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3 years ago

Which number line shows the solution of 4x - 36 < -12?

Mathematics

1 answer:

attashe74 [19]3 years ago

6 0

the scanner will help u have u tried it yet

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Galactic Rotation Speed. We are located about 27,000 light-years from the galactic center and we orbit the center about once eve

Alexxandr [17]

Answer:

speed = 796142.197 km/hr

Step-by-step explanation:

solution

we consider here orbit around galactic center is circular so

circumference formula will be here

circumference C = 2πr ........1

here we know r = 27000

circumference C = 2 π × 27000

C = 169560 light year

we travel 169560 light year in 230000000 years

so distance will be

distance = $\frac{169560}{230000000}$

distance = 0.00073721 light year/year

and we know 1 year = 8760 hours

so 1 light year = 9.46027 × $10^{12}$ km

sped of moving is

speed = 0.00073721 × 9.46027 × $\frac{10^{12}}{8760}$ km/hr

speed = 796142.197 km/hr

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3 years ago

The assistant manager of a surf shop estimates that 65% of customers will make a purchase. Part A: How many customers should a s

Ivan

Answer:

A) 2

B) 0.239

Step-by-step explanation:

Part A) Expected value of a binomial distribution is the number of trials times the probability of success.

X = np

Given X = 1 and p = 0.65:

1 = 0.65n

n = 1.54

Rounding up, a salesperson should expect 2 customers until he finds a customer that makes a purchase.

Part B) Use binomial probability.

P = nCr pʳ qⁿ⁻ʳ

where n is the number of trials,

r is the number of successes,

p is the probability of success,

and q is the probability of failure (1−p).

Given n = 3, r = 1, p = 0.65, q = 0.35.

P = ₃C₁ 0.65¹ 0.35³⁻¹

P ≈ 0.239

Or, using binompdf function in a calculator:

binompdf(n, p, r)

= binompdf(3, 0.65, 1)

≈ 0.239

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3 years ago

94% of salmon pass through a single dam unharmed. By what percent does the number of salmon decrease when passing through a sing

professor190 [17]

Answer:

Step-by-step explanation:

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2 years ago

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Step-by-step explanation:

I'll do it but what is it about

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2 years ago

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How to find y coordinate? Here are my x coordinates and this is the given formula:

Luda [366]

Y=x-3x+1
y=2-3(-4)+1
y=15

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2 years ago