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3 years ago

Help. help. help.no link pls.

Mathematics

1 answer:

kondaur [170]3 years ago

8 0

Answer:

x + 2, x ≠ -2

Step-by-step explanation:

Note that F(x) = x^2 + 4x + 4 factors into (x + 2)^2, and that we are dividing this by g(x) = x + 2. The quotient is x + 2, which in this problem has been named h(x).

The quotient (f/g)(x) is therefore x + 2 EXCEPT that this is not defined at x = -2, because the denominator, x + 2, will be zero there, undefined.

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What is 6 3/4 x 3/5 A) 54/20 B) 75/12 C) 81/20 D) 9/4

steposvetlana [31]

The answer you are looking for is C my friend

8 0

3 years ago

A toy manufacturer wants to know how many new toys children buy each year. A sample of 305 children was taken to study their pur

Harrizon [31]

Answer:

The 80% confidence interval for the mean number of toys purchased each year is between 7.5 and 7.7 toys.

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:

$\alpha = \frac{1 - 0.8}{2} = 0.1$

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

That is z with a pvalue of $1 - 0.1 = 0.9$ , so Z = 1.28.

Now, find the margin of error 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.

$M = 1.28\frac{1.5}{\sqrt{305}} = 0.1$

The lower end of the interval is the sample mean subtracted by M. So it is 7.6 - 0.1 = 7.5

The upper end of the interval is the sample mean added to M. So it is 7.6 + 0.1 = 7.7

The 80% confidence interval for the mean number of toys purchased each year is between 7.5 and 7.7 toys.

8 0

3 years ago

Pls help me solve this pls show how you got the answer

Rudiy27

Answer:

my answer is in this picture.

5 0

3 years ago

Can you help me solve this

DochEvi [55]

Answer:

private document file

6 0

3 years ago

Solve for x. Leave your answer in simplest radical form.

strojnjashka [21]

There are two Right angled triangles in the given figure, with two missing sides, let's name the other missing side be " y "

According to Pythagoras theorem,

$\boxed{ \large \boxed{h {}^{2} = {b}^{2} + p{}^{2} }}$

note :

p = perpendicular / opposite side
b = base / adjacent side
h = hypotenuse

let's solve for " y² " first ( square of other missing side )

$➢ \: \: {y}^{2} = {8}^{2} + 3 {}^{2}$

$➢ \: \: {y}^{2} = 64 + 9$

$➢ \: \: {y}^{2} = 73$

now let's solve for " x " , by using pythagorous theorem

$➢ \: \: {x}^{2} = {y}^{2} + {6}^{2}$

$➢ \: \: {x}^{2} = 73 + 36$

$➢ \: \:x {}^{2} = 109$

$➢ \: \: x = \sqrt{109}$

Approximate :

$➢ \: \: 10.44 \: \: units$

$\mathrm{✌TeeNForeveR✌}$

5 0

3 years ago

Help. help. help.no link pls. ​

Help. help. help.no link pls.