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Anestetic [448]
3 years ago
12

Select all the expressions that are equivalent to 4−3.

Mathematics
2 answers:
SpyIntel [72]3 years ago
7 0

Answer:

B,C,D are equivalent to 4^-3

Anit [1.1K]3 years ago
4 0

Answer:

B and c and D

Step-by-step explanation:

I think that is the right answer

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Write 52,640 in scientific notation. Please​
DanielleElmas [232]

Answer:

5.264 * 10^4

Step-by-step explanation:

We put a decimal point to the right of the number, so

52640.

Then we move it to the left until we get a number that is between 1 and 10.

5.2640

This was four hops to the left.

We can remove the trailing 0, and write

5.264 * 10^4

10^4 because of the four hops

8 0
3 years ago
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420 ft2 painted in 36 min; f ft2 painted in 30 min<br> (Write the proportion phrase and solve)
PtichkaEL [24]

Answer:420/36 = f/30

f=(30)(420/36)

f=350 sq.ft

Step-by-step explanation: Hope this helps!

5 0
3 years ago
"Gandalf thinks that fighting ability differs between men, hobbits and elves. To test this, he counts the number of orcs kills b
shepuryov [24]

Answer: a one-way ANOVA

Step-by-step explanation:

A One-Way ANOVA Which is also known as the Analysis of Variance is used to compares the means of two or more independent groups in order to determine if there is statistical relationship that is associating both population means are significantly different. A one way Anova test helps determine if the means of two or more groups are different. From the given example the best year to apply would be the one way anova because it would help in determining the difference between the orcs killed by elves, men and hobbits.

5 0
3 years ago
The ages of people entering a pie eating contest are normally distributed with a mean of 35 years and a standard deviation of 8.
ELEN [110]

Answer:

The ages of people entering a pie eating contest are normally distributed with a mean of 35 years and a standard deviation of 8.2 years.

What is the age of a pie eating contestant with a z-score of −2.1 ?

[ Age - 35 ] / [ 8.2]  =  -2.1     multiply both sides by 8.2

Age - 35   =  -17.22       add 35 to both sides

Age  ≈ 17.8  years

I am doing the test right now !!! ;P

3 0
3 years ago
Can someone please help me with this geometry question please.
Irina-Kira [14]

Answer:

x=10/3

Step-by-step explanation:

Vertical angles are congruent and therefore are equal. Just set up an equation where the two angle values are equal to one another and solve with basic algebra.

7 0
3 years ago
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