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jok3333 [9.3K]
3 years ago
6

Trigonometry problem

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
7 0

Answer:

800 m

Please find attached the working of this question

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If someone could please help me, I want to make sure that the steps are correct.
Leya [2.2K]
Your answer would be the last option, c = √(E/m).

We can see this when we rearrange the equation, as:

E = mc²
÷ m
E/m = c²
√
√(E/m) = c

So you got all the steps in rearranging correct :)


I hope this helps!
7 0
3 years ago
It takes 18 peaches to make 4 jars of peach preserves. How many peaches will be needed to make 14 jars?
Yuki888 [10]
Set up a proportion of peaches/ number of jars.
18/4=x peaches/14
Cross multiply;
4x=252
x=63 
So 63 peaches. Hope this helps. 
6 0
3 years ago
Read 2 more answers
How many atoms sodium would a 4 mole sample of Na3P have?
ioda
<h3>Answer:</h3>

2 × 10²⁴ atoms Na₃P

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Chemistry</u>

<u>Atomic Structure</u>

  • Using Dimensional Analysis
  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
<h3>Step-by-step explanation:</h3>

<u>Step 1: Define</u>

4 mol Na₃P

<u>Step 2: Identify Conversions</u>

Avogadro's Number

<u>Step 3: Convert</u>

<u />\displaystyle 4 \ mol \ Na_3P(\frac{6.022 \cdot 10^{23} \ atoms \ Na_3P}{1 \ mol \ Na_3P} ) = 2.4088 × 10²⁴ atoms Na₃P

<u>Step 4: Check</u>

<em>We are given 1 sig fig. Follow sig fig rules and round.</em>

2.4088 × 10²⁴ atoms Na₃P ≈ 2 × 10²⁴ atoms Na₃P

7 0
3 years ago
Examine the functions from the table
Len [333]
I believe that f(x) = 3(x-1). From the distance between the f(x) values you can infer that the factor in front of x must be 3. Then for x=0  the value is -3. So f(x) = 3x - 3 or 3(x-1).
8 0
3 years ago
Monica paid sales tax of $1.50 when she bought a new bike helmet. If the sales tax rate was 5%, how much did the store charge fo
galben [10]
So to get your answer you would do 1.50 / by 5% change 5% into 0.05 so now you have 1.50/0.05 and get 30 so your answer is $30 


5 0
3 years ago
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