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Marianna [84]
3 years ago
5

6x^2 -14x = 0 , Using factoring method.

Mathematics
1 answer:
lana66690 [7]3 years ago
8 0
Take out the highest common factor.

The highest common factor between 6 (which 2*3) and 14 (which 2*7) is 2

The highest common factor between x^2 (which is x * x) and x(which is x) is x.

2x(3x - 7) = 0

Now either 2x = 0 in which case x = 0
or
3x - 7 = 0
3x = 7
x = 7/3 

The graph below shows you the answers to where 6x^2 - 14x cuts the x axis is below.

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Could you please help me with finding the circumference? An explanation to go with it would be great!
Naddik [55]

Step-by-step explanation:

37,7m, π*(r*2)

r*2 is diameter it's kinda ez , just put 37,7m and ur done

4 0
3 years ago
The perimeter of a rectangle is 68 inches. The perimeter equals twice the length of L inches, plus twice the width of 9 inches.
jok3333 [9.3K]
P=68

P=2L+2(9)

-----------------

Therefore:

2L+2(9)=68

2L+18=68

2L=68-18

2L=50

L=50/2

L=25

---------------

So the length is equal to <u>25 inches</u>.
5 0
3 years ago
Read 2 more answers
Please explain your answer and show your work
MissTica

9514 1404 393

Answer:

  A. 6b³

  B. 6b +6

  C. p = 0.0375(6b³ +b +1)

  D. $115.54

Step-by-step explanation:

<u>Given</u>:

  3 candles with dimensions b×b×b, b×b×2b, and b×b×3b

  with wicks of lengths b+2, 2b+2, 3b+2

  wick costs $0.005/cm; wax costs $0.03/cm³

  selling price is material cost + 25%

<u>Find</u>:

  A. an expression for total volume

  B. an expression for total wick length

  C. an expression for the purchase price of a set

  D. purchase price for a set with base area 64 cm²

<u>Solution</u>:

A. The sum of the volumes of the three candles is ...

  v = b³ +2b³ +3b³

  v = 6b³

__

B. The sum of the wick lengths is ...

  L = (b +2) +(2b +2) +(3b +2)

  L = 6b +6

__

C. The selling price is 25% more than the cost of materials so is ...

  p = (1.25)(0.03×6b³ +0.005×(6b +6)) = 0.225b³ +.0375b +.0375

  p = 0.0375(6b³ +b +1)

__

D. The side of the base is the square root of the base area, so is ...

  b = √(64 cm²) = 8 cm

Then the price of a set of candles is ...

  p = 0.0375(6·8³ +8 +1) = 0.0375·3081 = 115.54

Purchase price for a candle set with a base area of 64 cm² is $115.54.

4 0
3 years ago
Find the volume of a basketball with a diameter of 8.5 inches. Round your answer to the nearest hundredth.
ikadub [295]

Answer:

102.35

8.5 is the diameter and we need the radius which is 4.25. 4.25 ^ 3 is 76.75625 and times that by 4 gives us 307.0625 and divide that by 3 gives me 102.35 rounded to the nearest hundrenth

3 0
3 years ago
A survey showed that 82% of youth most often use the Internet at home. What fraction of youth surveyed most often use the Intern
Sophie [7]
3/25 use somewhere else
8 0
3 years ago
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