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2 years ago

7

9.2×10 5 bacteria are measured to be in a dirt sample that weighs 11 grams. Use scientific notation to express the number of bac

teria that would be in a sample weighing 10 10 grams.

1 answer:

Minchanka [31]2 years ago

4 0

Answer: 10 to the 10th power

Step-by-step explanation:

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A rectangular field is 450 meters long and 300 meters wide. What is the area of the field in square kilometers?

rodikova [14]

First you multiply 450 m ×300 m= 135,000 m
Then you convert to Kilometers 135,000 ÷1,000= 135 Kilometers

So the answer is 135 Kilometers

7 0

3 years ago

Express 24.357 in words.<br> Write the expanded form using fractions or decimals.

Lelechka [254]

Answer:

Twenty-four and three hundred fifty-seven thousandths.

Step-by-step explanation:

The expanded form of 24.357 in decimals is 24.3757 because it is already in it's decimal form.

The expanded form of 24.357 in fractions is 24.357. It is a fraction in decimal form rather than in the form of a ratio. However, that does not stop it being a fraction: $\frac{24357}{1000}$ .

4 0

3 years ago

Question: -2 - (-4)

Sergeeva-Olga [200]

Answer:

<h2>2</h2>

Step-by-step explanation:

Follow PEDMAS

$-2 - (-4)$

Follow rule : -(-a)= + a

$- 2 + 4 \\ = 2$

5 0

3 years ago

Read 2 more answers

To solve the system of equations below, Pedro isolated the variable y in the first equation and then substituted it into the sec

Reil [10]

Answer:

Resulting equation will be 5x²=36.

Step-by-step explanation:

The given equations are 5y = 10x-----(1)

and x²+y²=36------(2)

Now we substitute the value of y from equation (1) into equation (2).

5y = 10x ⇒ y = 2x

Then equation (2) will be x²+(2x)²=36

x²+4x²=36 ⇒ 5x² = 36

So the equation after substitution of the value of y from equation 1 will be 5x² = 36.

8 0

3 years ago

Read 2 more answers

Which equation is an equation of a circle with radius of 10 cm and center at (-3, 6)?

Musya8 [376]

The equation for a circle is
(x-h)^2 + (y-k)^2 = r^2
(-3,6)
-3 is h
6 is k

(x+3)^2 + (y-6)^2 = 10^2
10^2 = 100

(x+3)^2 + (y-6)^2 =100
The answer is B!

7 0

3 years ago