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
soldier1979 [14.2K]
3 years ago
9

Work out the angle of x ? Does anyone know how to do this..

Mathematics
1 answer:
insens350 [35]3 years ago
5 0

Answer:

x = 45°

Step-by-step explanation:

From the triangle given in the picture,

It's given that two sides of the triangle are equal so the triangle is an isosceles triangle.

By the property of isosceles triangle,

Opposite angles of the equal sides are equal in measure.

By triangle sum theorem,

x + x + 90° = 180°

2x + 90 = 180

2x = 180 - 90

x = \frac{90}{2}

x = 45°

You might be interested in
The point A(0,3) and point B(4,19) lie on the line L.<br> Find the equation of line L
IRISSAK [1]

Answer:  The equation is   y = 4x+3

Slope = 4

y intercept = 3

========================================================

Explanation:

Let's start off by finding the slope.

A = (x_1,y_1) = (0,3) \text{ and } B = (x_2,y_2)  = (4,19)\\\\m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}\\\\m = \frac{19 - 3}{4 - 0}\\\\m = \frac{16}{4}\\\\m = 4\\\\

The slope is 4.

The y intercept is 3 because of the point (0,3)

We go from y = mx+b to y = 4x+3

m = slope

b = y intercept

---------------

Check:

Plug in x = 0 and we should get to y = 3

y = 4x+3

y = 4(0)+3

y = 0+3

y = 3

That works out. Now try x = 4. It should lead to y = 19

y = 4x+3

y = 4(4)+3

y = 16+3

y = 19

The answer is confirmed.

4 0
2 years ago
Y
alina1380 [7]

Answer:

the coordinates of the point of x and y is -1÷ 2 and -√3÷ 2

Step-by-step explanation:

The computation of the coordinates of the point is shown below:

The angle is

= 4π ÷ 3

The radius is 1 unit

Now

x = rcos\theta, and y = rsin\theta

Now

x = 1cos(4π ÷ 3) = -1÷ 2

y = 1sin(4π ÷ 3) = -√3÷ 2

hence, the corordinates of the point of x and y is -1÷ 2 and -√3÷ 2

8 0
3 years ago
Read 2 more answers
Convert.<br>5 days =<br>lao<br>hours​
Andreas93 [3]

Answer:

120 Hours

Step-by-step explanation:

24 hours in a day

5 days

24 x 5 = 120

8 0
3 years ago
20/45 in simplest form
san4es73 [151]
20/45 would be 4/9 in simplest form. hope that helped
7 0
3 years ago
Read 2 more answers
The equation A = (x)(x - 2) describes the area, A, of a triangular sand box, where x is the length of the base in feet. What wou
anyanavicka [17]
Answer is A number 2
7 0
3 years ago
Other questions:
  • The planet mercury takes 56.6 earth days to rotate once around its axis. About how many times does it rotate around its axis dur
    5·1 answer
  • Plz help 4th grade review
    9·2 answers
  • The variables A, B, and C represent polynomials where A=x^2, B=3x+2, and C=x-3. What is AB-C^2 in simplest form?
    9·2 answers
  • A home has a triangular backyard. The second angle is 4degrees more than the first angle. The third angle is 20 degrees more tha
    5·1 answer
  • These tables represent a quadratic function with a vertex at (0,3). What is the average rate of change for the interval from X =
    11·1 answer
  • Prove the identity with steps. sin (x-y)/cos x sin y = tan x cot y -1​
    10·1 answer
  • PLEASE HELP ME!!! I need to simplify these equations, not answer them.
    6·1 answer
  • 37. Find the area of each square below. ​
    6·1 answer
  • CAN SOMEONE PLS TELL ME DOMAIN AND RANGE
    13·2 answers
  • Integer rules:
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!