3 years ago

PLEASE HELP WILL GIVE BRAINLIEST AND 5.0 RATING

Mathematics

1 answer:

qaws [65]3 years ago

5 0

Answer:

you land 5 ,5

Step-by-step explanation:

-2 five is at the left of negative then go up 5 times then move to the right 7 times which will land you at 5,5

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Hahaahaahhahahahahhaha no one can do this I bet but I need help my teacher explained it in a confusing way

Olegator [25]

Answer: question 5 is C

Question 6 is C

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Step-by-step explanation:

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3 years ago

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A culture started with 3,000 bacteria. After 8 hours, it grew to 3,300 bacteria. Predict how many bacteria will be present after

Sav [38]

Answer:

$3,462\ bacteria$

Step-by-step explanation:

In this problem we have a exponential function of the form

$y=a(b^x)$

where

x is the time in hours

y is the numbers of bacteria

a is the initial value

b is the base

r is the rate of growth

b=(1+r)

we have that

$a=3,000\ bacteria$

For x=8, y=3,300

substitute in the exponential function

$3,300=3,000(b^8)$

solve for b

$1.1=(b^8)$

$b=\sqrt[8]{1.1}$

$b=1.0120$

Find the value of r

$r=b-1=1.0120-1=0.0120=1.20\%$

The equation is equal to

$y=3,000(1.012^x)$

For x=12 hours

substitute the value of x in the equation

$y=3,000(1.012^{12})$

$y=3,462\ bacteria$

8 0

4 years ago

Which of the following choices will evaluate the expression a2 + b when a = 2 and b = 3?

pshichka [43]

<h3>Answer: A. 7</h3>

Work Shown:

Replace every 'a' with 2, and replace every b with 3

a^2+b = 2^2 + 3 = 4 + 3 = 7

3 0

3 years ago

Whats 2+4x=5......<br> .....

sergey [27]

2+4x = 5

4x = 5-2

4x = 3

$\frac{4}{4}x = \frac{3}{4}$

x = 3/4

4 0

3 years ago

Type your answer into the box.

ladessa [460]

Answer:

-1805.96 i think

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3 years ago

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