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3 years ago

Which equation could generate the curve in the graph below?

Mathematics

1 answer:

MArishka [77]3 years ago

3 0

Answer:

-2x+5=3 (hi idrk)

Step-by-step explanation:

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How to do this question

Tema [17]

Answer:

$f(8) = \underline{5}$

Step-by-step explanation:

We can see it on the given table of values.

6 0

3 years ago

Prove algebraically that r = 10/2+2sinTheta is a parabola

Xelga [282]

Answer:

$y = - \frac{ 1 }{10} {x}^{2} + \frac{5}{2}$

Step-by-step explanation:

We want to prove algebraically that:

$r = \frac{10}{2 + 2 \sin \theta}$

is a parabola.

We use the relations

${r}^{2} = {x}^{2} + {y}^{2}$

and

$y = r \sin \theta$

Before we substitute, let us rewrite the equation to get:

$r(2 + 2 \sin \theta) = 10$

$r(1+ \sin \theta) = 5$

Expand :

$r+ r\sin \theta= 5$

We now substitute to get:

$\sqrt{ {x}^{2} + {y}^{2} } + y = 5$

This means that:

$\sqrt{ {x}^{2} + {y}^{2} }=5 - y$

Square:

${x}^{2} + {y}^{2} =(5 - y)^{2}$

Expand:

${x}^{2} + {y}^{2} =25 - 10y + {y}^{2}$

${x}^{2} =25 - 10y$

${x}^{2} - 25 = - 10y$

$y = - \frac{ {x}^{2} }{10} + \frac{5}{2}$

This is a parabola (0,2.5) and turns upside down.

4 0

3 years ago

Suppose the population of a small country is 875,000 and growing at an annual rate of 3%. Identify the rate as either a growth r

just olya [345]

Answer:

Need to calculate 3% of 875 000 which is equal 26250

8 0

3 years ago

A.) 15 B.) 45 C.) 60 D.) 30

Minchanka [31]

The answer is the letter d the anwer is 30 I think it was just a guess and I'm bored dont throw no hate comment cuz I'm from Newark run my 30 just like the answer 30

6 0

3 years ago

Please help! What is 1 1/2+1/6? -giving out 20 points

Mice21 [21]

$1 \frac{2}{3}$

Hope it helps

7 0

3 years ago

Read 2 more answers