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Olegator [25]
3 years ago
5

Subscribe to joseph vlog helmer

Mathematics
1 answer:
Marrrta [24]3 years ago
4 0
Sure buddy, will do that today
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Find (g • f) ^(3) PLEASE HELLPP
spayn [35]
The first thing we are going to do to find (g°f)(3), is find (g°f)(x). To do that, we are going to evaluate g(x) at f(x):
(g°f)(x)=g(f(x))=g(3x-2)=(3x-2)^2=9x^2-12x+4

Now, we can evaluate (g°f) at 3:
g(f(3))=9(3)^2-12(3)+4
g(f(3))=9(9)-36+4
g(f(3))=81-32
g(f(3))=49

We can conclude that the correct answer is c. 49
6 0
3 years ago
If 20 out of 25 students in a P.E. class are boys, what percent of the class is made up of boys?
Ivanshal [37]
80% !
hope this helps
4 0
3 years ago
Please help I don't understand
valina [46]
17) The line that is John is closer to certain but not exactly on certain so I'd say it's "likely"

18) Using that same example as the one above, if 0 means impossible, then 1 means certain. I'd place your label for Sara at 1. 

19) Let s = sides of the square. There are 4 sides and all sides are equal so we can set up the equation 4s = 64. Divide both sides by 4. s =  16. Now add 2 to this. 16 + 2 = 18. The length of each side of the original square was 18.

20) If the scale is 1 cm : 1 meter and the height of the model is 16 cm, then the actual plane must be 16 meters. 

21) 2x and 100 are supplementary angles meaning together they must add up to 180.

2x + 100 = 180
2x = 180 - 100
2x = 80
Divide both sides by 2
x = 40

22) Assuming 3x is supposed to be the right angle, right angles are 90 degrees. 

3x = 90
Divide by 3 on both sides
x = 30. 
6 0
3 years ago
If a convex polyhedron has 12 edges and 8 faces, then how many vertices does it have?
Vika [28.1K]
Hi 

Use Euler's formula for this for a 3D figure. F + V = E + 2, where F is the number of faces, V is the number of vertices, E is the number of edges, +2! You have enough info to fill in the formula to find that the number of vertices is 6.
Hoped I Helped 
4 0
3 years ago
Read 2 more answers
31,680ft =?mi<br><br> A: 6<br> B: 60<br> C: 2,630<br> D: 18
miv72 [106K]

Answer:

6 miles

Step-by-step explanation:

A mile is 5280 ft. When you divided 31,680 ft by 5280 ft you get six miles. Hope this helped!

5 0
3 years ago
Read 2 more answers
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