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igomit [66]
3 years ago
6

There are

Mathematics
2 answers:
Gala2k [10]3 years ago
8 0

Answer:

the boys percentage of getting picked are 63% while the girls are 38%

Step-by-step explanation:

Tpy6a [65]3 years ago
4 0

Answer:

There is a 62.5% chance that a presenter will be a boy.

Step-by-step explanation:

Divide the number of boys by the number of total students. Like when you find a percentage on a test.

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Factorising quadratics <br><br> All questions please to be completed. I’m stuck.
Alex777 [14]

Answer:

1. (x +1)(x - 1)

2. (x+5)(x-5)

3. (x+12)(x-12)

4. (x+14)(x-14)

5. (x+5)(x-7)

Step-by-step explanation:

The first 4 expressions can be factored with the difference of squares type of factoring.

For #5, the odd one out is (x+5)(x-7) because it isn't a factor of any of the standard form equations, while the others are

5 0
3 years ago
What is division story problem where the dividend is a three-digit number and the divisor is a single digit.
nasty-shy [4]

Answer:

dddddddddv

Step-by-step explanation:

8 0
3 years ago
What is x - 3(1-x) = 47 - x
lozanna [386]

Solve for x by simplifying both sides of the equation, then isolating the variable.

x = 10

7 0
3 years ago
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
yan [13]

Answer:

  138.16 in²

Step-by-step explanation:

The surface area SA of the cone is the sum of the base area B and the lateral area LA. The lateral area is half the product of the circumference and the slant height. The radius is half the diameter, so is 4 inches.

  SA = B + LA

  = πr² + (1/2)(2πrh) . . . . where h is the slant height

  = (πr)(r +h)

Filling in the numbers, you have ...

  SA = (3.14)(4 in)(4 in + 7 in) = 3.14×(44 in²) = 138.16 in²

7 0
3 years ago
What is the value of the discriminant for the quadratic equation -3=-x 2+2x
seraphim [82]
X=3,-1 your answer is right here
3 0
3 years ago
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