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3 years ago

Can someone help. im really confused

Mathematics

1 answer:

Nikitich [7]3 years ago

3 0

Answer: I think it’s 32

Explanation: on the top there is 3 and 12 and if you multiply 3x4 you get 12 so on the bottom I did 8x4 and got 32. Sorry if it’s wrong I’m not good in math <3

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Let (8,−3) be a point on the terminal side of θ. Find the exact values of cosθ, cscθ, and tanθ.

denis23 [38]

Answer:

$\text{Cos}\theta=\frac{\text{Adjacent side}}{\text{Hypotenuse}}=\frac{x}{R}=\frac{8}{\sqrt{73}}$

$\text{Csc}\theta=-\frac{\sqrt{73}}{3}$

$\text{tan}\theta =\frac{\text{Opposite side}}{\text{Adjacent side}}=\frac{y}{x}=\frac{-3}{8}$

Step-by-step explanation:

From the picture attached,

(8, -3) is a point on the terminal side of angle θ.

Therefore, distance 'R' from the origin will be,

R = $\sqrt{x^{2}+y^{2}}$

R = $\sqrt{8^{2}+(-3)^2}$

= $\sqrt{64+9}$

= $\sqrt{73}$

Therefore, Cosθ = $\frac{\text{Adjacent side}}{\text{Hypotenuse}}=\frac{x}{R}=\frac{8}{\sqrt{73}}$

Sinθ = $\frac{\text{Opposite side}}{\text{Hypotenuse}}=\frac{y}{R}=\frac{-3}{\sqrt{73} }$

tanθ = $\frac{\text{Opposite side}}{\text{Adjacent side}}=\frac{y}{x}=\frac{-3}{8}$

Cscθ = $\frac{1}{\text{Sin}\theta}=\frac{R}{y}=-\frac{\sqrt{73}}{3}$

6 0

4 years ago

I don’t understand please all correct answers

N76 [4]

Answer:

see below

Step-by-step explanation:

1) 2 / 3

2) 3 / 5

3) 5 / 2

4) 3

5) 5

6) 3 + 2 = 5

7) 15

8) 3 x 5 = 15 golden

2 x 5 = 10 dwarf

5 0

4 years ago

Need the answer please and thank you

klasskru [66]

Hi there,

There appears to be no question....

3 0

3 years ago

Linda won $200,000 in a state lottery. She first paid income tax on 30% on the winnings. She invested some of the rest at 1.5% a

Lady_Fox [76]

She invested $ 50000 at 1.5% rate and $ 90000 at 4% rate.

Explanation

Total amount of winnings = $ 200000

She first paid income tax on 30% on the winnings. So, the amount paid as income tax $=(200000*0.30)dollar=60000$ dollar.

Remaining amount = $ 200000 - $ 60000 = $ 140000

Suppose, she invested $x$ dollar at 1.5% rate.

That means, she invested $(140000-x)$ dollar at 4% rate.

Given that, the total amount of interest earned = $ 4350

So, the equation will be.....

$0.015x+0.04(140000-x)=4350\\ \\ 0.015x+5600-0.04x=4350\\ \\ -0.025x= 4350-5600\\ \\ -0.025x=-1250\\ \\ x= \frac{-1250}{-0.025}=50000$

So, amount of investment at 1.5% rate = $ 50000

and amount of investment at 4% rate = $ 140000 - $ 50000 = $ 90000

5 0

4 years ago

Explain and correct the error made by a student who simplified this expression.

blagie [28]

Answer:

7x+54

Step-by-step explanation:

because you distribute the 7 to the x and the 8 first then you bring that down which becomes 7x+56 then you to the addition so you do 56+-2 which would give you 54.

4 0

4 years ago