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
Lady bird [3.3K]
3 years ago
8

!!Help!!solve for x​

Mathematics
1 answer:
Murrr4er [49]3 years ago
4 0

WXY = XYW ( = 41 ) ⇒  XYW is a isosceles triangle

⇒ XW = YW

⇒ 54 = 6x + 6

⇒ 6( x + 1 ) = 54

⇒ x + 1 = 9

⇒ x = 8

ok done. Thank to me :>

You might be interested in
Center: (2,8), Radius: 3
Rzqust [24]

Answer:

I’m not sure what this question is asking, but I’ll write an equation of this circle you are describing. Here, the x coordinate of the center is h, the y coordinate is k, and radius is r in the equation : (x-h)^2+(y-k)^2=r^2, meaning the equation in this situation is the following: (x-2)^2+(y-8)^2=9

Step-by-step explanation:

5 0
3 years ago
When evaluating (6.28x10^12)/(3.14x10^4) what will be the exponent of 10 in the quotient?
alexdok [17]
2*10^8
the exponent would be 8
hope this helps!
4 0
3 years ago
Read 2 more answers
Amy can buy 5 shirts for a total of $25.How much would it cost if she were to buy 9 shirts at the same price?
Blababa [14]

Answer:

It would cost her $45.

Step-by-step explanation:

25 dollars divided by 5 shirts = 5 dollars per shirt.

5 dollars x 9 shirts = $45 dollars in total.

8 0
3 years ago
Read 2 more answers
Use your line plot and answer the question below
Wittaler [7]

Answer:

hgvcffgebebddbb

Step-by-step explanation:

g

hhgffggggvgfgfgcccc

5 0
3 years ago
Suppose a sample of size 400 yields pˆ = .5. You'd like to construct a confidence interval with a margin of error only half as g
lutik1710 [3]

Answer:

n=\frac{0.5(1-0.5)}{(\frac{0.0245}{1.96})^2}=1600  

c. 1600

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The population proportion have the following distribution

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})

Solution to the problem

In order to solve this problem we need to assume a confidence level. Let's assume that is 95%

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 95% of confidence, our significance level would be given by \alpha=1-0.95=0.05 and \alpha/2 =0.025. And the critical value would be given by:

z_{\alpha/2}=-1.96, z_{1-\alpha/2}=1.96

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)  

First we need to find the margin of error from the original sample given by:

ME=1.96\sqrt{\frac{0.5 (1-0.5)}{400}}=0.049

And on this case we have that ME =\pm 0.049/2=0.0245 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)  

And replacing into equation (b) the values from part a we got:

n=\frac{0.5(1-0.5)}{(\frac{0.0245}{1.96})^2}=1600  

c. 1600

3 0
3 years ago
Other questions:
  • 3. Simplify. <br> a) 5x + 2(x - y) <br> b) 3a - 2b + 4a - 9b <br> c) 2(x - y) + 3(x - y)
    11·1 answer
  • What is the answer to<br> -12(-2-4x)
    12·2 answers
  • Please help me i beg you!!! 30 points!!!
    13·2 answers
  • Solve the equation 4/9y=8/3
    11·1 answer
  • The product of (x+2) (x-3) is​
    8·2 answers
  • Please help asap!!!!!!!!!!!
    5·2 answers
  • Use the GCF and the distributive property to rewrite 15+45
    13·2 answers
  • You have 200 items that cost $20 and you are selling them at the price of $100.
    7·2 answers
  • Please help me. I don’t understand
    9·2 answers
  • Pls answer it i will give brainly and no links pls ty worth 29 points
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!