Ask question

Ask question

All categories

3 years ago

11

PLEASE HELP I AM BEGGING YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I WILL GIVE BRAINLIEST AND EXTRA POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

1 answer:

Karo-lina-s [1.5K]3 years ago

5 0

Answer:

-0.2k - 2.1

Step-by-step explanation:

You might be interested in

LAST QUESTION GUYS PLS HELP THIS IS A TEST

iragen [17]

Answer:

C

Step-by-step explanation:

Ax+by= C

Ax -Ax +By = C -Ax

By = C-Ax

By/B = C-Ax/B

y= C-Ax/B

4 0

3 years ago

A health club sold ten memberships in one week for total of $3000. If male memberships cost $300 and female memberships cost $30

Ket [755]

Answer:

Step-by-step explanation:

The reason you haven't gotten an answer to this is because in its current formatting, there is no answer. Here's what I mean:

The first equation is going to be concerning the NUMBER of memberships sold, where m is male and f is female. The total number of memberships was 10:

m + f = 10

Now for the money equation. The total amount of money made from that number of memberships was 3000, where male memberships cost $300 and so do the female memberships, giving us an equation of

300m + 300f = 3000

Go back to the first equation and solve for either m or f. I solved for m in terms of f:

m = 10 - f and sub that into the second equation for m to get:

300(10 - f) + 300f = 3000 and

3000 - 300f + 300f = 3000. Here is where you find the problem. The -300f and the 300f cancel each other out, leaving you with the fact that

3000 = 3000 which it does, but it doesn't give us any viable answer.

I would have to say that since we can't do math on this, that the most credible answer you'll find is that the same number of male and female memberships were sold because 5 male memberships cost $1500 (5 memberships at $300 a piece is $1500) and 5 female memberships also cost $1500.

1500 + 1500 = 3000

6 0

3 years ago

If f(x)=x^2-1 and g(x)=-2x-3, what is the domain of (fog)(x)?

Iteru [2.4K]

Answer:

The domain of (fog)(x) is $\begin{bmatrix}-8 , -1\end{bmatrix}$

Step-by-step explanation:

Given function as :

f(x) = x² - 1 And

g(x) = - 2x - 3

So, Function (fog)(x) = ( -2x - 3 )² - 1

Or, (fog)(x) = ( 4x² + 12x + 9) - 1

Or, (fog)(x) = 4x² + 12x + 8

Or, (fog)(x) = 4x² + 4x + 8x + 8

Or, (fog)(x) = 4x ( x + 1 ) + 8 ( x + 1 )

Or, (fog)(x) = ( 4x + 8 ) ( x + 1 )

∴ (fog)(x) lies between - 8 to - 1

Hence The domain of (fog)(x) is $\begin{bmatrix}-8 , -1\end{bmatrix}$ Answer

6 0

4 years ago

Read 2 more answers

In recent years the mean number of miles driven per year by residents of a particular state was 11,568. A researcher wishes to t

aleksandrvk [35]

Answer:

The degrees of freedom are given by:

$df =n-1= 62 -1=61$

And we want to find a critical value on the t distribution with 61 degrees of freedom who accumulates 0.025 of the area on each tail and the critical value would be $t_{\alpha/2}= \pm 2.00$

And the rejection region would be $|t_{calc}| >2.00$

Step-by-step explanation:

Data given and notation

$\bar X=10822$ represent the sample mean

$s=1741$ represent the sample standard deviation

$n=62$ sample size

$\mu_o =11568$ represent the value that we want to test

$\alpha=0.05$ represent the significance level for the hypothesis test.

z would represent the statistic (variable of interest)

$p_v$ represent the p value for the test (variable of interest)

State the null and alternative hypotheses.

We need to conduct a hypothesis in order to check if the true mean differs from 11568, the system of hypothesis would be:

Null hypothesis: $\mu =11568$

Alternative hypothesis: $\mu \neq 11568$

The degrees of freedom are given by:

$df =n-1= 62 -1=61$

And we want to find a critical value on the t distribution with 61 degrees of freedom who accumulates 0.025 of the area on each tail and the critical value would be $t_{\alpha/2}= \pm 2.00$

And the rejection region would be $|t_{calc}| >2.00$

8 0

3 years ago

Nick is going to the skating ring once in 12 days. Victoria

11111nata11111 [884]

Answer:

idek there is only half a question

Step-by-step explanation:

7 0

3 years ago