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elena55 [62]
3 years ago
12

Fill in the bubble next to all the doubles facts you could use to fined the sum of 4+5

Mathematics
1 answer:
lutik1710 [3]3 years ago
7 0
4+4 hope this helps you out :)
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2(x + 4)2 = 20 solve by square roots
DanielleElmas [232]

Answer:

x =  − 4  ±  √ 10,

Step-by-step explanation:

2(x + 4)² = 20

=> 2(x + 4)  (x + 4) = 20

=> 2x + 8 (x + 4) = 20

=> 2x² + 8x + 8x + 32 = 20

=> 2x² + 16x + 32 = 20

=> 2x² + 16x + 12 = 0

=> Now solve using the quadratic formula:

x =  − 4  ±  √ 10,

Radical form: − 4  ±  √ 10,

Decimal form: -0.84, -7.16

Hope this helps!

5 0
3 years ago
The NFL office discovered data covering attendance at professional football games in the late 1940s and early 1950s. The game wi
alekssr [168]

Answer:

option B

Step-by-step explanation:

Regression models are not usually made use of if the need is to predict population, which has to do with number present as well as the stocks of large companies and so on, reason being that their variable levels or confidence interval are usually out of range of those used for a regression

8 0
3 years ago
What is the radius of 8km
lorasvet [3.4K]

Answer:

The radius is 4 because since the diameter is 8, the radius is half of the diameter.

8 0
3 years ago
Read 2 more answers
I need help with this problem y=5x-3
defon

Answer:

Slope= 5

y intercept= (0,-3)

Step-by-step explanation:

3 0
3 years ago
plz help im stuck on it. caterers are planning to use 5 pounds of salad greens with 1/3 pound of greens in each salad how many s
sweet [91]
I believe the most logical answer would be is to divide so us the kcf method keep change flip so 5 stays the same then change division into multiplication then flip the fraction 1/3 into 3/1 so now we have 5  times 3 is 15
7 0
2 years ago
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