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Drupady [299]
3 years ago
13

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

Mathematics
1 answer:
MissTica3 years ago
4 0

Answer:

2x² + 7x - 4

Step-by-step explanation:

(2x-1)(x+4)

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

=2x² + 8x - x -4

=2x² + 7x - 4

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A delivery truck traveled 324 miles on 18 gallons of gas. How far can be traveled on 41 gallons of gas?
bekas [8.4K]
Set up the equation:
<u>324</u> = <u> </u><u>x </u>
 18     41

(324 * 41)/18  = 738 miles<u />
6 0
3 years ago
A to B is 420 mile away, A travels 40 mph and B travels 80 mph. they toward to each other. how many hour will they meet ?
N76 [4]

Answer:

Step-by-step explanation:

I hope these are people in vehicles travelling toward each other.

80 mh * t + 40 mph * t = 420 miles

The two vehicles are going to travel a total of 420 miles. B will cover a lot more ground than A, but together they will make 420 miles

80t + 40t = 420

120t = 420

t = 420/120

t = 3.5

So after driving 3.5 hours, the two cars will meet.

5 0
3 years ago
Evaluate the function for x = 2 and x = 6 f(x) = -(x - 2)​
12345 [234]

Answer:

f(2) = 0 and f(6) = -4

Step-by-step explanation:

First, find f(x) when x = 2

Plug in 2 as x in the function:

f(x) = -(x - 2)​

f(2) = -(2 - 2)

f(2) = -(0)

f(2) = 0

Next, find f(x) when x = 6. Plug in 6 as x in the function:

f(x) = -(x - 2)​

f(6) = -(6 - 2)

f(6) = -(4)

f(6) = -4

So, f(2) = 0 and f(6) = -4

3 0
3 years ago
What is the slope of the line that contains these points?
Rus_ich [418]
For the first one it might be 26? i’m not so sure
8 0
3 years ago
A cubical water tank can contain 1000/125 cubic meters of water. Find the length of a
Gala2k [10]

Answer:

2 meters.

Step-by-step explanation:

We know that a cube of sidelength L has a volume:

V = L^3

Here, we know that the volume of water that the cube can hold is:

(1000/125) m^3

Then the volume of our cube is exactly that:

V = (1000/125) m^3

Then we have the equation:

L^3 = (1000/125) m^3

Which we can solve for L

L = ∛((1000/125) m^3 ) = (∛1000/∛125) m

Where we used that:

∛(a/b) = ∛a/∛b

Solving the cubic roots, we get:

L = (10/5) m = 2m

The length of the side of the water tank is 2 meters.

4 0
3 years ago
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