3 years ago

PLEASE HELP !!!

Mathematics

1 answer:

storchak [24]3 years ago

7 0

Answer: 60°, 72°, 90°, 120° and 180°

Step-by-step explanation:

To calculate the angle of rotational symmetry of a shape or polygon, you make use of this formula

$\frac{360}{n} where n is the number of sides of the shape$

example for a Square with 4 sides. the angle of rotational symmetry is 360/4 =90°.

You might be interested in

In a certain Algebra 2 class of 28 students, 23 of them play basketball and 12

erica [24]

Answer:

5/14

Step-by-step explanation:

P(A or B) = P(A) + P(B) − P(A and B)

25/28 = 23/28 + 12/28 − P(A and B)

P(A and B) = 10/28

P(A and B) = 5/14

3 0

3 years ago

H + 52 72<br> ———- = —-<br> 70. 56

oee [108]

Answer:

h = 38

Step-by-step explanation:

$\frac{h + 52}{70} = \frac{9}{7}$

$h + 52 = \frac{9}{7} \times 70$

$h + 52 = \frac{9 \times 70}{7}$

$h + 52 = \frac{630}{7}$

$h + 52 = 90$

$h = 90 - 52$

$h = 38$

the answer is 38.

5 0

2 years ago

A half gallon of milk cost $2.40 and a gallon cost $3.50 is this proportional or non proportional

PSYCHO15rus [73]

Non proportional because 2×$2.40= $4.80 which is not equal to $3.50

6 0

3 years ago

Read 2 more answers

Find the slope of the following 2 points (2,-5), (9,3)

Rama09 [41]

Answer:

8/7

Step-by-step explanation:

(2,-5) (9,3)

3-(-5)=8 because you apply your keep change change

9-2= 7

so 8/7

4 0

3 years ago

In the figure below AB is a diameter of circle P. What is the arc measure of minor arc AC in degrees?

arlik [135]

Answer:

$P = 139$

Step-by-step explanation:

See attachment for complete question

Required

Determine measure of Arc length AC

The interpretation of this question is to find P

If AB is the diameter, then

$P + 41 = 180$

$P + 41 - 41= 180 - 41$

$P = 139$

<em>Hence, the measure is 139 degrees</em>

3 0

3 years ago