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Mamont248 [21]
3 years ago
15

Use the remainder theorem to determine which number is a root of f(x) = x3 - x2 - 2x + 8.

Mathematics
1 answer:
Marrrta [24]3 years ago
4 0

Answer:

It's B) -2

Step-by-step explanation:

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Which values of x are point(s) of discontinuity for this function? Function x = –4 x = –2 x = 0 x = 2 x = 4
Nadya [2.5K]

Answer:

the answer is x=0 and x=2

Step-by-step explanation:

6 0
3 years ago
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Sin x = - 1/2<br> where (-360 &lt; x &lt; 360)
dimulka [17.4K]

Answer:

-30, 210 and 330 degrees

Step-by-step explanation:

Given the expression Sin x = - 1/2

x = arcsin(-1/2)

x = -30 degrees

Since sin is negative in the third and fourth quadrant

x = 180 + 30

x = 210 degrees

In the fourth quadrant

x = 360 - 30

x = 330

Hence the value of x within the interval -360 < x < 360 are -30, 210 and 330 degrees

3 0
3 years ago
A chess club plans to sell water to raise $425 and they already have 175, if they sell water bottles for 8$ each, at least how m
alisha [4.7K]

Answer:

32 water bottles

Step-by-step explanation:

8x=425-175

425-175=250

250 is how much more they need.

8x=250

x=31.25

You can't have half of a bottle... so round up to at least 32 water bottles

4 0
3 years ago
What is the equation of the line passing through the points (4, -7.5) and (6, -3.5) in slope-intercept form?
Ratling [72]

Answer:

Your answer will be

y=2x-15.5

Step-by-step explanation:

Hi, there you must know the slope-intercept form which is

y=mx+b

m=slope

b=y-intercept

You can also use

the slope formula which is

\frac{y_2-y_1}{x_2-x_1}

in this case

it will look like this

\frac{-7.5-(-3.5)}{6-4}=\frac{-4}{2}=-2

So the slope is -2

Now we will find the y-intercept

-7.5=2(4)+b

-7.5=8+b   Subtract 8 both sides

-15.5=b

Your y-intercept is -15.5

Hope this helps

6 0
2 years ago
Is 4( 3b - 4) equivalent to 2( 6b - 8) ?
wariber [46]

Answer:

YES

Step-by-step explanation:

4(3b-4)=2(6b-8)

12b-16=12b-16

YES

5 0
3 years ago
Read 2 more answers
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