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3 years ago

2.310^8+4.710^7 Express answer in scientific notation.

Mathematics

1 answer:

juin [17]3 years ago

6 0

Answer:

2.3 * 80 + 4.7 * 70

Step-by-step explanation:

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Find the area of the square in inches2 and enter your answer below. Do not include units in your answer.

saveliy_v [14]

Answer:

11.56

Step-by-step explanation:

The area formula is just Length * Height. Since this shape is a square, both the length and height are equivalent to the same thing, 3.4. So, all we have to do is multiply 3.4 * 3.4, or we can do 3.4^2.

3 0

2 years ago

The number of bacteria in a certain culture doubled every hour. If there were 30 bacteria present in the culture initially, how

vichka [17]

Answer:

The number of bacteria after $8th$ will be $3840$

Step-by-step explanation:

Given the initially 30 bacteria present in the culture.

Also, the number of bacteria got doubled every hour.

So, using the equation

$A=A_0r^{n-1}$

Where $A$ is number of bacteria after $n$ hours.

$A_0$ is bacteria present initially.

$r$ is the common ration, in our problem it is given that bacteria doubles every hour. So, $r=2$

And $n$ is the number of hours. In our problem we need amount of bacteria at the end of $8th$ hours. So, $n=8$

Plugging values in the formula we get,

$A=30(2)^{8-1}\\A=30\times 2^7\\A=30\times 128\\A=3840$

So, number of bacteria after $8th$ will be $3840$

3 0

3 years ago

What is 34/40 in simplest form

vampirchik [111]

Answer: 17/20

<u>Divide</u>

34/40 ÷ 2/2 = 17/20

Divide each side by 2 so it'll be 2/2.

6 0

3 years ago

Read 2 more answers

2 2/4 devided by 1/6

lara31 [8.8K]

(15 is your answer)

Divide numerator by denominator, cancel out any common factors

5 0

3 years ago

MODELING WITH MATHEMATICS The fire escape forms a right triangle, as shown. Use the Pythagorean Theorem to approximate the dista

anastassius [24]

Answer:

$x = 14.13ft$

Step-by-step explanation:

Given

See attachment for illustration

Required

Find x

To do this, we apply Pythagoras theorem.

From the attachment, the length of the hypotenuse is 16.7ft

While the length of the opposite/adjacent is 8.9ft

Length x is calculated using:

$16.7^2 = 8.9^2 + x^2$

$x^2 = 16.7^2 - 8.9^2$

$x^2 = 199.68$

Take square roots

$x = \sqrt{199.68$

$x = 14.13ft$

5 0

3 years ago

2.3*10^8+4.7*10^7 Express answer in scientific notation.

2.310^8+4.710^7 Express answer in scientific notation.