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
VARVARA [1.3K]
3 years ago
15

Determine the measure of angle BZC.

Mathematics
1 answer:
dusya [7]3 years ago
8 0

Answer:

70 degrees

Step-by-step explanation:

Angle BZA = Angle BZC = 20 degrees

Reason : These two angles are Vertically opposite angles.

Angle BZA + Angle BZC = 90

20 + Angle BZC = 90

Angle BZC = 90 - 20

Angle BZC = 70 degrees

You might be interested in
On Halloween night, Mack collects x pieces of candy and then eats 7 pieces. The next day he eats 10% of his candy pieces and has
IgorLugansk [536]

Answer:80 or 1,071

Step-by-step explanation:

first you add 7+10=17 then you do 17x63=1,071

if its not times then the answer would b 80

6 0
3 years ago
Type the correct answer in each box. Use numerals.
EastWind [94]
2y=-x+9
6y=3(-x+9)

3x-3(-x+9)=-15
3x-(-3x+27)=-15
3x+3x-27=-15
6x=-15+27
6x=12
x=2

2y=-2+9
2y=7
y=7/2

Answer is (2 ; 7/2)
4 0
3 years ago
5<br> If x = 4, what is the value of x(14 - x)?<br> OA<br> 40<br> OB<br> 44<br> 16<br> Math
Elan Coil [88]

Answer:

when x=4

the value of x(14 - x)=4(14-4)=4×10=40

3 0
3 years ago
As the sample size for a t-distribution increases, the differences between the t-distribution and the standard normal distributi
scZoUnD [109]

Answer:

The differences become smaller

Step-by-step explanation:

Normally, we use the t-distribution table rather than the normal distribution when the population standard deviation is unknown and when the sample size is small i.e. less than 30.

Now, as the sample size gets bigger, we will be getting closer to the point where we have to use the normal distribution.

This means that as the sample size increases, the values of the t-distribution will be getting close to that of the normal distribution because normal distribution is used when sample is more than 30.

For example the t-value for a sample of 25 people would be closer to the normal distribution value for a sample of 35 people while a t-value for a sample of 15 people will be far away from the normal distribution value for a sample of 35 people.

Thus, as the sample size increases, the differences between the t-distribution and standard normal distribution becomes smaller.

4 0
3 years ago
Find the least common multiple of three and 21
Sati [7]

Answer:

21

Because:

7 × 3 = 21

1 × 21 = 21

7 0
3 years ago
Read 2 more answers
Other questions:
  • Fill in the missing digits in each problem <br> 33?+5?7+?48= 1300
    13·1 answer
  • A captain and a co-captain are randomly selected from the 12 members of a fencing team. Determine the probability that Lauren is
    12·2 answers
  • Which operation flips the graph over the x-axis?
    5·1 answer
  • F(0)=(0)2+12(0)+11 ?
    15·1 answer
  • Solve for x. 7x−9&lt;12 or 14x+8&gt;11
    10·1 answer
  • Lisa wanted to study how the area of a rectangle changes with the length if it’s width is fixed. She computed the areas of sever
    6·1 answer
  • The figure below shows a shaded circular region inside a larger circle:
    6·1 answer
  • 2x2 – 9x + 2 = –1
    14·1 answer
  • Which of the following best reflects a theme of art influenced by the teachings of Sigmund Freud?
    12·1 answer
  • 1. In 2009 the number of vehicle sales in the United States was 10,602 thousand and in 2013 it was15,884 thousand.a. Determine t
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!