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Nonamiya [84]
3 years ago
7

Solve 4sin^2 x-3=0 find two values of sinx that satisfy this equation

Mathematics
1 answer:
Leviafan [203]3 years ago
5 0
4 sin^{2} x-3=0 \\ 4 sin^{2} x=3 \\  sin^{2} x= \frac{3}{4}  \\ sinx= \pm \sqrt{ \frac{3}{4} }  \\ sinx= \frac{ \sqrt{3} }{2}  \ or \ sinx=- \frac{ \sqrt{3} }{2}  \\ x=  \frac{ \pi }{3} , \  \frac{2 \pi }{3} , \  \frac{4 \pi }{3} , \  \frac{5 \pi }{3}
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If their is a cube with 2/3ft what is the surface area?
Arlecino [84]
A cube has 6 sides.

Find 1 side:
1 side = 2/3 x 2/3 = 4/9

Find 6 sides:
6 sides = 4/9 x 6 = 8/3 = 2 2/3 ft²

Answer: 2 2/3 ft²
8 0
3 years ago
Question 4 i need help on!!
MrMuchimi

Answer:

C  20

Step-by-step explanation:

Set up equations:

Laguna's Truck Rentals

y = 2x + 20

Where x is the number of miles driven and y is the total price

<em>How did we get to this equation?</em>

Well, the company charges $2 for every mile driven. Therefore, by multiplying 2 and x, you will find the price paid per mile. The 20 (which represents $20) is the one-time payment you pay for simply using the service.

Salvatori's Truck Rentals

y = 3x

Where x is the number of miles driven and y is the total price

<em>How did we get to this equation?</em>

For this company, you only pay for how many miles you drive. There isn't a one-time payment like there is for Laguna's Truck Rentals. Therefore, you only need to multiply the price per mile ($3) by the number of miles driven (x).

Set the equations equal to each other:

2x + 20 = 3x

<em>Why would you do this?</em>

We need to set the equations equal to each other because we need to find the point at which the prices are the same. When two things are the same, they are equal. Therefore, we get rid of the y variable (which represents the total price) because we want to find the value of x when the equations are equal to one another.

Solve:

2x + 20 = 3x

Subtract 2x on both sides:

2x + 20 = 3x

-2x           -2x

20 = x

When x is equal to 20, or when the number of miles driven is 20, the total price of the Truck Rental services is the same.

Hope this helps :)

4 0
2 years ago
What can be considered as a real-life example of a Linear Function?
adell [148]

Answer:Phynotomas diagram

Step-by-step explanation:

thank you

7 0
2 years ago
Shannon's family is going to install a custom swing set in the backyard. There are 5 kinds of swings and 3 kinds of slides, and
asambeis [7]

Answer:

15 different swing sets

Step-by-step explanation:

The swing set is composed by one swing and one slide.

There is 5 different types of swing, so there are 5 possibilities to fill the one swing we need.

There are 3 different types of slides, so there are 3 possibilities to fill the one slide we need.

So, to find the total number of swing sets, we just need to multiply the swing possibilities and the slide possibilities:

Number of sets = 5 * 3 = 15 different sets

8 0
3 years ago
Thabo invests R50000 at the rate of 5% per annum compound interest periodically every six months.How many years does it take to
lina2011 [118]

Answer:

50000-5%=49500 pls like

7 0
3 years ago
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