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2 years ago

Joni has a circular

Mathematics

1 answer:

sergey [27]2 years ago

4 0

Answer:

12.31 teaspoons

Step-by-step explanation:

Calculate the area of a garden with a radius of 7 feet:

Area = $\pi$ $r^{2}$

Conversion factor (2 teaspoons/25ft^2)

Area = (3.14)(7)^2

Area = 153.9 ft^2

(153.9 ft^2)(2 teaspoons/25ft^2) = 12.31 teaspoons

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I ready scientific notation help

Airida [17]

The required value is $2\times10^9$

Step-by-step explanation:

Weight of ants = $4\times10^{-3}$

Weight of elephant= $8\times10^6$

We need to find, the total weight of about how many ants equals to the weight of an oversized elephant.

The equation given is:

$4\times10^{-3} \times a = 8\times10^6$

We need to find a:

Solving:

$4\times10^{-3} \times a = 8\times10^6\\a=\frac{8\times10^6}{4\times10^{-3}}\\if \,\,10^a/10^-b \,\,then\,\, 10^{a+b}\\a=2\times10^{6+3} \\a=2\times10^9$

So, the required value is $2\times10^9$

Keywords: Scientific Notation

Learn more about Scientific Notation at:

#learnwithBrainly

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3 years ago

A mother is 30 years older than her son. Fifteen years ago the son was 1/3 of

nalin [4]

Let s be the son's age 15 yeasr ago and m the mother's age that year.

$s = \dfrac{m}{3}$

We also know that:

$m = s+30$

Plotting vallues:

$s = \dfrac{m}{3}\\\\\\3s = s+30\\\\2s = 30\\\\s = 15\\\\m = 45$

Remember that they were that age 15 years ago.

So their actual age is 30 and 60.

8 0

3 years ago

Read 2 more answers

When do you use trig functions?

Zielflug [23.3K]

When you have all three sides

7 0

4 years ago

Help me do this! Pleaseeeeeeeeeeee

Mariulka [41]

Answer:

$p=12x-10$

Step-by-step explanation:

Perimeter is just adding all of the sides' lengths together, so we can put all of them into one big equation and then combine like terms.

$p=x+(2x+5)+(6x-17)+(3x+2)\\p=12x-10$

Hope this helps!

7 0

3 years ago

What is 3 2/6 - 2/3??

drek231 [11]

Answer:

14/3

Step-by-step explanation:

32/6 - 2/3

16/3 - 2/3

16-2/3

14/3

3 0

3 years ago

Read 2 more answers