3 years ago

2.21*10^11 in standard notation

Mathematics

1 answer:

Natalija [7]3 years ago

7 0

221000000000
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Joey is creating a rectangular garden. The garden is 9 feet long and 7 feet wide. Joey calculated he needs feet of fencing to cl

Crazy boy [7]

Answer:

Amount of fencing: 32 feet

Amount of soil: 63 square feet

Step-by-step explanation:

Fencing: In a rectangle, the opposite side is the same length. So we do:

9+7+9+7 = <u>32 feet</u>

Soil: The soil is the area. Area is equal to length times width. Length is 9 and width is 7, so we do:

9 x 7 = <u>63 feet squared</u>

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3 years ago

Simplify sin x / CSC x + cos x / sec x

Artyom0805 [142]

sinx/cscx =sinx x sinx =sin^2x
cosx/secx=cosx x cosx=cos^2x
sin^2x+cos^2x=1 "trigonometric identity"

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3 years ago

What is 3/5 x 7/9 equivalent to 3/5 divided by 7/9

hoa [83]

Step-by-step explanation:

It's 27/35, so 27/1 * 1/35

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2 years ago

Read 2 more answers

Find the solution and enter your answer as an ordered pair (x, y). Be sure to include parentheses and a comma.

ipn [44]

Answer:

Step-by-step explanation:

the first one is:

x= 3

y= 2

the second one is:

x= -2

y= 8

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1 year ago

52 is 25% of what number?

Dahasolnce [82]

Answer: $208$

Step-by-step explanation:

Let be "x" the unknown number.

You know that the 25% of the unknown number "x" is 52.

With this information provided in the exercise, you can set up the following proportion:

$\frac{25}{52}=\frac{100}{x}$

Now you must solve for "x". The steps to find its value are:

- Multiply both sides of the equation by "x":

$(x)(\frac{25}{52})=(\frac{100}{x})(x)\\\\\frac{25x}{52}=100$

- Multiply both sides by 52:

$(52)(\frac{25x}{52})=(100)(52)\\\\25x=5200$

- Divide both sides by 25:

$\frac{25x}{25}=\frac{5200}{25}\\\\x=208$

4 0

2 years ago