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Lemur [1.5K]
3 years ago
14

If h(x) = 5x – 3 and j(x) = -2x, solve h[j(2)]

Mathematics
1 answer:
Yuki888 [10]3 years ago
5 0

Answer:

-23

Step-by-step explanation:

j(2) = -2(2)

j(2) = -4

h(-4) = 5(-4) -3

h(-4) =-23

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Which of the following is a correct factorization of this trinomial?
katovenus [111]

Answer:

D

Step-by-step explanation:

Step 1: Find the factors of 4 and -6

-4x² +11x-6

-4x           3  

1x           -2

(This works because -4 x -2 multiple to 8 and 3 x 1 gives you 3 and when you add it up it gives you the 'b' term)

Step 2: Read the numbers from left to right starting from the top to bottom

(-4x+3)(1x-2)

Therefore the answer to the question is D.

3 0
3 years ago
Read 2 more answers
What is the slope of the line ?
Marat540 [252]

Answer:

3/4

Step-by-step explanation:

You can calculate slope with \frac{y1-y2}{x1-x2}

2 points from the graph are (0,-1) and (4,2)

plugging the points in would give you

\frac{2-(-1)}{4-0} = \frac{3}{4}

Please rate me as brainliest if this helped!

7 0
4 years ago
A package of 6 pairs of insulated gloves costs $31.74. What is the unit price of the pairs of gloves?
larisa86 [58]

Answer:

$5.29

Step-by-step explanation:

If a total of 6 gloves are $31.74, you  divide by the number of gloves (6) to get your answer

31.74/6= 5.29

5 0
3 years ago
Read 2 more answers
I eat 2 spoons of nuts every day for a week. Then I eat 3 spoons for the following w weeks. How many spoons did I eat on average
Shtirlitz [24]

Answer:

7.5 nuts each day

Step-by-step explanation:

(2*7)+(3*7)=35 spoons of nuts

35*3=105 nuts in two weeks

105/14=7.5 nuts each day

7 0
3 years ago
Use the regression line for the data in the scatterplot to answer the question. On average, how many more goals will a player sc
kari74 [83]

Answer:

A. 1/2 of a goal

Step-by-step explanation:

Hello!

Given the options:

A. 1/2 of a goal

B. 3/4of a goal

C. 1 goal

D. 4/3 goals

In a linear regression analysis the interpretation of the slope is:

> The modification of the average of Y when X increases one unit.

Given the variables

Y: Goals scored in the tournament.

X: Hours of training.

To calculate the slope, you have to use the y-intercept and choose two pairs of (Y;X) values that correspond to a value on the line, for example (1;1.5) and (2;1.5).

You can calculate the slope as b= ΔY/ΔX

b= \frac{Y_2-Y_1}{X_2-X_1}= \frac{1.5-1}{1-0} = \frac{0.5}{1}= \frac{1}{2}

1st value (X₁;Y₁)= (0;1)

2nd value (X₂Y₂)= (1;1.5)

So the average goals a player scores for every additional hour of practice is 1/2.

I hope this helps!

4 0
3 years ago
Read 2 more answers
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