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
patriot [66]
3 years ago
8

In ΔIJK, the measure of ∠K=90°, IJ = 8.6 feet, and KI = 4.5 feet. Find the measure of ∠I to the nearest tenth of a degree.

Mathematics
1 answer:
Zarrin [17]3 years ago
5 0

Answer:

m∠I = 58.4°

Step-by-step explanation:

cos = adjacent side/hypotenuse

It is always helpful to have a picture.   In your case KI is adjacent to ∠I and IJ is the hypotenuse.

So cos I = KI/IJ = 4.5/8.6

     arccos (4.5/8.6) = m∠I

m∠I = 58.4°

It is necessary for you to memorize the definitions of the trig functions in order to do these types of problems.  OK?

You might be interested in
Find the common difference of the arithmic sequence 19 13 17 21
eimsori [14]

Answer:

sorry,this is not a question, has different answers

4 0
3 years ago
Area of square is numerically less than twice its diagonal by 2. Find its Perimeter.
Usimov [2.4K]
2D-a^2=2

2(a√2) -a^2=2

a^2-2√2*a+2=0

2a= 2√2 + √(8-4*2) = 2√2 
hence, perimeter = 4a = 2*2a=2*2√2 = 4√2
8 0
3 years ago
rosa want to buy snacks at the snack stand. Snacks cost $2.50 each. write and solve an inequality to find the number of snacks r
Keith_Richards [23]

Answer:

18≤ 2.50x

because there is only so much money she is allowed to spend has to be less than or equal to 18

5 0
3 years ago
Put together, Tom and his father away 280 pounds. Tom’s dad weighs three times as much as he does. How much does Tom weigh?
vovangra [49]

Answer:

Tom weighs 70 pounds

Step-by-step explanation:

first, you have to set up your equation which would be, x + 3x = 280.

The x stands for Tom's weight and the 3x stands for three times Tom's weight for the dad. You would then add your like terms, then divide by 4 to get 70.

x + 3x = 280

4x = 280

280/4 = 70

x = 70

Hope this helps!

3 0
3 years ago
What is the x-coordinate of the midpoint of the segment whose endpoints are<br> (2, 3) and (-5, 5)?
ArbitrLikvidat [17]

Answer:

(-3/4, 4)

Step-by-step explaination:

add 2 and -5 then divide them by two and get

-1/2

then add 3 and 5 divide them by two and get

11/2

But as long as you remember that you're averaging the two points' x- and y-values, you'll do fine. It won't matter which point you pick to be the "first" point you plug in. Just make sure that you're adding an x to an x, and a y to a y.

so therefore the answer is (-3/4, 4)

7 0
3 years ago
Other questions:
  • if Raphael counted 40 yellow and white cars and there were 9 times more white cars. how many white cars
    9·1 answer
  • The second one please help I do not understand and if you can please explain
    11·1 answer
  • What are the pattern for the following numbers, 27, 18, 12, 8?
    11·2 answers
  • Find the quotient and remainder for52/8
    11·1 answer
  • Please answer whats on the screenshot for brainliest
    13·1 answer
  • Simplify the following expression.<br> X^-2/3 multiplied by x^6/7
    7·1 answer
  • Please help, I need to solve for m. a=f/m
    13·1 answer
  • Who understands this sum?
    14·1 answer
  • A store sells jump ropes. Each jump rope costs the same amount. During a sale, the store reduces the price of each jump rope by
    12·1 answer
  • 1. 4(p+9)=20<br>2. -2(x+1)=4<br>Solve for X​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!