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2 years ago

ASAP HELP HELP HELP i j need to find the cos NO LINKS

Mathematics

1 answer:

Tema [17]2 years ago

7 0

Answer:

Step-by-step explanation:

Hyp = √(3² + √34²) = √43

cosR = adj/hyp = 3/√43

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Where does the point (0, - 3) lie?

gregori [183]

An ordered pair is written like this, ( x, y ). In this case x = 0 and y = -3. On a graph the vertical line is the y-axis and the horizontal line is the x-axis. The origin is point ( 0, 0 ). To the left of the origin on the x-axis is the negative number line and to the right is the positive number line. On the y-axis, south of the origin is the negative number line and north is the positive number line. When you plot a point on a graph you do x first, so if x equals 1, you would move one right, -1, one left. IF y were to equal 2 then from the place where you are on the x-axis, 1, you would move two up, -2, two down. In this case x = 0 so you would stay at the origin, and y = -3 so you would move 3 down. So ( 0, -3 ) would lie negative y-axis. The answer is D.

3 0

2 years ago

A hockey player strikes a hockey puck. The height of the puck increases until it reaches a maximum height of 3 feet, 55 feet awa

MariettaO [177]

Answer:

The maximum height of the second pluck is greater than that of the first pluck, hence the second pluck travels further

Also the distance of the maximum height of first pluck from the player is less than the distance of the second pluck from the player hence the second pluck travels further

Step-by-step explanation:

From the question we are told that

The maximum height of the first pluck is $h_1 = 3 \ ft$

The height of the second height is mathematically represented as

$$y=x\left(0.15-0.001x\right)$

=> $y=0.15x -0.001x^2$

Generally at maximum height $y' = 0$

$y'=0.15 -0.002 x = 0$

=> $x = 75 \ ft$

Here 75 ft is the horizontal distance the second pluck traveled at maximum height

So the maximum height of the second pluck is mathematically represented as

$y=0.15(75) -0.001(75)^2$

=> $y= 5.625 \ ft$

So comparing the maximum height of the first and the second pluck we see that the maximum height of the second pluck is greater than that of the first pluck, hence the second pluck travels father

3 0

3 years ago

Its asking to expand and simplify an expression for the area of this rectangle.

Anettt [7]

Answer:

4x^2 + 11x - 20

Step-by-step explanation:

area is width X height
multiply the width (4x - 5) and the height(X + 4)
I always imagine a multiplication grid for this kind of problem, with X and +4 at the top and 4x and -5 going down, and then combine terms
you get 4x^2 + 11x - 20

7 0

1 year ago

Read 2 more answers

A tray can hold 9 milk bottles. There are 9063 milk bottles in a dairy farm. After packing the milk bottles in the trays,10 tray

Lemur [1.5K]

Answer:

1017

Step-by-step explanation:

9063/9=1007

1007+10=1017

3 0

2 years ago