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
Alexeev081 [22]
4 years ago
14

Quadrilateral ABCD is inscribed in a circle with angle measures m *PLEASE ANSWER IMMEDIATELY*

Mathematics
1 answer:
USPshnik [31]4 years ago
3 0

Answer:

B and D

Step-by-step explanation:

First method :

All angles of a quadrilateral sums to 360 degrees

A + B + C + D = 360

=> 5x^2 + 36x - 336 = 0

=> x = 6 or x = - 56/5 [It gives negative value of angles]

So, A = 58, B =  109, C = 122, D = 71

Second method :

Sum of opposite angles of a quadrilateral inscribed in a circle is 180 degrees

A + C = 180

=> x = 6

So, A = 58, B =  109, C = 122, D = 71

[If there's any mistake, please inform me]

You might be interested in
Find the circumference of the object. Use 3.14 or
34kurt

Answer:

C = 3.14 ft

Step-by-step explanation:

C = 2πr

Step 1: Define

<em>r</em> = 0.5 ft

Step 2: Substitute and Evaluate

C = 2π(0.5 ft)

C = 1π ft

C = π ft

C = 3.14 ft

4 0
4 years ago
Read 2 more answers
HELP WITH 4 QUESTIONS!!!!
m_a_m_a [10]

When dilation is about the origin, as it is here in every case, the image point coordinates are the original (pre-image) coordinates multiplied by the scale factor.

1. Multiply every coordinate value by 5:

... W' = (-5, 10), X' = (-15, -5), Y' = (25, -5), Z' = (15, 10)

2. Multiply every coordinate value by 1/3:

... A' = (-2, 5), B' = (0, 5/3), C' = (1, 10/3)

3. A' = (2, 8), B' = (6, 2), C' = (2, 2)

4. The image coordinates are 5 times the original coordinates, so ...

... the scale factor of the dilation is 5.

5 0
3 years ago
Un enfermo diabetico debe administrar dos dosis diarias de 0.0005 L de insulina de por vida. Si en la institucion de seguridad s
Stella [2.4K]

Answer:

60 days

Step-by-step explanation:

Let's call h the daily dose of medication that a diabetic person should administer.

We know that:

h = 0.0005 L/day

We know that 0.03 liters is what the social institution provides.

Then we can raise the following equation:

hx = 0.03

Where x is the number of days

So:

x = \frac{0.03}{h}\\\\x = \frac{0.03}{0.0005}

x = 60 days.

After 60 days you will have to return for more doses

3 0
4 years ago
REBECA HAD 9/10 OF A YARDOF RIBBON. THEN SHE GAVE 7/20 OF A YARD OF FRIEND. HOW MUCH DOES SHE HAVE LEFT?
zzz [600]

Answer:

She has 11/20 yds left

Step-by-step explanation:

We take what she had and subtract what she gave away

9/10 - 7/20

We need to get a common denominator of 20

9/10 *2/2 - 7/20

18/20 - 7/20

11/20

She has 11/20 yds left

3 0
3 years ago
In a study of 420,095 Danish cell phone users, 135 subjects developed cancer of the brain or nervous system (based on data from
Maksim231197 [3]

Answer:

z=\frac{0.0003214 -0.00034}{\sqrt{\frac{0.00034(1-0.00034)}{420095}}}=-0.654  

p_v =2*P(Z  

So the p value obtained was a very high value and using the significance level given \alpha=0.005 we have p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can say that the true proportion not differs significantly from the specified value of 0.00034 or 0.034%.

Step-by-step explanation:

1) Data given and notation  

n=420095 represent the random sample taken

X=135 represent the subjects developed cancer of the brain or nervous system (based on data from the Journal of the National Cancer Institute as reported in USA Today)

\hat p=\frac{135}{420095}=0.0003214 estimated proportion of subjects developed cancer of the brain or nervous system (based on data from the Journal of the National Cancer Institute as reported in USA Today)

p_o=0.00034 is the value that we want to test

\alpha=0.005 represent the significance level

Confidence=99.5% or 0.995

z would represent the statistic (variable of interest)

p_v represent the p value (variable of interest)  

2) Concepts and formulas to use  

We need to conduct a hypothesis in order to test the claim that the brain or nervous system at a rate that is different from the rate of 0.0340% :  

Null hypothesis:p=0.00034  

Alternative hypothesis:p \neq 0.00034  

When we conduct a proportion test we need to use the z statistic, and the is given by:  

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

The One-Sample Proportion Test is used to assess whether a population proportion \hat p is significantly different from a hypothesized value p_o.

3) Calculate the statistic  

Since we have all the info requires we can replace in formula (1) like this:  

z=\frac{0.0003214 -0.00034}{\sqrt{\frac{0.00034(1-0.00034)}{420095}}}=-0.654  

4) Statistical decision  

It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.  

The significance level provided \alpha=0.005. The next step would be calculate the p value for this test.  

Since is a bilateral test the p value would be:  

p_v =2*P(Z  

So the p value obtained was a very high value and using the significance level given \alpha=0.005 we have p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can say that the true proportion not differs significantly from the specified value of 0.00034 or 0.034%.  

4 0
3 years ago
Other questions:
  • Solve A=P/rl for l<br> ASAP!!
    14·2 answers
  • You have to bake a lot of brownies for your 6th grade fund raiser! Although you have plenty
    11·1 answer
  • In circle P, what is the measure of ADB?
    5·1 answer
  • 3. what are the approximate solutions of 2x^2-x+10=0? a. -2,2.5 b. -1.97,2.47 c. -2.5,2 d. no solution
    7·1 answer
  • Solve x:<br> 6 - x/2 = 10<br> --Please Help! Maths Homework Due In For Monday! Xx
    5·2 answers
  • A research team is testing whether a fuel aditive increases a car's gas mileage. The maker of the additive claims that the addit
    11·1 answer
  • Whats the profit earned as a function ?
    13·2 answers
  • Phoebe, Andy and Polly share £270
    8·1 answer
  • PLEASE HELP WILL GIVE BRAINLIEST!!!!!
    6·1 answer
  • What is 83.715 rounded to the nearest whole number​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!