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Kitty [74]
3 years ago
5

PLEASE HELP I WILL GIVE BRAINALIST

Mathematics
1 answer:
OleMash [197]3 years ago
3 0

Answer:

D

Step-by-step explanation:

If you multiply the feet with second you will get their speed

For example:

Moises: 15÷3 = 5 feet per sec

Xavier: 15÷2 = 7,5 feet per sec

-Then, you just need to compare them with the answer, and we have the last answer is D

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Johnny measured the wading pool at the Belleville Community Center and calculated that it has a circumference of 6.28 meters. Wh
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your mom

Step-by-step explanation:

im on top she is on the bottom <3

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2 years ago
On the unit circle, which of the following angles has the terminal point coordinates (√2/2,-√2/2)
aleksandr82 [10.1K]

Answer:

Option B

Step-by-step explanation:

A unit circle means radius of the circle = 1 unit

Let a terminal point on the circle is (x, y) and angle between the point P and x-axis is θ.

Center of the circle is origin (0, 0).

Therefore, ordered pair representing the terminal point will be (OP×Cosθ, OP×Sinθ) = (\frac{\sqrt{2} }{2},-\frac{\sqrt{2} }{2})

OP.Cosθ = 1×Cosθ = \frac{1}{\sqrt{2}}

Cosθ = \frac{1}{\sqrt{2}}

θ = \frac{\pi }{4}+2\pi n,  \frac{7\pi }{4}+2\pi n where n = integers

Similarly, OP×Sinθ = 1×Sinθ = -\frac{1}{\sqrt{2}}

Sinθ = -\frac{1}{\sqrt{2} }

θ = \frac{5\pi }{4}+2\pi n,  \frac{7\pi }{4}+2\pi n where n = integer

Common value of θ will be, θ = \frac{7\pi }{4}

Option B will be the answer.

5 0
3 years ago
Subtitute 2x+y=7 and 3x-y=8
iogann1982 [59]

Answer:

x = 3 , y = 1

Step-by-step explanation:

2x + y = 7

3x + y = 8

solution

2x + y = 7-----------(1)

3x - y = 8------------(2)

from equation 1

2x + y = 7

y = 7 - 2x-------------(3)

substitute equation 3 into equation 2

3x - y = 8

3x - (7 - 2x) = 8

3x - 7 + 2x = 8

3x + 2x = 8 + 7

5x = 15

divide through by the coefficient of x

5x/5 = 15/5

x = 3

to find y

substitute x into equation 1

2x + y = 7

2(3) + y = 7

6 + y = 7

y = 7 - 6

y = 1

8 0
3 years ago
A machine that produces a major part for an airplane engine is monitored closely. In the past, 12% of the parts produced would b
melamori03 [73]

Answer:

Wanna have sex?

Step-by-step explanation:

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2 years ago
Imagine a couple who is ready to start a family. They plan to have exactly four children. Assuming no multiple births (twins, tr
Lostsunrise [7]

Answer:

4 different ways

Step-by-step explanation:

Total number of children = 4

Distribution of the 4 children :

Number of boys = 3 ; Number of girls = 1

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Possible combinations :

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Having exactly 3 boys and 1 girl

Hence, of any of the 4 four total children, 3 must be boys and 1 girl ;

7 0
3 years ago
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