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3 years ago

Number 2 I need help on

Mathematics

1 answer:

KATRIN_1 [288]3 years ago

7 0

Remember this:
Hey didle didle
the median is the middle
you add then divide for the mean
the mode is the most common one that you'll see
and the range is the difference between

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Find Lateral Surface area

fiasKO [112]

Answer:

To find the lateral surface area, we will find half of the perimeter of the base and multiply it by the slant height of the side triangles. Each triangle has a slant height. The slant height is the height of each triangle, not the height of the pyramid.

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

The function LaTeX: f\left(x\right)=-x^2+4f ( x ) = − x 2 + 4 defined on the interval LaTeX: -8\le x\le8− 8 ≤ x ≤ 8 is increasin

enyata [817]

Given:

The function is

$f(x)=-x^2+4$

It defined on the interval -8 ≤ x ≤ 8.

To find:

The intervals on which the function is increasing and the interval on which decreasing.

Step-by-step explanation:

We have,

$f(x)=-x^2+4$

Differentiate with respect to x.

$f'(x)=-(2x)+(0)$

$f'(x)=-2x$

For turning point f'(x)=0.

$-2x=0$

$x=0$

Now, 0 divides the interval -8 ≤ x ≤ 8 in two parts [-8,0] and [0,8]

For interval [-8,0], f'(x)>0, it means increasing.

For interval [0,8], f'(x)<0, it means decreasing.

Therefore, the function is increasing on the interval [-8,0] and decreasing on the interval [0,8].

7 0

3 years ago

(PLEASE HELP!!!)<br><br> What is g(5) equal to?<br><br> G(t)= -21+3t<br><br> G(5)= ____

Elina [12.6K]

The answer should be g=3t-21/t

6 0

3 years ago

Read 2 more answers

Lucy works as a tutor for $7 an hour and as a waitress for $12 an hour. This month, she worked a combined total of 86 hours at h

KonstantinChe [14]

<h3>Answer: 7t + 12(86-t)</h3>

==========================================================

Explanation:

t = number of hours she worked as a tutor
86-t = number of hours she worked as a waitress

The two expressions mentioned add to 86, to indicate the total number of hours for both jobs combined.

7t = amount earned as a tutor
12(86-t) = amount earned as a waitress

We multiply the number of hours by the wage per hour to get the amount earned per job.

Lastly, we add those two subtotals to get the grand total earned

7t + 12(86-t)

Optionally you can distribute the 12 through and combine like terms. I'll leave it like this because I think it's more descriptive to show the two amounts earned from each job.

If you wanted to simplify 7t+12(86-t), then you would get 1032-5t or -5t+1032

6 0

2 years ago

9/14 / 5/12 simplify this fraction

nignag [31]

I'm assuming those are two fractions being divided. I just write it out. It looks scary but it's really not. Just do this:
~=this is my dividing sign when not in fraction form cause I don't have an actual sign here.

9/14 ~ 5/12

Then you KCF(Keep, Change, Flip). Keep the first number the same. Change the dividing sign to multiplication. Then flip the last fraction so that it is now 12/5.
The problem now stands as:

9/14 • 12/5

Simplify and the you have your final answer. I recommend looking up the keep change flip video by flocabulary in case you haven't checked it out yet. It really helped me learn this method. Hope this helped!!

-Liananna

8 0

4 years ago