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
SVEN [57.7K]
3 years ago
12

What is the value of x?​

Mathematics
1 answer:
alina1380 [7]3 years ago
7 0

Answer:

<h2>x = 4</h2>

Step-by-step explanation:

Look at the picture.

We have the triangles 30° - 60° - 90° and 45° - 45° - 90°.

The sides are in proportions:

30° - 60° - 90° ⇒ 1 : √3 : 2

45° - 45° - 90° ⇒ 1 : 1 : √2

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

SR=ST\sqrt3\to ST\sqrt3=2\sqrt3\qquad\text{divide both sides by}\ \sqrt3\\\\ST=2\\\\TR=2ST\to TR=2(2)=4\\\\RQ=TR\to RQ=4\to x=4

You might be interested in
Graph the lines by finding the points of intersection with the axes (intercepts): y=2.5x+5
Zolol [24]

The y intercept is 5, since slope is y=mx+b. The x intercept is at -2. If you have more problems like this there is an amazing calculator that graphs equations like this for you. www.symbolab.com. Hope this helps!


8 0
3 years ago
1986gram=................litters​
sladkih [1.3K]

Answer:

I think you have asked a wrong question there should be 1986mililitre or _kg

4 0
2 years ago
which of the following regular polygons can make a tessellation: a)septagon b)octagon c)square d)hexagon
adell [148]

Answer:

septagon

Step-by-step explanation:

septagon is the only regular polygon that can make a tessellation

hope it helps .

3 0
2 years ago
Rectangle ABCD has vertex coordinates A(1, -2), B(4, -2), C(4,-4), and D(1,
hram777 [196]
The coordinates of C is, (3,-1)
A is the. Answer
4 0
3 years ago
Find the measure of angle y. Round your answer to the nearest hundredth. (please type the numerical answer only)
Eduardwww [97]

Given:

The figure of a right triangle. PO=12,m\angle O=y^\circ and perpendicular = 12.

To find:

The measure of angle y.

Solution:

In a right angle triangle,

\sin\theta=\dfrac{Perpendicular}{Hypotenuse}

In the given right angle triangle,

\sin y^\circ=\dfrac{7}{12}

y^\circ=\sin ^{-1}\dfrac{7}{12}

y^\circ=35.685335^\circ

y^\circ\approx 35.69^\circ

Therefore, the measure of angle y is y^\circ =35.69^\circ.

7 0
3 years ago
Other questions:
  • Determine which relation is a function. Question 13 options: a) {(3, 0), (– 2, – 2), (7, – 2), (– 2, 0)} b) c) y = 15x + 2 y = 1
    15·1 answer
  • Graph the function y=-x+x^2
    11·1 answer
  • Find the solution of the system of equations 2x-4y=32 2x-8y=48
    15·2 answers
  • Which number is greatest?<br> ооо<br> 6.23 х 1012<br> 6.23x 108<br> Б.23 х 10-<br> o 6.23x 103
    15·1 answer
  • After a new product is launched the cumulative sales S(t) (in $1000) t weeks after launch is given by:
    15·1 answer
  • Determine the intercepts of the line. <br> y-intercept: (___, ___)<br> x-intercept: (___,___)
    5·1 answer
  • Pls help i will give u brianliest
    11·1 answer
  • Someone help me pleaseeeeee
    10·2 answers
  • Allison had 18 postage stamps she gave 2/9 of the stamps to her mother and used 1/2 of the remaining stamps to send letters to h
    11·2 answers
  • To plant a lawn, kristin needs 4 pounds of grass seed peer 1,000 square feet. A diagram of her lawn is shown below. Kristin want
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!