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Sav [38]
3 years ago
10

Can you help me please and thank you

Mathematics
2 answers:
natulia [17]3 years ago
7 0

Answer:

I believe the answers in the blank should be 4

Step-by-step explanation:

jeka943 years ago
3 0

Answer:

= (4 x 5) + (4 x 2)

Step-by-step explanation:

remember to multiply first, before doing the addition. in this case, multiply 4 by 5, then 4 by 2 to get your answer using distributive property. i always remember the distributive process because if you take off a few letters, it makes distribute. you basically distribute 4, you give each number (5 and 2) a 4 and multiply them. hope this made sense lol

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Please help with everything except four! thank you!!
Vlad [161]
1) L×W 12×12=144
2) 12+12+12+12=48
3) L×W×H 5×5×5= 125
5) B×h/2 12×9=108/2=54
4 0
3 years ago
Read 2 more answers
Pls help me
Lesechka [4]

Answer:

Step-by-step explanation:

when x=4

area=4²+14×4+c=16+56+c=72+c

8²=64

9²=81

72+c=81

c=81-72=9

area=81  units²

length of each side=√81=9 units

5 0
3 years ago
If (-3, y) lies on the graph of y = 3x, then y=<br> 01/27<br> 0-1<br> 0-27
AlladinOne [14]

Answer:

b

Step-by-step explanation:

4 0
3 years ago
Compute the exact interest on $5,870 at 12% if the money is borrowed from June to December of the same year.
Tomtit [17]

Answer:

The exact interest on $5,870 at 12% is $58.70.

Step-by-step explanation:

Given information:

Principal = $5870

Interest rate  = 12% = 0.12

Time = June-December = 7 months.

We know that

1 year = 12 months

1/12 year = 1 month

7/12 year = 7 month

Time = 7/12 year

Formula for simple interest:

I=P\times r\times t

where, P is principal, r is rate of interest and t is time in years.

Substitute P=5870, r=0.12 and t=7/12 in the above formula.

I=5870\times 0.12\times \frac{1}{12}

I=5870\times 0.01

I=58.70

Therefore the exact interest on $5,870 at 12% is $58.70.

7 0
3 years ago
A group of statistics students decided to conduct a survey at their university to estimate the average (mean) amount of time stu
shusha [124]

Answer:

C. [21.80, 22.80]

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.025 = 0.975, so z = 1.96

Now, find M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.96\frac{6}{\sqrt{554}} = 0.5

The lower end of the interval is the sample mean subtracted by M. So it is 22.3 - 0.5 = 21.8 hours.

The upper end of the interval is the sample mean added to M. So it is 22.3 + 0.5 = 22.8 hours

So the correct answer is:

C. [21.80, 22.80]

6 0
3 years ago
Read 2 more answers
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