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sveticcg [70]
3 years ago
15

8. Is this number correctly written in scientific notation? 6.875 x 10 yes O no​

Mathematics
1 answer:
Komok [63]3 years ago
5 0

Answer:

No

Step-by-step explanation:

I believe you have to approximate or round it off.

that will be 6.9.

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Find the length of the line segment shown below.
Marina86 [1]

Answer:

The end points of line segment are:

(x_1,y_1) = (5,4)\\(x_2,y_2)  = (-4,-3)

Using distance formula,

Distance = \sqrt{(x_2-x_1)^{2}+(y_2-y_1)^{2}} = \sqrt{(-4-5)^{2}+(-3-4)^{2}} = \sqrt{(-9)^{2}+(-7)^{2}} = \sqrt{81+49}=\sqrt{130} units

3 0
3 years ago
The soccer team bought new uniforms for $ 649.62. if there are 12 kids on the team, how much did each uniform cost? ( round answ
lianna [129]

Answer:

$54.14 per soccer uniform

Step-by-step explanation:

649.62/12

= 54.135

Round to the nearest penny - $54.14

4 0
3 years ago
Read 2 more answers
Find the area of a parallelogram with these dimensions.
aev [14]
The area is 14! hope this helps
3 0
3 years ago
I need to find the perimeter and area of the regular polygon.
mezya [45]
The area of a polygon is given by the formula Area = ap/2 where a is the length of the apothem and p is the perimeter. The apothem is a line from the center of the polygon perpendicular to a side.

Depending on the formula you know, you can find the length of a side in 1 of 2 ways. 

The first way uses a triangle. Using the radius of the polygon you can create 8 congruent triangles. The center angle will be 360 / 8 = 45 and two side lengths of 20. You can find the length of the base using the law of cosines.

c^2 = 20^2 + 20^2 - 2(20)(20)(cos 45)
c^2 = 400 + 400 - 800(cos 45)
c^2 = 800 - 800(cos 45)
c = sqrt(800 - 800(cos 45)
c = 15.31

The second way is to use this formula:
r = s / (2 sin(180 / n))
20 = s / (2 sin(180/8)
(20)(2)sin(22.5) = s
(40)sin(22.5) = s
s = 15.31

We need to calculate the perimeter. As there are 8 sides (8)(15.31) = 122.48
Now we need to calculate the apothem using

a = S / (2 tan (180 / n)
a = 15.31 / (2 tan (180 / 8))
a = 18.48

Now solve for the area

Area = ap/2
Area = (18.48)(122.48)/2
Area = 1131.72

perimeter = 122.48
area = 1131.72
7 0
3 years ago
What is 25% of 50000
juin [17]

Answer:

25% of 50000 is 12500

Step-by-step explanation:

To find: 25% of 50000

solution:

25% = \frac{25}{100}

hence, 25% of 50000 = \frac{25}{100}\times50000

                                     = 12500

Therefore, the answer is 12500.

6 0
3 years ago
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