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3 years ago

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This circle graph shows the parts of her time that Kim spends listening to different types of music. Kim spends her time listeni

ng to which type of music? A. Pop B. Country C. Jazz D. Classical

2 answers:

Dmitrij [34]3 years ago

7 0

I needed help on the same anwser

ozzi3 years ago

5 0

I believe the answer is pop, hope i helped

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Help plz................

Pani-rosa [81]

You have the formula. Put in the numbers and solve for r.

The interest earned in 4 years on 5000 is (6500 -5000) = 1500.
.. I = Prt
.. 1500 = 5000*r*4
.. 1500/20000 = r = .075 = 7.5% . . . . . . matches selection B

7 0

3 years ago

The graphs below have the same shape. What is the equation of the red

anyanavicka [17]

Answer:

Option B is correct .

Step-by-step explanation:

According to Question , both the graph have same shape . If we look at the the first graph it cuts x - axis at (0 , 2) and ( 0 , -2) . Hence x = 2 and -2 are the zeroes of the equation .

And ,the given function is ,

$\implies f(x) = 4 - x^2 \\\\\implies f(x) = 4-x^2=0 \\\\\implies 2^2-x^2=0\\\\\implies (2-x)(2+x) = 0 \\\\\boxed{\red{\bf \implies x = 2 , (-2) }}$

<u>Hence ,we can can see that x = </u><u> </u><u>2</u><u> </u><u>and</u><u> </u><u>(</u><u>-</u><u>2</u><u>)</u><u> </u><u>are</u><u> </u><u>the</u><u> </u><u>zeroes </u><u>of </u><u>graph</u><u>. </u><u> </u>

This implies that if we know the zeroes , we can frame the Equation.

On looking at second parabola , it's clear that cuts x - axis at ( 1, 0 ) and (-1,0). So , 1 and -1 are the zeroes of the quadratic equation . Let the function be g(x) . Here , a and ß are the zeroes.

$\implies g(x) = (x-\alpha)(x-\beta) \\\\\implies g(x) = (1+x)(1-x) \\\\\boxed{\pink{\bf \implies g(x) = 1 - x^2}}$

<u>Hence </u><u>option </u><u>B</u><u> </u><u>is</u><u> </u><u>corre</u><u>ct</u><u> </u><u>.</u>

8 0

2 years ago

Read 2 more answers

Please help me on this

Morgarella [4.7K]

to get the equation of any straight line, we simply need two points off of it, so hmm let's use the two points you see in the picture below from the provided table.

$(\stackrel{x_1}{1}~,~\stackrel{y_1}{-1})\qquad (\stackrel{x_2}{4}~,~\stackrel{y_2}{5}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{5}-\stackrel{y1}{(-1)}}}{\underset{run} {\underset{x_2}{4}-\underset{x_1}{1}}}\implies \cfrac{5+1}{3}\implies 2 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-1)}=\stackrel{m}{2}(x-\stackrel{x_1}{1}) \\\\\\ y+1=2x-2\implies y=2x-3$

4 0

1 year ago

A soccer ball was kicked in the air and follows the path h(x)=−2x2+1x+6, where x is the time in seconds and h is the height of t

Sveta_85 [38]

Step-by-step explanation:

The soccer ball was kicked in the air and follows the path as :

$h(x)=-2x^2+x+6$

Here, x is the time in seconds and h is the height of the soccer ball.

We need to find the time at which the soccer ball hit the ground. It means that its height at a function of time becomes 0. So,

h(x) = 0

$-2x^2+x+6=0\\\\2x^2-x-6=0$

The above equation is a quadratic equation. It can be calculated as :

$x= \dfrac{-b \pm \sqrt{b^{2} - 4ac } }{2a}\\\\x= \dfrac{-b + \sqrt{b^{2} - 4ac } }{2a},x= \dfrac{-b - \sqrt{b^{2} - 4ac } }{2}\\\\x= \dfrac{-(-1) + \sqrt{(-1)^{2} - 4(2)(-6) } }{2(2)},x= \dfrac{-(-1) - \sqrt{(-1)^{2} - 4(2)(-6) } }{2(2)}\\\\x=2,-1.5$

So, at 2 seconds the ball will hit the ground.

6 0

3 years ago

A book fair sold 496 books. The primary students bought 1/4 of the books, intermediate students bought 1/8 of the books, and the

lukranit [14]

Answer:

Step-by-step explanation:

we have 496 books

primary students 496*1/4=124 books

intermediate students 496*1/8=62 books

upper students 496*1/16=31 books

teachers bought 496-(124+62+31)=279 books

6 0

2 years ago

Read 2 more answers