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Verizon [17]
3 years ago
9

Which point is an x-intercept of the quadratic function f(x) = (x - 4)(x + 2)?

Mathematics
1 answer:
hammer [34]3 years ago
8 0

Answer: A(4,0) and B(-2.0)

Step-by-step explanation:

First, do (x-4),

Now, x-4=0, then subtract

X=4

Now x+2

X+2=0, then subtract

X=-2

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Does anyone know the answer?
Mashcka [7]

The points C and D are 13.8173 meters apart.

Step-by-step explanation:

Step 1:

Assume the distance between points C and D is x. So the distance from B to D is (x + 24) m.

In the triangle, the given angle is 48°, the opposite side, AB's length is 42 meters. The adjacent side's length is (24 + x) meters. To determine the x's length, we determine the tan of the angle. To calculate the tan of an angle, we divide the opposite side's length by the adjacent side's length.

tan \theta = \frac{oppositeside}{adjacent side}.

Step 2:

The length of the opposite side = 42 meters.

The length of the adjacent side = (24 + x) meters.

tan \theta = \frac{oppositeside}{adjacent side}, tan 48 = \frac{42}{24+x}, tan 48 = 1.1106.

1.1106 (24+x) = 42, 26.6544 + 1.1106x = 42.

1.1106x = 42 - 26.6544 = 15.3456, x = \frac{15.3456}{1.1106} = 13.8173.

So the distance between C and D is 13.8173 meters.

4 0
3 years ago
I'll give brainliest!
natima [27]
Your answer should be B.
x+2y=8
8 0
4 years ago
Read 2 more answers
Using compatible numbers, which is the best estimate of (28.5)(7.1)
Stella [2.4K]

Answer:

203

Step-by-step explanation:

estimate 28.5 = 29

estimate 7.1 = 7

there for 29 x 7 = 203

  • I had the same question!!!
6 0
3 years ago
Read 2 more answers
Is Resistant to dilute solutions of bleach a chemical or physical property ?
nasty-shy [4]

Answer:

Bleaching agents contain oxidizing compounds, so they change the chemical composition of the stain from a coloured one to a colorless one. So it is a chemical change

3 0
2 years ago
Calculate the value of each expression.
tester [92]

Okay I got

1.-4

2.4

3.-6

4.6

3 0
3 years ago
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