Is 5.1 x 10^-8 in scientific notation?

Answers

Answer 1
Answer: Yes, it's in scientific notation.

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Okay so I'm struggling at this particular set of questions on Khan Academy. Anyone got any ideas?

Answers

my best guess is 135 because if it can fit cubes with 1/4 inch sides, that means it can fit 9 cubes going lengthwise, and 3 cubes wide which is 27 cubes on the base. then it can fit 5 cubes, all 1/4 inch going up because in 1 1/4 inch there are 5 quarter inches. so if you multiply 27 by 5 you get 135. I hope that helps a little bit:)

I know this is not much help but I wrote all my work down and got 135 as well so I’m glad you got the correct answer. You will struggle sometimes, especially with challenging questions like that but remember it will always get easier as you go alone((: good luck to you!

Katie ordered candles that cost $3 each from a website. She was charged a flat shipping fee of $6 and no sales tax. If she spent a total of $54, which equation can be used to find c, the number of candles she ordered?A. 3c = 54

B. 6c = 54

C. 3c + 6 = 54

D. 3c – 6 = 54

Answers

Answer:

Equation can be used to find  the number of candles (c) Katie ordered is 54 = 3c + 6 .

Option (C) is correct .

Step-by-step explanation:

As given

Katie ordered candles that cost $3 each from a website.

She was charged a flat shipping fee of $6 and no sales tax.

If she spent a total of $54,

c represented the number of candles .

Equation becomes

Total cost = Cost per candle + Flat shipping fee

54 =  3 × c + 6

54 = 3c + 6

Equation can be used to find  the number of candles (c) Katie ordered is 54 = 3c + 6 .

Option (C) is correct .

         

Answer:

C:3c + 6 = 54

Step-by-step explanation:

took the test

;)

4x-8=12 x= How do I find x? And what is it?

Answers

Answer:

x=-1

Step-by-step explanation:

4x-8=12x

4x=12+8

4x-12=8

-8x=8

-8x/-8= 8/-8

x=-1

Simplify 20 + (2 + r).

Answers

the answer is 22+r
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Solve for a and b
(6a-3)=(7b-10)

Answers

Answer:

for A=(7b-7)/(6) and for B=(6a+7)/(7)

Step-by-step explanation:

For A

\left(6a-3\right)=\left(7b-10\right)

6a-3+3=7b-10+3

6a=7b-7

(6a)/(6)=(7b)/(6)-(7)/(6)

a=(7b-7)/(6)

For B

\left(6a-3\right)=\left(7b-10\right)

7b-10=\left(6a-3\right)

7b-10=6a-3

7b-10+10=6a-3+10

7b=6a+7

(7b)/(7)=(6a)/(7)+(7)/(7)

b=(6a+7)/(7)

Find the unknown marked angles​

Answers

30° I think.........