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trasher [3.6K]
3 years ago
8

If 45 cookies will serve 15 students, how many cookies are needed for 30 students?

Mathematics
2 answers:
katrin2010 [14]3 years ago
7 0

Answer:

90 cookies

Step-by-step explanation:

Can I be brainliest please

Vanyuwa [196]3 years ago
4 0

Answer:

10

Step-by-step explanation:

45/15 = 3

30/3 = 10

Hope this helps:)

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Kylie explained that (negative 4 x 9) squared will result in a difference of squares because (negative 4 x 9) squared = (negativ
JulijaS [17]

A perfect square trinomial is the result in algebraic form which is obtained by solving the squared binomial expression. Kylie did not understand that this is a perfect square trinomial and she did not determine the product correctly. Thus the option C is the correct option.

Given information-

The expression for the given problem is,

(-4x+9)^2

<h3>Perfect square trinomial</h3>

A perfect square trinomial is the result in algebraic form which is obtained by solving the squared binomial expression.

The perfect square trinomial can be given as,

ax^2+bx+c

The given expression can be solved as,

(-4x+9)^2=(-4x+9)\times(-4x+9)\\(-4x+9)^2=-4x(-4x+9)+9(-4x+9)\\(-4x+9)^2=16x^2-36x-36x+81\\(-4x+9)^2=16x^2-72x+81

Hence Kylie did not understand that this is a perfect square trinomial and she did not determine the product correctly. Thus the option C is the correct option.

Learn more about the perfect square trinomial here;

brainly.com/question/88561

3 0
2 years ago
Experiments with repeated independent trials will be described by the binomial distribution if
bija089 [108]

Answer:

d. each trial has exactly two outcomes whose probabilities do not change

Step-by-step explanation:

A binomial experiment is one where there are exactly two outcomes for each trial and probability for getting success is constant in each trial.

In other words, each trial is independent of the other.

The trials need not be continuous nor time between trials to be constant.

Since trials are to be independent, each trial cannot influence the next.

Only option d is right.

d. each trial has exactly two outcomes whose probabilities do not change

Examples are tossing of coins, throwing dice, drawing cards or balls with replacement, etc

7 0
3 years ago
If you have 7 goldfish and 2 drowned and 3 ran away, how many do you have left?
ololo11 [35]
7 fish can’t drown or run away
7 0
3 years ago
Read 2 more answers
-4 times a number plus 16 is -116. find the number and show work.
pav-90 [236]
-4*25 = -100+16 = -116
6 0
3 years ago
What type of solution is x^2 + 10x + 25 = 0
MaRussiya [10]
Hello.

There is only one solutin for <span> x^2 + 10x + 25 = 0

You can tell because it ends with a 0.

Have a nice day</span>
5 0
3 years ago
Read 2 more answers
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