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
Please explain how you got to the answer will give brainliest thanks!
a_sh-v [17]
To find the length of the light pole you'll have to use the sine ratio.

sin 30 = x/43
43 (sin 30) = x
21.5 = x

Hope this helps :)
6 0
3 years ago
Read 2 more answers
HELP!!!! I cannot find any good answers for this question and I keep getting it wrong! The answer options are:
kondaur [170]

The missing reason is (d) Add the fractions together on the right side of the equation

<h3>How to complete the missing reason?</h3>

From the statements, we have the following equation:

x^2 + b/a x + (b/2a)^2 = -4ac/4a^2 + b^2/4a^2

Next, we add the fractions on the right-hand side of the equation.

This gives

x^2 + b/a x + (b/2a)^2 = [-4ac + b^2]/4a^2

The above means that the last statement is gotten by adding the fractions on the right-hand side of the equation.

Hence, the missing reason is (d) Add the fractions together on the right side of the equation

Read more about quadratic equations at:

brainly.com/question/1214333

#SPJ1

8 0
2 years ago
Question:
allochka39001 [22]

Answer:

It is A

Step-by-step explanation:

I cant explain step by step I am in a rush but it is A

3 0
2 years ago
gave each student a pair of standard dice. The students rolled the dice once and reported their results to the teacher. How many
Salsk061 [2.6K]
42 times is the answer
8 0
3 years ago
−2x+7y=10 minus 3x+7y=2
viva [34]

Answer:

I would multiply the first equation by −4 and the second by 3 and add together the two equatins (in columns): ... Step 2. Prepare the equations. Multiply every term in each equation by a ... Subtract Equation (4) from Equation (3). ... How do you solve the system 5x−10y=15 and 3x−2y=3 by multiplication?

3 0
3 years ago
Other questions:
  • (a^3)^6 = (a^2)^x what is x?
    9·1 answer
  • It's hard to determine if the bank's web site is secure. <br> true or false?
    10·2 answers
  • A circle has a circumference of 44m. What
    10·2 answers
  • What is the sum of prime numbers between 110 and 125?​
    11·2 answers
  • Which expression is equivalent to<br><br> 420d2 - 126d?
    9·1 answer
  • Maria's Starting wage for her new job is $8.50 per hour. Each month during her first year. her hourly wage will increase by $.50
    6·1 answer
  • Given g(x)=3x-3, solve for x when g(x)=6.
    11·1 answer
  • Please help me simplify
    14·1 answer
  • Simplify the algebraic expression <br> 3/4(4x-8y)
    14·1 answer
  • 3
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!