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siniylev [52]
4 years ago
15

Carlton is solving a linear equation using the steps shown.

Mathematics
2 answers:
Alja [10]4 years ago
6 0

Step-by-step explanation:

The next step is

12 = - 2x

12 / - 2 = x

-6 = x

Andrei [34K]4 years ago
5 0

Answer:

d i took the test

Step-by-step explanation:

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While only 5% of babies have learned to walk but the adage of 10 months, 75% have learned to walk by 13 months of age. If the ag
zheka24 [161]

Answer:

Mean is 12.13 months

Standard deviation is 1.29

Step-by-step explanation:

We need to use z-score here

Let the mean of the distribution be a while the standard deviation be b

Mathematically;

z-score = (x-mean)/SD

We can obtain the probability from the z-score

Now, for the 10th month

The z-score for a probability of P = 0.05(5%)

Can be obtained from the standard normal distribution table and that is;

-1.645

Hence;

-1.645 = (10 - a)/b

-1.645 b = 10 - a

a = 10 + 1.645b ••••••(i)

For the 13 month, we have a proportion of 75%

The z-score corresponding to P(0.75) is = 0.674 from standard normal distribution table

Hence;

0.674 = (13-a)/b

0.674b = 13 - a

a = 13 - 0.674b. •••••(ii)

Now equate both a;

10 + 1.645b = 13 - 0.674b

13-10 = 1.645 b+ 0.674b

3 = 2.319b

b = 3/2.319

b = 1.294

So the mean a will be

10 + 1.645b = 10 + 1.645(1.294) = 10 + 2.13

So mean is 12.13

7 0
4 years ago
determine (a) the volume and (b) the surface area of the three-dimensional figure. when appropriate, use pi key on your calculat
lawyer [7]

Answer:

Volume = 150 yd^3

Surface Area = 150 yd^2

Step-by-step explanation:

Going by the dimensions of the given three-dimensional figure, we can conclude that the figure is that of a cube. The height, length and width are equal.

Volume of a cube is given as a^3 , while surface area of a cube is given as 6a^2

Where, a = the side length = 5 yards

Volume = a^3 = 5^3

Volume = 150 yd^3

Surface Area = 6a^2 = 6(5)^2

Surface Area = 150 yd^2

3 0
4 years ago
7. Are the two lines parallel, perpendicular, or neither? Explain your answer. Show work needed to answer the
kiruha [24]

Answer:

The lines are perpendicular

Step-by-step explanation:

5 0
3 years ago
Which value cannot represent the probability of an event occurring?
Lostsunrise [7]
The answer for this is a
3 0
3 years ago
Read 2 more answers
A) simplify 5m-m-m+3m<br> B) simplify 3xnxpx6
zysi [14]

Answer:

a) =6m

b) =18np

Step-by-step explanation:

a)5m-m-m+3m=6m

b)3*6=18np

7 0
3 years ago
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