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aliina [53]
3 years ago
10

A sports club needs to raise at least $500 by selling chocolate bars for $2.50 each. Sebastian wants to know how many chocolate

bars, c, the sports club must sell in order to reach its goal
Mathematics
2 answers:
givi [52]3 years ago
7 0

Answer:

200

Step-by-step explanation:

Just took the test on edge.

o-na [289]3 years ago
6 0
They would need to sell 200 chocolate bars
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Georgia [21]

The equation: n - 4 = -15

Now let's solve our equation for n.

n - 4 = -15

Add 4 to both sides.

n = -11

4 0
3 years ago
Does this graph represent a function? Why or why not?
DedPeter [7]

Answer: C

Step-by-step explanation: For a function, each x-coordinate corresponds to exactly one y-coordinate.

To determine whether the graph shown here

is a function, we can use the vertical line test.

The vertical line test tells us that if each x-coordinate on the graph corresponds to exactly one y-coordinate, then any vertical line that we draw on the graph should hit the graph at only one point.

For the graph show here, any vertical line that you draw with hit the graph at only one point which means it does pass the vertical line test.

So this graph is a <em>function</em>.

8 0
3 years ago
Find the surface area of a sphere with a radius of 12 cm. Approximate 3.14 and round your answer to the nearest hundredth
attashe74 [19]
The equation to find a spheres surface area is 4 pi R ^2
and this works in any order 

4 * 12 is 48 (4 * R)

48^2 is 2304 ((4 * R)^2)

the exact answer is 2304\pi

the full answer is 7234.56 (((4 * R)^2)\pi)
5 0
3 years ago
Read 2 more answers
a store buys shirts for $12 each and marks up the price by %25. what is the price for a shirt at this store??
iren [92.7K]

Answer:

15

Step-by-step explanation:

12 x 0.25= 3

12+3=15

8 0
2 years ago
Identify each x-value at which the slope of the tangent line to the function f(x) = 0.2x2 + 5x − 12 belongs to the interval (-1,
Misha Larkins [42]

Answer:

<em>slope of the tangent</em>

<em></em>\frac{d y}{d x} = 0.2(2 x) + 5 (1)<em></em>

<em>The slope of the tangent to the interval (-1 ,1)</em>

<em>m = 4.6 ,5, 5.4</em>

Step-by-step explanation:

<u><em>Step(i):</em></u>-

Given function is  f(x) = 0.2 x² + 5 x − 12

Slope of the tangent formula

                        m = \frac{d y}{d x}

Let y =  f(x) = 0.2 x² + 5 x − 12 ...(i)

Differentiating equation(i) with respective to 'x' , we get

\frac{d y}{d x} = 0.2(2 x) + 5 (1) -0

let x=-1

m = \frac{dy}{dx} = 0.2 (2 X -1) +5 = 4.6

let x=0

m = 5

let x=1

m = \frac{dy}{dx} = 0.2 (2 X 1) +5 = 5.4

<u><em>conclusion</em></u>:-

<em>slope of the tangent</em>

<em></em>\frac{d y}{d x} = 0.2(2 x) + 5 (1)<em></em>

<em>The slope of the tangent to the interval (-1 ,1)</em>

<em>m = 4.6 , 5,  5.4</em>

 

7 0
3 years ago
Read 2 more answers
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