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RideAnS [48]
3 years ago
15

Please Help 7th Grade Math

Mathematics
2 answers:
bazaltina [42]3 years ago
6 0
I hate math it sucks
notka56 [123]3 years ago
3 0
The circle area formula is A=pi r^2. I am assuming those numbers represent diameter, and diameter is radius x 2. 6/2=3, and pi 3^2= 28.27433388. Divide this by 2 and the area of your half circle is 14.13716694. On the other half circle, 5/2= 2.5. pi times 2.5^2 is 19.63495408, divided by two is 9.817477042. Hope it helps!
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What is the expected value of the above spinner?
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A spinner, is divided in half, vertically. The right side, is labeled For the spinner below, calculate the expected value. Answer: 1 4 ( − 3 ) + 1 4 ( 10 ) ...
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Mike observed that 75% of the students of a school liked skating. If 35 students of the school did not like skating, the number
N76 [4]

we are given that 35 students do not like skating and that 75 % of the students like skating otherwise. This means 25 % of the students dont like skating. Hence the total number of students is 35/0.25 equal to 140 students. 75 percent of 140 students is the answer equal to 105 students
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3 years ago
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Which of the following are solutions to the equation below 3x^2+27x+54=0
VikaD [51]

Answer:x=6

Step-by-step explanation:Step-1 : Multiply the coefficient of the first term by the constant 1 • 18 = 18

Step-2 : Find two factors of 18 whose sum equals the coefficient of the middle term, which is -9 .

-18 + -1 = -19

-9 + -2 = -11

-6 + -3 = -9 That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -6 and -3

x2 - 6x - 3x - 18

Step-4 : Add up the first 2 terms, pulling out like factors :

x • (x-6)

Add up the last 2 terms, pulling out common factors :

3 • (x-6)

Step-5 : Add up the four terms of step 4 :

(x-3) • (x-6)

Which is the desired factorization

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4 years ago
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A 12-ounce bottle of shampoo lasts Enrique 16 weeks. How long would you expect an 18-ounce bottle of the same brand to last him?
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It will last 24 ......
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ivan and polina have each drawn a conclusion about multiplying negative fractions. Ivan: The products of an even number of negat
vladimir2022 [97]

Answer:

Both are correct

-1 x -1 = 1

-1 x -1 x -1 = -1

Hope this helps

Step-by-step explanation:

4 0
3 years ago
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