Help please please please:((((

Mathematics

1 answer:

SpyIntel [72]3 years ago

7 0

There are no numbers on the graph, so we cannot tell for sure the value of f(3).

If the grid squares are each one unit, then the graph of f(x) appears to go through the grid point (3, -1). This means f(3) = -1.

Using this value in the expression for g(x), we have
.. g(3) = -4*f(3) +7
.. g(3) = -4*(-1) +7
.. = 4 +7
.. = 11

The value of g(3) is 11.

You might be interested in

Which one of these are convexs

garik1379 [7]

B is the answer it is the only othe shplape

4 0

3 years ago

If one batch needs 3/4 cups of oil. and she want to make 5 batches. how much would she need?

murzikaleks [220]

Answer:

3.75 cups of oil or 3 and 3/4 cups of oil

Step-by-step explanation:

Simple

1 batch=0.75 cups of oil(3/4)

5 Batch=? (Multiply by 5)

5 Batches=3.75 cups (or 3 3/4) of oil

5 0

3 years ago

Read 2 more answers

35. In a simple random sample of 25 high school students, the sample mean of the SAT scores was 1450, and the sample variance wa

Tatiana [17]

Answer:

$1450-2.0\frac{30}{\sqrt{25}}=1450-12$

$1450+2.0\frac{30}{\sqrt{25}}=1450+12$

And the best option would be:

c. 1450 +/- 12

Step-by-step explanation:

Information provided

$\bar X=1450$ represent the sample mean for the SAT scores

$\mu$ population mean (variable of interest)

$s^2 = 900$ represent the sample variance given

n=25 represent the sample size

Solution

The confidence interval for the true mean is given by :

$\bar X \pm z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$ (1)

The sample deviation would be $s=\sqrt{900}= 30$

The degrees of freedom are given by:

$df=n-1=2-25=24$

The Confidence is 0.954 or 95.4%, the value of $\alpha=0.046$ and $\alpha/2 =0.023$ , assuming that we can use the normal distribution in order to find the quantile the critical value would be $z_{\alpha/2} \approx 2.0$