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4 years ago

I am desperate and so clueless. Expertise please! Select EACH correct answer.

Mathematics

1 answer:

Sedaia [141]4 years ago

7 0

K(x) = (1/4)^x

(1,4) when x = 1, k(1) = (1/4)^1 = 1/4....FALSE
(3, 1/64) when x = 3, k(3) = (1/4)^3 = 1/64....TRUE
(-1,4) when x = -1, k(-1) = (1/4)^-1 = 4....TRUE
(0, 1/4) when x = 0, k(0) = (1/4)^0 = 1....FALSE

answer
(3, 1/64)
(-1,4)

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a classroom has 24 bulbs and four of the bulbs are failed. how many arrangements are the four failed bulbs are possible?

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Answer:

Step-by-step explanation:

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1 year ago

What is the value of x?<br> -5x – 2 = -13

Phantasy [73]

Answer:

2.20

Step-by-step explanation:

So add +2 both sides that cancels 2 and that makes it -11.00 now divide it by -5 and x is by itself

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3 years ago

Read 2 more answers

Value mart is having a back to school sale on pencils a pack of 30 sells for 7.97 whereas a 12 pack brand cost for 4.77 which is

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30 pack.

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3 years ago

To balance a seesaw, the distance a person is from the fulcrum is inversely proportional to his or her weight . Roger , who weig

Marysya12 [62]

Answer:

$d_e =6.67ft$

Step-by-step explanation:

From the question we are told that:

Weight of Roger $W_r=120\ pounds$

Distance of Roger from fulcrum $d_r=6 ft$

Weight of Ellen $W_e=120\ pounds$

Generally the equation for distance-weight relationship is mathematically given by

$d\alpha \frac{1}{W}$

$\frac{d_1}{d_2} =\frac{W_2}{W_1}$

$\frac{d_r}{d_e} =\frac{W_e}{W_r}$

Therefore

$\frac{d_e}{d_r} =\frac{W_r}{W_e}$

$d_e =\frac{W_r*d_r}{W_e}$

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6 0

3 years ago

Check the solution.

Julli [10]

Answer:

Both equations, when we replace the solution, generate identities.

Step-by-step explanation:

We are given the following system:

y = x - 7

y = -4x + 3

We are given the following solution.

(2,-5).

First equation:

We have to show that when x = 2, y = -5. So

y = x - 7

-5 = 2 - 7

-5 = -5

So ok

Second equation

We have to show that when x = 2, y = -5. So

y = -4x + 3

-5 = -4(2) + 3

-5 = -8 + 3

-5 = -5

We generate both identities, so the solution is checked.

5 0

3 years ago