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lisabon 2012 [21]
3 years ago
7

I need help with pre calculus homework

Mathematics
1 answer:
Vesnalui [34]3 years ago
4 0
Cos^2 + cos^2 tan^2 (break the brackets)

Cos^2+ cos^2 • sin^2/cos^2 (divide out the cos^2)

Cos^2+ sin^2 (Cos2+ sin^2= 1)
= 1
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A person invests 6500 dollars in a bank. The bank pays 6.5% interest compounded annually. To the nearest tenth of a year, how lo
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The person needs to leave it for 4 mores years to reach 22600 dollars. please give Brainliest :)
7 0
2 years ago
Find the probability. An IRS auditor randomly selects 3 tax returns (without replacement) from 47 returns of which 5 contain err
grin007 [14]
Number of returns = 47
Number of returns that contain errors = 5
Number of returns that does not contain error = 47 - 5 = 42

P(selecting none that contains error in the unreplaced selection) = 42/47 x 41/46 x 40/45 = 68880 / 97290 = 0.708

option C is the correct answer.
8 0
2 years ago
Please need help I will be MARKING as BRIANILIST. thank you so much. ​
Marina86 [1]

Answer:

a. (3,11) (4,15) (5,19) (6,23)

b. it's not proportional because b (from y=mx+b) is not 0

c. the equation is y = 4x - 1

d. graph the y-int (-1) on the y-intercept and then connect the points in a.

Step-by-step explanation:

5 0
3 years ago
750 tickets were sold for a game for a total of $1,400.00. If adult tickets sold for $2.50 and children's tickets sold
postnew [5]

Answer:

They sold 750

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3 0
3 years ago
The coordinate plane has the following points A=(2, 1), B=(5, 1), C=(7,2), and 1 point
dusya [7]

Answer:

<em>d = 3</em>

Step-by-step explanation:

Coordinate Plane

The image provided shows the four points given:

A=(2, 1), B=(5, 1), C=(7,2), D=(4,2).

It can be clearly seen the length of CD is just the difference of their x-coordinates:

CD = 7 - 4 = 3

We can also use the formula of the distance.

Given two points C(x,y) and D(w,z), the distance between them is:

d=\sqrt{(z-y)^2+(w-x)^2}

d=\sqrt{(2-2)^2+(7-4)^2}

d=\sqrt{0^2+3^2}

d=\sqrt{9}

d = 3

3 0
3 years ago
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