Ask question

Ask question

All categories

2 years ago

10

Which statement is true about the given expression? A. The "11" in the second term is a constant. B. The "4" in the third term i

s a factor. C. The "3" in the first term is an exponent. D. The "2" in the second term is a coefficient.

2 answers:

lyudmila [28]2 years ago

7 0

Answer:

a

Step-by-step explanation:

Mazyrski [523]2 years ago

3 0

please provide expression. I have no idea.

You might be interested in

When an object is thrown upwards with a speed of 64 ft/sec, its height above the ground is given by the function h(t)=−16t2+64t

Svet_ta [14]

Answer:

The object will reach its highest point 0.5 seconds after it has been thrown.

Step-by-step explanation:

The object reaches its maximum height when velocity is equal to zero, the velocity is the derivative of function height. That is:

$v(t) = \frac{d}{dt}h(t)$ (1)

Where $v(t)$ is the velocity of the object at time $t$ , in feet per seconds.

If we know that $h(t) =-16\cdot t^{2}+64\cdot t$ and $v(t) = 0\,\frac{ft}{s}$ , then the time when object reaches its highest point is:

$v(t) = -32\cdot t+64$

$-32\cdot t + 64 = 0$

$t = 0.5\,s$

The object will reach its highest point 0.5 seconds after it has been thrown.

3 0

2 years ago

What is the slope?<br><br> A.) Undefined<br> B.) 0

SSSSS [86.1K]

Your answer is 0, because the equation for this is y=1. Only vertical lines can have an undefined slope because the x value never changes. Hope this helps.
: )

4 0

2 years ago

Read 2 more answers

If math were a weather, what type of weather would it be and why?

drek231 [11]

Answer: a thunderstorm

Step-by-step explanation:

B/c there is more than one way to do math but if you don’t do it a specific way at a certain time then it becomes a problem.

8 0

2 years ago

Enter an equation that can be used to solve this problem, where x represents the number of hours that Roberto had been traveling

nalin [4]

45mph x35 mph = 1 hour

6 0

3 years ago

A journal published a study of the lifestyles of visually impaired students. Using diaries, the students kept track of several v

Serga [27]

Answer:

a) $P(X$

b) $P(8 \leq X\leq 10) = 0.3640$

c) $x = 8.89 -0.842(2.11)=7.11$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Let X the random variable that represent interest on this case, and for this case we know the distribution for X is given by:

$X \sim N(\mu=8.89,\sigma=2.11)$

And let $\bar X$ represent the sample mean, the distribution for the sample mean is given by:

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

a. Find P(x < 6). P(x < 6) = (Round to four decimal places as needed.)

In order to find this probability we can use the z score given by this formula

$z=\frac{x-\mu}{\sigma}$

And if we use this we got this:

$P(X$

b. Find P(8 < x < 10) = (Round to four decimal places as needed.)

$P(8 \leq X\leq 10) = P(\frac{8-8.89}{2.11} \leq Z< \frac{10-8.89}{2.11})=P(-0.422 \leq Z\leq 0.526)=P(Z$

c. Find the value a for which P(x < a) = 0.2. (Round to two decimal places as needed.)

For this case we can use the definition of z score given by:

$z=\frac{x-\mu}{\sigma}$

First we need to find a z score that accumulates 0.2 of the area on the left tail, and the z score on this case is z=-0.842. and using this z score we can solve for x like this:

$-0.842=\frac{x-8.89}{2.11}$

And if we solve for x we got:

$x = 8.89 -0.842(2.11)=7.11$

And that would be the value required for this case.

6 0

3 years ago