3 years ago

A B C D Help me out

Mathematics

1 answer:

aleksklad [387]3 years ago

6 0

Answer:

2x^2 + 3/2x -5

Step-by-step explanation:

f(x) = x/2 -2

g(x) = 2x^2 +x -3

f(x)+ g(x) = x/2 -2+ 2x^2 +x -3

Combine like terms

= 2x^2 + 3/2x -5

You might be interested in

how many 5 digit numbers can be formed using all the digits 1, 2, 3, 4, and 5, such that the number is odd and greater than 4000

stira [4]

Answer:

Step-by-step explanation:

4 0

2 years ago

Is 34,515 divisible by nine

babymother [125]

Yes and it would give you 3,835 divided by 9

8 0

3 years ago

Read 2 more answers

26. The two triangles below are similar. What<br> is the perimeter of triangle XYZ?

AveGali [126]

Answer:

Step-by-step explanation:

6 ÷ 15 = 0.4

X to Y = 20 × 0.4 = 8

Y to Z = 25 × 0.4 = 10

Perimeter: a + b + c

6 + 8 + 10 = 24

Even I am surprised by what I wrote. Hopefully, it is right and helps you ^-^ Please comment if you have any questions.

-Tay did this

4 0

3 years ago

8a^3-36a^2+54a-27-64p^3

rusak2 [61]

Answer:

8a^3-64p^3-36a^2+54a-27

Step-by-step explanation:

since it no common variable so it can not be further solved

3 0

3 years ago

Suppose speeds of vehicles traveling on a highway have an unknown distribution with mean 63 and standard deviation 4 miles per h

Mashutka [201]

Answer:

The standard deviation for the sample mean distribution=0.603

Step-by-step explanation:

We are given that

Mean, $\mu=63$

Standard deviation, $\sigma=4$

n=44

We have to find the standard deviation for the sample mean distribution using Central Limit Theorem for Means.

Standard deviation for the sample mean distribution

$\sigma_x=\frac{\sigma}{\sqrt{n}}$

Using the formula

$\sigma_x=\frac{4}{\sqrt{44}}$

$\sigma_x=\frac{4}{\sqrt{2\times 2\times 11}}$

$\sigma_x=\frac{4}{2\sqrt{11}}$

$\sigma_x=\frac{2}{\sqrt{11}}$

$\sigma_x=0.603$

Hence, the standard deviation for the sample mean distribution=0.603

6 0

3 years ago