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Kisachek [45]
3 years ago
10

HELP MIDDLE SCHOOL QUESTION WILL GIVE BRAINLIEST! PLEASE

Mathematics
1 answer:
SashulF [63]3 years ago
7 0
The correct thing is A
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A psychologist thinks that listening to Mozart helps people think. She gives subjects a set of puzzles and measure how many they
BigorU [14]

Answer: 0.8

Step-by-step explanation:

Let's assume that 5 puzzles were solved in 5mins. That is, 1min for each puzzle to be solved.

From our assumption, our sample size will be 5.

The probability that a subject will solve more than 1 puzzle will be number of occurrence from 2 to 5 which is 4.

This gives: 4/5 = 0.8 to one decimal place.

4 0
4 years ago
X^2 + x^2=6^2 what is x​
nikitadnepr [17]

Answer:

x = ±3 sqrt(2)

Step-by-step explanation:

x^2 + x^2=6^2

Combine like terms

2x^2 = 6^2

Divide each side by 2

x^2 = * 6^2/2

Take the square root of each side

sqrt(x^2) =± sqrt(  6^2/2)

Remember that sqrt(a/b) = ±sqrt(a ) /sqrt(b)

x = ±sqrt(6^2)/sqrt(2)

x = ±6 /sqrt(2)

We do not leave square roots in the denominator, so we multiply the top and bottom by sqrt(2)

x = ±6 /sqrt(2) * sqrt(2)/ sqrt(2)

x = ±6 *sqrt(2) /( sqrt(2)*sqrt(2))

x =  ±6 sqrt(2) /(2)

x = ±3 sqrt(2)

5 0
4 years ago
Read 2 more answers
What is the solution set for 5x−5=15, given the replacement set {0, 1, 2, 3, 4}?
True [87]

Answer:

x=4

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is the simplified form of the square root of 80?
djyliett [7]
\sqrt{80} =  \sqrt{2 * 2* 2* 2* 5}  =  \sqrt{2^{2}*2^{2}*5}  = 2*2* \sqrt{5} = 4 \sqrt{5}
Hope this helps.
3 0
4 years ago
How many times can can 93 go into 784?
lyudmila [28]
784/ 93 = 8.43010752688
93 * <span>8.43010752688 = 784</span>

8 0
3 years ago
Read 2 more answers
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