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3 years ago

PLEASE DONT GUESS I HAVE TO GET THIS QUESTION CORRECT!!! 20 POINTS

Mathematics

1 answer:

tankabanditka [31]3 years ago

8 0

oops i just did :)

Point-slope form is y - y_1 = m (x - x_1) where x_1 and y_1 are the given coordinates and m is the slope. When you plug the given values into the equation you get y - 3 = 6 (x - 8) .

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9. Lula bought new furniture on her credit card for $993. If she pays it off in 6 months there will be no interest on her purcha

nata0808 [166]

Answer:

$165.50 dollars

Step-by-step explanation:

$993 / 6 = $165.50

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3 years ago

I need help pleaseeeeee nowplease

marysya [2.9K]

This is a pretty complex problem

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3 years ago

Please help me find the area of the triangle in terms of x!

Vitek1552 [10]

Answer:

$Solution,\\Area~of~triangle=\frac{1}{2} (base)(height) = \frac{1}{2}(2x+\frac{1}{4}) (x-8)\\~~~~~~~~~~~~~~~~~~~~~~~~ =\frac{1}{2}[2x^2-16x+\frac{1}{4}x-\frac{1}{4}(8)]\\ ~~~~~~~~~~~~~~~~~~~~~~~~ =\frac{1}{2}[2x^2-\frac{63}{4}x - 2]\\~~~~~~~~~~~~~~~~~~~~~~~~=x^2-\frac{63}{8}x-1$

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3 years ago

Blaine is on vacation in New York City and wants to collect magnets of places he visits to give to all his friends. The Times Sq

julsineya [31]

For Times Square magnets, we have that the price of each magnet is 2 dollars / magnet, there are 4 magnets / set, and Tom buys 12 sets. For Statue of Liberty magnets, the price is 3 dollars / magnet, there are 5 magnets / set, and Tom buys 12 sets

We can make a table of these values:

Magnets Price ($$/magnets) Set Size (magnets/set) Quantity (sets)

T.S. 2 4 12

S. of L. 3 5 12

Now, we can use the formula

Total Cost = Number of Magnets Bought * Price = (Quantity * Set Size) * Price

So we see that

Cost of T.S. magnets = Quantity * Set Size * Price

= 12 sets * 4 magnets * 2 dollars = $96

set magnet

Cost of S. of L. magnets = Quantity * Set Size * Price

= 12 sets * 5 magnets * 3 dollars = $180

set magnet

So the total amount spent was $96 + $180 = $276.

5 0

3 years ago

4. Thoughtful Politicians [This problem setting is due to Prof. James Norris of Cambridge University.] In a group of 100 politic

kirill [66]

Answer:

Step-by-step explanation:

The focus is on Party 2, because as already said, Party 1 members NEVER change their minds on anything!

There are 60 politicians in Party 2. They change their minds completely-randomly every day.

Tomorrow, the politicians will vote on a proposition: Proposition 88, but today, 10 are in favor of it while 50 are against it.

Each member changes their mind based on the toss of a coin (a fair/unbiased coin; since it was not stated that the coin is biased). A fair coin has a 0.5 probability of landing HEADS and same 0.5 probability of landing TAILS.

What is the distribution of the number of members in Party II who will favor Prop 88 tomorrow?

The number of figures in the distribution will depend on the number of times the coin is tossed, between today and tomorrow.

<em>KEY: </em><em>Assuming the coin is tossed 12 times between today and tomorrow AND assuming that half of the time - 6 times - it landed HEADS and half of the time, TAILS (Head and Tail simultaneously).</em>

Beginning with HEADS, the distribution of the number of members who will favor the proposition tomorrow, is:

50, 10, 50, 10, 50, 10, 50, 10, 50, 10, 50, 10

4 0

3 years ago