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liberstina [14]
3 years ago
13

Helppppppp pleaseeeeeeee

Mathematics
1 answer:
Lilit [14]3 years ago
4 0
B. Is the right answer

First you have to take the common elements then use an identity/formula to get the rest

x^3 - 3x^2 + x-3
x^2 (x-3) +1 (x-3)
(x^2 +1) (x-3)
(x-1)(x+1)(x-3) {using a^2-b^2 on x^2-1^2}
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Please help me thanks please
Ludmilka [50]

Answer: 3234 cubic units

Step-by-step explanation:

Volume of cylinder: πr²h

The diameter of the cylinder is 14 units so the radius is 7 units.

Now we'll substitute.

π = 22/7

h = 21

πr²h

π × 7² × 21

22/7 × 49 × 21 = 3,234

The volume is 3,234 cubic units.

6 0
3 years ago
A nut store normally sells cashews for​ $4.00 per pound and peanuts for​ $1.50 per pound. But at the end of the month the peanut
Dvinal [7]

Answer: 40 pounds of cashews should be mixed with the peanuts to ensure no change in the​ revenue

Step-by-step explanation:

Let x represent the number of pounds of cashews that should be mixed with the peanuts to ensure no change in the​ revenue.

The nut store normally sells cashews for​ $4.00 per pound and peanuts for​ $1.50 per pound.

In order to sell 60 pounds of​ peanuts, the manager decided to mix the 60 pounds of peanuts with some cashews and sell the mixture for $2.50 per pound. It means that

4x + (1.5 × 60) = 2.5(60 + x)

4x + 90 = 150 + 2.5x

4x - 2.5x = 150 - 90

1.5x = 60

x = 60/1.5

x = 40

5 0
3 years ago
A kayaker spends a morning paddling on a river. She travels 9 miles upstream and 9 miles downstream in a total of 6 hours. In st
tresset_1 [31]
To answer this item, we have 4 as the speed of the kayaker in still water and the speed of current be y.

When the karayaker moves upstream or against the current, his speed would be 4 - y. Further, if he moves downstream or with the current, the total speed would be 4 + y. The time utilized for the travel is equal to the ratio of the distance and the speed. 

 Total time = 9/(4 - y)  + 9/(4 + y) = 6

We multiply the equation by (4-y)(4+y)
              9(4-y) + 9(4 + y) = 6(4-y)(4+y)

Simplifying,
                72 = 96 - 6y²
Transposing all the constants to only one side of the equation and rearranging,
               6y² = 96 - 72
                 y² = 4
                    y = 2

Hence, the speed of the river's current is 2 miles/hr. <em>The answer is letter B.) 2 miles/hour.</em>
5 0
3 years ago
Please help me on this
Leni [432]
5 7/8 is the answer to the problem
4 0
3 years ago
Which of the following is true for this image?
iogann1982 [59]

We have that  Options That are correct are given as

  • A
  • C
  • D

From the question we are told

Which of the following is true for this image?

a. CD is the perpendicular bisector of AB

b. Neither line segment is a perpendicular bisector.

c. AB is the perpendicular bisector of CD

d. both line segments are perpendicular bisectors.

Generally

  • CD is the perpendicular bisector of AB

This is True Because CD Cuts Across AB at angle 90 in the middle

  • Neither line segment is a perpendicular bisector.

This is Untrue Because CD Cuts Across AB at angle 90 in the middle

  • AB is the perpendicular bisector of CD

This is True Because AB Cuts Across CD at angle 90 in the middle

  • Both line segments are perpendicular bisectors.

This is True

For more information on this visit

5 0
2 years ago
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