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Damm [24]
3 years ago
14

45.5 meters in 13 seconds show work

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
7 0
I am going to assume that you are looking for the speed of the object. So, knowing that the formula for speed is distance divided by time, we have the expression: 45.5/13. This would simplify to be 3.5 meters per second, or m/s. m/s also happens to be the "Scientific unit for speed!" Just a fun fact! If this answer was not clear, please feel free to ask! Happy home-working!
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Find the measure of the angle indicated.
Sergio [31]

Answer:

135. 147+x=180, x=33, 33+97=130, 130+50=180, 90-50=40 40+95=135 the answer is 135 because that angle equals the sum of the other two angles in the triangle or 180 minus the angle right next to it.

7 0
3 years ago
Heights for women are bell-shaped with a mean of 65 inches and standard deviation of 2.5 inches. If a random sample of 16 women
loris [4]

Answer:

μ= 65 inches; σ= 0.625 inch

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed(bell-shaped) random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this problem, we have that:

\mu = 65, \sigma = 2.5

By the central limit theorem, the sample of 16 will have:

\mu = 65, \sigma = \frac{2.5}{\sqrt{16}} = 0.625

So the correct answer is:

μ= 65 inches; σ= 0.625 inch

8 0
3 years ago
Slove these one step equation for the variable listed: Show your work
3241004551 [841]

1. 7=k

2. 21+w=36

-21 -21

----------------------

w=15

3. -5 =G+3

-3 -3

---------------------

-8=G

4. 2b/2=12/2

b=6

5. 35/5=5R/5

7= R

6. Q/2 (2) = 6 (2)

Q=12

5 0
3 years ago
Read 2 more answers
Eleven more than five times a number is equal to the difference between −38 and twice the number. Find the number.
Phantasy [73]

Answer:

x = -7

Step-by-step explanation:

Eleven more than five times a number is equal to the difference between −38 and twice the number.

let x represent the number.

11 + 5x = -38 - 2x

7x +11 = -38.............add 2x to both sides

7x = -49................... subtract 11 from both sides

x = -7........................divide both sides by 7

4 0
3 years ago
Y=-4x unit rate/constant/slope<br><br>8TH GRADE
Solnce55 [7]

9514 1404 393

Answer:

  -4

Step-by-step explanation:

In a linear equation, the terms "unit rate", "rate of change", "constant of proportionality", and "slope" all refer to the coefficient of x (the independent variable).

Here, the coefficient of x is -4.

The slope is -4.

_____

<em>Additional comment</em>

Strictly speaking the "constant of proportionality" only refers to the x-coefficient (k) when the equation is of the form ...

  y = kx . . . . . with no added constant

"Slope", "unit rate", and so on, can also refer to the x-coefficient (m) when the equation has a non-zero y-intercept (b):

  y = mx + b

4 0
3 years ago
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