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3 years ago

Math question please answer thanks c:

Mathematics

1 answer:

zalisa [80]3 years ago

5 0

The answer is D you are multiplying the hours, days, weeks, and months, hopes this helps (:

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This is a math question plz try you best

marysya [2.9K]

Answer:

11/12

Step-by-step explanation:

Calculate the sum

rewrite the fraction

simplify the fraction

Solution 11/12

3 0

3 years ago

The daily profit P (in thousands of dollars) from the sale of televisions is a function of the number x of televisions sold (

scZoUnD [109]

Answer:

The break-even sales amounts is 36 or 224.

Step-by-step explanation:

Consider the provided function.

$P= -5x^2 + 13x - 4$

Where x is the number of televisions sold (in hundreds) and P is the profit.

We need to calculate the break-even sales amounts.

the break-even sales amounts is the sales amounts that result in no profit or loss.

That means substitute P=0 and solve for x.

$-5x^2 + 13x - 4=0$

$5x^2-13x+4=0$

$\mathrm{For\:a\:quadratic\:equation\:of\:the\:form\:}ax^2+bx+c=0\mathrm{\:the\:solutions\:are\:}\\x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

Substitute a=4, b=-13 and c=4 in above formula.

$x_{1,\:2}=\frac{-\left(-13\right)\pm \sqrt{\left(-13\right)^2-4\cdot \:5\cdot \:4}}{2\cdot \:5}$

$x_{1,\:2}=\frac{13\pm\sqrt{169-80}}{10}$

$x_{1,\:2}=\frac{13\pm\sqrt{89}}{10}$

$x=\frac{13+\sqrt{89}}{10},\:x=\frac{13-\sqrt{89}}{10}\\x\approx2.243, \ or\ x\approx 0.357$

Therefore, the break-even sales amounts is 36 or 224.

7 0

3 years ago

If P(x) = ax 3 + bx - 3 and P(-1)-0, then the value of P(1) is:

sergey [27]

Answer:

(a) -6

Step-by-step explanation:

P(x) = ax^3 +bx - 3

P(-1) = -a-b-3 = 0
therefore a+b=-3
P(1) = a+b-3
P(1) = -3 - 3 = -6
(a)

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3 years ago

Not understanding what to do need gelp

Natasha_Volkova [10]

Answer:

Step-by-step explanation:

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3 years ago

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A researcher has conducted a survey using a simple random sample of 50 licensed drivers to create a confidence interval to estim

Mama L [17]

Answer: the answer is C.

Step-by-step explanation:

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3 years ago

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