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3 years ago

☀︎︎Scientific Notation: 2 problems, please provide an explanation as I missed the lesson on scientific notation :)

Mathematics

2 answers:

PolarNik [594]3 years ago

8 0

Answer:

Here you go hope this helps

Step-by-step explanation:

1: 7.7 x $10^{8}$

2: 2.9 x $10^{7}$

The number of decimal places you move will be the exponent on the

10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

fomenos3 years ago

7 0

7.7 x 10 to the power of 8 and 2.9 to the power of 7 if decimal is left positive right= negative

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PLEASEEEEE HELPPPP MEEEEEEE BRAINLIEST TO THE FIRST ANSWER AND 30 POINTS

icang [17]

Answer:

CD ≠ EF

Step-by-step explanation:

Using the distance formula

d = $\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }$

with (x₁, y₁ ) = C(- 2, 5) and (x₂, y₂ ) = D(- 1, 1)

CD = $\sqrt{(-1+2)^2+(1-5)^2}$

= $\sqrt{1^2+(-4)^2}$

= $\sqrt{1+16}$ = $\sqrt{17}$

Repeat using (x₁, y₁ ) = E(- 4, - 3) and (x₂, y₂ ) = F(- 1, - 1)

EF = $\sqrt{(- 1+4)^2+(-1+3)^2}$

= $\sqrt{3^2+2^2}$

= $\sqrt{9+4}$ = $\sqrt{13}$

Since $\sqrt{17}$ ≈ $\sqrt{13}$ , then CD and EF are not congruent

6 0

3 years ago

Every employee works 7 hours per day. every employee works 5 days per week. every employee works 49 weeks per year. how many day

andriy [413]

To determine the number of days that an employee work in a week, we simply use dimensional analysis and multiplying the number of works per week with the number of weeks in total for a year. That is,
employee works = (5 days per week)(49 weeks per year)
=245 days

4 0

3 years ago

Read 2 more answers

Sylvia and Darlene collect seashells.

svlad2 [7]

Answer:

S = 60

Step-by-step explanation:

240 divided by 4 is equal to 60

5 0

2 years ago

4(-12)(-3) I need help solving this ;-;