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Stolb23 [73]
3 years ago
14

What is the answer for this -12n - (-13n)=

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
8 0

Answer:

n

Step-by-step explanation:

-12n - (-13n) = -12n +13n = 1n

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Estimate 4704 - 1193 by first rounding each number to the nearest hundred.
kondor19780726 [428]

Answer:

4700 minus 1200 = 3500

Step-by-step explanation:

round 4704 down to 4700 and 1193 up to 1200

8 0
2 years ago
Read 2 more answers
Six to the third power times six to the fourth power in exponential form
Marta_Voda [28]

Answer:

6^7

Step-by-step explanation:

<u>Step 1:  Convert</u>

Six to the third power times six to the fourth power.

6^3 * 6^4

6^(^3^+^4^)

6^7

Answer:  6^7

3 0
3 years ago
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If Justin can type 408 words in 4 minutes, how many words can he type per minute?
Pavel [41]

Answer:

102

Step-by-step explanation:

408 words / 4 min = 102 words per min

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3 years ago
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A hiker walks at a speed of 3 2/5 km per hour. how many km will he walk in 3/4 of an hour
Art [367]

Answer:

2.55

Step-by-step explanation:

6 0
3 years ago
A circle is defined by the equation x2 + y2 + 8x + 22y + 37 = 0. What are the coordinates for the center of the circle and the l
inn [45]
We can say that:
8x = -2ax
8 = -2a
a = -4

22y = - 2by
22 = -2b
b = -11

37 = a² + b² - r²
37 = (-4)² + (-11)² - r²
r² = 16 + 121 - 37
r² = 100
r = 10

With all this information, we can say that:
The center of the circle is: (-4 ; -11)
and the radius of the circle is r = 10

P.S:
(a - x)² + (b-y)² = r²
a² - 2ax + x² + b² -2by + y² - r² = 0
x² + y² -2ax - 2by + a² + b² - r² = 0

6 0
3 years ago
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