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allochka39001 [22]
2 years ago
10

Is (x + 5) a factor of f(x) = x3 − 4x2 + 3x + 7? Use either the remainder theorem or the factor theorem to explain your reasonin

g. This is worth 100 points. Will mark brainliest. Whatever you want. Please answer this.
Mathematics
2 answers:
Iteru [2.4K]2 years ago
7 0

Answer:

  • No

Step-by-step explanation:

Let's assume (x + 5) is the factor of f(x) = x^3 − 4x^2 + 3x + 7

then f(-5) should be equal to zero. Verifying:

  • f(-5) =
  • (-5)^3 - 4(-5)^2 +3(-5) + 7 =
  • -125 - 100 - 15 + 7 =
  • -233

Since -233 ≠ 0, the statement is false, so (x + 5) is not a factor of given polynomial

garik1379 [7]2 years ago
4 0

Answer:

No

Step-by-step explanation:

3x-8+3x+7-(simplified)-> 6x-1, which does not have (x+5) as a factor

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A rhino can run 28 miles per hour. What is that speed in feet per second, to the nearest whole number?
Mrrafil [7]

Answer:

A rhino runs at a speed of about 28 miles per hour.

We need to determine the speed in feet per second.

Converting miles to feet:

The miles can be converted to feet by multiplying 5280 with 28 miles per hour.

Thus, we have;

28 x 5280 = 14784028 × 5280 = 147840

Thus, the speed of the rhino in feet per hour is 147840

Converting hours to seconds:

The hours can be converted into seconds by dividing 147840 by 3600 (Because an hour has 60 seconds in a minute and 60 minutes in an hour)

Thus, we get;

Speed=\frac{147840}{3600}Speed=

3600

147840

Speed = 41.066667Speed=41.066667

Rounding off to the nearest whole number, we get;

Speed = 41

Therefore, the speed of the rhino is 41 feet per second.

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3 years ago
janie has four pieces of fruit two of the pieces of fruit are bananas write two fractions that describe the fraction of fruit th
-BARSIC- [3]

Answer:

1/2, 2/4.

Step-by-step explanation:

2/4 is one fraction because there are 2 bananas out of 4 pieces of fruit.

This can be simplified to 1/2.

3 0
3 years ago
Before a sale, an item’s price was $38.00; during the sale, it was 15% off. What was the sale price?
Pani-rosa [81]
38 times (1-15%)
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3 years ago
kittens weigh about 100 grams when they are born and gain seven to 15 grams per day if a kitten weighed 100 grams at Birth and g
pickupchik [31]
100x3=300
300-100=200
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3 years ago
Pls help me asap!!!!
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