3 years ago

Arc CD is One-fourth of the circumference of a circle. What is the radian measure of the central angle?

Mathematics

1 answer:

Sveta_85 [38]3 years ago

8 0

Answer:

Answer is b

Step-by-step explanation:

just did it

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Brianna buys a doll for 11.58 and some lotion for 3.14 she pays with a 20 dollar bill how much change should she get to the near

sertanlavr [38]

Answer:

5.30

Step-by-step explanation:

11.58 + 3.14 = 14.72

20 - 14.72 = 5.28

nearest dime is 5.30

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3 years ago

Use the distributive property to rewrite 6(4-x)

Arlecino [84]

Answer:

24-6x

Step-by-step explanation:

To distribute, you multiply the number outside the parenthesis by each number inside, keeping in mind the signs.

So, 6(4-x) = 6(4) - 6(x) = 24-6x

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4 years ago

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A biologist is studying the growth of a particular species of algae. She writes the following equation to show the radius of the

Lelu [443]

Answer:

The reasonable domain to plot the growth function is the interval [0,9]

$0\ days\leq d\leq 9\ days$

Step-by-step explanation:

In this problem we have a exponential function of the form

$f(d)=a(b^d)$

where

f(d) is the radius of the algae in mm

d is the number of days

a is the initial value or y-intercept

b is the base

r is the rate of growth

b=1+r

we have

$a=9\ mm\\b=1.04\\r=1.04-1=0.04=4\%$

we have

$f(d)=9(1.04^d)$

For f(d)=12.81 mm

substitute in the function and solve for d

$12.81=9(1.04^d)$

$(12.81/9)=(1.04^d)$

Apply log both sides

$log(12.81/9)=log(1.04^d)$

$log(12.81/9)=(d)log(1.04)$

$d=log(12.81/9)/log(1.04)$

$d=9\ days$

therefore

The reasonable domain to plot the growth function is the interval [0,9]

$0\ days\leq d\leq 9\ days$

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4 years ago

The following octagon is formed by removing four congruent right triangles from a rectangle. What is the total area of the octag

rewona [7]

To find the total area of the octagon you can find the area of the rectangle that is created by the entire figure and subtract the areas of the four congruent right triangles.

(10 cm x 6 cm) - [4(1/2 x 2 x 2)]
60 cm² -8 cm² = 52 cm²

The total area of the octagon is 52 cm².

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3 years ago

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Find the amount of sap the maple syrup producer would have collected from each tree if the total amount (5 gallons) was redistri

zhuklara [117]

Answer:

Step-by-step explanation:

You cannot solve the problem be cause you dont know how many trees there are.

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3 years ago