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3 years ago

5

Found out the answer please I can't do this

1 answer:

xxTIMURxx [149]3 years ago

6 0

Answer:

530.929158457

Step-by-step explanation:

13x13= 169 x pi= 530.929158457

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Simplify sqrt(x^2-16)

Softa [21]

Remember for this type of question.I'm guessing you make the equation equal to 0. Then square both sides the (X ^2-16) and 0. Then the square root goes away. Then you factor it according to the difference of squares method. By taking the square root of x^2 and 16. So ultimately it turns into 2 binomials according to the difference of squares method. The simplified answer would be (X-4)(X+4)=0. To solve for x in each case, take each respective equation separately and make it equal to 0. Solve for x.

4 0

3 years ago

I’m not sure how to solve this

Igoryamba

Answer:

Step-by-step explanation:

5 + 3 = 8

8 × 3 = (x + 4) × 4

4x + 16 = 24

4x = 24 - 16

4x = 8

x = 2

I hope I helped you.

5 0

2 years ago

Bobby's christmas list had 3 more times as many items on it than johnnys list. Johnny asked for 8 fewer items than bobby. How ma

Anni [7]

Answer:

The items were on Johnny's list was <u>5</u> and Bobby's <u>13</u>.

Step-by-step explanation:

Given:

Bobby's christmas list had 3 more times as many items on it than Johnny's list.

Johnny asked for 8 fewer items than bobby.

Now, to find the number of items were on Johnny's and Bobby's christmas list.

Let the number of items on Johnny's list be $x$ .

And let the number of items on Bobby's list be $y$ .

So, as given in question:

<u>Bobby's christmas list had 3 more times as many items on it than Johnny's list:</u>

$y=3+2x.$ .......( 1 )

<u>And, Johnny asked for 8 fewer items than bobby:</u>

$y-8=x.$

Now, putting the value of $y$ from equation ( 1 ) in the place of $y$ :

⇒ $3+2x-8=x$

⇒ $2x-5=x$

<em>Adding 5 on both sides we get:</em>

⇒ $2x=x+5$

<em>Subtracting $x$ on both sides we get:</em>

⇒ $x=5.$

Thus, <u><em>Johnny's list = 5 items</em></u>.

Now, putting the value of $x$ in equation ( 1 ) we get:

$y=3+2(5)$

⇒ $y=3+2\times 5$

⇒ $y=3+10$

⇒ $y=13.$

Hence, <em><u>Bobby's list = 13 items</u></em>.

Therefore, the items were on Johnny's list was 5 and Bobby's 13.

8 0

3 years ago

Write an equivalent expression of 8m-(5+2m) without parentheses

Kipish [7]

Answer:

6m-5

Step-by-step explanation:

first you have distribute the negative to the equation in the parentheses so you get

8m - 5 - 2m

Then combine the like terms

So the final answer is 6m-5

6 0

2 years ago

Please answer CORRECTLY !!!!! Will mark brainliest !!!!!!!

NARA [144]

Answer:

it is 6x²+ 9x- 15

Step-by-step explanation:

3 0

2 years ago