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Bond [772]
1 year ago
10

The function f is defined by f(x)=2x^2-1

Mathematics
1 answer:
motikmotik1 year ago
6 0

Step-by-step explanation:

here

f(x)=2x^2-1

Now

f(4y)=2*4y^2-1

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8. Solve the system of equations using substitution.
Elodia [21]

Answer:

D

Step-by-step explanation:

In order to solve this we need to plug in the answer choices and make sure they work for BOTH answers!

Let us start with option A. (6,3)  3 = 4(6) + 6     = 3 = 30 This is automaticly wrong because 3 doesnt equal 30. There is no need to try it on the second equation since the first one was wrong.

Next answer choice, B  (3,6)  6 = 2(3) =   6=6. The second equation works perfect for this. Now we have to make sure that it works for the first one as well. 6 = 4(3) + 6   = 6 = 18 which is wrong.

Next, C.  (1,2)   2 = 2(1) = 2=2 Right now lets check the other equation.

2 = 4(1) + 6 = 2=10. Wrong

Last, D. (-3, -6)    -6 = 2(-3)  = -6 = -6 Right now lets check the other equation.

-6 = 4(-3) + 6 = -6 = -6. CORRECT. Answer choice D works for both equations.

Sorry for the wait of response.

8 0
3 years ago
Which letter is in the solution set for graph #2
stealth61 [152]

Answer:

<h2>A</h2>

Step-by-step explanation:

y > 0 - the region above the line together with that line

y ≥ 0 - the region above the line together with that line

y < 0 - the region below the line without that line

y ≤ 0 - the region below the line together with that line

We have:

y > 2 - the region above the line together with that line

y ≥ 2x - 3 - the region above the line together with that line

<em>look at the picture</em>

The common part is the solution.

8 0
3 years ago
4x + 6 - x = 7 + 2 x
rodikova [14]

Answer:

x = 1

Step-by-step explanation:

4x + 6 - x = 7 + 2x

3x + 6 = 7 + 2x

3x - 2x = 7 - 6

x = 1

8 0
3 years ago
Read 2 more answers
The base of an isosceles triangle is a fourth as long as the two equal sides. write the perimeter of the triangle as a function
jeka57 [31]
Set the length of the base as x, the two equal sides are then 4x each, so the perimeter is x+4x+4x=9x
5 0
4 years ago
Given: JK tangent, KH=16, HE=12 Find: JK.
grin007 [14]

Check the picture below.

7 0
3 years ago
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