Write the number in standard form. 7×10^7

Mathematics

2 answers:

mamaluj [8]3 years ago

4 0

7×10^7 = 70000000 (10^7 = 10000000)

Charra [1.4K]3 years ago

3 0

The first 7 is the same as 7.0

The second 7 is the exponent over the 10 telling us how many spots to move the decimal to the right. We move to the right because the exponent is positive. So we'll move 7 spots to the right to go from 7.0 to 70,000,000 which is the number 70 million.

Answer: 70,000,000

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IrinaVladis [17]

B. most likely because 40 divided by 4 is 10. 10/40 is 25%

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3 years ago

A.(3,7) is a solution to the linear system.

uysha [10]

Answer:

y = 2x + 1 --> linear

y = -4x + 7 --> non-linear

Not a solution for a linear system.

Step-by-step explanation:

for (a), y = 2x+1, substitute the x and y values. keep in mind, that in a linear pair, (x, y). So, for the first equation you get:

7 = 2x3 + 1. This is correct, because 6 + 1 is 7. Therefore, (a) is linear.

for (b), we have to substitute our values again. You get:

7 = -4x3 + 7, which is

7 = -12+7, which is not true. So, (b) is not linear.

This means that for the linear pair (3, 7), it does not satisfy both equations, which means that it is not a solution for the linear system.

8 0

2 years ago

The smaller rectangle is a 13 scale drawing of the original figure. Use the drop-down menus to show the missing dimensions of th

juin [17]

The complete question in the attached figure

we know that
factor scale=1/13
factor scale=[dimension smaller rectangle]/[dimension original rectangle]
so
[dimension smaller rectangle]=[factor scale]*[dimension original rectangle]

a) for l=36 cm in the original rectangle
[dimension smaller rectangle]=[1/13]*[36]--------> 2.77 cm

b) for w=28 cm in the original rectangle
[dimension smaller rectangle]=[1/13]*[28]--------> 2.15 cm

c) [area smaller rectangle]=2.77*2.15------> 5.96 cm²

the answers in the attached figure