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snow_tiger [21]
3 years ago
6

Plz help me with this question I don't understand it!!

Mathematics
1 answer:
Sav [38]3 years ago
3 0
9t-7t-t^2
2t-t^2

Hope this helps :)
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What is bed? because I need help I don't know what the answer is
Allisa [31]

62 +62 = 124

360 - 124 = 176

176/2 = 88

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6 0
3 years ago
The student council is selling cupcakes at the school play. ​The cost to ​make the cupcakes is a fixed $75 plus $0.17 per cupcak
dedylja [7]

Answer:

C = 75 + 0.17x and R = 2x

2x - (75 + 0.17x) > 0

x ≥ 41

Step-by-step explanation:

The cost to make the cupcakes is a fixed $75 plus $0.17 per cupcakes made and the selling price of each cupcake is $2.00.

Part A: Now, the equation for the cost, C, for making x cupcakes is  

C = 75 + 0.17x ......... (1)

Again the equation for the revenue, R, from selling x cupcakes is

R = 2x ............ (2)

Part B: So, the inequality that could be solved to find the number of cupcakes, x, that must be made and sold to make a profit is  

R - C > 0

2x - (75 + 0.17x) > 0 ......... (3)

Part C: Solving inequality (3) we get

(2 - 0.17)x > 75

⇒ x > 40.98

⇒ x ≥ 41 {Since, x can not be a fraction}

(Answer)

3 0
3 years ago
A 2012 Gallup poll surveyed Americans about their employment status and whether or not they have diabetes. The survey results in
posledela

A) See picture for the table.

To make the table, multiply 47774 by 1.5% to get total that have diabetes and multiply 5855 by 2.5% to get total unemployed that have it, then using subtraction fill in the other squares of the table.

B)

Hypothesis:

H0: No association between employment and diabetes.

H1: Association between the two

Using a graphing calculator or Excel, run a chi-test.

Chi squared equals 31.844 with 1 degrees of freedom.

 The two-tailed P value is less than 0.0001

With this information we can reject the null hypothesis and conclude there is an association between diabetes and employment.

C)

Although there is a statistical significance, there really is no practical significance between an incidence rate of 1.5 or 2.5%

3 0
3 years ago
Determine the solution to the system of equation below, algebraically. <br> 5x+3y=28<br> x+y=8
VladimirAG [237]

Is this what you're asking for?

5 0
3 years ago
Give an example of both rational and an irrational number that falls between 24 and 25
levacccp [35]

Both 24 and 25 are rational. They can be turned into a fraction by putting a 1 as the denominator.

6 0
3 years ago
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