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Nastasia [14]
3 years ago
11

Estimate the square root of 78

Mathematics
2 answers:
Dima020 [189]3 years ago
8 0

Answer:

8.83176

Step-by-step explanation:

Furkat [3]3 years ago
5 0

Answer:

8.83176

Step-by-step explanation:

The square root of 78 is 8.83176, or 8.832 (rounded to the nearest thousandth).

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i have to write equations in standard form using integer coefficients for A,B, and, C Example: y= -8/15x + 1/20
uysha [10]

Answer:

c

Step-by-step explanation:

5 0
3 years ago
3+6 (2 + 3/6)<br> Can someone help me plssss and show how to too pls
Anna007 [38]
18

I used a calculator so you’ll need someone else to explain my apologies. I’m tried but I wanted to try and help by giving you the answer

4 0
3 years ago
Explain how to use the break apart strategy to find 247+358
KIM [24]
1. Set up the long addition.
  2 4 7
+3 5 8 
_______

2. Calculate 7+8, which is 15.
since 15 is two-digit, we carry the first digit 1 to the next column.
      1 
   2 4 7
+ 3 5 8 
________
          5
  
3. Calculate 4+5, which is 9. Now add the carry digit of 1, which is 10. Since 10 is two-digit, we carry the first digit 1 to the next column.
   1 1
   2 4 7
+ 3 5 8
________
       0 5

4. Calculate 2+3, which is 5. Now add the carry digit of 1, which is 6.
      1 1
      2 4 7 
    +3 5 8
    ______
      6 0 5

5. Therefore, 247 + 358 = 605.
   
               605
8 0
3 years ago
Read 2 more answers
Line segment 19 units long running from (x,0) ti (0, y) show the area of the triangle enclosed by the segment is largest when x=
Debora [2.8K]
The area of the triangle is

A = (xy)/2

Also,

sqrt(x^2 + y^2) = 19

We solve this for y.

x^2 + y^2 = 361

y^2 = 361 - x^2

y = sqrt(361 - x^2)

Now we substitute this expression for y in the area equation.

A = (1/2)(x)(sqrt(361 - x^2))

A = (1/2)(x)(361 - x^2)^(1/2)

We take the derivative of A with respect to x.

dA/dx = (1/2)[(x) * d/dx(361 - x^2)^(1/2) + (361 - x^2)^(1/2)]

dA/dx = (1/2)[(x) * (1/2)(361 - x^2)^(-1/2)(-2x) + (361 - x^2)^(1/2)]

dA/dx = (1/2)[(361 - x^2)^(-1/2)(-x^2) + (361 - x^2)^(1/2)]

dA/dx = (1/2)[(-x^2)/(361 - x^2)^(1/2) + (361 - x^2)/(361 - x^2)^(1/2)]

dA/dx = (1/2)[(-x^2 - x^2 + 361)/(361 - x^2)^(1/2)]

dA/dx = (-2x^2 + 361)/[2(361 - x^2)^(1/2)]

Now we set the derivative equal to zero.

(-2x^2 + 361)/[2(361 - x^2)^(1/2)] = 0

-2x^2 + 361 = 0

-2x^2 = -361

2x^2 = 361

x^2 = 361/2

x = 19/sqrt(2)

x^2 + y^2 = 361

(19/sqrt(2))^2 + y^2 = 361

361/2 + y^2 = 361

y^2 = 361/2

y = 19/sqrt(2)

We have maximum area at x = 19/sqrt(2) and y = 19/sqrt(2), or when x = y.
3 0
3 years ago
How do i do this 2+2
swat32

Answer: Its 4

Step-by-step explanation:

  1. Okay so 2+2 is just saying like your adding 1+1+1+1 and that gives you four.
  2. They're is another way you can get the sum too, You just add 2 to the number 2.

3 0
3 years ago
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