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sergiy2304 [10]
3 years ago
11

Find the mean. Z-score = -1.4 Standard Deviation: 7 x = 20

Mathematics
1 answer:
Umnica [9.8K]3 years ago
8 0

Answer:

9.6

Step-by-step explanation:

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Plz help me!!with this!!
ikadub [295]
 the surface area of that rectangular prism is 247.5.

7 0
3 years ago
Steve works as a football referee for 10 hours a week, and as a bus driver for 30 hours per week.if both jobs pay $21 per hour,h
arsen [322]

Answer:

$840

Step-by-step explanation:

First, add 30 to 10.

Then, multiply your answer (40) by 21.

Finally, you get your final answer of $840.

6 0
2 years ago
A bag contains 10 marbles:
Len [333]
Total number of marble = 10
3green
2red
5 blue
Probability that the first marble is red = 2/10

Probability that the second is blue = 5/9(a reduction in the total number of marbles, because after the first marble was picked it wasn't replaced)

Probability of 1st and 2nd being red and blue respectively = 2/10 × 5/9
=1/9....

Hope this helped...?

6 0
3 years ago
Tory and her friend Terrence ride their bikes to school each day. On one particular day, Tory started out 5 minutes before Terre
lys-0071 [83]

Answer:

4:30 minutes im thinking

Step-by-step explanation:

4 0
3 years ago
Inequality<br><br> Show your step by step solution to this.<br><br> 5-2x&gt;17
bonufazy [111]

<u><em>Answer: x<-6 *The answer should be the negative sign.*</em></u>

Step-by-step explanation:

subtraction property of equality is subtracting the same number from both sides of an equation does not change the equation.

subtract 5 both sides of an equation.

5-2x-5>17-5

simplify.

-2x>12

multiply by -1 both sides of an equation.

(-2x)(-1)<12(-1)

simplify.

2x<-12

divide by 2 both sides of an equation.

2x/2<-12/2

-12/2=-6

12/2=6

6*2=12

12/6=2

x<-6

Hope this helps!

Thanks!

Have a great day!

3 0
3 years ago
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