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3 years ago

PLZ HELP 25 POINTS THIS IS AN EMERGENCY THANKS!!

Mathematics

1 answer:

grin007 [14]3 years ago

8 0

This is how the graph looks. Hope it helps!!!!

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I need help with some 7th grade work again I BELIEVE IN YOU

Anestetic [448]

Answer:u wanna know an easier way look up period June 2010 questions and answers

Step-by-step explanation:

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4 years ago

The circumference of the ellipse approximate. Which equation is the result of solving the formula of the circumference for b?

Serhud [2]

Answer:

$b = \sqrt{\frac{C^{2} }{2(\pi )^{2} } - a^{2}}$

Step-by-step explanation:

Given - The circumference of the ellipse approximated by $C = 2\pi \sqrt{\frac{a^{2} + b^{2} }{2} }$ where 2a and 2b are the lengths of 2 the axes of the ellipse.

To find - Which equation is the result of solving the formula of the circumference for b ?

Solution -

$C = 2\pi \sqrt{\frac{a^{2} + b^{2} }{2} }\\\frac{C}{2\pi } = \sqrt{\frac{a^{2} + b^{2} }{2} }$

Squaring Both sides, we get

$[\frac{C}{2\pi }]^{2} = [\sqrt{\frac{a^{2} + b^{2} }{2} }]^{2} \\\frac{C^{2} }{(2\pi)^{2} } = {\frac{a^{2} + b^{2} }{2} }\\2\frac{C^{2} }{4(\pi)^{2} } = {{a^{2} + b^{2} }$

$\frac{C^{2} }{2(\pi )^{2} } = a^{2} + b^{2} \\\frac{C^{2} }{2(\pi )^{2} } - a^{2} = b^{2} \\\sqrt{\frac{C^{2} }{2(\pi )^{2} } - a^{2}} = b$

∴ we get

$b = \sqrt{\frac{C^{2} }{2(\pi )^{2} } - a^{2}}$

8 0

3 years ago

A population of bacteria triples every week in a laboratory. the number of bacteria is modeled by the expression 900.3

kipiarov [429]

Let x represent the number of weeks a population of the bacteria increases. Then, we have the number of bacteria is molded by the expression of 900*3^x. By, the given expression and when we assigned a value of x=2. Then we have 900*3² .

6 0

4 years ago

A local food mart donates 15% of its Friday sales to a charity. This Friday, the food mart had sales totaling $380.00. How much

rodikova [14]

The answer is B.

The reason is because what you do to find that discount from your original amount, you multiply your amount that you have from the start, (380.00) and multiply that by your discount or sale, whatever, and make sure to put as a decimal and then you get your answer

5 0

3 years ago

Read 2 more answers

Display the set of data in a histogram.

Scrat [10]

Answer:

B (The second graph)

Step-by-step explanation:

The order of frequencies of the chart:

1, 13, 9, 8, 12 reference

The order of frequencies of the graphs:

1) 1, 13, 9, 12, 8 incorrect

2) 1, 13, 9, 8, 12 correct

3) 9, 13, 1, 8, 12 incorrect

4) 13, 1, 9, 8, 12 incorrect

Therefore, the second graph 'b', is correct!

7 0

3 years ago