6c – 7 + d + 4 – 6d combine like terms

What is the vertex in the equation of the axis of symmetry of the graph of y=x^2-6x-7

Keith_Richards [23]

Answer:

98

Because ya he is js is k ska new aja ska ska

4 0

3 years ago

Find the volume of the following figure. Round your answer to the nearest whole

PilotLPTM [1.2K]

Answer:

210cm

Step-by-step explanation:

B=l•w

B=5•6

B=30

V=B•h

V=30•7

V=210

8 0

2 years ago

true or false If x represents a random variable with mean 114 and standard deviation 40, then the standard deviation of the samp

Goshia [24]

Answer:

$\mu = 114, \sigma = 40$

We also know that we select a sample size of n =100 and on this case since the sample size is higher than 30 we can apply the central limit theorem and the distribution for the sample mean would be given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

And the standard deviation for the sampling distribution would be:

$\sigma_{\bar X}= \frac{40}{\sqrt{100}}= 4$

So then the answer is TRUE

Step-by-step explanation:

Let X the random variable of interest and we know that the true mean and deviation for this case are given by:

$\mu = 114, \sigma = 40$

We also know that we select a sample size of n =100 and on this case since the sample size is higher than 30 we can apply the central limit theorem and the distribution for the sample mean would be given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

And the standard deviation for the sampling distribution would be:

$\sigma_{\bar X}= \frac{40}{\sqrt{100}}= 4$

So then the answer is TRUE

6 0

3 years ago

Need help with this question plz

Leto [7]

Y should definitely get that phonw I ah eggs same but it’s red

5 0

2 years ago

Find the area of each Triangle given the base<br>b and height be<br>1. B=3 h = 4

Lunna [17]

Answer:

The area of the triangle is 6 square units.

Step-by-step explanation:

The area of a triangle is given by base x height / 2. Based on the info we're given in the question:

$A= \frac{b \times h}{2}\\A= \frac{3 \times 4}{2}\\A=6$

6 0

3 years ago