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Zigmanuir [339]
2 years ago
13

If you jump 8 times in 20 sec how many jumps can you make in 45 seconds at this rate

Mathematics
1 answer:
11Alexandr11 [23.1K]2 years ago
4 0
20 jumps because 45/20 is 2.5 and 8 x 2.5 is 20.
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Standard normal curve between z=.42 and z=1.92<br> a= .6902<br> b= .3098<br> c= .1902<br> d= .8098
soldier1979 [14.2K]
The correct answer is Choice B: 0.3098.

To find the answer, you have to use a normal distribution table. Look up the percents for each z-score and subtract them to find the region between.

z = 1.92 the percent is 0.9726

z = 0.42 the percent is 0.6628

0.9726 - 0.6628 = 0.3098
4 0
3 years ago
I need HELP PLZZZZ THIS IS DUE AT 7:00
valkas [14]

Answer:

27.5

Step-by-step explanation:

1.5(5)+20=27.5

:) hope its  right :)

7 0
3 years ago
Read 2 more answers
What product have the same sign as ( -2 3/7 ) (-6/11) ?
motikmotik

Answer:

1. -7/8

2.-9/14

3. 9/14

4. 7/8

2. what is the product of -2/7 and -3/7?

1. -7/8

2.-6/49

3. 6/49

4. 7/8

How do the expressions 72÷ 9 and -72÷ (-9) compare when they are evaluated?

1. They have different values and are different signs.

2. They have different values but are the same sign.

3. They have the same value but are different signs.

4. They have the same value and the same sign.

Step-by-step explanation:

Multiplying fractions: multiply numerators and multiply denominators

1. 3/4 X -6/7 = -18/28 = -9/14

2. -2/7 X -3/7 = 6/49

3. 4 because 72/9 is 8.  -72/-9 is 8.  Two negatives makes a positive when multiplying and dividing.

7 0
3 years ago
2+1.25f=10-2.75f2+1.25f=10−2.75f solve for f pls
krek1111 [17]
The answer to your question would be 2.

(please give thanks if i am correct)
4 0
3 years ago
Kim buys a new shirt for $25.50. She has to pay 8% sales tax. How much tax will be paid?​
Ainat [17]
Tax she will pay would be $2.04
4 0
2 years ago
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