3 years ago

Please hurry i need this fast

Mathematics

1 answer:

damaskus [11]3 years ago

5 0

Answer:

B!!! 9!!!

Step-by-step explanation:

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Help also please explain thank you

Ne4ueva [31]

10 yards. The amount of yards is 1 third the amount of feet so you just divide 30 by 3 to get the amount of yards

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2 years ago

The weight of people in a small town in missouri is known to be normally distributed with a mean of 188 pounds and a standard de

Radda [10]

29=0.29 0.29*188=54.52 i think this is right but i may be wrong

5 0

2 years ago

Skylar Sutherland earns a salary of $80,000 per year. How much is Skylar paid per month? *

Nataliya [291]

Answer:

6,666$

Step-by-step explanation:

Because there are 12 months in a year u just have to divide 80,000 by 12.

Got chu :)

7 0

3 years ago

Evaluate the following double integral where a = 2y

Keith_Richards [23]

Change the order of integration.

$\displaystyle \int_0^1 \int_{2y}^2 \cos(x^2) \, dx \, dy = \int_0^2 \int_0^{x/2} \cos(x^2) \, dy \, dx \\\\ ~~~~~~~~ = \int_0^2 \cos(x^2) y \bigg|_{y=0}^{y=x/2} \, dx \\\\ ~~~~~~~~ = \frac12 \int_0^2 x \cos(x^2) \, dx$

Substitute $u=x^2$ and $du=2x\,dx$ .

$\displaystyle \frac12 \int_0^2 x \cos(x^2) \, dx = \frac14 \int_0^4 \cos(u) \, du = \frac14 \sin(u) \bigg|_{u=0}^{u=4} = \boxed{\frac{\sin(4)}4}$

4 0

7 months ago

Y=-3x+5<br> 5x-4y=-3<br> pls help

salantis [7]

Hello!

$\large\boxed{x = 1, y = 2}$

We can solve this system using substitution.

Since y = -3x + 5, we can substitute this into the following equation:

5x - 4(-3x + 5) = -3

Simplify:

5x - 4(-3x) - 4(5) = -3

5x + 12x - 20 = -3

Combine like terms:

17x - 20 = -3

Add 20 to both sides:

17x = 17

x = 1

Substitute to find y:

y = -3(1) + 5

y = -3 + 5

y = 2

Solution: (1, 2)

7 0

2 years ago

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