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2 years ago

8

Help asap thank you .

1 answer:

frosja888 [35]2 years ago

3 0

Answer:

2

Step-by-step explanation:

count up 2 count right 1, 2/1

2/1 = 2

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What are the coordinates of the vertices of the polygon in the graph that are in quadrant I?

MissTica

Yo sup??

The coordinates of vertices in 1st quadrant are

(2,5),(2,2) and (5,5)

Hope this helps

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3 years ago

Of the last 24 balloons sold at a party store 6 were white. Find the experimental probability that the next balloon sold will be

Alekssandra [29.7K]

Answer: 1 out of 4

Step-by-step explanation:

If you divided the total amount of balloons that were sold by the amount of white balloons, it would be 4. The 1 comes from 1 in 4 being the probability of them being white. You can check this by multiplying the 1 and 4 by 6 and it would be 6 out of 24, which shows our answer is correct.

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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:

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

Or

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

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

I need to find the area of my shape

k0ka [10]

Answer:

Formula for area of triangle:

A = bh x 1/2

Formula for area of parallelogram:

A = bh

Now find the area of the figure above which is a triangle:

3(base) x 8(height) x 1/2 = <em>12</em>

Let's find the area of the parallelogram;

6(height) x 9(base) = <em>54</em>

Add the two areas together:

12 + 54 = 66 cm2

6 0

2 years ago

Leigh bought a conical candle wax mold. The height of the mold is 16.2 inches and the radius of the inside of the top of the con

gavmur [86]

Answer:

C

the answer is C

8 0

3 years ago