3 years ago

Which ordered pair is a solution of the equation?

Mathematics

1 answer:

uysha [10]3 years ago

5 0

Only b

apply -1 to x and it will give you y=-5

You might be interested in

How to review math ? the thing you have been learned

Temka [501]

I have no idea what you're talking about. Can you explain in detail plz?

5 0

3 years ago

Angle A and angle B are supplementary angles. If the measure of angle A = (3x - 12) and the measure of angle B = (4x - 25), find

Crank

Answer:

what is x so I can help you.

4 0

3 years ago

Can someone please help me

scoundrel [369]

I think it is c. but i'm not sure

3 0

3 years ago

If y varies directly as the x^2 and y =200 when x =5 ,What is the value of y when x =-3

PtichkaEL [24]

The answer you want would be -120

b/c 200/5 is 40 so -3*40 is <em>-120</em>

6 0

4 years ago

Read 2 more answers

An aircraft factory manufactures airplane engines. The unit cost C (the cost in dollars to make each airplane engine) depends on

butalik [34]

Answer:

90 engines must be made to minimize the unit cost.

Step-by-step explanation:

Vertex of a quadratic function:

Suppose we have a quadratic function in the following format:

$f(x) = ax^{2} + bx + c$

It's vertex is the point $(x_{v}, y_{v})$

In which

$x_{v} = -\frac{b}{2a}$

$y_{v} = -\frac{\Delta}{4a}$

Where

$\Delta = b^2-4ac$

If a>0, the minimum value of the function will happen for $x = x_v$

C(x)=x²-180x+20,482

This means that $a = 1, b = -180, c = 20482$

How many engines must be made to minimize the unit cost?

x value of the vertex. So

$x_{v} = -\frac{b}{2a} = -\frac{-180}{2(1)} = 90$

90 engines must be made to minimize the unit cost.

3 0

3 years ago