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
babymother [125]
3 years ago
7

Heeeeeeeeeeeeeeeeeelpppppppppppp

Mathematics
1 answer:
Usimov [2.4K]3 years ago
6 0

Answer:

As both these angles form a linear pair, they together will form 180°

So,

(2x + 45)° + x = 180°

=> 2x + 45 + x = 180°

If my answer helped, kindly mark me as the brainliest!

Thank You!!

You might be interested in
Lines s and t are perpendicular If slope of line s is 5 what is the slope of line t
garri49 [273]
The slope of line t is -1/5 because the slope of any line that is perpendicular to another is the negative reciprocal therefore 5 becomes -1/5
5 0
3 years ago
The whole number 330 is divisible by 2 3 5 6 10 and 11
White raven [17]

Answer:

FURTHER ASK THIS QUESTION, THIS IS A STATEMENT

Step-by-step explanation:

6 0
3 years ago
PTC is a substance that has a strong bitter taste for some people and is tasteless for others. The ability to taste PTC is inher
lana66690 [7]

Answer:

a) n=\frac{0.76(1-0.76)}{(\frac{0.01}{1.64})^2}=4905.83  

And rounded up we have that n=4906

b) For this case since we don't have prior info we need to use as estimatro for the proportion \hat p =0.5

n=\frac{0.5(1-0.5)}{(\frac{0.01}{1.64})^2}=6724  

And rounded up we have that n=6724

Step-by-step explanation:

We need to remember that the confidence interval for the true proportion is given by :  

\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}

Part a

The estimated proportion for this case is \hat p =0.76

Our interval is at 90% of confidence, and the significance level is given by \alpha=1-0.90=0.1 and \alpha/2 =0.05. The critical values for this case are:

z_{\alpha/2}=-1.64, t_{1-\alpha/2}=1.64

The margin of error for the proportion interval is given by this formula:  

ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}    (a)  

The margin of error desired is given ME =\pm 0.01 and we are interested in order to find the value of n, if we solve n from equation (a) we got:  

n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}   (b)  

Replacing we got:

n=\frac{0.76(1-0.76)}{(\frac{0.01}{1.64})^2}=4905.83  

And rounded up we have that n=4906

Part b

For this case since we don't have prior info we need to use as estimatro for the proportion \hat p =0.5

n=\frac{0.5(1-0.5)}{(\frac{0.01}{1.64})^2}=6724  

And rounded up we have that n=6724

3 0
3 years ago
Find the exact area of a circle having the given circumference.
blagie [28]

Answer:

<h2>A = 2.25π</h2>

Step-by-step explanation:

The formula of an area of a circle:

A=\pi r^2

r - radius

The formula of a circumference of a circle:

C=2\pi r

We have:

C=3\pi

Substitute:

2\pi r=3\pi            <em>divide both sides by 2π</em>

r=1.5

Substitute:

A=\pi(1.5)^2=2.25\pi

3 0
3 years ago
What is 15% of 80kg i am<br> Really not sure
Dafna11 [192]

Answer:

12 kg

Step-by-step explanation:

15×80/100

15×8/10

120/10

12 kg

7 0
2 years ago
Read 2 more answers
Other questions:
  • Solving Two-Step Inequalities
    8·1 answer
  • sadie finished her math test 16 minutes less than 3 times the amount of time it took her friend laura to finish. if their combin
    10·1 answer
  • 4/5 of the 315 members of a book club are male.How many female members are there in the club?
    15·1 answer
  • A shoe salesman earns a commission of 20% of all shoe sales made. Yesterday he sold 2 pairs of shoes for $80 each and 3 pairs of
    12·1 answer
  • In 2000, the population of Littletown was 17,000.
    7·1 answer
  • AB and CD are common external tangents of R and S AB =15 SD=12 and SX=20 what is the measure of CX?​
    9·1 answer
  • What is the slope intercept form of the function describe by this table x 1,2,34 Y ,2,7,12,17
    5·1 answer
  • PLEASE I NEED HELP QUICK PLEASE
    8·1 answer
  • What is the slope of the line on the graph below?
    9·1 answer
  • 100 raspberries weigh 40 grams. if there is a proportional relationship between raspberries and weight, how many raspberries doe
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!