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3 years ago

What is 12-42 simplified

Mathematics

1 answer:

Katena32 [7]3 years ago

5 0

12/42 simplified is 2/7 You divide both by 6

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An airport shuttle charges 15$ plus 1.15$ per mile. An equation is written as y = mx + b, where y is the cost for x miles. (plea

fomenos

Y=15$ and x=1.15$ per mile

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3 years ago

All the applicants chose at least one of the three countries Egypt, Ghana and South Africa. A total of 2417 applicants chose Egy

cestrela7 [59]

Answer:

hard quiz

Step-by-step explanation:

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3 years ago

¿Cuanto es el 15% de 9,000?

bazaltina [42]

Answer:

10% = 900

5% = 450

15% = 1,350

Please brainliest

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3 years ago

Evaluate the function f(x)=x^2+6x+2 at the given values of the independent variable and simplify.

____ [38]

Answer:

a) 18

b)x^2+10x+18

c)x^2 -6x+2

Step-by-step explanation:

This is a case of plugging in the value into f(x).

a) f(-8)= -8^2 + 6(-8) +2

f(-8)= 64 + (-48) +2

f(-8)=64 + (-46)

f(-8)=18

b) f(x+2)= (x+2)^2+6(x+2)+2

So here I'll take a break to explain what's going on, because x+2 is a binomial meaning two terms and it is being squared I have to multiply the whole thing by itself. Meaning: (x+2) x (x+2), this is also known as foiling!! and for the next part its distributing 6 into x and 2.

f(x+2)= x^2+4x+4+6x+12+2

I'll reorder it

f(x+2)= x^2+4x+6x+12+2+4

f(x+2)= x^2+10x+18

c) f(-x)= -x^2+6(-x) +2

f(-x)= x^2 -6x+2

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3 years ago

A Food Marketing Institute found that 39% of households spend more than $125 a week on groceries. Assume the population proporti

Anuta_ua [19.1K]

Answer:

0.6210

Step-by-step explanation:

Given that a Food Marketing Institute found that 39% of households spend more than $125 a week on groceries

Sample size n =87

Sample proportion will follow a normal distribution with p =0.39

and standard error = $\sqrt{\frac{0.39(1-0.39)}{87} } \\=0.0523$

the probability that the sample proportion of households spending more than $125 a week is between 0.29 and 0.41

= $P(0.29$

There is 0.6210 probability that the sample proportion of households spending more than $125 a week is between 0.29 and 0.41

7 0

3 years ago