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iragen [17]
3 years ago
10

If h(x) = 4x − 8 and j(x) = −x, solve h[j(3)] and select the correct answer below. (1 point) −20 −36 1 4

Mathematics
2 answers:
nadya68 [22]3 years ago
4 0

Answer:

Correct answer is:

-20

Step-by-step explanation:

h(x) = 4x − 8 and j(x) = −x

We have to solve h[j(3)]

j(3)= -3

So, h[j(3)]=h[-3]

               = 4(-3)-8

               = -12-8

               = -20

Hence, Correct answer is:

-20

Nostrana [21]3 years ago
3 0

Answer:

h[j(3)] = -20

Step-by-step explanation:

We need h(j(3)).  First find j(3)

j(x) = -x, so

j(3) = -(3) = -3

Now find h(-3)

h(x) = 4x - 8, so

h(-3) = 4(-3) - 8

  h(-3) = -12 - 8 = -20

So h[j(3)] = -20

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Three packages of pens and one box of paper cost $26. Two packages of pens and 7 boxes of paper cost $49. How much does one box
algol13

Answer:

5 dollars

Step-by-step explanation:

Let's call the price of a package of pens n, and the cost of a box of paper r.

3n+r=26

2n+7r=49

Multiply the first equation by 7:

21n+7r=182

Subtract the second equation from the first:

19n=133

Divide both sides by 19 to isolate n:

n=7

Plug this back in to find the value of a box of paper:

3(7)+r=26

21+r=26

r=5

Hope this helps!

5 0
3 years ago
|-5| – |-2| how do you do this. so you know this is high school work
makvit [3.9K]
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8 0
3 years ago
Read 2 more answers
a vido game system is being sold at a 4% discount. if the discount results in a saving of$11,96, what is the original price of t
kramer

Answer:

$299

Step-by-step explanation:

Divide the discount amount through the discount percentage and multiply with a hundred percent, resulting in the full price.

($11,96)/4*100=$299

8 0
3 years ago
Please help me in this questions....​
Ivahew [28]

Part (i)

I'm going to use the notation T(n) instead of T_n

To find the first term, we plug in n = 1

T(n) = 2 - 3n

T(1) = 2 - 3(1)

T(1) = -1

The first term is -1

Repeat for n = 2 to find the second term

T(n) = 2 - 3n

T(2) = 2 - 3(2)

T(2) = -4

The second term is -4

<h3>Answers: -1, -4</h3>

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

Part (ii)

Plug in T(n) = -61 and solve for n

T(n) = 2 - 3n

-61 = 2 - 3n

-61-2 = -3n

-63 = -3n

-3n = -63

n = -63/(-3)

n = 21

Note that plugging in n = 21 leads to T(21) = -61, similar to how we computed the items back in part (i).

<h3>Answer:  21st term</h3>

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

Part (iii)

We're given that T(n) = 2 - 3n

Let's compute T(2n). We do so by replacing every copy of n with 2n like so

T(n) = 2 - 3n

T(2n) = 2 - 3(2n)

T(2n) = 2 - 6n

Now subtract T(2n) from T(n)

T(n) - T(2n) = (2-3n) - (2-6n)

T(n) - T(2n) = 2-3n - 2+6n

T(n) - T(2n) = 3n

Then set this equal to 24 and solve for n

T(n) - T(2n) = 24

3n = 24

n = 24/3

n = 8

This means 2n = 2*8 = 16. So subtracting T(8) - T(16) will get us 24.

<h3>Answer: 8</h3>
4 0
3 years ago
Which of the following would be a line of reflection that would map ABCD onto itself?
Sonbull [250]

Answer:

I'm not sure but I think the answer is x + y = 1

Step-by-step explanation:

I hope this helps!

6 0
2 years ago
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