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Vitek1552 [10]
4 years ago
14

Help me out please :)

Mathematics
1 answer:
Veseljchak [2.6K]4 years ago
4 0

Answer: -6 is the answer

Step-by-step explanation:

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in a class of 14 boys and 12 girls one of the student is picked in a random what is the probability that the student is a girl​
poizon [28]

Step-by-step explanation:

Total number of students =14+12

=26

Probability that a student is a girl

=  \frac{number \: of \:girls}{total \: number \: of \: students}  \\  =  \frac{12}{26}  \\  =  \frac{6}{13}  \\ therefore \: the \: probability \: that \:  \\ a \: student \: is \: a \: girl \:  \\  =  \frac{6}{13}

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3 years ago
Cho is making a rectangular garden, where the length is x feet and the width is 2x + 8 feet. He wants to add garden stones aroun
zmey [24]

Answer:

38 feet

Step-by-step explanation:

P(x) = ℓ(x) + ℓ(x) + w(x) + w(x)

      = x + x + (4x - 1) + (4x - 1)

      = (x + x + 4x + 4x) + (-1 -1)

      = 10x - 2

P(4) = 10(4) -2 = 38

The perimeter is 38 feet when the length is 4 feet long, so Cho will need to

cover 38 feet with garden stones.

6 0
3 years ago
Help me please! Only if you can!
VladimirAG [237]

Answer:

Theta =  120 degrees, 420 degrees, 480 degrees, 780 degrees, and 840 degrees

60 + 360 = 420 degrees,  

60 + 720 = 780 degrees,  

120 + 360 = 480 degrees,

120 + 720 = 840 degrees

Step-by-step explanation:

90  to 870 degrees for theta.

sin (theta) = root(3) /2

We see this comes from a 30-60-90 triangle.

theta is 60 degrees

but we want theta from 90 to 870 degrees.

120 degrees works too.

so we try to find all the co-terminal angles to 60 and 120 degrees that satisfy the conditions.

60 + 360 = 420 degrees,  

60 + 720 = 780 degrees,  

120 + 360 = 480 degrees,

120 + 720 = 840 degrees

7 0
4 years ago
A concession stand vendor counts the money in the register. after 2 h it has $82.75. after 6 h is has $ 360.75. how much money w
Volgvan
I believe the answer would be c. $499.75. If you take (360.75-82.75)/(6-2) you get 278/4 which is dollars/hour, and that =69.5 so the rate of increase is $69.50 per hour, therefore if 6 hours produced $360.75 then you +$69.50•2(hours) and get $499.75
4 0
3 years ago
Which phrase describes an unknown or changeable quantity
Scorpion4ik [409]
The number of colors on the page, it’s doesn’t specify the number.
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4 years ago
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