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2 years ago

HELP QUICK!! PLEASE HELP!!! PLEASE PLEASE

Mathematics

1 answer:

weqwewe [10]2 years ago

8 0

Answer:

A.) Y= 8
B.) X= 9

Step-by-step explanation:

I noticed that the equation is x4 because 4x4= 16 and 5x4= 20.
So, I multiplied 4x2 to get 8 and divided 36/4 to get 9.

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What is the area of the following circle?

irina1246 [14]

Could you show the circle so we can solve this? we can’t solve it if you don’t show the area of the circle.

6 0

3 years ago

Read 2 more answers

Plissssss hlepppp me

stealth61 [152]

Answer:

a. m/6

b. k-9 (don't get confused with k less than nine)

c. 2x

d. 2x+4

e. n/7

f. (a+b)/4

<em>~Happy Holidays~</em> :)

4 0

4 years ago

Read 2 more answers

For brainliest answer this ASAP

krok68 [10]

Answer:

The hypotenuse of a right triangle is 4m longer than the shorter leg and 2m longer than the longer leg. What are the lengths of the sides?

Just for variety, consider the hypotenuse = h, the short leg h-4 and the long leg h-2.

c^2 = a^2 + b^2; so h^2 = (h-4)^2 + (h-2)^2; h^2 = h^2 - 8h + 16 +h^2 -4h +4;

h^2 -12h +20 = 0 factors to (h - 10)(h - 2) = 0 so h = 2 or h = 10

Since (h - 2) = (2 - 2) = 0 and a triangle cannot have a side of zero length, 10 is the length of the hypotenuse.

h^2 = (h-4)^2 + (h-2); 10^2 = (10-4)^2 + (10-2); (10)^2 = (6)^2 + (8)

The hypotenuse is 10 cm, short leg 6 cm and long leg 8 cm.

5 0

3 years ago

Please help, will Mark brainliest if correct.

pochemuha

The answer is: w || t

4 0

3 years ago

The 200 meter race times at a state track meet are normally distributed with a mean of 13.56 seconds and a standard deviation of

storchak [24]

The approximate probability that a runner chosen at random will have a 200 meter time less than 13.5 seconds is 0.4880 ⇒ A

Step-by-step explanation:

To find the probability of a random variable X which has a normal distribution do that

If X < b, find the z-score using the formula z = (b - μ)/σ, where μ is the mean and σ is the standard deviation
Use the normal distribution table of z to find the corresponding area to the left of z-score

∵ The 200 meter race times at a state track meet are normally

distributed with mean of 13.56 seconds and a standard deviation

of 2.24 seconds

∴ μ = 13.56

∵ σ = 2.24

- We need to find the probability that a runner chosen at random

will have a 200 meter time less than 13.5 seconds

∵ X < 13.5

∴ b = 13.5

- Find z-score

∵ $z=\frac{13.5-13.56}{2.24}=-0.02679$

- Use the normal distribution table to find the area corresponding to z

∵ The corresponding area of z ≅ -0.03 is 0.4880

∴ P(x < 13.5) = 0.4880

The approximate probability that a runner chosen at random will have a 200 meter time less than 13.5 seconds is 0.4880

Learn more:

You can learn more about the probability in brainly.com/question/4625002

#LearnwithBrainly

5 0

4 years ago