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fomenos
2 years ago
12

Show the tens fact you used. Write the difference. 12-7= 10- _=

Mathematics
1 answer:
Maksim231197 [3]2 years ago
5 0

12-7=5

10-5=5


is that what you where looking for?

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Simplify √18<br><br><br> A. 2√3<br> B. 2√9<br> C. 3√2<br> D. 9√2
fiasKO [112]
C

Explanation: Rewrite 18 as 3^2 * 2

REASON: Factor 9 out of 18
Rewrite 9 as 3^2


Pull terms out from under the radical

Answer: 3√2
5 0
3 years ago
Hello, could you help me with my math exercise? thank you in advance
Natali [406]

Answer:

100(x - 1)

Explanation:

Let's begin writing down everything

(X×(-11)+5)×(-9)+X-55

Now we can multiply

-9(-11X+5)+X-55

99X-45+X-55

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4 0
3 years ago
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What is the area of a semicircle whose perimeter is 72cm
Nuetrik [128]

Answer:

A = 307.9 sq/cm

Step-by-step explanation:

Find the radius of the semi-circle

diameter + half the circumference = 72 cm

2r + pi*r = 72

r(2+pi) = 72

 

r = 72%2F%28%282%2Bpi%29%29

r = 14

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what will be the area of that semicircle?

A =1%2F2*pi%2A14%5E2

A = 307.9 sq/cm

7 0
3 years ago
Find the midpoint of the line segment between the points (11, -5) and (-3, -7)
alexdok [17]

Answer:

(4, -6)

Step-by-step explanation:

(x1+x2)/2 + (y1+y2)/2 = midpoint

(11+-3)/2 = 8/2 = 4.     x = 4

(-5 + -7)/2 = -12/2.      y = -6

4, -6 is the midpoint

give brainliest please! hope this helps :)

4 0
1 year ago
What is the greatest common factor of 3x^4, 15x^3, and 21x^2?
crimeas [40]

Answer:

3x

Step-by-step explanation:

5 0
3 years ago
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