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Dovator [93]
4 years ago
13

Help please! Work do be a struggle tho

Mathematics
1 answer:
beks73 [17]4 years ago
8 0

Answer:

h = \dfrac{S}{2 \pi r} - r

Step-by-step explanation:

S = 2 \pi rh + 2 \pi r^2

2 \pi rh + 2 \pi r^2 = S

2 \pi rh = S - 2 \pi r^2

h = \dfrac{S}{2 \pi r} - \dfrac{2 \pi r^2}{2 \pi r}

h = \dfrac{S}{2 \pi r} - r

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I'll give 20 points
Naddik [55]

it is 3 because if it has infinte solutions than it is = to 0 and 1 and infinite solutions

8 0
3 years ago
What is the answer to number five?
VARVARA [1.3K]
Paid same amount is important.

5 hours each one, and 4 babysitters
5*4 is 20

And if there's 170 dollars she paid in total, then each babysitter earned 170/20 per hour, which is 8.5 dollars per hour
3 0
3 years ago
What is the frequency of yellow
Zina [86]

Answer:

5.131 × 10¹⁴  Hz

Step-by-step explanation:

<u>Planck relation</u>

\large\boxed{E = hf}

where:

  • E = Energy of the photon (J).
  • h = Planck's constant (J · s).
  • f = frequency of light produced (Hz).

Given values:

  • E = 3.4 × 10⁻¹⁹ J
  • h = 6.626 × 10⁻³⁴ J · s

Substitute the given values into the formula and solve for f:

\implies 3.4 \times 10^{-19}=(6.626 \times 10^{-34})f

\implies f=\dfrac{3.4 \times 10^{-19}}{6.626 \times 10^{-34}}

\implies f=\dfrac{3.4}{6.626} \times \dfrac{10^{-19}}{10^{-34}}

\implies f=0.5131\times 10^{(-19-(-34))}

\implies f=0.5131 \times 10^{15}

\implies f=5.131 \times 10^{14}

8 0
1 year ago
Nancy earned $63 for 7 hours of babysitting. How much would Nancy earn for 55 hours of babysitting?
vovikov84 [41]

Answer:

$495

Step-by-step explanation:

Money earned for babysitting for 7 hours - $63

Money earned for babysitting for 1hour - 63/7= $9

Money earned for babysitting for 55 Hours =

$9 × 55

= $495

3 0
2 years ago
Simplify this expression 1x/18x
USPshnik [31]
Wouldn't it be 1/18x?????
7 0
3 years ago
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