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Aliun [14]
3 years ago
8

Factor the following expression: x^2-4x+5

Mathematics
1 answer:
frozen [14]3 years ago
3 0

(x-1) (x+5)

Step-by-step explanation:

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How do you write 78,621,087 in expanded notation and expanded form?
Inga [223]
70,000,000+8,000,000+600,000+20,000+1,000+80+7 = 78,621,087
4 0
3 years ago
Bernice estimated that 69% of 242 is 168. Is her estimate reasonable?
ycow [4]
Her estimate is not reasonable.

Since she estimated 69%, you could do either of these options. You could...
A. Divide 242 (or .5) to show how much half off would be, then compare her estimate with half of 242 (121). OR...
B. Simply divide 242 by 69% (.69) and compaor her estimate to the exact amount (166.98).

I hope this helps!
6 0
3 years ago
Please help!!!!!!!!!!!!!!!!!!!!!
3241004551 [841]

Answer:

C and D

Step-by-step explanation:

1

The arc length is calculated as

arc = circumference of circle × fraction of circle

     = 2πr × \frac{60}{360}

     = 2π × 10 × \frac{1}{6} = \frac{20\pi }{6} = \frac{10\pi }{3} cm → C

-----------------------------------------------------

2

The area (A) of a sector is calculated as

A = area of circle × fraction of circle

   = πr² × \frac{60}{360}

   = π × 10² × \frac{1}{6} = \frac{100\pi }{6} = \frac{50\pi }{3} cm² → D

6 0
2 years ago
What percent of the dogs and cats sold were dogs? a 70% b 22% c 55% d 45%
denis23 [38]
This gives no information, how many of each were sold
8 0
2 years ago
Read 2 more answers
Pythagorean Theorem:a2 + b2 = c2 Re−write the formula solving for b2 .
gulaghasi [49]

Answer: c2 - a2 = b2

Step-by-step explanation: to isolate b2 you have to subtract a2 from both sides to get c2 - a2 = b2

6 0
3 years ago
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