-step explanation:

The z-score of a data set that is normally distributed with a mean of $\bar x$ and a standard deviation of $\sigma$ , is given by:

$z=\frac{x-\bar x}{\sigma}$ .

From the question, the test score is: $x=48.4$ , the mean is $\bar x=66$ , and the standard deviation is $\sigma =11$ .

We just have to plug these values into the above formula to obtain:

$z=\frac{48.4-66}{11}$ .

This simplifies to: $z=\frac{-17.6}{11}$ .

$z=-1.6$ .

We can see that the z-score falls within two standard deviations of the mean.

Since $-2\le-1.6\le2$ the value is not significant.

The correct answer is A. -1.6; not significant

3 0

3 years ago

Lucy used 3 gal of paint to cover 900 ft. She needs to cover a total of 1,100 ft?.

insens350 [35]

Step-by-step explanation:

3 gal = 900 ft

... gal = 1100 ft

So, each gal is used for cover 300 ft,

Then,

$\sf \frac{1100}{900} \times 3 = \frac{11}{3} = \boxed{ \bold{ \red{3 \frac{2}{3} \: gal}}}$

We need <u>3 2/3 gal</u> to cover 1100 ft.

Hope it helps!

7 0

3 years ago