MATHEMATICS MIDDLE SCHOOL

5 times the square root of 9 minus the square root of negative 64

Answers

Answer 1
Answer:

Answer:

15 - 8i

Step-by-step explanation:

5√9-√(-64) = ?  Rewrite -√(-64) as -8i.

Then we have 5(3) - 8i, or 15 - 8i.

Answer 2
Answer:

Answer:

15-8  

HOPE THIS HELP

Step-by-step explanation:

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The point (-3,3) lies on a circle. What is the length of the radius of this circle if the center is located at (10,6) ?

Answers

The radius is from center to point on a circle. 
So your task is  count distance between two points: S(10,6) and A(-3,3). 
Distance between two points A(x1, y1) and B(x2, y2)  count from this formula:
|AB|=√((x_2-x_1)^2+(y_2-y_1)^2) \n \n \hbox{So:} \n \n r=|SA|=√((-3-10)^2+(3-6)^2)=√((-13)^2+(-3)^2)=√(169+9)= \n r= √(178)
 You should find distance between two points 
A(x1, y1) and B(x2, y2)

A baker made 9 trays of cupcakes and 2 pans of brownies. Each cupcake tray makes 12 cupcakes, and each brownie pan makes 48 brownies. The baker estimates he made about 200 desserts in all. Is that a good estimate?

Answers

Answer:

Yes, because 9 times 12 is 108 and 2 times 48 is 96. So if you add 108+96 you get 204 which can be estimated as 200.

Step-by-step explanation:

The figure shows a smaller square within a larger square. A point is chosen at random inside the larger square. What is the probability that this point is in the shaded area? Write the answer as a decimal.

Answers

Given:

Side length of larger square = 10 in

Side length of smaller square = 5 in

To find:

The probability that this point is in the shaded area.

Solution:

Area of square formula =  side²

Area of larger square = 10²

                                     = 100 in²

Area of smaller square = 5²

                                     = 25 in²

Shaded area = Area of larger square - Area of smaller square

                      = 100 in² - 25 in²

Shaded area = 75 in²

$\text{P(point in shaded area)}=\frac{\text{Shaded area}}{\text{Total area}}

                                     $=(75)/(100)

                                     = 0.75

The probability of point in shaded area is 0.75.

Answer:

0.75

Step-by-step explanation:

A student found the product of 8 x 10^6 and 5 x 10^9 to be 4 x 10^15. What is the error? What is the correct product?

Answers

the correct answer is 4x10^16 

8x10^6 times 5 x 10^9
= 40 x 10^15
= 4 x 10^16   
there is 40 which is 4 x 10, which you can add to the 10^15 to become 10^16

Answer:

the correct answer is 4x10^16  

8x10^6 times 5 x 10^9

= 40 x 10^15

= 4 x 10^16    

there is 40 which is 4 x 10, which you can add to the 10^15 to become 10^16

Step-by-step explanation:

What is 743×295 in standard algorithm

Answers

 when your multipying in algorithm is going to have a lot of steps 
the last 2 digets is 3and 5 so multpy witch will equal 15 5 goes on the bottem and your 1 goes ontop of 4 ect... 743x295=219185

Final answer:

The product of 743 and 295 computed using the standard multiplication algorithm is 219035.

Explanation:

The multiplication question is asking for the product of the numbers 743 and 295. We can solve this by using the standard algorithm of multiplication, which follows these steps:

  1. Setup the multiplication problem with 743 on top and 295 below.
  2. Start with the digit in the ones position in the bottom number, which is 5. Multiply 5 by each digit in the top number, placing the result below the line on the right.
  3. Move to the digit in the tens position in the bottom number, which is 9. Multiply 9 by each digit in the top number, then place the result below the line on the left. Remember to include a 0 in the ones place this time as we are working with tens.
  4. Repeat the last step for the hundreds place. In this case, 2 is in hundreds place so, we multiply 2 by every digit in the top number. Remember to include two 0s at the end as we are working with hundreds.
  5. Add up the results and you have your answer.

If you follow these steps correctly, the product you obtain should be 219035.

Learn more about standard algorithm multiplication here:

brainly.com/question/32843500

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Adrian jogs 3\4 mile each morning how many days will it take him to jog 3 miles

Answers

Do 3 ÷ 3/4. First, find the KCF, you should get 3/1 x 4/3. Then just multiply. You should get 12/3, then simplify, the answe is 4 Days.
x*3/4=3
=> x=3/3*4
=> x=4
meaning 4 days
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