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
exis [7]
3 years ago
13

Find the value of. x part 1c​

Mathematics
1 answer:
Dmitry [639]3 years ago
3 0

The bisector splits this shape into two triangles. It is easier if we find the degrees of each triangle in this shape separately

We know that one angle of the top triangle is 65 degrees. Since another angle is congruent to the known angle we can assume that the other angle is 65 degrees as well. You can see this labeled in the image below.

The sum of all the angles of a triangle is 180 degrees. Since we know the degrees of two angles, which are both 65 degrees, we can make a formula to find the third angle:

180 = 65 + 65 + x

180 = 130 + x

50

This means that the last angle is 50 degrees

^^^We need to know this so that we can find the angle complimentary to the 50 degree angle, which will be the angle that is included in the bottom triangle

Complimentary angles are angles who's sum is 90 degrees. You can find the 50 degree angles complimentary angle by making a formula like so:

90 = 50 + x

40

Now we have the first angle of the second triangle. The second two angles can be found easily. Since the other two angles are congruent all we need to do is subtract 40 from 180  then divide the answer by 2 like so:

180 - 40 = 140

140 / 2 = 70

The other two angles are 70 degrees!

The measure of angle 2 is supplementary to one of the 70 degree angles. This means that you can find the value of angle 2 by subtracting 70 from 180

180 - 70 = 110

To find x set the equation equal to 110 and solve

110 = x + 120

x = -10

Hope this helped!

~Just a girl in love with Shawn Mendes

You might be interested in
PLEASE HELP IT IS 3:30 AM
Nataly_w [17]

Answer:

The answer is y = -1/3x + 5 !

Step-by-step explanation:

If you observe the line, the y-intercept is 5, from the point in the graph (0,5). From that point, we can see that the rise over run is -1/3. Thus, y = -1/3x + 5.

8 0
3 years ago
Choose the expression that represents “three less than seven times a number.”
tamaranim1 [39]

Answer:

x7-3 as number is multiplied by 7 then subtracted by 3

3 0
3 years ago
the least common denominator of two fractions is 12. if you add the two denominators, their sum 7. what are the denominators?
Varvara68 [4.7K]
3 and 4

3 x 4 = 12
3 + 4 = 7
8 0
3 years ago
Read 2 more answers
Please answer it now in two minutes
nata0808 [166]

Answer:

C = 28.9

Step-by-step explanation:

Given the right angled triangle, ∆BCD, you are required to find the measure of angle C.

Apply the trigonometric ratio formula to find m < C.

Adjacent side = 7

Hypotenuse = 8

Trigonometric ratio formula to apply would be:

cos(C) = \frac{7}{8}

cos(C) = 0.875

C = cos^{-1}(0.875)

C = 28.9

(To nearest tenth)

6 0
3 years ago
Someone plz help me here ;-; it’s due today! I have another due today plz help I have to redo this one cause I got one wrong ;-;
Alja [10]

Answer:

I think It is D

7 0
3 years ago
Read 2 more answers
Other questions:
  • What expression is equivalent to x^2+2x-24/3x+18
    5·1 answer
  • How many possible solutions can a systems of two linear equation in two unknowns have
    10·1 answer
  • You are given the right triangle below. Find each of the trig ratios. Enter your answers as fractions in lowest terms.
    9·1 answer
  • Help please,<br><br> much aprreciated
    12·2 answers
  • You randomly choose two shapes from the bag, with replacement. Find the probability of choosing a star and then a circle. Write
    7·1 answer
  • 9^2(x-1) = 27^x how do I solve this equation?
    8·1 answer
  • You invest $4000 at 7% compounded weekly for 4 years. How much is the investment worth at the end of the 4 years?
    13·1 answer
  • Answer for brainliest. If explained well, brainliest will be given.
    12·1 answer
  • What’s the untit rate for 400 miles on 20 gallons
    10·1 answer
  • Jason considered two similar televisions at a local electronics store. the cheaper version was 12 inches by 24 inches. the more
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!