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Naily [24]
3 years ago
9

F(x) = x3 + 3x² - 4x

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
6 0

Answer:

x(x−1)(x+4)

Step-by-step explanation: there are no like terms

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Sandra normally takes 2 hours to drive from her house to her grandparents' house driving her usual speed. However, on one partic
Rudiy27

Answer:

Her usual driving speed is 38 miles per hour.

Step-by-step explanation:

We know that:

s = \frac{d}{t}

In which s is the speed, in miles per hour, d is the distance, in miles, and t is the time, in hours.

We have that:

At speed s, she takes two hours to drive. So

s = \frac{d}{2}

d = 2s

However, on one particular trip, after 40% of the drive, she had to reduce her speed by 30 miles per hour, driving at this slower speed for the rest of the trip. This particular trip took her 228 minutes.

228 minutes is 3.8 hours. So

0.4s + 0.6(s - 30) = \frac{d}{3.8}

So

3.8(0.4s + 0.6s - 18) = d

3.8s - 68.4 = 2s

1.8s = 68.4

s = 38

Her usual driving speed is 38 miles per hour.

3 0
3 years ago
The coordinates of point P are (−3, 4). What are the coordinates of the point that is a reflection of point P over the y-axis? (
ahrayia [7]
The answer would be ( 3 , 4 )
7 0
2 years ago
Read 2 more answers
7th question help please
vaieri [72.5K]
Surface area of the pyramid= 4*(area of the triangle) + area of the square

Area of the triangle = (1/2)*base*height=(1/2)*5*5= 25/2 in²
Area of the square = 5*5 =25 in²

Surface area of the pyramid = 4*(25/2) + 25=2*25 + 25=75 in²
3 0
3 years ago
Read 2 more answers
He
RUDIKE [14]
$4680
Since 18% is 18/100 you just have to multiply the $842.4 by the reciprocal of that to find your answer
Reciprocal of 18/100 is 100/18
842.4* 100/18 equals 84240/18
84240/18 equals 4680
3 0
3 years ago
Evaluate 6j+ 23+k/l−3, when j=3, k=7, and l=33. Enter your answer in the box.
LekaFEV [45]
<span>83.212121 or fraction form is </span>83 7/33​<span> </span>
7 0
3 years ago
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