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3 years ago

11

Can someone explain how to do number 11?

1 answer:

stira [4]3 years ago

8 0

First you rewrite 27 as 3^3 and then you pull the term out from under the radical , assuming real numbers 3+ square root 16 . Then you rewrite it as 3+ square root 4^2 and then you pull out terms assuming they are positive then you add 3+4 and you get 7

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What is the approximate area of the shaded sector in the circle shown below?

Veronika [31]

Answer:

11.45

Step-by-step explanation:

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3 years ago

Find the area<br>(not to scale)

makvit [3.9K]

Answer: no

Step-by-step explanation: no

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3 years ago

wolverine [178]

Answer:

Ivy is 6 years old and Rose is 12 years old.

Step-by-step explanation:

To solve this problem, two variables are necessary since we have two unknown variables: Ivy's age and Rose's age.

Ivy's age will be $x$

and Rose's age will be $y$

"Ivy is half as old as her sister":

$x=\frac{y}{2}$

this will be our <u>fist equation.</u>

"In six years, Ivy will be two-thirds as old as Rose"

in six years Ivy will have $x+6$ years, and Rose will have $y +6$ years, so for this sentence we have the equation:

$x+6=\frac{2}{3}(y+6)$

this will be our <u>second equation.</u>

Substituting the value of x from the first equation into the second, and solving for y(Rose):

$\frac{y}{2}+6=\frac{2}{3} (y+6)\\\frac{y+12}{2} =\frac{2}{3} (y+6)\\y+12=\frac{4}{3} (y+6)\\3(y+12)=4(y+6)\\3y+36=4y+24\\36-24=4y-3y\\12=y$

Rose is 12 years old.

and Ivy (using the fist equation):

$x=\frac{12}{2}=6$

Ivy is 6 years old.

6 0

4 years ago

3y+3 (1-y)-y=-6PLEASE help

Murrr4er [49]

3y+4+3y-y=-6
6y-y+4=-6
5y+4=-6
5y=-10
y=-2
If you have any questions let me know

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4 years ago

What is bigger 1/8 or 12%

Mnenie [13.5K]

1/8 is 12.5% so it is bigger than 12%

6 0

3 years ago

Read 2 more answers