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3 years ago

The population of bacteria in an

Mathematics

1 answer:

kenny6666 [7]3 years ago

7 0

Answer:

Step-by-step explanation:

Future amount = 100(1+0.70)³

= 100 × 1.70³

= 491.3

491 bacteria

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Nate is 4 years older than 2 times his brother’s age. Write a rule that represents Nate’s age “n” as a function of his brother’s

IRINA_888 [86]

Answer:

n = 2b + 4

Step-by-step explanation:

4 years older = +4

2 times his brother = 2b

n= 2b+4

6 0

3 years ago

Please answer this question :)

tia_tia [17]

Answer: 2.663043987
explanation: use calculator

7 0

3 years ago

Solve (x +9)2 = 25.

alexandr1967 [171]

Answer:

$x = - 4 \: or \: x = - 14$

Step-by-step explanation:

We have been given the equation

$(x + 9) {}^{2} = 25$

and we are asked to apply the square root property of equality to our given a equation and isolate the variable

First, take the square root of both sides of our equation

$\sqrt{(x + 9) {}^{2} } = \sqrt{25}$

$x + 9 = \: 15$

$x + 9 = 5 \: or \: x + 9 = - 5$

$x + 9 - 9 = 5 - 9 \: or \: x + 9 - 9 = - 5 - 9$

$x = - 4 \: or \: x = - 14$

THEREFORE, THERE ARE TWO SOLUTIONS FOR OUR GIVEN EQUATION

$x + 9 = 5 \: then \: x = - 4. \\ x + 9 = - 5 \: then \: x = - 14$

PLEASE MAKR ME BRAINLIEST IF YOU ARE HAPPY WITH THE ANSWER

8 0

3 years ago

Katrina randomly selected 64 students out of her school of 400 students and found that 40 of them want school to start at a late

SashulF [63]

- The sample size is 64.

- The point estimate of the population proportion is 0.625.

-The margin of error is approximately 16%.

6 0

3 years ago

Read 2 more answers

Expand, simplify..... :- /

balu736 [363]

Simplifying makes a algebric expression easily understandable and solvable.

5 0

3 years ago