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Dmitrij [34]
3 years ago
9

SOMEONE KNOW THIS, IS STUDY ISLAND

Mathematics
1 answer:
Tems11 [23]3 years ago
7 0

Answer:

the option are A.

92.4%

B.

7.6%

C.

91.8%

D.

8.2%

Step-by-step explanation:

Think of it what times 61 will equal 66....

     61 () = 66

     (?%) = 66 /61

     (?) = 1.08196   

so now it gets tricky get the percentage increase correct

based on the given answer choices I'ld say it is D

     % increase = (1.08196 - 1) (100)          Why the subtraction of one? ?

                        = 8.196%

                        = 8.2 %

   

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tangare [24]
He has a total of 40

$40-$5-$15=$20

he has a total of $20 left

mark brainliest
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3 years ago
see i don't mind giving my points away..Can anyone help me solve this though for a brainlest and extra points?​
victus00 [196]

Answer:

a=17\sqrt{2}

Step-by-step explanation:

As we have 2 of the angles, we can find the third. The measure of the third angle is 45 degrees.

As this is the same measure as the other, that means that the side length will be the same.

Now was have two side lengths of 17 in a right triangle, so we can use the Pythagorean theorem to find a.

Recall that the pythagorean theorem states: a^2+b^2=c^2

In this case, a is 17, b is 17, and c is a

Knowing this, we can input our value into this formula and solve for a.

17^2+17^2=a^2\\\\289+289=a^2\\\\a=\sqrt{578} \\\\a=17\sqrt{2}

6 0
3 years ago
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Toru takes his dog to be groomed. The fee to groom the dog is $75 plus 7% tax. Is $80 enough to pay for the service? Explain.
weqwewe [10]
80$ won't be enough to pay
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3 years ago
Multiplying polynomials answer to (a + 3)(a - 2)
LenKa [72]

Answer:

a^2+a-6

Step-by-step explanation:

i have attached your answer

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2 years ago
Given f(x) = 3x + 1, solve for x when f(x) = 7.
irakobra [83]

Answer:

f(7) = 22 or x =2

Step-by-step explanation:

  1. f(x) = 3x + 1
  2. f(7) = 3(7) + 1
  3. f(7) = 21 + 1
  4. f(7) = 22

<u>Or if the equation meant it like this:</u>

  1. f(x) = 3x + 1
  2. 7 = 3x + 1
  3. 6 = 3x
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3 years ago
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