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3 years ago

What are the zeros of 27x^3-1

Mathematics

1 answer:

Marianna [84]3 years ago

7 0

Answer: x-intercept(s):(1/3,0) y-intercept(s):(0,−1)

Step-by-step explanation:

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2x - 3y = 8 -2x + 6y = -20 x = ? y = ? solve the system of equations

Zolol [24]

Answer:

x = 4 + 3/2y

y = -8/3 + 2/3x

1. Finding X

2x-3y=8

2x=8+3y

x+4+3/2y

2. Finding Y

2x-3y=8

-3y=8-2x

y=-8/3+2/3x

7 0

3 years ago

How many whole sandwiches can be made with 2 pounds of cheese if each sandwich has 3 ounces of cheese on it

mariarad [96]

10 whole sandwiches can be made with 2 pounds of cheese if each sandwhich has 3 ounces of cheese on it.

2 pounds = 32 ounces

32/3 = 10.67

6 0

3 years ago

Read 2 more answers

Dhruv is at a car dealership. He is going to randomly select a vehicle to test drive. There are 13 trucks, 8 vans, and 4 compact

qaws [65]

P(compact car) = number of compact cars / total number of cars = 4/25 = 16%

5 0

4 years ago

Read 2 more answers

How much further does jane travel then her trainer?

bekas [8.4K]

So her trainer travels 20miles(using the Pythagoras theorem) while she travels 12+16=36 so the answer is 36-20=16

3 0

3 years ago

Pls help! evaluate the sine of the real number, pls give exact answers

solong [7]

Answer:

$-\frac{\sqrt2}{2} \\$ or exact is −0.70710678...

Step-by-step explanation:

Getting the point!

If we look at the unit circle and we find $-\frac{3\pi }{4}$ we see it is in the 3rd quadrant.
We know that all points in the 3rd quadrant have both negative x and negative y values.
We know that all radians with the base of 4 on the unit circle have the points of $(\frac{\sqrt{2}}{2} ,\frac{\sqrt{2}}{2})$
Because we are in the 3rd quadrant and both x and y are negative we know the point of $-\frac{3\pi }{4}$ is $(-\frac{\sqrt{2}}{2}, -\frac{\sqrt{2}}{2})$

Finding the sin!

Because we know that sin is asking us for the y value
We can just look at the point and find the y value!
the y value is $-\frac{\sqrt2}{2} \\$
Because this fraction does not need to be rationalized we are good!
Use a calculator to find the exact value and you get -0.70710678...
The final answer is $-\frac{\sqrt2}{2} \\$ or exact is −0.70710678...

Hope this helps!! Please mark Brainliest!

4 0

2 years ago