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stellarik [79]
3 years ago
14

(4+5)²-(-2)²×(13+7) ayúdenme es para hoy​

Mathematics
2 answers:
ser-zykov [4K]3 years ago
8 0
(9)^2 - (-4) • (20)
81 - (-80)
161
ExtremeBDS [4]3 years ago
7 0
The answer is 1 i think
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What mistake did he likely make?
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6 0
3 years ago
Share 4000 in a ratio 3:4:1​
muminat

Answer:

3/8 x 4000 = 1500

4/8 x 4000 = 2000

1/8 x 4000 =500

7 0
3 years ago
Read 2 more answers
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Gnesinka [82]

Answer:b

Step-by-step explanation:

8 0
3 years ago
Suppose a hypothesis test for a population mean is correctly conducted and the decision is made to not reject the null hypothesi
ArbitrLikvidat [17]

Answer: B) type II error

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The level of significance (α) usually takes the lower percentage of the area of distribution.

When you reject the null hypothesis instead of accepting it, you commit a type I error, the probability of committing this error is the level of significance (α).

When you accept the null hypothesis when you are suppose to reject it, you commit a type II error and the probability of committing this error is confidence level (β) which is (1- α)

3 0
3 years ago
Yasmine earns $54 for dog walking. She walks her neighbors dog 12 times.
Paha777 [63]

Answer:

$4.5

Step-by-step explanation:

If the total price Yasmine earns was $54 and she walked her neighbors dog 12 times then we need to divde them.

54/12

= $4.5  So she earns $4.5 every time she walks her neighbors dog

4 0
4 years ago
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