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Vilka [71]
3 years ago
8

Ran 12 kilometers in 66 minutes. How many kilometers in 22 minutes

Mathematics
1 answer:
Dafna1 [17]3 years ago
3 0
12/66--->x/22

12/66--->4/22 (almost 4/20 if you know what I mean)
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Use the Factor Theorem to determine whether x + 1 is a factor of P(x) = 2x³+4x²–2x−8.
Harman [31]

Answer: 2x^2+2x-4-\frac{4}{x+1}

Not a factor because there is a remainder.

Step-by-step explanation:

Let's use synthetic division to solve this..

-1  ║ 2 | 4 | -2 | -8

   ║    | -2| -2 |  4

   ║ 2 | 2|  -4 |  -4

2x^2+2x-4-\frac{4}{x+1}

PS: if anyone knows a better way to do a synthetic division chart please let me know.

5 0
1 year ago
Anyone mind helping me out?
Igoryamba

Answer:

611 square miles

Step-by-step explanation:

Area of triangle = (1/2)*a*b*sinC (formula when u are not given the height of the triangle, but u are given with the angle.)

= (1/2)*30*47*sin(60°)

= 610.54 square miles (2 d.p)

≈611 square miles (rounded to nearest mile)

:)

4 0
3 years ago
What is the best estimate for the product of 289 and 7
Nat2105 [25]
290 * 7 = 1400 + 630 = 2,030
2030 - 7 = 2,023
4 0
3 years ago
Read 2 more answers
John is twice as old as Mary. The sum of their ages is 21. How old is Mary?
lesya692 [45]
J=john
m=mary
j is 2 times as old as mary
j=2 times m

sum is 21
m+j=21
find mary
subsitute

j=2m therefor subsitute 2m for j
m+2m=21
add like terms
3m=21
divide by 3
m=7

mary=7

*HOPE I HELPED!*
6 0
3 years ago
PLEASE HELP!! I AM BEING TIMED!!<br> WILL MARK BRAINLIEST!
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Answer:A b c a c b c a b b a e all answers trust me and mark me brainest

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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