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2 years ago

Y are selling lollipops for $0.50 and candy bars for $1.50.

Mathematics

1 answer:

frutty [35]2 years ago

3 0

Answer:

b=8

Step-by-step explanation:

You multiply $0.50 by 6 (to get the amount of money she spent on lollipops)=3 then you take the 3 and subtract it from $15 which gives you 12, finally you get 1.50-12 and do that 8 times which means she bought 8 candy bars

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Which of the following expressions are equivalent to (9 7/8 + 2 4/5)-1/2

nikklg [1K]

Answer:A and B. Step-by-step explanation: C) 9 7/8 - (- 2 4/5) - (- 1/2) = = 9 7/8 + 2 4/5 + 1/2 (F). D) - (- 9 7/8 + 2 4/5) - 1/2) =.

I hope this helped^.^

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1 year ago

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Ashley began a new fitness and wellness program. After 30 days she weighed 124 pounds.

Pie

Ashley lost approximately 0.53 pounds per day. After 30 days, she lost 16 pounds and 16/30=0.53

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2 years ago

Find roots of the equation and state the multiplicity

olya-2409 [2.1K]

$({x + 2})^{3} = {x}^{3} + 6 {x}^{2} + 12x + 8$
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2 years ago

Given that −4i is a zero, factor the following polynomial function completely. Use the Conjugate Roots Theorem, if applicable. f

GalinKa [24]

Answer:

$\large \boxed{\sf \bf \ \ f(x)=(x-4i)(x+4i)(x+3)(x-5) \ \ }$

Step-by-step explanation:

Hello, the Conjugate Roots Theorem states that if a complex number is a zero of real polynomial its conjugate is a zero too. It means that (x-4i)(x+4i) are factors of f(x).

$\text{Meaning that } (x-4i)(x+4i) =x^2-(4i)^2=x^2+16 \text{ is a factor of f(x).}$

The coefficient of the leading term is 1 and the constant term is -240 = 16 * (-15), so we a re looking for a real number such that.

$f(x)=x^4-2x^3+x^2-32x-240\\\\ =(x^2+16)(x^2+ax-15)\\\\ =x^4+ax^3-15x^2+16x^2+16ax-240$

We identify the coefficients for the like terms, it comes

a = -2 and 16a = -32 (which is equivalent). So, we can write in $\mathbb{R}$ .

$\\f(x)=(x^2+16)(x^2-2x-15)$

The sum of the zeroes is 2=5-3 and their product is -15=-3*5, so we can factorise by (x-5)(x+3), which gives.

$f(x)=(x^2+16)(x^2-2x-15)\\\\=(x^2+16)(x^2+3x-5x-15)\\\\=(x^2+16)(x(x+3)-5(x+3))\\\\=\boxed{(x^2+16)(x+3)(x-5)}$

And we can write in $\mathbb{C}$

$f(x)=\boxed{(x-4i)(x+4i)(x+3)(x-5)}$

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

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2 years ago

(b) E: A randomly selected person finding cheese revolting. F: A different randomly selected person finding cheese delicious.

Svet_ta [14]

Answer:

Step-by-step explanation:

b) option C

C.E cannot affect F and vice versa because the people were randomly selected, so the events are independent.

because randomly selected events are mutually exclusive events.

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2 years ago