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Aleonysh [2.5K]
3 years ago
5

Comparing Order of Magnitude A biologist estimated the number of cells in a culture sample as 1.3 × 102. One week later, he look

ed at the same culture sample and estimated that the number of cells had grown to 3.9 × 105. Determine how many times larger the culture sample was compared to a week earlier. (3.9 × 105) (1.3 × 102) Complete the quotient in scientific notation and find the solution in standard notation. × =
Mathematics
2 answers:
Assoli18 [71]3 years ago
4 0

Answer:

3 * 10^3 in scientific notation.

3,000 in standard notation.

Step-by-step explanation:

We divide:

3.9 *10^5 / 1.3 * 10^2

= ( 3.9/1.3) * (10^5 / 10^2)

= 3 * 10(5-2)

= 3 * 10^3.

This  equals 3 * 1,000 = 3000.

Degger [83]3 years ago
4 0

Answer:

the answer is 3 10 to the third power and 3,000

Step-by-step explanation:

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I ordered 2000000 chicken nuggets and 500000 pounds of Mac and cheese how much chicken nuggets and Mac and cheese do i have all
Triss [41]

Answer:

well first of all whoever is eating that finna get high levels of cholesterol  also you have 2500000 pounds of MAC and cheese and chicken nuggets all together

5 0
3 years ago
Read 2 more answers
Identify the number of decimal places in each factor.
const2013 [10]

Answer:

no

Step-by-step explanation:

4 0
3 years ago
Use synthetic division to solve (2x3+4x2 – 35x+15) +(x-3). What is the quotient?
lesya692 [45]

Given:

(2x^3+4x^2-35x+15)\div (x-3)

To find:

The quotient by using the synthetic division.

Solution:

We have,

(2x^3+4x^2-35x+15)\div (x-3)

Here,

Dividend = (2x^3+4x^2-35x+15)

Divisor = x-3

The coefficient of dividend are 2, 4, -35, 15. Write the coefficients of the dividend on the top row and we need to use 3 as divisor for synthetic division. The synthetic division is show below:

3 | 2\quad \quad 4\quad \quad -35\quad \quad 15\\\quad{}\quad{} \quad \quad \ 6\quad \quad \ \ \ 30\quad  -15\\\overline{\quad 2\quad \quad 10\quad \quad -5\quad \quad 0\ \ \ }

The bottom row represents the coefficients of quotient but the last element of bottom row is the remainder.

Degree of dividend is 3 and degree of division is 1. So, the degree of quotient must be 3-1=2.

The quotient is 2x^2+10x-5 and the reminder is 0.

Therefore, the correct option is D.

3 0
3 years ago
translate into an algebraic expression: b is decreased by 40% and decreased again by 40% . What is the result ?
MrMuchimi

Answer:

The result is 0.36b

Step-by-step explanation:

Here. we want to translate the wordings into an expression of algebra.

Firstly, we decrease b by 40%

40% is same as 40/100 = 0.4

So decreasing b by 40% = b-0.4(b) = b-0.4b = 0.6b

Now we want to decrease 0.6b by another 40%

= 0.6b -0.4(0.6b)

= 0.6b - 0.24b

= 0.36b

6 0
3 years ago
Use the discriminant and select whether the roots of 5x 2 - 4x + 3 = 0 are real or non-real. real
valkas [14]
The discriminant of a quadratic equation is calculated through the equation,
                                   D = b² - 4ac 
In the given above, a = 5, b = -4, and c = 3. Substituting these values to the equation,
                                   D = (-4)² - 4(5)(3) = -44
Since the discriminant is negative, the roots are non-real.
3 0
4 years ago
Read 2 more answers
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