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3 years ago

14

Each hour, the number of bacteria in Dr. Nall's petri dish tripled. What percent is the population compared to the population th

e hour before?

2 answers:

Cerrena [4.2K]3 years ago

8 0

Answer:

The answer is D hope this helps

Step-by-step explanation:

bagirrra123 [75]3 years ago

4 0

Answer:THE ANSWER IS

300% PLEASE BRAINEST ME!

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Heeelp<br> the first choices are linear or non linear<br> the second is increasing or decreasing

slega [8]

It’s non linear and it’s decreasing

5 0

3 years ago

(3x+14)° measurement in degrees a.20.00° b.40.25° c.42.50° d.74.00°

Marysya12 [62]

Answer:

B

Step-by-step explanation:

4 0

2 years ago

I don’t get this one please HELPPP MEE

iren2701 [21]

Answer:

135

Step-by-step explanation:

The given expression is

$\frac{2 {x}^{2} }{x} +x(100 - 15x)$

From the question, x=5

So,by substitution,we obtain

$=\frac{2({5}^{2})}{5} +5(100 - 15(5))$

$=\frac{2(25)}{5} +5(100 - 75))$

$=2(5)+5(25)$

$= 10+125$

$= 135$

Hence the answer is 135

8 0

3 years ago

Find the slope of the line going through the points (0, -5) and (-2,1)

kvasek [131]

Answer:

$\displaystyle m=-3$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Algebra I</u>

Coordinates (x, y)
Slope Formula: $\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

<u>Step 1: Define</u>

Point (0, -5)

Point (-2, 1)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>

Substitute in points [Slope Formula]: $\displaystyle m=\frac{-5-1}{0--2}$
[Fraction - Denominator] Simplify: $\displaystyle m=\frac{-5-1}{0+2}$
[Fraction - Numerator] Subtract: $\displaystyle m=\frac{-6}{0+2}$
[Fraction - Denominator] Add: $\displaystyle m=\frac{-6}{2}$
[Fraction] Divide: $\displaystyle m=-3$

8 0

2 years ago

I need help with this ... I don't get it

Ahat [919]

<span>1. </span>The volume is comprise of a cube and prism

V = ( x + 2) ( 2x + 4) + ( x + 2)^2

Solve for x

X = 10.12

<span>2. </span>1050 = (2x – 4) ( 3x) 5

1050 = (2x – 4) 15x

1050 = 30x^2 – 60x

Solve for x

X = 7

<span>3. </span>148 = ( x – 5) ( x – 6 ) ( x – 4)

Solve for x

X = 10.35

<span>4. </span>144pi = pix^2(21)

X = 2.62

4 0

3 years ago