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4 years ago

Which is the better buy?

1 answer:

7 0

B seems right, because 12 cups = .75 of a gallon but if you were to buy two that would be 24 cups= 1.5 gallons and that would only be $14.40

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Find the average rate of change of the function over the given interval.. h(t) = cot t, intervals given [pi/4, (3pi)/4]. I've go

Phantasy [73]

<span>Hi! All you need to know is that cot stands for cotangent and its the reciprocal of tan i.e. cot(x) = 1/tan(x). You probably know that tan(pi/4) = 1 and that tan(3pi/4) = -1. Happily in these cases it means that cot and tan come out the same (1/1 = 1 and 1/-1 = -1). -1 - (+1) = -2 and this divided by pi/2 = -2/(pi/2) which looks a bit untidy so multiply the top and bottom by 2 (to get rid of the 2 in pi/2) and the answer is -4/pi. HTH</span>

3 0

4 years ago

The sale price of ground beef at a local grocery store is $1.49 for the first pound and $1.09 for each additional pound. Which f

cricket20 [7]

Answer:

y=1.09x+0.4

Step-by-step explanation:

Let's assume that the price of beef stays the same for every pound of beef (the first pound is also $1.09)

Then, the equation would be, it y was the cost, and x was pounds:

y=1.09x

But, the price of beef is not the same for the first pound.

The first pound costs an extra 1.49-1.09=0.4 dollars a pound, so we will add that to the equation.

y=1.09x+0.4

6 0

4 years ago

You owe $2,348.62 on a credit card with an 8.75% APR. You pay $300.00 toward the card at the beginning of the month. What is the

Svetach [21]

For the first question;
To calculate the interest accrued from the total amount and compare it from the $300 that is initially paid for the card, there's a need to get 8.75% from $2,348.62. This is possible by multiplying $2,348.62 by 0.0875, which will give a result of $205.50. So it's difference from $300 is $94.50.

For the second question;
Given the interest is $205.50, it needs to be added to the total amount which generates a result of $2554.12. Next, deduct $300 from it for the payment made in the previous month, and divide it by $600. This will result to an answer of 3.76 - the number of months to pay off the debt.

8 0

3 years ago

M&M plain candies come in various colors. According to the M&M/Mars Department of Consumer Affairs, the distribution of

lyudmila [28]

Answer:

A) 0.12. Yes. Choosing a green and blue M&M is possible

B) 0.43. Yes. Choosing a yellow and red M&M is possible

C) 0.78

Step-by-step explanation:

First of all, the summation of the distribution of all colours is;

Σ(all colors ) = 22% + 20% + 23% + 10% + 6% + 6% + 13% = 100%, or 1.

Thus;

a) P(green candy or blue candy) is;

P(GREEN ∪ BLUE) = P(G) + P(BL)

P(GREEN ∪ BLUE) = 6%+6%

P(GREEN ∪ BLUE) = 12% or 0.12

Now, due to the fact that we have to choose ONE candy and only ONE candy at random, then they are mutually exclusive: Yes. Choosing a green and blue M&M is possible

b)P(yellow candy or red candy is;

P(YELLOW ∪ RED) = P(Y) + P(R)

P(YELLOW ∪ RED) = 20% + 23% = 43% or 0.43

Yes. Choosing a yellow and red M&M is possible

c) P(NOT PURPLE)

the probability of having a purple is;

P(PURPLE) = 22% or 0.22

So, the Probability of NOT having a PURPLE is 1 - 0.22 = 0.78

4 0

3 years ago

At the beginning of a business day a banks vault held 575,900. by the end of the day 3.5 x 10 to the 3rd power was added. how mu

mr_godi [17]

Answer:

3.5*10^3=3,500

3,500+ 575,900=579,400

Step-by-step explanation:

7 0

3 years ago