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4 years ago

How many lines of symmetry does the shape have?

Mathematics

1 answer:

jenyasd209 [6]4 years ago

6 0

12
The shape has 12 lines of symmetry because you add
up all the sides

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55*88 PLEASE HELP ME I AM SOO BAD AT MULTILPLING

gizmo_the_mogwai [7]

The answer is 55×88=4840

7 0

3 years ago

Find the area of the triangular prism with 2 sides of the triangle are 5 ft and 1 side is 8 ft. The height of the triangle is 3

Angelina_Jolie [31]

The answer would be that It’s 8 ft

4 0

3 years ago

Find the value of X in the picture please

slamgirl [31]

Answer:

The measure of arc x is 70°

Step-by-step explanation:

we know that

The measurement of the outer angle is the semi-difference of the arcs it encompasses.

and

The inscribed angle is half that of the arc it comprises.

The arc that comprises the inscribed angle of 15 degrees is equal to

15(2)=30 degrees

The outer angle of 20 degrees is equal to

20°=(1/2)[x-30°]

40°=[x-30°]

x=40°+30°=70°

8 0

4 years ago

A jar contains 12 red marbles numbered 1 to 12 and 6 blue marbles numbered 1 to 6. A marble is drawn at random from the jar. Fin

lora16 [44]

Answer:

$(a)P(Red)=\dfrac{2}{3}\\(b)P(Odd) =\dfrac{1}{2}\\(c)P(\text{Red or Odd Numbered})=\dfrac{5}{6}\\(d)P(\text{Blue or Even Numbered})=\dfrac{2}{3}$

Step-by-step explanation:

Number of Red Marbles{1,2,3,4,5,6,7,8,9,10,11,12},n(R)=12

Number of Blue Marbles{1,2,3,4,5,6},n(B)=6

Total Number of Marbles, n(S)=6+12=18

(a)Probability that the Marble is Red

$P(R)=\dfrac{n(R)}{n(S)} =\dfrac{12}{18} =\dfrac{2}{3}$

(b)Probability that the marble is odd-numbered.

Number of Odd-Numbered Balls, n(O)=9

$P(Odd)=\dfrac{n(O)}{n(S)} =\dfrac{9}{18} =\dfrac{1}{2}$

(c)Probability that the marble is red or odd-numbered.

n(Red)=12

n(Odd Numbered marbles)=9

n(Red and Odd Numbered Marbles)=6

$P(\text{Red or Odd Numbered})=P(Red)+P(Odd\:Numbered)-P(\text{Red and Odd Numbered)}\\=\dfrac{12}{18} +\dfrac{9}{18}-\dfrac{6}{18} =\dfrac{15}{18}\\P(\text{Red or Odd Numbered})=\dfrac{5}{6}$ (d)Probability that the marble is blue or even-numbered.

n(Blue)=6

n(Even Numbered marbles)=9

n(Blue and Even Numbered Marbles)=3

$P(\text{Blue or Even Numbered})=P(Blue)+P(Even\:Numbered)-P(\text{Blue and Even Numbered)}\\=\dfrac{6}{18} +\dfrac{9}{18}-\dfrac{3}{18} =\dfrac{12}{18}\\P(\text{Blue or Even Numbered})=\dfrac{2}{3}$

5 0

3 years ago

What is the value of − 9 × ( 1 4 ) ÷ ( − 0.75 ) ?

andre [41]

Answer: 168

Step-by-step explanation:

1. -9 * 14 = -126

2. -126/ -0.75 = 168

8 0

3 years ago