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
kakasveta [241]
3 years ago
7

Can somebody help me, please?

Mathematics
1 answer:
Sveta_85 [38]3 years ago
8 0

Answer:

a.x=10 \textdegree

b.

m\angle L=39\textdegree\\\\m\angle M=51\textdegree\\\\m\angle K=90\textdegree

Step-by-step explanation:

a. We know that angles in a triangle add up to 180°.

-The right angle triangle in the right triangle has a measure of 90°.

We can therefore equate our angles to 180° and solve for x;

180=\perp\angle+(2x+19)+(3x+21)\\\\180=90+(2x+19)+(3x+21)\\\\90=5x+40\\\\5x=50\\\\x=10\textdegree

Hence, the angle measure is x=10°

b. Having calculated the value of x from a above as x=10°, we can substitute to find the measures of the two acute angles:

m\angle L=(2x+19)\textdegree\\\\=(2\times 10+19)\textdegree\\\\=39\textdegree\\\\m\angle M=(3x+21)\textdegree\\\\=(3\times 10+21)\textdegree\\\\=51\textdegree

Since, the m∠K is a right angle, it measures 90°

You might be interested in
Find the distance bewteen points H(8,4) and k(7,6) to the nearest hundreath
OleMash [197]

Answer:

2.24

Step-by-step explanation:

If you look at the points on the graph, you can see that the distance between them is also the hypotenuse of a right triangle, meaning you can calculate the distance using the pythagorean theorem.

a^2+b^2=c^2\\1^2+2^2=c^2\\1+4=c^2\\c=\sqrt{5}\\c\approx2.2361

8 0
2 years ago
Help fast!!! will mark brilliant !!!!!!!
vfiekz [6]

Answer:

A is the correct answer

Step-by-step explanation:

Because the dot on -1 means -1,2 and the dot on -5 means -5,2 I hope this helps

6 0
3 years ago
Read 2 more answers
Find the error and correct it
jek_recluse [69]
4=-2(x-3)

divide both sides by 2

2=-(x-3)

remove parentheses

2=-x+3

move terms

2+x=3

subtract numbers

x=3-2

x=1
6 0
3 years ago
Can someone hurry help me
Dmitriy789 [7]

Answer:

Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable). Functions are ubiquitous in mathematics and are essential for formulating physical relationships in the sciences.As we have seen in examples above, we can represent a function using a graph. Graphs display many input-output pairs in a small space. ... The most common graphs name the input value x and the output value y , and we say y is a function of x , or y=f(x) y = f ( x ) when the function is named f .

Step-by-step explanation:

Brainlist will be very accept if you want took me a while to do :)

7 0
3 years ago
285 divided by 8 is what?
Gemiola [76]
35.625
How many times does 8 go into 285?

5 0
3 years ago
Read 2 more answers
Other questions:
  • Help! Fast! Thanks if you do!
    13·1 answer
  • Factor completely: 10x2 + 2x − 8
    8·2 answers
  • 30 points if you can answer this question and tell me how to do it
    15·1 answer
  • 19) Solve the absolute value equation.
    15·1 answer
  • At a pond there were 24 ducks swimming. The ratio of duckling to adult ducks is 5 to 1. How many ducklings were swimming at the
    7·2 answers
  • Which statement best describes why there is no real solution to the quadratic equation y = x2 - 6x + 13?
    8·2 answers
  • Martha wants to go to band camp this summer that costs $103.50 she has $10 and plans to save $5.50 each week. How many weeks wil
    12·1 answer
  • Kế hoạch đi dã ngoại của một gia đình sẽ bị hủy nếu trời có mây hoặc mưa. Biết xác suất để trời có mây là có mưa là có cả mây và
    11·1 answer
  • Combining Like Term
    11·2 answers
  • Algebra 1
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!