3 years ago

Please help me with this question, I'm stuck ;( .

Mathematics

1 answer:

sveticcg [70]3 years ago

7 0

i think C but i dont know forsure

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The population of cats that are rescued every year is currently 50,000 and declines at a rate of 1.2% every year. This models

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This models exponential decay.

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3 years ago

26. A book costs sh. (x - 300) and a pen costs sh (x + 100). If Ndagire pad sh. 3300 for 3 books and 2 pens, how much did she pa

saul85 [17]

Answer:

500 and 900

Step-by-step explanation:

3(x - 300) + 2(x + 100) = 3300 ← distribute parenthesis

3x - 900 + 2x + 200 = 3300

5x - 700 = 3300 ( add 700 to both sides )

5x = 4000 ( divide both sides by 5 )

x = 800

Then

cost of book = x - 300 = 800 - 300 = 500

cost of pen = x + 100 = 800 + 100 = 900

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1 year ago

The variable z is inversely proportional to x. When x is 16, z has the value 0.875. What is the value of z when x= 21?

ziro4ka [17]

For $z$ and $x$ to be inversely proportional, there must be some constant $k$ such that

$zx=k$

Given that $z=0.875$ when $x=16$ , it follows that

$0.875\cdot16=k\implies k=14$

Then when $x=21$ , we have

$21z=14\implies z=\dfrac{14}{21}=\approx0.667$

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3 years ago

What’s the answer to this question. <br> Simple correct answers

Sophie [7]

Answer:

1st one

Step-by-step explanation:

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3 years ago

A company is allowed to interview candidates until two qualified candidates are found. But budget constraints dictate that no mo

Lapatulllka [165]

Answer:

Kindly check attached picture for sample space design

45 ways

Step-by-step explanation:

Number of qualified candidates to be chosen = 2

Number of candidates to be interviewed = 10

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nCr = n! / (n-r)! r!

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10C2 = 10*9 / 2 * 1

10C2 = 90/2

10C2 = 45 different samples

Our sample space will contain 45 different samples

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