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olga55 [171]
3 years ago
7

If h(x)=x-7 and g(x)=x^2, witch expresión is equivalent to(g*h)(5)?

Mathematics
1 answer:
Firdavs [7]3 years ago
8 0

Answer: 4

Step-by-step explanation:

(g*h)(5) = 4

Firstly, h(5) = 5 - 7 = -2

Then, evaluate g(-2) = (-2)^2 = 4

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Use the balanced scale to find the conversion factor that can be used to convert the number of blocks to the weight of the block
77julia77 [94]

Answer:

x = 2 1/4 or 2.25

Step-by-step explanation:

to start we can make an equation

9lbs = 4x

divide by 4

9/4 = x

x = 2.25 or 2 1/4

4 0
2 years ago
Formula given in picture
yarga [219]
I think It's 0.9% I'm not sure though or 1.03%
4 0
3 years ago
MATH HELP!
Irina18 [472]
You have the correct answer. Nice work. If you need to see the steps, then see below

-------------------------------------------------------------------------------

First we need to find the midpoint of H and I
The x coordinates of the two points are -4 and 2. They add to -4+2 = -2 and then cut that in half to get -1

Do the same for the y coordinates: 2+4 = 6 which cuts in half to get 3

So the midpoint of H and I is (-1,3). The perpendicular bisector will go through this midpoint

---------------------

Now we must find the slope of segment HI

H = (-4,2) = (x1,y1)
I = (2,4) = (x2,y2)
m = (y2 - y1)/(x2 - x1)
m = (4 - 2)/(2 - (-4))
m = (4 - 2)/(2 + 4)
m = 2/6
m = 1/3
Flip the fraction to get 1/3 ---> 3/1 = 3
Then flip the sign: +3 ----> -3

So the slope of the perpendicular bisector is -3

-----------------------

Use m = -3 which is the slope we found
and (x,y) = (-1,3), which is the midpoint found earlier
to get the following
y = mx+b
3 = -3*(-1)+b
3 = 3+b
3-3 = 3+b-3
0 = b
b = 0

So if m = -3 and b = 0, then y = mx+b turns into y = -3x+0 and it simplifies to y = -3x

So that confirms you have the right answer. I've also used GeoGebra to help confirm the answer (see attached)

7 0
3 years ago
1) The assistant principal at the girl’s school wants to determine which type of snack to give out to the entire Girls School po
adoni [48]

Answer:

C

Step-by-step explanation:

Due to the fact that you are surveying more people and that those people are differentiated there will be a more representative answer rather than a biased one.

6 0
2 years ago
Read 2 more answers
Write the equation in standard form for the conic section. 2x^2+4y^2-12x-327+74=0
Aleonysh [2.5K]
(x-3)^2 / (271/2) + y^2 / (271/4)=1.

Hope I helped☺☺
4 0
3 years ago
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