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Oksi-84 [34.3K]
3 years ago
7

Select all the polygons that have reflection symmetry.

Mathematics
2 answers:
marusya05 [52]3 years ago
8 0

The first one has symmetrical rreflection qualities

vladimir1956 [14]3 years ago
3 0

Answer: Picture 1 and Picture 2.

I took a test and got it right :)

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If xh=10 feet and mxy =100 degrees then determine the arc length of xy
schepotkina [342]

Answer:

The arc length XY is equal to \frac{50}{9}\pi\ ft  or 17.4\ ft

Step-by-step explanation:

The picture of the question in the attached figure

step 1

Find the circumference of the circle H

The circumference is given by the formula

C=2 \pi r

we have

r=xh=10\ ft

substitute

C=2 \pi (10)\\C=20\pi\ ft

step 2

we know that

The circumference of a circle subtends a central angle of 360 degrees

so

using proportion

Find out the length of the arc xy if the central angle is equal to 100 degrees

Remember that

m\angle XHY=arc\ XY=100^o ---> by central angle

\frac{20\pi}{360^o}=\frac{x}{100^o}\\\\x=20\pi(100)/360\\\\x=\frac{2,000}{360}\pi\ ft

Simplify

x=\frac{50}{9}\pi\ ft ----> exact value

To find out the approximate value

assume

\pi=3.14

substitute

x=\frac{50}{9}(3.14)=17.4\ ft ----> approximate value

therefore

The arc length XY is equal to \frac{50}{9}\pi\ ft  or 17.4\ ft

7 0
4 years ago
Can anyone help me please
Ipatiy [6.2K]

Answer:

Step-by-step explanation:

We need to check each u value to say if each one is correct...

8 \leq u - 27

when u = 33

8 \leq 33 - 27

8 \leq 6

and it's true!

So, 33 is solution

when u = 39

8 \leq 39 - 27

8 \leq 12

It isn't true. No solution!

When u = 31

8 \leq 31 - 27

8 \leq 4

It's true and it also is a solution.

when u = 35

8 \leq 35 - 27

8 \leq 8

it's true and it also is a solution.

4 0
3 years ago
I need help on this pleaseee
xz_007 [3.2K]

Answer:

your answer is d, its very similar to c, but its d bc its goes up as a posative, so in that case it will be the (x+6)

Step-by-step explanation:

Hopefully this helped, if not HMU and I will get you a better answer!

5 0
3 years ago
Please help ❤️<br> Find the value of x
irinina [24]

Answer:

-2/15

Step-by-step explanation:

14x+x+15=13

3 0
3 years ago
Read 2 more answers
I need help with number 42 please
shusha [124]

Answer:

yes, it’s proportional

Step-by-step explanation:

3 0
1 year ago
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