MATHEMATICS MIDDLE SCHOOL

HELP I WILL GIVE BRANLIEST AND 15 POINTSWhich of the following expressions is correctly written in scientific notation?
A.1.4 × 105
B.0.32 × 103
C.5.62 × 210
D.11.2 × 101

Answers

Answer 1
Answer:

A. 1.4 × 10^(5) is written correctly in scientific notation


0.32 × 10^(3)  needs to be 3.2 × 10^(2)

5.62 × 21^(0) is just wrong its always × 10

11.2 × 10^(1) needs to be 1.12 × 10^(2)


There is always 1 number before the decimal and that number is always greater than 0 and the number after × is always 10
Answer 2
Answer:

Answer:

A 1.4 × 105

Step-by-step explanation:

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Answers

Area= length× width 240=16×_ Do 240÷16=15 So it is 15 feet

How I solve x*x
Please help
1) 2x
2) x^2
3) x(x+2)
4) x+2

Answers

It would be 2) x^2.

In this question, if you are having trouble, we could replace x with a number.

For example, x=5. Then, it would be 5 × 5 or 5^2.

Answer number 11 please

Answers

I always like to use money as an example. So for example, you have $22.00 and need to split it up between 4 friends, you would need to divide that money by 4 to figure out how much each person gets.

Hope this helps :)

Which is the solution to the inequality 1/4+x<5/8

Answers

Answer:

x<3/8

Step-by-step explanation:

1/4+x<5/8

x<5/8-1/4

x<5/8-2/8

x<3/8

Brianna measured the length of her room as 2.4 meters. How is this length expressed in centimeters?

Answers

the answer is 240 centimeters

Answer:

240cm

Step-by-step explanation:

Alex is thinking of a doubles fact the sun is greater than the sum 7+7 but less than the sum of 8+9. What fact is Alex thinking of?

Answers

15 is your answer, because 7+7=14 and its greater then 14 but less then 8+9 which = 16. 
9+8=17not 16 so the answer could be either 15 or 16
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