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EleoNora [17]
3 years ago
12

What is tan(Cos^-1 8/17)

Mathematics
1 answer:
Brrunno [24]3 years ago
5 0

Answer:

<em>Exact Form: </em>

\frac{15}{8}

<em>Decimal Form: </em>

1.875

<em>Mixed Number Form: </em>

\frac7{8}{1}

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Which is the focus of a parabola with equation y2 = 4x?
statuscvo [17]

Answer:

(1, 0)

Step-by-step explanation:

Please write this as y^2 = 4x; the " ^ " indicates exponentiation.

The appropriate equation for a horizontal parabola that opens to the right is

y^2 = 4px

Here, we are told that  y^2 = 4x; this tells us that 4p = 4, and so p = 1.  

Again, this parabola is a horizontal one and it opens to the right.  p = 1 is the distance of the focus from the vertex, and in this case p = 1.  Thus, the focus is at (1, 0) (situated on the x-axis).

6 0
3 years ago
Rewrite the equation for x, and express its value in terms of a.<br><br><br> 3/a x-4=20
Allushta [10]

Answer:

x=8a

Step-by-step explanation:

3/a x-4=20

We need to solve for x

Add 4 to each side

3/a x-4+4=20+4

3/a x = 24

Multiply each side by a/3 so we can get x alone

a/3 *3/a x = 24 * a/3

x = 8a

4 0
3 years ago
Read 2 more answers
Needing help with some of my college summer HW
Arte-miy333 [17]

B. Half the speed of the car. and C. The number of different colors on the page.


Variables are symbols for unknown values, so you have to find the statements that contain an unknown value.


A. 27 ⇒ The point value is known, so there is no variable.

B. \frac{1}{2}X ⇒ Since the speed of the car is unknown, the variable X represents the speed of the car. This variable is multiplied by \frac{1}{2} or divided by 2 to get half the speed of the car.

C. X ⇒ The number of different colors is not known, so the variable X represents the number of different colors.

D. 80 ⇒ There is nothing unknown in the statement.


5 0
3 years ago
Solve the formula for the specific variable <br> Z=x-y/3<br> Y=____
defon

Answer:

-3(z-x) = y

Step-by-step explanation:

Z=x-y/3

Solve for y

Subtract x from each side

z-x = x- y/3 -x

z-x = -y/3

Multiply each side by -3

-3(z-x) = -y/3 * -3

-3(z-x) = y

7 0
2 years ago
If a line passes through the points (2.5,3.5) and (4.5,7.5) the equation of the line is y-7.5=2(x-_)
Scrat [10]
(7.5-3.5)/(4.5-2.5)= 4/2= 2

y - 7.5 = 2(x - 4.5): the answer

To complete: y - 7.5 = 2x - 9
y = 2x - 1.5
3 0
2 years ago
Read 2 more answers
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