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3 years ago

Write two expressions that are equivalent to 4n -5.

Mathematics

1 answer:

Mazyrski [523]3 years ago

7 0

-5+4n and 4n+(-5), that is the answer

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at a point P on the parabola x^2=4ay a normal PK is drawn. From vertex O, a perpendicular OM is drawn to meet the normal at M. S

saveliy_v [14]

<span>Answer: Its too long to write here, so I will just state what I did. I let P=(2ap,ap^2) and Q=(2aq,aq^2) But x-coordinates of P and Q differ by (2a) So P=(2ap,ap^2) BUT Q=(2ap - 2a, aq^2) So Q=(2a(p-1), aq^2) which means, 2aq = 2a(p-1) therefore, q=p-1 then I subbed that value of q in aq^2 so Q=(2a(p-1), a(p-1)^2) and P=(2ap,ap^2) Using these two values, I found the midpoint which was: M=( a(2p-1), [a(2p^2 - 2p + 1)]/2 ) then x = a(2p-1) rearranging to make p the subject p= (x+a)/2a</span>

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3 years ago

Darlene kicks a soccer ball off the ground and in the air, with an initial velocity of 34 feet per second. using the formula h(t

monitta

Answer:

18.1 is the answer. I am glad I could help.

7 0

3 years ago

Read 2 more answers

What is the measure of the angle x?

qaws [65]

Answer:

30 degrees

Step-by-step explanation:

Brainliest me

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3 years ago

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Plssssss helppppppppp

madam [21]

Answer:

$1,385.44 {ft}^{2}$

<h3>4th answer is correct</h3>

Step-by-step explanation:

$\pi {r}^{2} \\ \pi \times 21 \times 21 \\ = 1,385.44 {ft}^{2}$

7 0

3 years ago

I really need helppppp

Dmitry [639]

Answer: the distance of the boat from the foot of the lighthouse is 290.5 feet.

Step-by-step explanation:

The right angle triangle ABC representing the scenario is shown in the attached photo.

Angle A is alternate to the angle of depression, hence, they are the same.

The height of the lighthouse represents the opposite side of the right angle triangle. The distance, x of the boat from the foot of the lighthouse represents the adjacent side of the right angle triangle.

To determine x, we would apply

the tangent trigonometric ratio.

Tan θ, = opposite side/adjacent side. Therefore,

Tan 11.1 = 57/x

x = 57/Tan 11.1 = 57/0.1962

x = 290.5 feet to the nearest tenth.

6 0

3 years ago