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ExtremeBDS [4]
4 years ago
5

Explain whether (x+3) is a factor of 2x^2-5x-3? Please help

Mathematics
1 answer:
kirza4 [7]4 years ago
8 0
Is that the full question? I simplified it to 2x^2 -5x +18 when you plug x+3 in for the variable (x) in the expression. I’m honestly not sure when to go from there. Hope that helps with something. Sorry I couldn’t do more
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Pleasseee help me with this.it’s life or death
barxatty [35]

Answer:

(a) 4 miles

(b) 8.9 miles

Step-by-step explanation:

(a) Theorem 1: In a right triangle, the altitude drawn from the right angle to the hypotenuse divides the hypotenuse into two segments. The length of the altitude is the geometric mean of these two segments.

Hence, the distance d between the park and the library is

d^2=2\cdot 8\\ \\d^2=16\\ \\d=4\ miles

(b) Theorem 2: In a right triangle, the altitude drawn from the right angle to the hypotenuse divides the hypotenuse into two segments. The length of each leg of the right triangle is the geometric mean of the lengths of the hypotenuse and the segment of the hypotenuse that is adjacent to the leg.

Thus, the distance D between the park and the football field is

D^2=8\cdot (2+8)\\ \\D^2=8\cdot 10\\ \\D^2=80\\ \\D=\sqrt{80}=4\sqrt{5}\approx 8.9\ miles

4 0
3 years ago
Solve the system by substitution.<br> y = 5x<br> y = 9x + 4
SVEN [57.7K]

Answer:

(-1, -5)

Step-by-step explanation:

\left \{ {{y=5x} \atop {y=9x+4}} \right.

1. We must calculate x, for that we must substitute y, so we have:

5x=9x+4

2. Now we solve the equation.

5x-9x=4

-4x=4

x=-1

3. Now we must calculate y

y=5x

y=5(-1)

y=-5

And the answer is (-1, -5)

5 0
3 years ago
If you feel a room is claustrophobic, would you enjoy being in it? Why?
s2008m [1.1K]

Answer:

no i would not because its too much of a cramped space and i don't enjoy having extremely limited space

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
Do what is on the attachment
postnew [5]
The answer would be A.
6 0
4 years ago
The volume of the barrel is 4.6 m. It is half water. How many liters of water are there?​
Mariulka [41]

Answer:

2300 liters of water.

Step-by-step explanation:

The volume of the barrel is 4.6 m^3, and we know that this is half--filled with water.

Then the total volume of water inside the barrel is:

(4.6 m^3)/2 = 2.3 m^3

So we have 2.3 m^3 of water, and we want to write this in liters.

We know that 1 liter = 0.001 m^3

then:

1 = (1 L)/(0.001 m^3)

Now we can rewrite:

2.3 m^3 = (2.3 m^3)*1 = (2.3 m^3)* (1 L)/(0.001 m^3) = (2.3 m^3/0.001 m^3)* 1L

2.3 m^3 = 2300 L

So we have 2300 liters of water in the barrel.

8 0
3 years ago
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