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2 years ago

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graph these two equations The quadratic equation y = –6 x 2 + 100 x – 180 models the store daily profit, y, for selling soccer b

alls at x dollars. The quadratic equation y = –4 x 2 + 80x – 150 models the store daily profit, y, for selling footballs at x dollars

1 answer:

kolezko [41]2 years ago

6 0

Solve the equations and plot the anwsers

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If C=5/9(F-32), what is F when C=20?

siniylev [52]

20 = 5 / 9(F-32)
f = 68

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2 years ago

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A gym charges a $59 fee plus $7.70 per week that person attends. The total cost y for any number of weeks x can be given using t

lianna [129]

Firstly the equation would be y=7.7x+59
(A)The slope is 7.7 (B) and shows that there is a 7.7 charge per week the person attends.
(A)The y intercept is 59 (B) and is the initial fee that the gym charges.

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2 years ago

Can someone help me on this question?

notsponge [240]

Answer:

x = 19.6

Step-by-step explanation:

By applying cosine rule in ΔBCD,

cos(30)° = $\frac{\text{Adjacent side}}{\text{Hypotenuse}}$

= $\frac{BC}{BD}$

$\frac{\sqrt{3}}{2}=\frac{BC}{16}$

BC = $8\sqrt{3}$

Now, by applying sine rule in ΔBAC,

sin(45)° = $\frac{\text{Opposite side}}{\text{Hypotenuse}}$

$\frac{1}{\sqrt{2}}=\frac{AB}{BC}$

$\frac{1}{\sqrt{2}}=\frac{x}{8\sqrt{3}}$

x = $8\sqrt{6}$

x = 19.59

x ≈ 19.6

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2 years ago

What is the slope of the graph shown below?

oee [108]

Answer:

C. 4

Step-by-step explanation:

Since this one is already graphed and we can see it clearely we can just count, but you can also do change in y over change in x (aka "rise over run") to find the slope.

So, we count and find it is four up and one over. 4/1 = 4 = c

Hope this helps, have a nice day! :)

4 0

2 years ago

solmaris [256]

Answer:

option c is correct answer

7 0

2 years ago