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
pishuonlain [190]
3 years ago
7

Find the value of x A)30 B)60 C)90 D)120

Mathematics
2 answers:
oksian1 [2.3K]3 years ago
4 0
The value of x is 30

2×30=60°
90-30=60°
90+30=120°
Bingel [31]3 years ago
3 0

Answer:  The correct option is (A) 30.

Step-by-step explanation:  We are given to find the value of x from the figure shown with two intersecting lines.

As noted from the figure, since the measures of two vertically opposite angles are equal, so

2x^\circ=(y-x)^\circ\\\\\Rightarrow 2x=y-x\\\\\Rightarrow 2x+x=y\\\\\Rightarrow y=3x~~~~~~~~~~~~~~~~~~~~~~~~~(i)

And, from the measure of a straight angle, we can write

2x^\circ+(y+x)^\circ=180^\circ\\\\\Rightarrow 2x+(y+x)=180\\\\\Rightarrow 3x+y=180\\\\\Rightarrow 3x+3x=180~~~~~~~~~~~~\textup{[putting the value of y from equation (i)]}\\\\\Rightarrow 6x=180\\\\\Rightarrow x=30.

Thus, the required value of x is 30.

Option (A) is CORRECT.

You might be interested in
Guys please help me with this question
diamong [38]

Answer: Can I get brainliest and 5 stars? thank you.

a) \frac{65}{99}

b) \frac{59}{90}

c) \frac{13}{20}

Step-by-step explanation:

a) 0.65 I can't put line above it, but the line expresses that 6 and 5 and repeating infinitely. Let X equal the decimal number.

x=0.65

First multiply by 1 followed by as many zeros as repeating numbers there are. In this case since 6 and 5 are the repeating numbers, we have to add 2 zeros which is basically multiplying by 100

0.65*100=65.65 (another 65 remains on the right because they're infinite.)

Now substract from the original number. Now we have a new equation that says: 100x=65.65.

Substract equation 1 from equation 2.

100x=65.65\\-x=0.65

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

99x=65

Solve just like any other equation. Divide by 99 to isolate x.

\frac{99x}{99}=\frac{65}{99}

x=\frac{65}{99} This is the fraction.

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

b) 0.65^-This one is a little bit different because we only have 1 repeating number.

In this case we have to multiply by 10.

0.65^-*10=6.55^-

Equation 1: x=0.65^-

Equation 2: 10x=6.55^-

Substract.

10x=6.55^-\\-x=0.65^-

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

9x=5.9

divide by 9 to isolate x

\frac{9x}{9}=\frac{5.9}{9}

x=\frac{5.9}{9}

To get rid of the decimal in the numerator, multiply both numerator and denominator by 10 so that we don't change the fraction.

x=(\frac{5.9*10}{9*10} )

x=\frac{59}{90} and this is your fraction.

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

c) 0.65 this one has no repeating number. It's a finite decimal number.

I assume you already know that; a=\frac{a}{1}, so, we can do the same here to have a fraction.

0.65=\frac{0.65}{1}

Now, in order to get rid of the decimal, multiply by 1 followed by as many zeros as decimal numbers are. In this case 2 zeros because there are 2 decimal numbers, so it's 100. Remember that if you do it in the numerator, you have to do it in the denominator as well to not change the fraction.

\frac{0.65*100}{1*100} =\frac{65}{100}

Simplify if possible.

\frac{65/5}{100/5} =\frac{13}{20} This is your fraction.

6 0
3 years ago
A student hypothesized that in the US adult population, women drank the same amount of water per day as men per kg of body weigh
Kamila [148]

The conclusion that is justified based on the research is that he rejected the null hypothesis that women drank the same amount of water per kg of body weight per day as men.

<h3>How to illustrate the research?</h3>

It should be noted that a research is simply used to get information about a topic.

In this case, it can be deduced that a type 1 error is committed. This implies the rejection of the null hypothesis when it's true.

Learn more about research on:

brainly.com/question/25257437

#SPJ1

3 0
2 years ago
Help please ...........
GarryVolchara [31]
7/9 = 0.777777
8/11 = 0.727272
0.79
84% = 0.84
4/5 = 0.8

8/11, 7/9, 0.79, 4/5, 84%
4 0
3 years ago
Read 2 more answers
Simplify: (sin Θ − cos Θ)^2 + (sin Θ + cos Θ)^2
Ede4ka [16]
Hope this could help you

5 0
4 years ago
Read 2 more answers
The ages of the members of a family are 46, 48, 21, 12, 15, and 8. what is the mean age?
Sidana [21]
Mean means to average. in order to average, add all the numbers then divide by how many numbers you have.

All these ages add up to 150. because there are 7 ages, divide by 7. this is 21.4 which can be rounded to about 21

46 + 48 + 21 + 12 + 15 + 8 = 150
150 ÷ 7= 21.4285 = 21
8 0
3 years ago
Other questions:
  • A sporting goods store sells 2 fishing reels and 5 fishing rods for $195. Later, they sell 4 fishing reels and 3 fishing rods fo
    9·1 answer
  • Help 20pts show your work too ;)
    7·1 answer
  • Michelle and Michael collect baseball cards. Michael has 5 more cards then Michelle. Together they have 27 cards. How many cards
    14·2 answers
  • List the property that must be present to call a rectangle a square.​
    14·1 answer
  • What is 2+2 in math??
    12·2 answers
  • EXPLAIN HOW TO FACTOR THE FOLLOWING TRINOMIAL. It’s in the picture above, HELP ME PLEASE!!!
    11·1 answer
  • 6-(1/3×1/3)+1×8 what is the answer? How to get it??????????​
    14·1 answer
  • 1 point<br> Find 41% of 48. Round your answer to the nearest hundredth if necessary
    15·2 answers
  • the three points A(0,0,0), B(2,-3,3) C(-2,3,-3) are collinear. find in what ratio each point divides the segment joining the oth
    12·1 answer
  • Which function is linear?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!