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Troyanec [42]
3 years ago
13

HELP ASAP!!!! PLEASE!!! :((( Select ALL the polygons that have reflection symmetry.

Mathematics
2 answers:
IgorLugansk [536]3 years ago
7 0
Pretty sure it would be the 1st, 2nd, and 4th shape.
Reil [10]3 years ago
5 0

Answer:

1 and 2

Step-by-step explanation:

I just took the test.

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Estimate the quotient for 5,738 divided by 21
soldier1979 [14.2K]

Answer:

its 273 rounded but say 270

Step-by-step explanation:

3 0
3 years ago
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A central angle theta in a circle of radius 7 m is subtended by an arc of length 8 m. Find the measure of theta in degrees. (Rou
gogolik [260]

Answer: In degrees , The measure of \theta=65.5^{\circ}

In radians , the measure of  \theta =\dfrac{8}{7}\text{ radians}.

Step-by-step explanation:

We know that the formula for length of arc is given by :-

l=\theta r

, where \theta = Central angle subtended by arc.

r= radius of the circle.

As per given , we have

Radius of circle : r=7 m

Length of arc : l=  8 m

Substitute these values in the above formula , we get

8=\theta (7)\\\\\Rightarrow\ \theta =\dfrac{8}{7}\text{ radians}

Hence, the measure of \theta =\dfrac{8}{7}\text{ radians}.

To convert it into degrees we multiply it with \dfrac{180^{\circ}}{\pi}

The measure of \theta =\dfrac{8}{7}\times\dfrac{180^{\circ}}{\pi}

=(\dfrac{8\times180}{7\times3.14})^{\circ}=65.5141037307^{\circ}

\approx65.5^{\circ}

Hence, the measure of \theta=65.5^{\circ}

8 0
3 years ago
4 children want to share 10 submarine sandwiches so that everyone gets the same amount. How much can each child have?​
kifflom [539]

Answer:

Each kid will get 2.5 submarine sandwiches

Step-by-step explanation:

4 0
3 years ago
13 cars are parked in a parking lot. each car has four tires. if seven of the tires are damaged then him many tires are in the p
malfutka [58]

Answer:

45

Step-by-step explanation:

13 x 4 = 52

13 represents # of cars

4 represents tires per car

52 represents total tires

52 tires - 7 damaged tires = 45 undamaged tires

4 0
3 years ago
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The length of a rectangle is (t – 8) units, and its width is ('+ 11) units. Which expression can represent the area of the recta
AVprozaik [17]

Corrected Question:

The length of a rectangle is (t – 8) units, and its width is (t + 11) units. Which expression can represent the area of the rectangle?

Answer:

t² + 3t - 88

Step-by-step explanation:

Given:

Rectangle of;

length = (t - 8) units

width = (t + 11) units

The area A of a rectangle is given by;

A  = length x width ----------------------------------(i)

Substitute the given length and width into equation (i) as follows;

A = (t - 8) x (t + 11)    [expand the brackets]

A = t² -8t + 11t - 88

A = t² + 3t - 88

Therefore, the area is

(t² + 3t - 88) square units

8 0
4 years ago
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