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Ronch [10]
3 years ago
15

Solve each quadratic equation. (2x-1)(x+7)=1

Mathematics
1 answer:
Galina-37 [17]3 years ago
3 0
So you foil out the problem and get
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The radius of a sphere is increasing at a rate of 3 mm/s. how fast is the volume increasing when the diameter is 100 mm?
Katena32 [7]
33 per seconds
1s/3mm x/100mm x=33.3 s
4 0
3 years ago
i need to know what the area of a triangle is with a base of 27 ft and a height of 12 ft? I took 12x27=324/2 = 162 and I don't h
Mamont248 [21]

Based on what I learned in school, your answer should be correct. I double checked the calculations:)


6 0
4 years ago
It takes one examiner 36 hours to mark 70 exam papers. How long would it take 6 examiners to mark 70 papers?
Orlov [11]

Answer:

36 divided by 6 is 6

Step-by-step explanation:

idk if im right i j wokeup lol

3 0
3 years ago
Math number 8. <br><br> Find the value of x
ruslelena [56]

Answer:

8

Step-by-step explanation:

By intersecting chords theorem:

14(2x + 2) = 12(2x + 5) \\  \\  28x + 28 = 24x + 60 \\  \\ 28x - 24x = 60 - 28 \\  \\ 4x = 32 \\  \\ x =  \frac{32}{4}  \\  \\ x = 8

5 0
3 years ago
Mr. Holloway is a craftsman who makes custom guitars by hand. His last order was for 2 guitars, and it took him 8 weeks to make
o-na [289]

Answer:

It took Mr. Holloway 28 weeks to make 7 guitars.

Step-by-step explanation:

The question is incomplete, but if we are trying to find out how many weeks it would take him to make 7 guitars then the answer would be 28.

First you have to find out how many weeks it takes him to make 1 guitar.

8 ÷ 2 = 4 (4 weeks to make 1 guitar)

Then you have to multiply 4 by 7 since it takes 4 weeks to make 1 guitar.

4 * 7 = 28 (28 weeks to make 7 guitars)

7 0
3 years ago
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