1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nina [5.8K]
3 years ago
15

What is the length of EF in the right triangle below?

Mathematics
2 answers:
Lyrx [107]3 years ago
8 0

Answer:

\sqrt(217)

Step-by-step explanation:

(19)^2=(12)^2

361 - 144 + 217

\sqrt(217)


andriy [413]3 years ago
8 0

Answer:

\sqrt{217}units

Step-by-step explanation:

Given : A right angled triangle EFD

           Hypotenuse = ED=19 units

           Base = DF =12 units

           Perpendicular = EF

Solution:

To find length of EF we will use Pythagorean Theorem:

(Hypotenuse)^{2}=(Perpendicular)^{2}+(Base)^{2}

ED^{2}=EF^{2}+DF^{2}

19^{2}=EF^{2}+12^{2}

361=EF^{2}+144

361-144=EF^{2}

217=EF^{2}

\sqrt{217} =EF

Thus the length of EF is \sqrt{217}units

You might be interested in
Please help, no links or you're getting reported and yourass is done
kvv77 [185]

What is there to answer! AH HA HA HA.

*smacks keyboard on head*

Please read this.

Why am I running for president of the United States of America? That’s a good question, and perhaps there’s no good way to answer it. Or perhaps there is a good way to answer it. Either way, it’s a good question and I’m glad it was asked.

I want to talk a little bit about our nation’s opinion. Before this speech, a man named Robert Exley came up to me. Robert is a artist, a very noble profession. He was holding his small daughter, Emily, an adorable 3-year-old who was recently diagnosed with leukemia. He is a straight shooter, and came up to me and asked me a question I can't forget: “Hey, Cameron, do you like children?” And I looked him straight in the eye and said, “Yes, Robert, I do.” Maybe that’s not a popular opinion, but it’s what I believe.

The state of our economy is in a constant flux. Every single day, the stocks go up or go down or will stay the same. If elected president, I will ask the Federal Reserve to take a good long look at the interest rate and decide whether or not to change it. If elected president, I will create jobs where there are none, and where there are jobs, I will create internships.

And to those of you who would say, “I don’t think children are our future,” I must say in the strongest of terms: “I disagree.” Sometimes you have to take a stand for what you believe in like I do. We all should.

I will say our country is sharply divided over a war that is being waged in this land, all lands. My views on this war are clear: it is happening, it is happening in everywhere, and it will continue to happen until it is cured.

What do you mean by cured?

Well is a virus, specifically one called Coronavirus...

Some people believe we should withdraw all the activities we do now. Some people believe we do all the activities we want to right now. Some people believe we should stay and fight it until we’ve established a stable nation. Some people feel like we have handed over control to the virus. I feel we should fight it and develop a cure to live in a country with our deserved freedom, we cannot and will not hand it over to a virus.

We all need some socializing, not like you kind people are doing today but instead what activities you would prefer to do.

- I care deeply about social service programs and providing opportunities for low-income households

- provide free tuitions for doctors

- close the income gap and raise the minimum wage

- I appreciate everyone who wakes up every day and works hard for their community

Sound goods?

4 0
3 years ago
Read 2 more answers
Find the value of 9x + 4y when x = 4 and y = -3
Serga [27]

Answer:

24

Step-by-step explanation

since the values are given, we can rewrite this equation.

(9 x 4) + (4 x -3)

36 + -12

24

5 0
3 years ago
Read 2 more answers
F(x) = x + 2<br> g(x) = x-4<br> (f g)(x) =
Yanka [14]

Answer:

f(g(x))=(x-4)+2

Step-by-step explanation:

Plug in the equation from g(x) into the x in f(x) and solve.

3 0
4 years ago
A ball is projected up into the air from the surface of a platform to the ground below. The height of the ball above the ground,
mezya [45]

Answer:

  • 112 ft
  • 3 - 7 seconds interval

Step-by-step explanation:

<u>Given function:</u>

  • f(t) = -16t² + 96t + 112

<u>The height of the platform is the y-intercept, when t = 0:</u>

  • f(0) = - 16*0 + 96*0 + 112 = 112 ft

The ball's height is decreasing once it reaches the maximum, which is at vertex.

<u>The vertex is at x = -b/2a:</u>

  • t = - 96/ - 32 = 3

<u>The ball hits the ground when f(t) = 0:</u>

  • - 16t² + 96t + 112 = 0
  • t² - 6t - 7 = 0
  • (t - 7)(t + 1) = 0
  • t = 7 (positive root)

The interval is between 3 seconds and 7 seconds

8 0
2 years ago
If m=35cm and n=37cm what is the length of I
Virty [35]
N^2 = m^2 + l^2. 1295 is the answer.
6 0
4 years ago
Other questions:
  • The temperature on Mars may reach
    8·1 answer
  • If an apple is hanging from a string and three flies land on it, find the probability that all three are on points that are with
    12·1 answer
  • Customers experiencing technical difficulty with their Internet cable hookup may call an 800 number for technical support. Itake
    9·1 answer
  • A recipe requires 3 cups of sugar for every 4 cups of flour. If the baker uses 2 cups of sugar, how much flour should the baker
    7·2 answers
  • Seven pipes empty a water tank in five days. In how many days would four pipes empty this tank? Give your answer in days and hou
    13·1 answer
  • Fill in the boxes to make a true statement. (_-3i)-(15+_i)=7-12i
    10·1 answer
  • If you count 60 animals of a certain species in a study of a national park and the rate of decay for this species is 3.5% per ye
    7·1 answer
  • What is a good name for a pretty blonde girl? (don't ask hehe)
    12·1 answer
  • Which of the following is the correct value for x?
    7·2 answers
  • Question 7 of 10
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!