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3 years ago

Seraphina says that angle KLM is a right triangle. Is she correct? Explain.

Mathematics

2 answers:

bezimeni [28]3 years ago

6 0

Answer:

No, she isn't correct

Step-by-step explanation:

It may look like the triangle is a right triangle, and if so it would be that m∠KML is 90 degrees. For the moment, let us assume that it is a right triangle, that ∠KML is 90.

That would mean that Pythagorean Theorem is applicable:

KL^2 = KM^2 + ML^2,

(19)^2 = (12)^2 + (16)^2,

361 = 144 + 256,

361 = 400,

361 ≠ 400,

(This means that Pythagorean Theorem is not applicable, and KLM is not a right triangle)

katovenus [111]3 years ago

4 0

Answer:

Incorrect

Step-by-step explanation:

The angle is acute,which means under right triangle's usual size.

You need at least 90 cm to have a right triangle so no she is incorrect

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Ksenya-84 [330]

Answer:-5

Step-by-step explanation:

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2 years ago

A basketball player stands near the middle of the court and throws the ball toward the basket.

kompoz [17]

Answer:

A function to represent the height of the ball in terms of its distance from the player's hands is $y=\frac{-1}{54}(x-18)^2+12$

Step-by-step explanation:

General equation of parabola in vertex form $y= a(x-h)^2+k$

y represents the height

x represents horizontal distance

(h,k) is the coordinates of vertex of parabola

We are given that The ball travels to a maximum height of 12 feet when it is a horizontal distance of 18 feet from the player's hands.

So,(h,k)=(18,12)

Substitute the value in equation

$y=a(x-18)^2+12$ ---1

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So, y = 6

So, $6=a(0-18)^2+12$

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Substitute the value in 1

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3 years ago

Whole numbers are _____ integers. A.always B.sometimes C.never

gulaghasi [49]

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3 years ago

PLEASE HELP ASAP 25 POINTS

Lisa [10]

We're going to go ahead and eliminate one answer out of the four. It cannot be B (the second answer) because the graph is made of dotted lines.

Dotted Lines = > or <

Solid Lines = ≤ or ≥

Next, let's focus on the straight line on the graph.

The equation for the line is

y = x - 4

Since the shaded region is below the line,

the equation will be y < x - 4

We can now eliminate answer A

Since the second equation is y < - l x - 2 l

It will be shaded below the graph since it uses the ( < ) (less than symbol)

This means the answer is C

Hope I helped, message me if you have any questions : )

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3 years ago

18. Two planes left an airport at the same time. One flew north at a set speed and the other

Andre45 [30]

Answer: plane A = 333.33mph

Plane B = 500mph

Step-by-step explanation:

Given data:

Distance between the two planes = 2400miles.

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Plane B flew south

Solution:

Let v represent plane A.

Let 2v represent plane B.

Distance between the two plane

v + 1.5* v = 3*v

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Plane B has one and half times the speed of plane A

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4 0

2 years ago

Seraphina says that angle KLM is a right triangle. Is she correct? Explain.​

Seraphina says that angle KLM is a right triangle. Is she correct? Explain.