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3 years ago

To the nearest hundredth, what is the area of a circle with a radius of 3 units?

Mathematics

1 answer:

iren2701 [21]3 years ago

3 0

Answer:

B. 28.27 square units

Step-by-step explanation

Use the formula:

A=πr²

To find area of circle

Plug in 3 for r in the equation:

A=π3²

To get an answer of approximately:

B. 28.27 square units

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What is the value of x? x+1/3=9 Enter your answer in the box in simplest form.

Marina86 [1]

X=26/3
Wide it's 9/1-1/3
So times the 9/1 by 3
27/3-1/3
26/3

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4 years ago

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Which table represents a linear function?

Andrew [12]

Answer:

The first table is the only table representing a linear function.

Step-by-step explanation:

" You can tell if a table is linear by looking at how X and Y change. If, as X increases by 1, Y increases by a constant rate, then a table is linear. You can find the constant rate by finding the first difference. This table is linear."

P.S.

( thanks to G00GLE for the anwers, hat's off to the internet :^)

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3 years ago

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twinlakes on the shelf of a covenience store lose their fresh tastines over time. we say that the taste quality is 1 when the tw

Zolol [24]

Answer:

The graph is shown below.

The time to make the taste to half is 4.265 s.

Step-by-step explanation:

Given:

Initial value of the taste is, $Q_0=1$

Therefore, the quality of taste over time 't' is given as:

$Q(t)=Q_0(0.85)^t\\Q(t)=1(0.85)^t$

Now, when the taste reduces to half, $Q=0.5$

Therefore,

$0.5=1(0.85)^t$

Taking natural log on both the sides, we get:

$\ln(0.5)=\ln(0.85)^t\\\ln(0.5)=t\ln(0.85)\\t=\frac{ln(0.5)}{\ln(0.85)}=4.265\ s$

Therefore, the time to make the taste to half is 4.265 s.

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3 years ago

What is the length of the diagonal of the rectangle? Round to two decimal places

yan [13]

Answer:

Option C

Step-by-step explanation:

By the property of a rectangle,

"All interior angles of a rectangle measure 90°"

Therefore, m∠ABC = 90°

By applying cosine rule in the right triangle ABC,

cos(∠CAB) = $\frac{\text{Adjacent side}}{\text{Hypotenuse}}$

cos(25°) = $\frac{AB}{AC}$

AC = $\frac{AB}{\text{cos}(25)}$

AC = $\frac{18}{\text{cos}(25)}$

AC = 19.86

Therefore, Option C will be the answer.

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3 years ago

Answer the following questions. (a) What percent of 80 is 44? (b) What number is 45% of 40?

Pavlova-9 [17]

Answer:

a. 55%

b. 22

Step-by-step explanation:

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3 years ago

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