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4 years ago

Find the nonpermissible replacement for n in this expression

Mathematics

2 answers:

____ [38]4 years ago

8 0

I believe the answer is -4

natima [27]4 years ago

3 0

It would be -4. multiplying 2 and -4 makes -8, and combining that with 8 makes it 0. you can’t divide by zero!

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A stone is thrown vertically upward from a platform that is 20 feet height at a rate of 160 ft/sec. Use the quadratic function h

Nutka1998 [239]

Check the picture below.

$\textit{vertex of a vertical parabola, using coefficients} \\\\ y=\stackrel{\stackrel{a}{\downarrow }}{-16}x^2\stackrel{\stackrel{b}{\downarrow }}{+160}x\stackrel{\stackrel{c}{\downarrow }}{+20} \qquad \qquad \left(-\cfrac{ b}{2 a}~~~~ ,~~~~ c-\cfrac{ b^2}{4 a}\right)$

$\left(-\cfrac{ 160}{2(-16)}~~~~ ,~~~~ 20-\cfrac{ (160)^2}{4(-16)}\right) \implies \left( - \cfrac{ 160 }{ -32 }~~,~~20 - \cfrac{ 25600 }{ -64 } \right) \\\\\\ \left( 5 ~~~~ ,~~~~ 20 +400 \right)\implies (\stackrel{seconds}{5}~~,~~\stackrel{feet}{420})$

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2 years ago

b) Chill Pill Pharmaceuticals is expecting a growth rate of 14% for the next two years due to its new drug. Thereafter it should

Wittaler [7]

Answer:

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Step-by-step explanation:

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3 years ago

If a sample of 66 employees were taken from a population of 820 employees,

ozzi

Answer:

b. 66

Step-by-step explanation:

s2 Could refer to the variance of the 66 employees' salaries

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3 years ago

A prism has the base given below. If the height of the prism is 9 units, what is the volume of the prism

baherus [9]

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3 years ago

Read 2 more answers

In April, a Jamaican tourist changed JM $50,000 into American currency. Calculate the amount of US dollars he received. USD $1.0

suter [353]

Answer:

USD $342.47

Step-by-step explanation:

For these kinds of questions, I like to use what I call the 'I want... If' method. I'll walk you through my thought process. Essentially, when I write my formula, I think, 'I want to find out how many US dollars I can receive from JMD $50,000 if JMD $146 is USD $1.

Essentially, the 'I want to find out... $50,000' part goes in the nominator of a fraction. 'If JMD $146' goes in the denominator of the same fraction. Then, add a multiply operator and finally 'is USD $1' goes after the operator.

In working, it looks like this:

JMD $ $\frac{50000}{146}$ x USD $1 = USD $342.4657534247 = USD $342.47 (To 3 s.f.)

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3 years ago