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3 years ago

FILL IN THE BLANK PLZ!

Mathematics

1 answer:

BabaBlast [244]3 years ago

7 0

The answer is A. or B. because it states that both the central and inscribed angle have the same endpoints.

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Origami is the Japanese art of paper folding. The diagram below represents an unfolded paper kabuto, a samurai warrior's helmet.

Fed [463]

Option (B) FR and NR, option (C) NO and NM, and option (D) RC and RO are correct.

<h3>What is congruence in geometry?</h3>

The measurements of the sides and angles of two or more geometrical figures determine their congruence. For example triangle's size is determined by its three sides, and its shape is determined by its three angles.

We have:

The diagram represents an unfolded paper kabuto, a samurai warrior's helmet.

Unfolded paper can be seen in the provided figure. The sheet is square.

The diagonals, in this case, are FN and AK, and the midline is CM and OI. At point R, all of these lines converge.

FR ≅ NR

AO ≅ ON

RC ≅ RO

NO ≅ NM

DV ≅ HV

Thus, option (B) FR and NR, option (C) NO and NM, and option (D) RC and RO are correct.

Learn more about the congruence here:

brainly.com/question/20521780

#SPJ1

4 0

2 years ago

What are the coordinates of point Q? HELPP QUICK !!!

DiKsa [7]

Answer:

The coordinates of point Q are $\mathbf{(4,2\frac{1}{2})}$

Step-by-step explanation:

The coordinates of point Q can be found looking at the graph

We need to find the value of x-coordinate and y-coordinate by looking at graph.

Check the value of x-coordinate that matches point Q similarly check the value of y-coordinate that matches point Q

Looking at the graph Point Q is at x=4 and y=2.5 or $2\frac{1}{2}$

So, The coordinates of point Q are $\mathbf{(4,2\frac{1}{2})}$

6 0

3 years ago

For a class experiment, Patrick's class weighed a log before and after subjecting it to termites. Before subjecting it to termit

Kay [80]

Answer:

Step-by-step explanation:

5 0

2 years ago

Suppose you deposit $2,000 in savings account that pays interest at an annual rate of 4%. If no money is added or withdrawn, det

GarryVolchara [31]

Using I = PRT

$2500 - $2000 = $2000 × 0.04 × t

$500 = 80t

t = $500 ÷ 80
t = 6.25 years

so the answer is 6

7 0

3 years ago

A teacher wants to estimate the mean time (in minutes) that students take to go from one classroom to the next. His research ass

PilotLPTM [1.2K]

Answer:

a: We can't determine this from the given information

b: 98%

Step-by-step explanation:

For a:

n = 42

The confidence interval has equal time on each side of µ, so we can add the two end points and divide them by 2 to find the middle of the interaval:

7.4 + 8.6 = 16

16/2 = 8

Now subtract 7.4 from 8 to find the distance from the mean to the end of the interval

8 - 7.4 = 0.6

So the sample mean, plus the calculated error was 0.6 minutes.

We don't have a way of calculating the sample mean with the given information. We could only find the sample standard deviation and the variance.

For b:

We have:

E = 0.6

s = 1.606

n = 42

See attached photo for the calculation of this value

The value is 2.421.

Using a sample size of 42, our degrees of freedom are 41. Use the t-distribution chart to see which level of confidence has 2.421 under it.

The level of confidence is: 98%

We need 41 degrees of freedom, but the chart has only 40, then 45. We can see that 40 has 2.423, and the values go down as the degrees of freedom go up, so 41 will correlate to 2.421

6 0

4 years ago