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Anni [7]
3 years ago
5

Help MATH ASAP MARKING BRIANLIT!!

Mathematics
1 answer:
FinnZ [79.3K]3 years ago
5 0

Answer:

-41

Step-by-step explanation:

The change is -2

(-2*20)-1 = -41

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dem82 [27]

$10,000 at 7% continuous compounding for 8 years

10000 e^{0.07 (8)} = 17506.7

Answer: A

3 0
3 years ago
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Working together, it takes Sam, Jenna, and Francisco two hours to paint one room. When Sam works alone, he can paint one room in
lutik1710 [3]

Answer:  12 hours

Step-by-step explanation:

Given : Working together, it takes Sam, Jenna, and Francisco two hours to paint one room.

When Sam works alone, he can paint one room in 6 hours. When Jenna works alone, she can paint one room in 4 hours.

Let 't' be the time taken by Francisco to paint one room on his own.

Then , we have

Rate of work of  Sam +Rate of work of Jenna + Rate of work of  Francisco =Rate of work they all do together

\dfrac{1}{6}+\dfrac{1}{4}+\dfrac{1}{t}=\dfrac{1}{2}

i.e.  \dfrac{1}{t}=\dfrac{1}{2}-(\dfrac{1}{6}+\dfrac{1}{4})

i.e.  \dfrac{1}{t}=\dfrac{1}{2}-(\dfrac{4+6}{24})

i.e.  \dfrac{1}{t}=\dfrac{1}{2}-\dfrac{10}{24}

i.e.  \dfrac{1}{t}=\dfrac{1}{2}-\dfrac{5}{12}

i.e.  \dfrac{1}{t}=\dfrac{6-5}{12}

i.e.  \dfrac{1}{t}=\dfrac{1}{12}

i.e. t= 12

Hence,  Francisco would take 12 hours to  paint one room on his own.

8 0
3 years ago
Which expression is equivalent to (3a)–2?
dimulka [17.4K]
The awnser is D but could also maybe be B
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Gnom [1K]

Answer:

x≥5

Step-by-step explanation:

-1 ≥ x/-5

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x(-1)/5 ≥ (-1) (-1)

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I'm not sure but I tried.

For the graph: you can draw a line about 15cm, put 0 at the start then after 5cm put 5 then 10 at 10cm and 15 at the end. At 5 put • that's the starting and go all the way to 15 and add > to show that the line continues. I'm not good at explaining but I hope it helps.

8 0
2 years ago
What is the formula of a radius circle ?
UkoKoshka [18]
I assume you happen to mean, what is the formula for a circle.

The formula is:

A=\pi  r^{2}
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3 years ago
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