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2 years ago

13

Can someone pls help for brainlest

1 answer:

Sav [38]2 years ago

8 0

Answer:

The answer is 74.24 square millimeters

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I wasn't in school today can someone explain how to do this

Pachacha [2.7K]

You have to multiply 7 3/4 to 9.

First, turn 7 3/4 to an improper fraction which is 31/4.
Next, you multiply 31/4 to 9/1(same thing as 9) across from each other.
Then, you get the answer 279/4(31 x 9 = 279 ;4 x 1 = 4; 279/4).
Last divide 279 to 4 and get 67.75( .75 = 3/4 ; 69 3/4).

7 0

3 years ago

What are the solution(s) to the quadratic equation 40 − x2 = 0? x = ±2 x = ±4 x = ±2 x = ±4

hichkok12 [17]

Answer: $x=\±2\sqrt{10}$

Step-by-step explanation:

To find the solutions of the quadratic equation given in the problem, you can apply the proccedure shown below:

- Subtract 40 from both sides of the equation.

- Multiply both sides of the equation by -1

- Apply square root to both sides of the equation.

Therefore, by applyin the steps above, you obtain:

$40-x^2-40=0-40\\-x^2=-40\\(-1)(-x^2)=(-40)(-1)\\\\x^2=40\\\\\sqrt{x^2}=\±\sqrt{40}\\\\x=\±2\sqrt{10}$

3 0

2 years ago

Read 2 more answers

How many cups are in a 13 gallons

djyliett [7]

<em>there are 208 cups in 13 gallons.</em>

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2 years ago

Read 2 more answers

7 2 − 140 degrees for angles

pickupchik [31]

Answer:

What?

Step-by-step explanation:

6 0

2 years ago

Which power does this expression simplify to?<br> [(7)(7)<br> 1<br> - -<br> ооо<br> 74<br> O

Paha777 [63]

Step-by-step explanation:

Answer is in attached image...

hope it helps

6 0

2 years ago