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
notsponge [240]
3 years ago
11

What is the height of an equilateral triangle with side lengths of 15? round to tenths?

Mathematics
1 answer:
Vinil7 [7]3 years ago
8 0
If this is an equilateral triangle, we need half of it to find the height which is a leg of a right triangle with a hypotenuse of 15.  That means that the base of this half triangle is 7.5.  Use Pythagorean's Theorem to fine the height.  x^{2} =(15) ^{2} -(7.5) ^{2}.  x = 12.99 or 13
You might be interested in
Find x to the nearest hundreths
7nadin3 [17]

I'd say the answer is C.

5 0
2 years ago
Read 2 more answers
Hunter's time for the 100-meter freestyle event was 57.9 seconds. His time for the second half of the race was 4.7 seconds slowe
Ratling [72]

Answer:

Step-by-step explanation:

Time for first race 57.9seconds

x=time for first half of race

x-4.7=second half of race

Equations is

x + (x-4.7)=57.9

2x-4.7=57.9

2x=57.9+4.7

2x=62.6

x=31.3

Check answer

31.3 + (31.3-4.7)=57.9

31.3 +26.6=57.9

57.9=57.9

6 0
3 years ago
THE QUESTION IS SOLVE FOR X​
Damm [24]

Answer:

34

Step-by-step explanation:

i honestly don't care i came on here to cheat but it's saying answer so here you go   :)

3 0
2 years ago
In the graphing tool, move the sliders for y=k(square root of x) and y= (square root of kx). Find a value of k where the graphs
svetoff [14.1K]

1+1+1+1+1++1+1++1+1+1+1+1+1+1

4 0
3 years ago
She is bringing servers copies of her latest book in her suitcase. The suitcase itself weighs 5 pounds , and each book weighs 3
Nat2105 [25]

Answer:

Charlene cannot bring 20 books because the weight of her luggage will be more than the permitted weight. She can only bring at most 15 books

We can represent this inequality as:

5 + 3x ≤ 50

Step-by-step explanation:

Whenever we are dealing with inequalities, a good trick is to solve the problem using an "equals to" sign and change it to the "inequality" sign at the last minute.

Let us assume that she carries x books.

The weight of her suitcase + the weight of all the 3-pound books must not be more than 50 pounds.

We can represent this inequality as:

5 + 3x ≤ 50

having said this, to find the value of x, which is the maximum number of books she is allowed to carry.

To do this, we replace the inequality sign with the "equals to" sign

5 + 3x = 50

from this, we have that

3x = 45;

x = 45/3

x = 15 books

From this, we can see that Charlene is not allowed to carry more than 15 books.

i.e x ≤ 15

Charlene cannot bring 20 books because the weight of her luggage will be more than the permitted weight. She can only bring at most 15 books

4 0
3 years ago
Read 2 more answers
Other questions:
  • Please I need help I'm bad at math
    11·2 answers
  • What is the solution to -3/4x + 2
    9·1 answer
  • Please simplify, thank you
    7·1 answer
  • What x value solves the equation?<br> 3x - 5 = 1<br> x=
    12·2 answers
  • Answer to this quest
    12·1 answer
  • What does Y equal? <br> the problem 5y-4
    10·2 answers
  • Round 1001 to the nearest thousand.
    14·1 answer
  • It's timed plzzz help!!!!!!!!!!!!!!
    14·2 answers
  • HELPPPP will mark brainliest
    8·1 answer
  • Pls help !!!<br> find the rate of change on [-1, 4]
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!