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Kay [80]
3 years ago
12

I really need some explanation cause like I’m confused

Mathematics
1 answer:
LekaFEV [45]3 years ago
7 0

Answer:

85 ft

Step-by-step explanation:

Pythagorean Theorem:

a^{2} + b^{2}  = c^{2}

Where a and b are sides and c is the hypotenuse.

Substitute:

13^{2} + 84^{2} = c^{2}

169 + 7,056 = c^2

7,225 = c^2

\sqrt{7,225}  = \sqrt{c^2}

85 = c

85 feet

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Factor the polynomial.
mixer [17]

Answer:

Final answer is choice B. (5x-2y)^2

Step-by-step explanation:

We need to factor the given expression 25x^2-20xy+4y^2

25x^2-20xy+4y^2

=25x^2-10xy-10xy+4y^2

=5x(5x-2y)-2y(5x-2y)

=(5x-2y)(5x-2y)

=(5x-2y)^2

Hence final answer is choice B. (5x-2y)^2

6 0
2 years ago
Alice borrowed 16700 from the bank at a simple interest rate of 9% to purchase a used car.At the end of the loan,she had paid a
BigorU [14]

Answer:

Step-by-step explanation:

Alice borrowed 16700 from the bank at a simple interest rate of 9% to purchase a used car. It means that the interest is not compounded. Simple interest is usually expressed per annum. The formula for simple is

I = PRT/100

Where

I = interest

P = principal(amount borrowed from the bank)

R = 9% ( rate at which the interest is charged

T = number of years

At the end of the loan,she had paid a total of 24215. This means that the interest + the principal = 24215

Therefore,

The interest = 24215 - 16700 = 7515

Therefore

7517 = (16700 × 9 × t)/100

751700 = 150300t

T = 751700/150300

T = 5 years

Converting 5 years to months,

1 year 12 months

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4 0
3 years ago
Each homeroom must send two student representatives to each student council meeting. Mrs. Lincoln has 15 girls and 10 boys in he
Ierofanga [76]

Answer:

1/4

Step-by-step explanation:

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The probability of choosing one girl is:

15 / 25 = 3 / 5

Now, 24 students are left.

The probability of choosing one boy is:

10 / 24 = 5 / 12

Therefore, the probability of choosing one girl and one boy is:

3 / 5 * 5 / 12

= 3 / 12

= 1/4

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3 years ago
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Find the GCD (or HCF) of numerator and denominator
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8 0
3 years ago
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