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2 years ago

Brittany walked 8,910 feet in 45 minutes. She walked at a constant rate. At what rate did Brittany walk in feet per minute?

Mathematics

2 answers:

nydimaria [60]2 years ago

6 0

198 feet
Answer because I got it right

Anton [14]2 years ago

3 0

Answer:

198 feet

Step-by-step explanation:

8,910 / 45 = 198

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Adult men have heights that a normally distributed with a mean of 69.5 inches and a standard deviation of 2.4 inches. Adult wome

Aliun [14]

Answer:

Step-by-step explanation:

From the information given:

For Adult Men

Mean $\mu$ = 69.5

Standard deviation $\sigma$ = 2.4

observed value X = 74

For Adult Women

Mean $\mu$ = 63.8

Standard deviation $\sigma$ = 2.6

observed value X = 70

Therefore ; the values for their z scores can be obtained in order to determine who is more unusually tall within his or her respective sex

For Adult Men :

$z = \dfrac{X- \mu}{\sigma}$

$z = \dfrac{74- 69.5}{2.4}$

$z = \dfrac{4.5}{2.4}$

z = 1.875

For Adult Women :

$z = \dfrac{X- \mu}{\sigma}$

$z = \dfrac{70- 63.8}{2.6}$

$z = \dfrac{6.2}{2.6}$

z = 2.3846

Thus; we can conclude that , the women is more unusually tall within his or her respective sex

5 0

3 years ago

PLEASE HELP I GIVE THANKS

drek231 [11]

A, C, And D

Could be these answers...

7 0

3 years ago

Can someone please help me with answering this

insens350 [35]

Answer:

? = 1 (assuming right-angled triangle)

Step-by-step explanation:

This is an application of Pythagoras' Theorem, but rearranged:

$a^{2} = c^{2} - b^{2}$

$\sqrt{10}^{2}$ is, of course, 10, so 10 - 9 = 1, and $\sqrt{1} = 1$ .

3 0

3 years ago

Please evaluate: (−2)^3 · (−2)^4<br> show your work

sammy [17]

Answer:

-128

Step-by-step explanation:

$(-2)^3 \cdot (-2)^4=$

$(-2\cdot -2\cdot -2) \cdot (-2\cdot -2\cdot -2\cdot -2)=$

$-8\cdot 16=$

$-128$

Hope this helps!

3 0

3 years ago

Read 2 more answers

Pls help me asap. will give brainlist

Likurg_2 [28]

By pythagorus theorum In triangle ADC

AD²=AB²-BD²

AD²=(6.2)²-(2.7)²

AD=5.5

Again in triangle ADC

AC²=AD²+BC²

AC²=(5.5)²-(2.5)²

AC²=30.25-6.25

AC=4.8 approx..

6 0

2 years ago