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ahrayia [7]
3 years ago
6

If AC = 15 centimeters, and BC = 12 centimeters, which does AB equal

Mathematics
1 answer:
Marat540 [252]3 years ago
4 0

The pythagorean theorem says that a² + b² = c²

You're given the b and the c so substitute the values in: a² + 12² = 15²

a² + 144 = 225; subtract 144 from both sides

a² = 81; square root each side

a = 9, or choice C

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The sum of the areas of two circles is 80 pi
katovenus [111]
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A1 + A2 = 80π
Substitute the formula for the area,
π(r1)^2 + π (r2)^2 = 80π

From the statement, we know that r2=2(r1).

<span>π(r1)^2 + π (2 x r1)^2 = 80π
</span>We can cancel π, we will have

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r1 = 4 and r2 = 8
5 0
3 years ago
There are 32 girls and 18 boys in the chorus. what percent of the students in the chorus are girls?
klio [65]
So the total number of students is 50, and you want to find 32/50. and that is equal to 64%
7 0
3 years ago
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John is at a local bait shop; he wants to buy bait for his fishing trip. At the store, they are selling live bait for $12 a poun
galina1969 [7]

Answer:

x\geq3

12x+7y\leq63

y\geq0

Step-by-step explanation:

If we let x be the amount of live bait and y be the amount of natural bait, Then we can come up with the following inequalities;

We are told that John would like to get at least 3 pounds of live bait. At least 3 means 3 or more. Since x represents the amount of live bait, we have;

x\geq3

Moreover,we are informed that;

The store sells live bait for $12 a pound and natural bait for $7 a pound. x pounds of live bait would cost 12x while y pounds of natural bait would cost 7y. The total cost would thus be;

12x + 7y

but John only has a budget of $63. This implies that he can spend $63 at most, thus;

12x+7y\leq63

Finally we can have our last inequality as;

y\geq0

8 0
3 years ago
Harold move no more than 43 of his sheep and goats into another field. fewer than 22 this animals are goats.
user100 [1]
A is the answer
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8 0
3 years ago
What is the volume of the following triangular prism?
BlackZzzverrR [31]

Answer: 3000cm3

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The area of the triangle is

.5*12*10 = 60

And the height is .5m = 50cm

So the area will be

60*50 = 3000

7 0
3 years ago
Read 2 more answers
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