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Afina-wow [57]
3 years ago
6

Express this number in scientific notation. 78 million

Mathematics
2 answers:
vlada-n [284]3 years ago
7 0

Answer:

7.8 × 10⁷

Step-by-step explanation:

78000000. <----- this dot on the end of the 0 move it 7 times to the right until you get in between the 7 and the 8

hope that helped : D

e-lub [12.9K]3 years ago
4 0

7.8 x 10^7

I don’t know how to explain it but it’s right

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We know that
 the distance from the centroid of the triangle to one of the vertices is the radius of the circle <span>required to inscribe an equilateral triangle.

[distance </span>centroid of the triangle to one of the vertices]=(2/3)*h
h=the <span>altitude  of the equilateral triangle-----> 5.196 in
so
</span>[distance centroid of the triangle to one of the vertices]=(2/3)*5.196
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the radius is equal to the distance of the centroid of the triangle to one of the vertices
hence
the radius is 3.5 in

the answer is
the radius is 3.5 in

8 0
3 years ago
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in 1981, about 1.1 million was lost due to fires. In 1988, The loss was about 9.6 million. Find each percentage of change
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8 0
3 years ago
List all the perfect cubes up to 1000 and their cube roots.
DiKsa [7]

Hello from MrBillDoesMath!

Answer:

1^3    =     1

2^3   =     8

3^3   =     27

4^3   =     64

5^3   =    125

6^3   =    216

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4 0
3 years ago
What is the solution of the system ? <br> 2x+3y=4 <br> x-y=-3
fgiga [73]
Change the equation, x - y = -3, to isolate x or y and plug that new equation into the equation 2x + 3y = 4

I changed it to: x = y - 3
so 
2(y - 3) + 3y = 4
2y - 6 + 3y = 4
5y - 6 = 4
5y = 4 + 6
5y = 10
y = 10/5
y = 2

then you plug that 2 into the equation x = y - 3 to get the value of x

x = (2) - 3
x = -1

you can check this by plugging the x and y values into the equation 2x + 3y = 4

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hope this helps :)




6 0
3 years ago
. A rowing club has 600 members. 60% of them are women. After 200 new members joined the club, the percentage of women was reduc
valkas [14]

Answer:

40

Step-by-step explanation:

Given:

Initial number of members = 600

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Now, members added = 200

So, total number of members after addition = 600 + 200 = 800

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Increase in women = New number of women - Old number of women

Therefore, increase in women = 400 - 360 = 40

So, 40 women are there in the 200 new members that joined the club.

5 0
3 years ago
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