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2 years ago

Angles use the diagram at the right (HELP PLEASE)

Mathematics

2 answers:

Helga [31]2 years ago

6 0

I need help to because ye this is hard

irinina [24]2 years ago

6 0

It’s the one in between the 4 and 6

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The graph shows a proportional relationship. Which equation matches the

Elan Coil [88]

Answer:

The answer is C.

Just trust me.

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2 years ago

Doug hits a baseball straight towards a 15 ft high fence that is 400 ft from home plate. The ball is hit 2.5ft above the ground

Scorpion4ik [409]

Answer:

$125.4\ \text{m/s}$

Step-by-step explanation:

u = Initial velocity of baseball

$\theta$ = Angle of hit = $30^{\circ}$

x = Displacement in x direction = 400 ft

y = Displacement in y direction = 15 ft

$y_0$ = Height of hit = 2.5 ft

$a_y$ = g = Acceleration due to gravity = $32.2\ \text{ft/s}^2$

t = Time taken

Displacement in x direction

$x=u_xt\\\Rightarrow x=u\cos\theta t\\\Rightarrow t=\dfrac{x}{u\cos\theta}\\\Rightarrow t=\dfrac{400}{u\cos30^{\circ}}\\\Rightarrow t=\dfrac{400}{u\dfrac{\sqrt{3}}{2}}\\\Rightarrow t=\dfrac{800}{u\sqrt{3}}$

Displacement in y direction

$y=y_0+u_yt+\dfrac{1}{2}a_yt^2\\\Rightarrow y=y_0+u\sin\theta t+\dfrac{1}{2}a_yt^2\\\Rightarrow 15=2.5+u\sin30^{\circ}(\dfrac{800}{u\sqrt{3}})+\dfrac{1}{2}\times -32.2\times (\dfrac{800}{u\sqrt{3}})^2\\\Rightarrow \dfrac{400}{\sqrt{3}}-\dfrac{10304000}{3u^2}-12.5=0\\\Rightarrow 218.44=\dfrac{10304000}{3u^2}\\\Rightarrow u=\sqrt{\dfrac{10304000}{3\times218.44}}\\\Rightarrow u=125.4\ \text{m/s}$

The minimum initial velocity needed for the ball to clear the fence is $125.4\ \text{m/s}$

5 0

3 years ago

What is 6(5-8v)+12=-54

stira [4]

V=2 bc when u distribute the 6 to the numbers in the parenthesis u get 30-48v+12=54 then u subract 12 on both sides getting 30-48v=-66 then u subtract 30 on both sides making it -48v=-96 and mental math leads to -48•2=-96

4 0

3 years ago

Read 2 more answers

1) What is the slope of x+y=4?

Lerok [7]

1) y=-x+4, the slope is -1
2)y=-x+4, slope is -1
3) yes
4)It's the same line if the slopes and y-intercepts are the same, so the number of corresponding points are infinite.

5 0

3 years ago

You and five of your friends ordered your tickets online together. JetBlue ticket prices cost $289 round-trip including tax. The

baherus [9]

Answer:

y= 288x + 7.99

Step-by-step explanation:

# of tickets : x

y = 289x + 7.99

⬇️ _________ put in y = mx + b

y = 289(6) + 7.99

⬇️ _________ plug in

y = 1734 + 7.99

⬇️ _________ Add

y = 1741.99

HOPE THIS HELPS! (:

5 0

3 years ago