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3 years ago

5. How many lines of symmetry does the figure below have? if there are no lines of symmetry, write none.

Mathematics

2 answers:

Fantom [35]3 years ago

5 0

There would be 8 lines of symmetry for this shape.

Sergeu [11.5K]3 years ago

3 0

Lines of symmetry are lines that are the same but opposite to each other. For example, a rectangle has 2 lines of symmetry since it has 4 sides and 2 groups of symmetrical lines.
This shape is an octagon, which has 8 sides and 4 groups of symmetrical lines.

So the answer is C. 4.

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What is the approximate length of the hypotenuse of a right triangle with vertices (-6, 2),

muminat

Answer:

Step-by-step explanation:

A(-6, 2), B(6,-3) and C(-6, -3)

AB² = (x₂ - x₁)² + (y₂ - y₁)²

= ( 6 -[-6])² + ( -3 -2)²

= ( 6 + 6)² + ( -3 -2)² = 12² + (-5)² = 144 + 25 =169

AB = √169 = 13 units

BC² = ( -6 -6)² + ( -3 - [-3])² = (-6-6)² + (-3 +3)²

= (-12)² + 0 = 144

BC = √144 = 12 unis

CA² = (-6 - [-6])² +(-3-2)² = (-6 + 6)² + ( -3-2)²

= 0 + (-5)² = 25

CA =√25 = 5 units

length of the hypotenuse of a right triangle = 13units

4 0

3 years ago

Given P=1/2x(y+z),find the value of P,if x=6 and y=9 and z=7

GREYUIT [131]

P=1/2 x(y+z)
P=1/2 (6)[9 + 7]
P = 3(16)
P = 48

hope it helps

8 0

3 years ago

Suppose you roll a die. What is the probability that you do not roll a 4?

7nadin3 [17]

Answer:

5/6

Step-by-step explanation:

There are six sides on a die, and they are asking the probability of not rolling a 4. So it would be 5 out of 6

Have a good day :)

6 0

2 years ago

Conti. 7-10 thanks a lot! unhelpful answers will be deleted.

Marysya12 [62]

Answers:

10. b. $\displaystyle 13$

9. b. $\displaystyle 20$

8. a. $\displaystyle 33$

7. a. $\displaystyle 25°$

Step-by-step explanations:

10. Both segments are considered congruent, so turn both expressions into an equation:

$\displaystyle 3x - 5 = x + 7 \hookrightarrow \frac{-12}{-2} = \frac{-2x}{-2} \\ \\ 6 = x$

Plug this back into the equation to get $\displaystyle 13$ on both sides.

9. All edges in a square obtain congruent right angles and edges, so set $\displaystyle 45$ equivalent to the given expression:

$\displaystyle 45 = 2x + 5 \hookrightarrow \frac{40}{2} = \frac{2x}{2} \\ \\ \boxed{20 = x}$

8. Both angles are considered supplementary, so turn both expressions into an equation and set it to one hundred eighty degrees:

$\displaystyle 180 = (4x - 15)° + (x + 30)° \hookrightarrow 180° = (15 + 5x)° \hookrightarrow \frac{165}{5} = \frac{5x}{5} \\ \\ \boxed{33 = x}$

7. In this rectangle, segment EO is a segment bisectour, making these angles Complementary Angles. Therefore, set an equation up to find its complement:

$\displaystyle 90° = 65° + m\angle{VOE} \\ \\ \boxed{25° = m\angle{VOE}}$

I am joyous to assist you at any time.

3 0

2 years ago

The number 7 is what percent of 10? The number 7 is some percent of 10. Enter that percent.

DanielleElmas [232]

7 is 70% of 10 ......

7 0

3 years ago

Read 2 more answers