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ehidna [41]
3 years ago
10

What is a unit rate math

Mathematics
1 answer:
Rus_ich [418]3 years ago
7 0

Answer:

A unit rate is the answer which you get when you divide one of the numbers by the other. This is how much one would be. Here is a video:

htt ps:  / /ww w.you tu be.co m/  wa tc h?v=  Z m0  KaIw -3

5k

Just remove the spaces in between and you should be alright.

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Crash testing is a highly expensive procedure to evaluate the ability of an automobile to withstand a serious accident. A simple
Veseljchak [2.6K]

Answer:

The 95% confidence interval is (-0.2451, 06912)

Step-by-step explanation:

From the question, we have;

The number of small cars in the sample of small cars, n₁ = 12

The number of small cars that were totaled, x = 8

The number of large cars in the sample of small cars, n₂ = 15

The number of large cars that were totaled, y = 5

Therefore, the proportion of small cars that were totaled, pX = x/n₁

∴ pX = 8/12 = 2/3

The proportion of large cars that were totaled, pY = y/n₁

∴ pY = 5/15 = 1/3

The 95% confidence interval for the difference pX - pY is given as follows;

pX-pY\pm z^{*}\sqrt{\dfrac{pX\left (1-pX  \right )}{n_{1}}+\dfrac{pY\left (1-pY  \right )}{n_{2}}}

\dfrac{2}{3} -\dfrac{1}{3} \pm 1.96 \times \sqrt{\dfrac{\dfrac{2}{3} \times \left (1-\dfrac{2}{3}   \right )}{12}+\dfrac{\dfrac{1}{3} \times \left (1-\dfrac{1}{3}   \right )}{15}}

Therefore, we have;

\therefore 95\% \  CI = \dfrac{1}{3} \pm 0.3578454

The 95% confidence interval, CI = (-0.2451, 06912)

6 0
2 years ago
Perform the indicated operation.<br> 22 6/11 ∙ 1 1/2
lutik1710 [3]

Answer:

Step-by-step explanation:

5 0
2 years ago
How can I solve the following system of equations: -4x + y= 6, -5x -y =21. I know I can cancel out but I don't know where or whe
matrenka [14]
-4x + y = 6
-5x - y = 21

add both of them
-9x = 27
x = -3

(-4*-3) + y = 6
-12 + y = 6
y = 18
7 0
3 years ago
19 3/4−4/9 no example
Jet001 [13]

Answer:

19 11/36

Step-by-step explanation:

19 3/4−4/9

Get a common denominator of 36

19    3/4 *9/9 = 19   27/36

4/9*4/4 = 16/36

19 27/36 - 16/36 = 19 11/36

4 0
3 years ago
PLEASE ANSWER 100POINTS+BRAINLEST PLEASE HELP NO DUMMY ANSWERS
makkiz [27]
The answer is on google no dumb stuff dummy
7 0
3 years ago
Read 2 more answers
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