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
Vlad [161]
2 years ago
15

Help me please!!! 10 points!!

Mathematics
2 answers:
hammer [34]2 years ago
8 0

\qquad\qquad\huge\underline{{\sf Answer}}

Let's solve for x ~

We can apply Trigonometric ratios here, since the given triangle is a right angled triangle

so,

\qquad \sf  \dashrightarrow \: \sin(30)  =  \dfrac{ \sqrt{3} }{x}

\qquad \sf  \dashrightarrow \:  \dfrac{1}{2}  =  \dfrac{ \sqrt{3} }{x}

\qquad \sf  \dashrightarrow \:x = 2 \times \sqrt{3}

\qquad \sf  \dashrightarrow \:x = 2 \sqrt{3}

i hope you you understood

Allisa [31]2 years ago
4 0

Answer:

2√3

Step-by-step explanation:

The shown triangle is a 30-60-90 special right triangle due to the right angle and the thirty degree angle(the other angle has to be 60 degrees).

The hypotenuse of a 30-60-90 triangle is twice the leg opposite the 30 angle. The leg opposite the 30 degree angle is √3, so x would be 2√3.

You might be interested in
Solve for the value of p
valentinak56 [21]

Answer:

p=43

Step-by-step explanation:

(p+7)+(3p+1)=180

4 0
3 years ago
Probability of choosing a bead that is either green or purple. <br>​
netineya [11]

Answer:

58 %

Step-by-step explanation:

So 18 % of the beads are green and 40 are purple add those and you get 58

7 0
3 years ago
From a window 20 feet above the ground, the angle of elevation to the top of a building across
Nikitich [7]

Answer: The answer is 381.85 feet.

Step-by-step explanation:  Given that a window is 20 feet above the ground. From there, the angle of elevation to the top of a building across  the street is 78°, and the angle of depression to the base of the same building is 15°. We are to calculate the height of the building across the street.

This situation is framed very nicely in the attached figure, where

BG = 20 feet, ∠AWB = 78°, ∠WAB = WBG = 15° and AH = height of the bulding across the street = ?

From the right-angled triangle WGB, we have

\dfrac{WG}{WB}=\tan 15^\circ\\\\\\\Rightarrow \dfrac{20}{b}=\tan 15^\circ\\\\\\\Rightarrow b=\dfrac{20}{\tan 15^\circ},

and from the right-angled triangle WAB, we have'

\dfrac{AB}{WB}=\tan 78^\circ\\\\\\\Rightarrow \dfrac{h}{b}=\tan 15^\circ\\\\\\\Rightarrow h=\tan 78^\circ\times\dfrac{20}{\tan 15^\circ}\\\\\\\Rightarrow h=361.85.

Therefore, AH = AB + BH = h + GB = 361.85+20 = 381.85 feet.

Thus, the height of the building across the street is 381.85 feet.

8 0
3 years ago
How many points need to be removed from this graph so it will be a function?​
finlep [7]

Answer:

3 points

Step-by-step explanation:

in a function, an x-value must have only one y-value correlated with it.

So, you would need to remove either (-3, 2) or (-3, 3)

And, you would need to remove either (2, -2) or (2, -4)

<em>And, </em>you would need to remove either (1, 4) or (1, -4)

So--you need to remove 3 points in total for this to be a function.

[a y-value can have multiple x-values. the two points at -4 are allowed, and do not need to be removed for both of them to be there]

8 0
2 years ago
I need help with this​
VLD [36.1K]

Answer:

im sorry wish i could

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Terbium-160 has a half-life of about 72 days. After 396 days, about how many milligrams of a 220 mg sample will remain?
    7·2 answers
  • One day, I decide to run to the park. On the way there, I run at a rate of x^2 miles per hour for 3 hours. On the way back, I ta
    6·2 answers
  • If the random variable x has a uniform distribution between 40 and 50, then p(35 ≤ x ≤ 45) is:
    6·1 answer
  • Find the values of x1 and x2 where the following two constraints intersect.
    8·1 answer
  • When you make an electronic payment from your checking account, the bank __________ identifies the bank where you have an accoun
    6·1 answer
  • It takes 1/4 of an hour to mow 1/5 of his yard. How much of the yard can he mow per hour
    13·2 answers
  • Valencia is solving this number riddle using guess and check. What number multiplied by eight is equal to forty? Valencia must f
    5·2 answers
  • You roll a six sided die two times. What is the probability of rolling a 4 then rolling a 2?
    10·1 answer
  • The equation y-4=-3(x+4) is written in point-slope form. What is the y-intercept of the line? *
    9·1 answer
  • Which number is rational?<br> HELP QUICK PLEASE
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!