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gavmur [86]
3 years ago
9

Is (-4, 2) a solution of 4x + 5y <_-7? Choose 1 answer: Yes or No

Mathematics
1 answer:
siniylev [52]3 years ago
5 0

Answer:

no

Step-by-step explanation:

substitute the (x,y) values into the inequality.

4(-4)+5(2) less than or equal to -7

-16+10≤-7

-6≤-7 not a valid answer so ((-4,2) is not a solution

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How do you graph f(x)= |x-2|+5
ElenaW [278]
For this we are going to use the equation f(x)=a|x+h|+k
Since there is no a shown, we know that a=1. This means the slope of the graph by 1's. (slope=1 one on the right side and slope=-1 on the left, because absolute value graphs are shaped like a "v".)
Since h=-2, just move the function to the left 2 units.
Since k=5, move the function up 5 units.
This basically means the vertex of the function is at the point (-2,5).

So put the point (-2,5) on your graph, then make the v-shape with a slope of 1 on the right side, and -1 on the left. 

Sometimes if you aren't sure how the graph will look, just plug x-values into the function to get their corresponding y-values. Then see how the graph looks to check.

5 0
3 years ago
What is the difference between economies of scale and returns to​ scale? A. Economies of scale define how cost changes with​ out
svlad2 [7]

Answer:

The answer is (A) Economies of scale define how cost changes with​ output, and returns to scale define how output changes with input usage

Step-by-step explanation:

Economies of scale show the effect of an increased output level on unit costs, Economies of Scale refer to the cost advantage experienced by a firm when it increases its level of output. The advantage arises due to the inverse relationship between per-unit fixed cost and the quantity produced. The greater the quantity of output produced, the lower the per-unit fixed cost.

Returns to scale focuses only on the relationship between input and output quantities. Returns to scale is the variation, or change, in productivity that is the outcome from a proportionate increase of all the input.

3 0
4 years ago
Read 2 more answers
After a week he decides he needs more sod so he doubles the dimensions to 20ft.
Bumek [7]
He owes 120 $ all you have to do is multiple 60 and 20 and you will get your answer hope I helped
8 0
3 years ago
PLEASE HELP ASAP! I have no idea where to start with this.
lozanna [386]

Answer:

h (-5) = 41/4 or 10.25

h (-2) = -3

h (3) = 25/4 or 6.25

Step-by-step explanation:

h (-5) = 1/4(-5)^2 + 4

h (-5) = 1/4(25) + 4

h (-5) = 41/4 or 10.25

h (-2) = -3 (this is given to you in the function)

h (3) = 1/4 (3)^2 + 4

h (3) = 1/4(9) + 4

h (3) = 25/4 or 6.25

4 0
3 years ago
(please zoom / zoom out if needed to see question. (: )
Natalija [7]
1 yard=3 ft, yeah? So, 
(60)/(600)=0.10
arctan (0.10) =
the plane must take off at an angle of at least 5.7106 degrees
8 0
3 years ago
Read 2 more answers
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