Which expressions are equivalent to 4x^2-25? Select all that apply

Mathematics

1 answer:

Kazeer [188]2 years ago

3 0

(2x-5) • (2x+5) are the expressions equivalent to 4x^2-25

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*please help and explain how you got the answer!*

stepan [7]

Answer:

Step-by-step explanation:

A= (4-1)^3

simplify A to be 3^3

Which gives us 27

B=(2*3)^2-9

simplify B

first multiply the 2 numbers in paranthesis which gives us 6. raise it to the power of 2 which is 39 and then subtract 9. Gives us 27.

C=15^3*4-12

Simplify the exponent first. 3*4 gives us 12 and 12-12 equals 0. Anything raised to the power of 0=1

If A-B^C is the equation we can write 27-27 raised to the power of 1 which is 0

7 0

2 years ago

Suppose an oligopoly consists of two firms. Firm A lowers price and Firm B responds by lowering its price by the same amount. If

VMariaS [17]

Answer:

The profits for firma A and B will decrease.

Step-by-step explanation:

Oligopoly by definition "is a market structure with a small number of firms, none of which can keep the others from having significant influence. The concentration ratio measures the market share of the largest firms".

If the costs remain the same for both companies and both firms decrease the prices then we will have a decrease of profits, we can see this on the figure attached.

We have an equilibrium price (let's assume X) and when we decrease a price and we have the same level of output the area below the curve would be lower and then we will have less profits for both companies.

4 0

2 years ago

Simplify: 10 • 12 + - 15 divided by 5 + 2 (9-4)

Ket [755]

Alright. So the problem is

10*12+-15/5+2(9-4)

Lets break down what we can for now

First focus on parenthesized, multiplying, and dividing in the problem.

10*12=120 15/5=3 (9-4)=5

120+-3+2*5

So the next step, we see 2*5 and a negative -3 on top of a positive symbol.

2*5=10

120-3+10

Now subtract from the left to the right and get your answer.

120-3=117

117+10=127

7 0

3 years ago

What is the slope of a line that goes through the points (-1,2) and (1, 4)?

oksian1 [2.3K]

Answer:

Step-by-step explanation:

We can use the slope formula

m = ( y2-y1)/(x2-x1)

= ( 4-2)/(1 - -1)

= (4-2)/(1+1)

= 2/2

= 1