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just olya [345]
3 years ago
13

Enter an equation for the function. Give your answer in the form a(b)". In the event that a = 1, give your

Mathematics
1 answer:
Anna [14]3 years ago
8 0

Answer:

r(n)=14,000(0.50)^n

Step-by-step explanation:

we know that

The equation of a exponential decay function is equal to

r=a(1-r)^n

where

r is the number of bacteria remaining

n is the number of hours since the  antibiotic was applied

a is the initial value

r is the rate of change

we have

a=14,000\ bacteria\\r=50\%=50/100=0.50

substitute

r(n)=14,000(1-0.50)^n

r(n)=14,000(0.50)^n

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Question:
aivan3 [116]

Answer:

part A) The scale factor of the sides (small to large) is 1/2

part B) Te ratio of the areas (small to large) is 1/4

part C) see the explanation

Step-by-step explanation:

Part A) Determine the scale factor of the sides (small to large).

we know that

The dilation is a non rigid transformation that produce similar figures

If two figures are similar, then the ratio of its corresponding sides is proportional

so

Let

z ----> the scale factor

\frac{CB}{C'B'}=\frac{CD}{C'D'}=\frac{BD}{B'D'}

The scale factor is equal to

z=\frac{CB}{C'B'}

substitute

z=\frac{4}{8}

simplify

z=\frac{1}{2}

Part B) What is the ratio of the areas (small to large)?

<em>Area of the small triangle</em>

A=\frac{1}{2}(2)(4)=4\ units^2

<em>Area of the large triangle</em>

A=\frac{1}{2}(4)(8)=16\ units^2

ratio of the areas (small to large)

ratio=\frac{4}{16}=\frac{1}{4}

Part C) Write a generalization about the ratio of the sides and the ratio of the areas of similar figures

In similar figures the ratio of its corresponding sides is proportional and this ratio is called the scale factor

In similar figures the ratio of its areas is equal to the scale factor squared

4 0
3 years ago
How do you solve<br> -.8x + 40 - 8x - 35
makvit [3.9K]

Answer:

-16x + 5

Step-by-step explanation:

-8x + 40 -8x - 35

Collect like terms

-8x - 8x + 40 - 35

= - 16x + 5  or 5 - 16x

I hope this was helpful, Please mark as brainliest

6 0
3 years ago
Read 2 more answers
What is the variable y in w= x y/z?
AleksAgata [21]
Multiply by z to get
wz = xy
divide by x
y = wz/x
8 0
3 years ago
46= 4x - 6 help me ok
icang [17]

Step-by-step explanation:

a little messy but hope it helps :)) !!

7 0
3 years ago
Read 2 more answers
Given: ABC is a right triangle with right angle C. AC = 15 centimeters and mZA= 40°
kupik [55]

Answer:

hello luv

Step-by-step explanation:

i see ur struggling mate

6 0
3 years ago
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