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
lilavasa [31]
3 years ago
10

A certain triangle has 30° ange 60° angle. Which must be a true statement about the triangle?

Mathematics
1 answer:
olga2289 [7]3 years ago
4 0

Answer:

The triangle is a right triangle since its a 90 degree triangle

Step-by-step explanation:

30+60=90

You might be interested in
(2x10^3)x(4x10^2) how do you do it help!
Sergio039 [100]

Answer:

800000x^3

Step-by-step explanation:

6 0
3 years ago
Expand the polynomial:<br> (5a+1/5 b)^2
WINSTONCH [101]
Expand the following:
(5 a + b/5)^2

(5 a + b/5) (5 a + b/5) = (5 a) (5 a) + (5 a) (b/5) + (b/5) (5 a) + (b/5) (b/5):
5×5 a a + (5 a b)/5 + (5 b a)/5 + (b b)/(5×5)

(5 a b)/5 = 5/5×a b = a b:
5×5 a a + a b + (5 b a)/5 + (b b)/(5×5)

(b×5 a)/5 = 5/5×b a = b a:
5×5 a a + a b + b a + (b b)/(5×5)

Combine powers. (b b)/(5×5) = (b^(1 + 1))/(5×5):
5×5 a a + a b + b a + (b^(1 + 1))/(5×5)

1 + 1 = 2:
5×5 a a + a b + b a + (b^2/5)/5

5 a×5 a = 5×5 a^2:
5×5 a^2 + a b + b a + (b^2/5)/5

5×5 = 25:
Answer:  25 a^2 + a b + b a + (b^2/5)/5
3 0
3 years ago
Read 2 more answers
F(x) = 2/5x + 24 what is the value of x when f(x) =25
dybincka [34]

Answer:

exact form: 5/2

decimal form: 2.5

mixed number form: 2    2/1

Step-by-step explanation:

8 0
2 years ago
If points r and s are contained in a plane then is entirely contained in that plane
vfiekz [6]
Yes they are entirely contained 

5 0
3 years ago
Which of the following pairs represent a function ​
denis23 [38]

Option D: \{(-9,8),(-5,-8),(-7,8),(-6,-8)\} are the ordered pairs represents a function.

Explanation:

Given that the options of the set of ordered pairs.

We need to determine the ordered pairs that represents a function.

Option A: \{(-12,8),(-15,8),(-5,-8),(-12,-8)\}

A relation is said to be a function if each element of x is related to exactly one element in y.

From this set of ordered pairs, it is obvious that the element -12 of x is related to two different element in y.

Thus, the ordered pairs \{(-12,8),(-15,8),(-5,-8),(-12,-8)\} is not a function.

Hence, Option A is not the correct answer.

Option B: \{(8,-9),(-8,-5),(8,-7),(-8,-6)\}

From this set of ordered pairs, it is obvious that the elements -8 and 8 of x are related to two different element in y.

Thus, the ordered pairs \{(8,-9),(-8,-5),(8,-7),(-8,-6)\} is not a function.

Hence, Option B is not the correct answer.

Option C: \{(13,-3),(13,0),(13,-1),(13,-1)\}

From this set of ordered pairs, it is obvious that the element 13 of x is related to three different element in y.

Thus, the ordered pairs \{(13,-3),(13,0),(13,-1),(13,-1)\} is not a function.

Hence, Option C is not the correct answer.

Option D: \{(-9,8),(-5,-8),(-7,8),(-6,-8)\}

A relation is said to be a function if each element of x is related to exactly one element in y.

From this set of ordered pairs, it is obvious that the each element of x is related exactly one element in y.

Thus, the ordered pairs \{(-9,8),(-5,-8),(-7,8),(-6,-8)\} is a function.

Hence, Option D is the correct answer.

7 0
3 years ago
Other questions:
  • Please solve 5 problems from Monday and show work.
    9·1 answer
  • Find the exact value of the expression. Do not use a calculator. If tan θ = 9, find the exact value of cot (pi/2 - θ)
    15·1 answer
  • Which bank does not charge at all for using the ATM?
    14·2 answers
  • Which constant term should be used to complete the square? <br> x^2-5x+__=7
    11·1 answer
  • Help me please!!!<br> 7. What are the measures of ∠a, ∠b, and ∠c?
    12·2 answers
  • Person 3 bought a brand new car for $26,500. A year later the car had depreciated 19%. How much did the car depreciate?
    15·1 answer
  • Between which 2 whole numbers does the cube root <br>1113 lie?​
    12·1 answer
  • Expand.<br> Your answer should be a polynomial in standard form.<br> (3a^2 – 1)(-3a² + 5) =
    5·1 answer
  • For points<br> What is 100-47=
    5·2 answers
  • Simplify the expression.<br> (5x + 1/2) + (3x - 7 1/2)
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!