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
Ymorist [56]
3 years ago
12

Find the missing angles for 1 and 2 please

Mathematics
1 answer:
aev [14]3 years ago
8 0
In picture 1 we got a right triangle on the left. Two given angles are the 90° and a 30°. When we calculate the remaining angle we get:
30 + 90 + x = 180
120 + x = 180
x = 60

The bottom right angle of the right triangle is 60°.

At the bottom, we see a straight line with 3 angles on it. Because that angles made up a straight line, we know their sum is equal to 180°. When we convert that into an equation: 60 + 70 + y = 180

Simplify:
130 + y = 180
y = 50

We learned that the left bottom angle of the triangle on the right equals 50°.

At the triangle on the right we have two angles known: 50°, and 85°. We can find the third angle by setting their sum equal to 180: 50 + 85 + ? = 180

Simplify:
135 + ? = 180
? = 45


For picture 2, we know that those two triangles have congruent angles in the middle. The two angles in the middle are what we call 'vertical' angles.

Because their one angle is equal, their remaining two angles' sum needs to be equal to each other. So 24 + ? = 27 + 26

When we simplify this:
? = 53 - 24
? = 29

So, the ? is 29.

(I used x and y but I made them up)
You might be interested in
Angle D and Angle F are supplementary. The measure of Angle D is (3x + 5), and the measure of angle F is (2x). What is the measu
olga55 [171]

Step-by-step explanation:

Two angles are called suplementary when their measures add to 180 degrees.

D+F= 180

3x+5+2x= 180

5x+5=180

5x= 175

x= 35°

angle D = 3x+5= 3(35)+5= <u>110°</u>

5 0
3 years ago
Help please! I’ll give brainliest.
Lapatulllka [165]

9514 1404 393

Answer:

  (a) not proportional

  (b) k = 7/8

Step-by-step explanation:

When a linear equation is of the form ...

  y = mx + b

with b ≠ 0, the relation is NOT PROPORTIONAL.

__

If b=0, so the equation is of the form ...

  y = kx

then the relation IS PROPORTIONAL. The constant of proportionality is k.

__

(a) Not proportional

(b) Proportional with k = 7/8

8 0
3 years ago
Bryce lives 26 miles from his grandmother's house .how many kilometers does bryce live from his grandmother's house? round your
faltersainse [42]
He lives roughly 41.8 kilometers away from his grandma's house
8 0
3 years ago
Read 2 more answers
Please help me with how to solve this equation by completing the square. The answer should be (2, -6)
OLga [1]

Answer:

(2, -6)

Step-by-step explanation:

5n^2+20n-60

(5n+30)(n-2)

5n + 30 = 0

5n = -30

(5n = -30)/5

n = - 6

n - 2 = 0

n = 2

answer: (2, -6)

5 0
3 years ago
find the size of each sample needed to estimate the difference between the proportions of boys and girls under 10 years old who
Alex Ar [27]

Answer:

sample

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • G(-5)=-7(-5)+4<br> Can u solve this equation
    11·1 answer
  • I have trouble dividing​
    8·1 answer
  • Use the graph below to answer the following question:
    14·2 answers
  • 40 POINTS!!!!!!!!!!!!!!!!! Will mark Brainliest
    11·1 answer
  • PLEASE HELPP MEE!!!!
    6·1 answer
  • Solve 3[-x + (2x+ 1)] =X- 1.<br> x= ?
    7·1 answer
  • Answer the question in the picture pls WORTH 50 POINTS PLUS BRAINLIEST FOR FIRST CORRECT ANSWER
    10·2 answers
  • If triangle BNV ~ triangle BRG, BR=4x+7 and BG= 18 find the value of x
    10·1 answer
  • Karl makes a scale drawing for a crate with a scale factor
    15·1 answer
  • Plz answer this choice question<br> ;)
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!