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2 years ago

Graph each equation. (i really just need to know the points... ty!)

Mathematics

2 answers:

shutvik [7]2 years ago

8 0

Answer:

(3,0) and (0,-2)

Step-by-step explanation:

by solving for y we get y=2/3x-2

slope being 2/3 and y-intercept being -2

PIcture attached

Download pdf

Ede4ka [16]2 years ago

4 0

Answer:

(0,-2) and (3,0)

Step-by-step explanation:

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-10x+45 find x when x =15

leonid [27]

Your answer is -105 pal

3 0

2 years ago

Read 2 more answers

3x^2(x^3-1)+2x^3(2x^2+2) Whats the simplified answer?

ahrayia [7]

Answer:

$\large\boxed{7x^5+4x^3-3x^2}$

Step-by-step explanation:

$3x^2(x^3-1)+2x^3(2x^2+2)\qquad\text{use the distributive property:}\ a(b+c)=ab+ac\\\\=(3x^2)(x^3)+(3x^2)(-1)+(2x^3)(2x^2)+(2x^3)(2)\qquad\text{use}\ a^na^m=a^{n+m}\\\\=3x^{2+3}-3x^2+4x^{3+2}+4x^3\\\\=3x^5-3x^2+4x^5+4x^3\qquad\text{combine like terms}\\\\=(3x^5+4x^5)-3x^2+4x^3\\\\=7x^5+4x^3-3x^2$

4 0

3 years ago

A tour operator has a bus that can accommodate 20 tourists. The operator knows that tourists may not show up, so he sells 21 tic

dalvyx [7]

Answer:

The expected revenue of the tour operator is 985.

Step-by-step explanation:

There are two outcomes:

Either less than 21 tourists show up and the operator does not have to pay anything. Or 21 tourists show up and the operator has to repay 100.

Anyways, initially he gets the price of all the tickets sold. That is 21 each at 50, so $R = 21*50 = 1050$ .

Then, we need to find the probability that all of the 21 tourists show up. In this case, we have to subtract 100 from the revenue.

Each tourist has a 0.02 probability of not showing up. This means that each has a 1-0.02 = 0.98 probability of showing up. So the probability P that all 21 tourists show up is $P = (0.98)^{21} = 0.6542$ .

So, the expected revenue of the tour operator is

$R = 1050 - 100P = 1050 - 100(0.6542) = 984.58$

Rounded up, the expected revenue of the tour operator is 985.

6 0

3 years ago

Which conversion is correct?

jonny [76]

.75 75% 3/4 is the correct answer

6 0

2 years ago

Keith_Richards [23]

We know that

[volume of a pyramid]=[area of the base]*h/3

a) The scale factor of the smaller pyramid to the larger pyramid in simplest form

12/20----------> 3/5
the answer Part a) is 3/5

(b) The ratio of the area of the base of the smaller pyramid to the base of the larger pyramid

[The ratio of the area of the base of the smaller pyramid to the base of the larger pyramid]--------> (3/5)²------> 9/25------> 0.36

[volume of a larger pyramid]=8192 cm³
h=20 cm
so
[8192]=[area of the base larger pyramid]*20/3
[area of the base larger pyramid]=8192*3/20------> 1228.80 cm²

[area of the base smaller pyramid]=(3/5)²*1228.80-----> 442.37 cm²

The ratio of the area of the base of the smaller pyramid to the base of the larger pyramid-----------> 442.37/1228.8--------> 0.36
0.36--------> is equal to (3/5)²

the answer part b) is 0.36

(c) Ratio of the volume of the smaller pyramid to the larger

[Ratio of the volume of the smaller pyramid to the larger]=(3/5)³---> 27/125
27/125------> 0.216

the answer Part c) is 0.216

(d) The volume of the smaller pyramid

[The volume of the smaller pyramid]=0.216*8192------> 1769.47 cm³

the answer part c) is 1769.47 cm³

8 0

3 years ago