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
vodka [1.7K]
3 years ago
12

For the cyclic quadrilateral ABCD, which statement is true? A) The sum measure of ∠A and ∠B equals 180°. B) The sum measure of ∠

A and ∠D equals 180°. C) The sum measure of ∠B and ∠D equals 180°. D) The sum measure of ∠C and ∠D equals 180°.

Mathematics
2 answers:
xz_007 [3.2K]3 years ago
7 0

Answer:

C

Step-by-step explanation:

kifflom [539]3 years ago
6 0
See the picture attached to better understand the problem

we know that
A quadrilateral is called Cyclic quadrilateral <span>if its all vertices lie on the circle.
</span><span>The opposite angles of a Cyclic - quadrilateral are supplementary
</span>so
∠A+∠C=180°
and
∠B+∠D=180°

therefore
the answer is
<span>C) The sum measure of ∠B and ∠D equals 180°</span>

You might be interested in
HEEELEP ASAP PLZ 15 POINTS + BRAINLIEST
skad [1K]
1334 / 23 = 58
mean (average) = 58 miles per hour

answer
 58 miles per hour
3 0
3 years ago
If y varies directly with x, and y = 18 when x = 4, what is the constant of proportionality?
GREYUIT [131]
Y is directly proportional to x and therefore takes the form y=kx where k is the constant of proportionality.

Dividing both sides by x for the given values, k becomes 18/4 = 4.5
3 0
3 years ago
An automobile manufacturer has given its van a 47.2 miles/gallon (MPG) rating. An independent testing firm has been contracted t
7nadin3 [17]

Answer:

A

The  test statistics is  t  = -1.7

B

The  Null and  Alternative hypothesis are

      H_o  :  \mu = 47.2   and  H_a :  \mu \ne  47.2

Step-by-step explanation:

From the question we are told that

    The population mean is  \mu  =  47.2 miles/gallon(MPG)

    The sample size is  n =  250 \ van

     The  sample mean is  \= x  =  47.0

      The sample  standard deviation is  \sigma  =  1.9

      The level of significance is  \alpha  =  0.02

Given that the value which the manufacturer gave the automobile is  47.2 and  it is believed that this is not correct, then  

The  Null Hypothesis is  

        H_o  :  \mu = 47.2

The alternative Hypothesis  is  

        H_a :  \mu \ne  47.2

The test statistics can be mathematically evaluated as  

        t  =  \frac{\= x- \mu}{\frac{\sigma }{\sqrt{n} } }

substituting values

        t  =  \frac{\= 47- 47.2}{\frac{1.9 }{\sqrt{250} } }

       t  = -1.7

7 0
3 years ago
Please help... What is the exact volume of the sphere?
Stels [109]

Answer:

\large\boxed{V=366.16\pi\ ft^3}

Step-by-step explanation:

\text{The formula of a volume of a sphere:}\\\\V=\dfrac{4}{3}\pi R^3\\\\\text{We have}\ R=6.5\ ft.\ \text{Substitute:}\\\\V=\dfrac{4}{3}\pi(6.5)^3=\dfrac{4}{3}\pi(274.625)=\dfrac{1098.5}{3}\pi\approx366.16\pi\ ft^3

5 0
3 years ago
Question
yuradex [85]

Answer:

(30, ∞)

Step-by-step explanation:

b – 27 > 3

Add 27 to both sides

b > 30

In interval notation

(30, ∞)

8 0
3 years ago
Read 2 more answers
Other questions:
  • Reduce these numbers
    7·1 answer
  • Four friends are sharing a pizza. The chart shows how much pizza each friend ate. Who ate the most pizza?
    15·2 answers
  • Solve this and explain!!!
    11·1 answer
  • Can someone help me on this point slope thing i don’t know what i’m doing
    13·1 answer
  • Can you help me work out this problem 12t-8t=-52​
    7·1 answer
  • Find the radius.<br> 120°<br> Sector Area = 66.99
    7·1 answer
  • 12 inches of rain over 6 days in rate and unit rate
    10·1 answer
  • Callum is walking 270 miles to raise money for cancer research. He plans to walk 1/9 of the distance each day. After 7 days, how
    9·1 answer
  • Can someone help me please :)
    7·2 answers
  • 6. The first quartile (rounded to the nearest tenth if needed) of the following data set is: 15. 16. 17. 23. 11. 19. 20. 15, 18,
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!