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PilotLPTM [1.2K]
1 year ago
13

Can someone help me please

Mathematics
1 answer:
Alex73 [517]1 year ago
3 0

Answer:

15t  >  180

Step-by-step explanation:

the girl is selling tickets for dollars 15 and she wants to raise more than dollars 180. that means we need a symbol that will make it so that $180 is always less than. like such.

180 < y \\ y > 180

it shouldn't be less than or equal to symbol because she wanted to save more than $180. that means we can't use this expression.

15 + t \geqslant 180 \\ 15t \geqslant 180

and we can't use this expression either

15 + t   > 180

let's say if we had somebody by one ticket then that would mean we would add 1 to 15 which will equal 16 and so forth.

15 + 1 = 16 \\ 15 + 2 = 17 \\ 15 + 3 = 18

etc....

if each one of her tickets cost $15 and t is equal to the amount of tickets sold then we should multiply the operation so that we have groups of 15. like such.

15 \times 1 = 15 \\ 15 \times 2 = 30 \\ 15 \times 3 = 45 \\ 15 \times 4 = 60

etc....

this means the expression she wants to use is

15t > 180

if you want more help you can ask me and I will try to answer your questions.

.

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8 0
3 years ago
What value of $k$ will make $4x^2 - 20x + k$ the square of a binomial?
Arisa [49]

Answer:

k = 25

Step-by-step explanation:

(2x  - sqrt(k) )^2              Expand this as a binomial                          

4x^2 - 4x*sqrt(k) + k      The middle term must be -20x Solve for k so it is

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k = 25


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3 years ago
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BabaBlast [244]

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Step-by-step explanation:

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Plz mark Brainliest!

Have a nice day!

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3 years ago
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Answer:

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Step-by-step explanation:

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f(x)=3x^{4}+8x^{2}-22x+43

The degree of f(x) is 4 i.e. an even degree and the leading coefficient i.e. coefficient with highest powered variable is positive in sign.

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Since, the leading coefficient of f(x) is positive, it will open towards up from both right and left side. So, the correct option is the fourth option.

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Step-by-step explanation:

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hope this helped =3

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4 years ago
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