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Andrews [41]
3 years ago
13

Can anyone please help me? I dont understand this!

Mathematics
2 answers:
mel-nik [20]3 years ago
4 0
\bf \stackrel{\textit{force of gravity}}{F}~~,~~\stackrel{\textit{gravitational constant}}{G}~~,~~\stackrel{\textit{first mass}}{m_1}~~,~~\stackrel{\textit{second mass}}{m_2}
\\\\\\
\stackrel{\textit{distance of masses centers}}{d}\implies \stackrel{\textit{squared that}}{d^2}\\\\
-------------------------------\\\\
\stackrel{\textit{F equals product of }G\cdot m_1\cdot m_2\textit{ divided by square of }d}{F=\cfrac{G\cdot m_1\cdot m_2}{d^2}}
xeze [42]3 years ago
3 0
"The force of gravity, F..."
So we start with just
F

"... is equal to..."
F=

"... the product of..." means we're going to multiply some things. What will we be multiplying together? Answer: "the gravitational constant (G), the mass of the first object (m1), and the mass of the second object (m2)..."
F = G × m1 × m2 ...

"... divided by..."
F = (G × m1 × m2) ÷ (...)

"... the square of..."
F=(G × m1 × m2) ÷ (...)^2

"...the distance between their centers (d)."
F=(G × m1 × m2) ÷ (d^2)
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0.2 is x% of 2<br><br> please help me
elena-14-01-66 [18.8K]

Answer:

What is 0.2 percent of 2? = 0.004.

4 0
2 years ago
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Solve the following system using the SUBSTITUTION method.<br> x - 3y = 2<br> 2x - 6y = 6
notka56 [123]

ANSWER:

  • x – 3y = 2 ...(1)
  • 2x – 6y = 6 ...(2)

On solving eq(1), we get

  • x – 2 = 3y
  • x – 2/3 = y

Plug the value of x in eq(2)

  • 2x – 6(x - 2/3) = 6
  • 2x – 2(x – 2) = 6
  • 2x – 2x + 4 = 6
  • 0 = 6 – 4
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So, given system of equations is not correct.

6 0
3 years ago
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Which lists the ratios in order from least to greatest 2:9,1:6,7:36
mezya [45]

Answer:

1:6, 7:36, 2:9

Step-by-step explanation:

2 : 9 → 8 : 36

1 : 6 → 6 : 36

7 : 36

Least → Greatest

1:6, 7:36, 2:9

4 0
3 years ago
Suppose that only 65% of all drivers in a certain state wear a seat belt. a random sample of 80 drivers is selected. what is the
jonny [76]

Answer:

Pr(X >42) = Pr( Z > -2.344)

                = Pr( Z< 2.344) = 0.9905

Step-by-step explanation:

The scenario presented can be modeled by a binomial model;

The probability of success is, p = 0.65

There are n = 80 independent trials

Let X denote the number of drivers that wear a seat belt, then we are to find the probability that X is greater than 42;

Pr(X > 42)

In this case we can use the normal approximation to the binomial model;

mu = n*p = 80(0.65) = 52

sigma^2 = n*p*(1-p) = 18.2

Pr(X >42) = Pr( Z > -2.344)

                = Pr( Z< 2.344) = 0.9905

7 0
3 years ago
Last week Anna received a pay check for $442.50. She noticed in the check stub that $47.30 of the money she earned had been with
Troyanec [42]

Answer:

Percentage of Taxes = 10.689 %

Step-by-step explanation:

Given that

Total earning of Anna is $442.50

The amount which is held with Taxes = $47.30

Now in terms of percentage

percentage of taxes from her total earning = \frac{47.30}{442.50} times 100

So % taxes = ( 0.106892) × 100

∴       Taxes percentage = 10.689 %

6 0
3 years ago
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