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2 years ago

Find the area of the figure below, round your answer to the nearest hundredth. (use

Mathematics

1 answer:

user100 [1]2 years ago

7 0

Step-by-step explanation:

$\pi \times {7}^{2} = 3.14 \times 49 = 153.86 \\ 15 \times 25 = 375 \\ 153.86 + 375 = 523.86 \: {ft}^{2}$

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When 2 times a number is increased by 9 the answer is the same as when 30 is decreased by the number

galben [10]

Answer:

(2*n)+9=n-30

Step-by-step explanation:

I'm not sure but I think that is the equation

8 0

2 years ago

Read 2 more answers

PLEASEEE HELP MEEEE<br><br>NO LINKSSS

Artemon [7]

Answer:

$\huge\boxed{(2,\ 3);\ (-1,\ 6)}$

Step-by-step explanation:

$f(x)=x^2-2x+3\to y=x^2-2x+3\\f(x)=-x+5\to y=-x+5\\\\\left\{\begin{array}{ccc}y=x^2-2x+3&(1)\\y=-x+5&(2)\end{array}\right$

substitute (1) to (2):

$x^2-2x+3=-x+5$ add x to both sides

$x^2-2x+x+3=-x+x+5$

$x^2-x+3=5$ subtract 5 from both sides

$x^2-x+3-5=5-5$

$x^2-x-2=0\\\\x^2+x-2x-2=0\\\\x(x+1)-2(x+1)=0\\\\(x+1)(x-2)=0\iff x+1=0\ \vee\ x-2=0\\\\\boxed{x=-1\ \vee\ x=2}$

substitute the values of x to (2):

$x=-1\\\\y=-(-1)+5=1+5=6\\\\\huge\boxed{(-1,\ 6)}\\\\x=2\\\\y=-2+5=3\\\\\huge\boxed{(2,\ 3)}$

3 0

2 years ago

(2a²-a²-7a+2)÷(a-2) Answer Please

ikadub [295]

Answer:

2a^2 + 3a - 1 ,

Step-by-step explanation:

I am assuming you mean

2a^3-a^2-7a+2

By long division:

a - 2 ) 2a^3 - a^2 - 7a + 2 ( 2a^2 + 3a - 1 <------- Quotient

2a^3 - 4a^2

3a^2 - 7a

3a^2 - 6a

-a + 2

. . . . .

7 0

1 year ago

Plz help :) will mark brainliest if correct

Vedmedyk [2.9K]

Answer:

1st

Step-by-step explanation:

7 0

2 years ago

Can someone give me the answers for the number frame and how you did it, I’m confused :)

xxTIMURxx [149]

Answer:

16, 56, ...

Step-by-step explanation:

It looks like you have to put in each cell the multiplication of the row and the column, so the columns are 2, 7, 4 etc., and the row is always 8.

First cell: 2x8 = 16

Second cell: 7x8 = 56

and so on

It teaches you to apply the multiplication in a random sequence; you should be able to do this in your head.

8 0

3 years ago