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Neko [114]
3 years ago
10

Calculate (6.3 × 10 ^5) × (2.5 × 10^ -2)

Mathematics
1 answer:
Talja [164]3 years ago
8 0

Answer:

15750

Step-by-step explanation:

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There is a total of 45 boys and girls in a choir.
rusak2 [61]

Answer:

16.5 year

Step-by-step explanation:

Using, mean = sum/no. *of observations

Here,

=> 16.2 = (sum of ages of boys)/18

=> 16.2 x 18 = sum of ages of boys

=> 291.6 = sum of ages of boys

Similarly, sum of ages of girls = 27 x 16.7 = 450.9

Mean(total) = (sumof agesof boys + girls)/45

Mean = (291.6 + 450.9)/45 = 16.5

3 0
3 years ago
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What is the surface area of the square pyramid represented by the net?
ipn [44]
Okay, Do you know how to find the surface area?
7 0
3 years ago
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 Solve each system by graphing.
Kryger [21]

9514 1404 393

Answer:

  (x, y) = (4, -4)

Step-by-step explanation:

A graphing calculator makes graphing very easy. The attachment shows the solution to be (x, y) = (4, -4).

__

The equations are in slope-intercept form, so it is convenient to start from the y-intercept and use the slope (rise/run) to find additional points on the line.

The first line can be drawn by staring at (0, -2) and moving down 1 grid unit for each 2 to the right.

The second line can be drawn by starting at (0, 2) and moving down 3 grid units for each 2 to the right.

The point of intersection of the lines, (4, -4), is the solution to the system of equations.

3 0
3 years ago
A wheel has a radius of 9 inches and travels as it spins. How far does the wheel travel in one revolution? Use 3.14 for pi and r
Naddika [18.5K]
I think it will travel in one revolution is 56.52
7 0
3 years ago
The price paid for a $250 table after a 30% discount is applied
Vladimir [108]

Answer:

GAFD

Step-by-step explanation:

250*0.3 is 75

250-75 175

so D

GAFD

Hope this helps plz hit the crown :D

8 0
3 years ago
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