3 years ago

I need help does anyone know

Mathematics

1 answer:

larisa86 [58]3 years ago

4 0

Option A is the correct answer!!

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Ohhhh please help me I have a really bad grade in math

-Dominant- [34]

1) C 2) B I hope this helps!

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3 years ago

What is the side length of the square if A=81 m squared

Nesterboy [21]

Answer:

The side length is 9m

Step-by-step explanation:

A = 81 m^2

Since the figure is a square, we know the area of a square is A = s^2 where s is the side length

81 m^2 = s^2

Take the square root of each side

sqrt(81 m^2 ) = sqrt( s^2)

9 m = s

The side length is 9m

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4 years ago

Jed deposited $400 into a bank that offers 3.9% interest rate, compounded daily. In how many years will his balance be $800?

Klio2033 [76]

17.7 years----------->Apex correct answer

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4 years ago

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A 46 gram sample of a substance that is used to sterilize surgical instruments has a k-value of 0.1374. Find the substance's hal

mars1129 [50]

Answer:

$t=5.0days$

Step-by-step explanation:

Using the formula for the exponential decay that is $N=N_{0}e^{-kt}$ , we have N= $\frac{1}{2}{\times}46=23$ , $N_{0}=46$ and k=0.1374.

Thus, $N=N_{0}e^{-kt}$ becomes

$23=46{\times}e^{-0.1374t}$

$\frac{23}{46}=e^{-0.1374t}$

$\frac{1}{2}=e^{-0.1374t}$

Taking log on both sides, we get

$ln(\frac{1}{2})={-0.1374t}$

$t=\frac{ln\frac{1}{2}}{-0.1}$

$t=\frac{-0.6931}{-0.1374}$

$t=5.0days$

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3 years ago

3(x + 4) = 18 (Given)

strojnjashka [21]

The answer is division because u divide 3 from both side of the equation so that make the answer B

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3 years ago

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