All categories

3 years ago

Write 7x10^-8 in standard form

Mathematics

2 answers:

dexar [7]3 years ago

8 0

Hey there! I'm happy to help!

Standard form is just writing this without the multiplication sign. If you multiply a number by 10 to a negative number, \you take the number in the negative exponent and move the decimal to the left that many times. In our case, we move it to the left 8 times.

If we move the decimal to the left 8 times, we have 0.00000007.

I hope that this helps! :D

attashe74 [19]3 years ago

6 0

Answer:

The answer would be 0.00000007

You might be interested in

3. In a single growing season at the Smith Family Orchard, the average yield per apple tree is 150 apples when the number of tre

g100num [7]

Answer:

A.10000

B.25 more trees must be planted

Step-by-step explanation:

⇒Given:

The intial average yield per acre $y_{i}$ = 150

The initial number of trees per acre $t_{i}$ = 100

For each additional tree over 100, the average yield per tree decreases by 1 i.e , if the number trees become 101 , the avg yield becomes 149.
Total yield = (number of trees per acre) $*$ (average yield per acre)

A.

⇒If the total trees per acre is doubled , which means :

total number of trees per acre $t_{f}$ = $2*t_{i}$ = 200

the yield will decrease by : $t_{f}$ - $y_{i}$

$y_{f}= 150-100= 50$

⇒total yield = $50*200=10000$

B.

⇒to maximize the yield ,

let's take the number of trees per acre to be 100+y ;

and thus the average yield per acre = 150 - y;

total yield = $(100+y)*(150-y)\\=15000+50y-y^{2} \\$

this is a quadratic equation. this can be rewritten as ,

⇒ $=15000+50y-y^{2}\\=15000+625 - (625 - 50y +y^{2})\\=15625 - (y-25)^{2}$

In this equation , the total yield becomes maximum when y=25;

⇒Thus the total number of trees per acre = 100+25 =125;

3 0

3 years ago

In a seafood stew, Erin wants to use lobster, crab, and shrimp. She wants one part lobster, two parts crab, and three parts shri

alukav5142 [94]

Answer:

Answer: (B) 3

Step-by-step explanation:

20x + 15(2x) + 10(3x) = 40

20x + 30x + 30x = 40

80x = 40

x = 40/80

x = 1/2

Find the amount of lobster

Lobster = x = 1/2 pound

Find the amount of crab:

Crab = 2x = 2(1/2) = 1 pound

Find the amount of Shrimp:

Shrimp = 3x = 3(1/2) = 3/2 pounds

Find the total pounds of seafood:

Total = 1/2 + 1 + 3/2 = 3 pounds

Answer: (B) 3

6 0

3 years ago

Ewen has 48 whistle tiles and 16 blue tiles the cost of each white tile was £2 and the cost of each blue tile was £4 Work out th

AnnZ [28]

Answer:

3:2

Step-by-step explanation:

Ewen has 48 white tiles and 16 blue tiles

The cost of each white tile was £2

The cost of each blue tile was £4

Therefore the total cost of 48 white tiles is

= 48×2

= £96

The total cost of 16 blue tiles is

= 16×4

= £64

The ratio of the total cost of the white tiles and blue tile can be calculated by dividing the cost of both tiles by their greatest common factor

The greatest common factor of £96 and £64 is 32

96/32 = 3

64/32= 2

Ratio= 3:2

Hence the ratio of the total cost of the white tiles to the blue tiles is 3:2

6 0

3 years ago

A number line going from 0 to 1. StartFraction 5 Over 6 EndFraction is labeled on the line. Luke has a board 5 6 of a yard long.

Scorpion4ik [409]

Answer:

1/6 <3

Step-by-step explanation:

5/6 divided by 5

6 0

3 years ago

Evaluate the expression below. 15 ÷ (5 - 2) + 4 =

lana [24]

Answer:

Step-by-step explanation:

This is an order of operations question. First in PEMDOS you want to do your parenthesis, turn (5-2) into 3,

15 ÷ 3 + 4

Then do your divison, turning 15 ÷ 3 into 5

5 + 4

Then finish with 5 + 4

The answer is 9

3 0

2 years ago