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slamgirl [31]
3 years ago
12

1 point

Mathematics
1 answer:
Sonbull [250]3 years ago
8 0

Answer:

For the first one, the answer is 20.82

Step-by-step explanation:

you first add 2.65 to 2.56 and then add 5.9 to 5.9 and you add them together and you get 16.92 and then you subtract it from 37.74

also for the second one I don't understand. could you be a little more clear?

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Write the equation of a circle with center (-2, 0) and area = 64 pi
kozerog [31]

Answer:

The required equation in standard form is (x+2)^2+y^2=64

Step-by-step explanation:

The equation of a circle with center (h,k) an radius, r units is given by the formula;

(x-h)^2+(y-k)^2=r^2

The given circle has center (-2,0) and radius squared can be calculated from the given area, which is 64\pi

\pi r^2=64\pi

\implies r^2=64

We substitute these values into the formula to obtain;

(x--2)^2+(y-0)^2=64

We simplify to get;

(x+2)^2+y^2=64

5 0
3 years ago
Read 2 more answers
Tommy must inspect a bridge that goes over a river. He begins 18 feet above water level to inspect the lighting, descends 32 fee
Diano4ka-milaya [45]

Answer:

18 - 32 = -14

-14 - 4 = -18

Step-by-step explanation:

8 0
2 years ago
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Divide. Write the quotient in lowest terms. 3 3/4 ÷ 5/7
olchik [2.2K]

Rewrite 3 3/4 as an improper fraction

3 3/4 = 15/4

Now you have

15/5 / 5/7

When you divide fractions, change the division to multiplication and flip the second fraction over:

15/4 x 7/5

Now multiply the top numbers together and the bottom numbers together:

( 15 x 7) / (4 x 5) = 105/20

Write as a proper fraction:

105/20 = 5 1/4

5 0
2 years ago
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What is the answer for (3+x)^2
Mars2501 [29]
Use:(a+b)^2=a^2+2ab+b^2\\\\(3+x)^2=3^2+2\times3\times x+x^2=9+6x+x^2
4 0
3 years ago
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At the book fair, Vald spends all of his money on new books. Pamela spends
Shkiper50 [21]

Step-by-step explanation:

Lets take Vald spends $100 on the book fair which are all the money he had.

Pamela Spends 2/3 as much as Vald

Pamela Spends 2/3 x 100 = $66.67

Eli Spends 4/3 as much as Vald

Eli spends 4/3 x 100 = $133.33

From here, we can see Eli Spends the most and Pamela Spends the least.

6 0
3 years ago
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