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olasank [31]
3 years ago
13

Jalyn plans to sell Algebra Nation t-shirts as a fundraiser for a new scholarship initiative. The wholesale t-shirt company char

ges Jalyn $10.00 a shirt for 75 shirts or less. If the number of t-shirts purchased is between 75 and 150 shirts, the company will lower its price to $7.50 per shirt. If Jalyn purchases 150 or more shirts, the price will decrease to $6.00 per shirt. Which of the following statements are true? Select all that apply. Can this situation be represented by a step function
Mathematics
1 answer:
denis-greek [22]3 years ago
6 0
Highlight all of the important numbers and what you need to do with them. It helps
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Using the quadratic formula to solve x2 = 5 – x, what are the values of x?
Ivenika [448]

Answer:

x²=5-x

x²+x-5=0

1x²+1x²-5=0

[ax²+bx²+c=0]

∆=b²-4ac

∆=1²-4(-5)(1)=1+20=21

x=(-b±√∆)/2a

x=(-1±√21)/2

meaning:

x=(-1+√21)/2 or x=(-1-√21)/2

4 0
1 year ago
Consider the spiral given by c(t) = (e2t cos(2t), e2t sin(2t)). Show that the angle between c and c' is constant. c'(t) = _____L
Tcecarenko [31]

Answer:

angle is 45° which is constant

Step-by-step explanation:

We use formula for two vectors <u>a </u>and <u>b</u>    to calculate angle θ between them by formula

cos θ =  <u>a .</u> <u>b</u>  / magnitude of <u>a </u>  ×  magnitude of <u>b</u>

<u>Please see the attached file</u>

8 0
3 years ago
Dolly used 10 pints of ice cream at her birthday party. Each person was served 2/5 pint of ice cream. How many people were serve
KonstantinChe [14]
25 people were served
5 0
3 years ago
Optimization-
pishuonlain [190]
Do you want a proof or just the answer?
The answer is: the square (2.5x2.5).
5 0
3 years ago
Sara buys asweater at a department store.The sweater cost 30 dollars
Anna71 [15]
Thats a reasonable price for a sweater.
6 0
3 years ago
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