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Novosadov [1.4K]
3 years ago
6

What is the product of (2x-1)(x+4)

Mathematics
1 answer:
Novay_Z [31]3 years ago
4 0

Answer:

\large\boxed{(2x-1)(x+4)=2x^2+7x-4}

Step-by-step explanation:

(2x-1)(x+4)\qquad\text{use FOIL:}\ (a+b)(c+d)=ac+ad+bc+bd\\\\=(2x)(x)+(2x)(4)+(-1)(x)+(-1)(4)\\\\=2x^2+8x-x-4\qquad\text{combine like terms}\\\\=2x^2+(8x-x)-4\\\\=2x^2+7x-4

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For a random sample of 20 professional athletes, there is a strong, linear relationship between the number of hours they exercis
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Answer:

D) -0.87

Step-by-step explanation:

I took this test don't quote me on the answer but this is what my peers put.

6 0
3 years ago
Billy is a professional baseball player. He had 99 singles, 47 doubles, 4 triples, and 15 home runs in his first year playing. I
Maurinko [17]

Answer: 792

Step-by-step explanation:

From what I got it should be 792 because it is asking for doubles, triples, and home runs all together at the same amount that he got on his first year.

It says after 12 years

Doubles 47 times 12 years = 564

Triples 4 times 12 years = 48

and

Home runs 15 times 12 years = 180

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8 0
3 years ago
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5xy-x2t+2xy+3x2t asap
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3 years ago
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Given right triangle abc and sin A= 1/2, cos A = √3/2
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Answer:

true

Step-by-step explanation:

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7 0
3 years ago
If point A is located at (-3,-1) and there are 10 points between A and B, what could be the possible coordinates for point B?
Nataly [62]

Answer:

Step-by-step explanation:

By drawing the point (-3,-1) in the coordinate plane we find the graph shown below. Since there are 10 points between points A and B, we need to start at point A and then we have to move 11 units either to the right, to the left, up, or down .

1. MOVING TO THE RIGHT:

From point A, move 11 units horizontally to the right to come to point B:

(-3+11, -1) = (8, -1)

2. MOVING TO THE LEFT:

From point A, move 11 units horizontally to the left to come to point B:

(-3-11, -1) = (-14, -1)

3. MOVING UPWARD:

From point A, move 11 units vertically upward to come to point B:

(-3, -1+11) = (-3, 10)

4. MOVING DOWNWARD:

From point A, move 11 units vertically downward to come to point B:

(-3, -1-11) = (-3, -12)

So this are the basic movements you can get to find point B. You also can move diagonally upwards or downwards  in whose case you would find other four points. The graph below shows a red point which is A, and the other points are in black color and represent B.

7 0
3 years ago
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