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nignag [31]
3 years ago
7

The width of a DNA molecule is about 2.5 nanometers. A nanometer is 0.000000001 meter. Write the width of a DNA molecule in scie

ntific notation.
Mathematics
2 answers:
Molodets [167]3 years ago
8 0

Hey there!!

Scientific notation of 0.000000001 :

0.1 ⁻⁷

Hope it helps!

yarga [219]3 years ago
4 0

Answer: 2.5 \times 10^{-9}

Step-by-step explanation:

Given : The width of a DNA molecule = 2.5 nanometers.

A nanometer = 0.000000001 meter.

In scientific notation it will be

A nanometer = =\dfrac{1}{1000000000}=10^{-9} meter

⇒ 2.5 nanometers= 2.5 \times 10^{-9} meters

Therefore , the width of a DNA molecule =2.5 \times 10^{-9}

We use scientific notation to express a very big or a very small number in the product of a decimal  ( between 1 and 10) and powers of ten.

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She can make 60 bracelets

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A car rental agency advertised renting a car for $ 27.95$27.95 per day and $ 0.27$0.27 per mile. if trevortrevor rents this car
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Provided his $100 budget is for millage only
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What is the answer to this <br>u(2u+5)-4(U+3)​
Yakvenalex [24]

Answer:

its 2u^2-4u+5u-12

Step-by-step explanation:

7 0
3 years ago
Seth has one less than twice the number of compact discs (CDs) that Jason has. Raoul has 53 more CDs than Jason. If Seth gives J
ELEN [110]
S = 2J - 1
R = J + 53
S - 25 = J + 25...S = J + 50

2J - 1 = J + 50
2J - J = 50 + 1
J = 51 <===Jason has 51 CD's

R = J + 53
R = 51 + 53
R = 104 <===Raoul has 104 CD's

S = 2J - 51
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4 0
3 years ago
Yvonne bought a car for $10,300. After 3 years, the value of the car was $6,250. The value of this car decreases exponentially o
Likurg_2 [28]

Answer:

A = $44,778.84

A = P + I where

P (principal) = $10,300.00

I (interest) = $34,478.84 or 12 months

Step-by-step explanation:

Given: Yvonne bought a car for $10,300. After 3 years, the value of the car was $6,250. 50%

To find: In approximately what number of additional months will the value of Yvonne’s car be 50% of the price she originally paid?

Formula: (\frac{interest rate}{number of payments}) × loan principal = interest

Solution:  Divide your interest rate by the number of payments you’ll make in the year (interest rates are expressed annually). So, for example, if you’re making monthly payments, divide by 12. Multiply it by the balance of your loan, which for the first payment, will be your whole principal amount.

(This gives you the amount of interest you pay the first month.)

First, convert R as a percent to r as a decimal

r = R/100

r = 50/100

r = 0.5 rate per year,

Then solve the equation for A

A = P(1 + r/n)nt

A = 10,300.00(1 + 0.5/12)(12)(3)

A = 10,300.00(1 + 0.041666667)(36)

A = $44,778.84

Henceforth:

The total amount accrued, principal plus interest, with compound interest on a principal of $10,300.00 at a rate of 50% per year compounded 12 times per year over 3 years is $44,778.84.

6 0
3 years ago
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