Tessellations

How many lines of symmetry does the figure have?

a. Lines of symmetry: 0
b. Lines of symmetry: 1
c. Lines of symmetry: 2
d. Lines of symmetry: 3

Please select the best answer from choices provided

Answer:

360 sq. units

Step-by-step explanation:

area of DOIT = (20+20) × (3+6)

= 40×9 = 360 sq. units

Answer:

5 men should be subtracted.

Step-by-step explanation:

This question is solved by proportions, using a rule of three.

As these measures(number of men needed and time) are inversely proportional, we multiply the lines instead of cross multiplication.

How many men should be working to complete the work in 32 days?

20 men - 24 days

x men - 32 days

Then

[tex]32x = 20*24[/tex]

[tex]x = \frac{20*24}{32}[/tex]

[tex]x = 15[/tex]

How many men should be subtracted?

There are 20 to complete in 24 days.

15 are needed to complete in 32 days.

20 - 15 = 5

5 men should be subtracted.

Answer:

78.5%

Step-by-step explanation:

the percent of time the point will land in the square can be determined by dividing the area of the square by the area of the circle

A(circle) = 3.14(1)²

A(circle) = 3.14

A(square) = side squared

if radius of square is 1 inch then each side is 2 inches

A(square) = 2²

A(square) = 4 inches

3.14/4 = 78.5%

Answer:

c

Step-by-step explanation:

Answer:

B. 10

Step-by-step explanation:

4, 11, 6, 9, 23, 24, 6, 19

4, 6, 6, 9, 11, 19, 23, 24

9 + 11 = 20

20 ÷ 2 = 10

Answer:

you need to mutiply zero meana503 neary by 500

Answer:

Common factor

Factor by grouping

Factor by grouping

−

2

−

2

+

1

-x^{2}-2x+1

−x2−2x+1

−

1

(

2

+

2

−

1

)

{\color{#c92786}{-1(x^{2}+2x-1)}}

−1(x2+2x−1)

Solution−

-1(x²+ 2x-1 )

Answer:

the answer is d

Step-by-step explanation:

Answer:

A.

Lateral area (LA) = 324 cm²

Surface area = 432 cm²

Step-by-step explanation:

✔️Lateral area of the triangular prism = perimeter of the base (P) × height of prism (L)

Perimeter (P) = 9 + 12 + 15

Perimeter (P) = 36 cm

height of prism (L) = 9 cm

Lateral area (LA) = 36 × 9 = 324 cm²

✔️Surface area = bh + LA

b = 9 cm

h = 12 cm

LA = 324 cm²

Surface area = 9*12 + 324

= 108 + 324

Surface area = 432 cm²

Answer:

B.   B = 70.5° or B' = 109.5°

Step-by-step explanation:

(sin 45°)/13.5 = (sin B)/18

sin B = (18 * sin 45°)/13.5

sin B = 0.9428

B = sin^-1 0.9428

B = 70.5°

B' = 180° - 70.5°

B' = 109.5°

Answer:

2x²–7x–2

Step-by-step explanation:

[tex] = 2 {x}^{2} - 11 - (7x - 9) \\ = 2 {x}^{2} - 7x - 2[/tex]

Answer:

288 due to tuka I am trying this app is good or mot

Answer:83.3

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

if x equals to 6 than

6+6=12

Answer: 375 feet

Step-by-step explanation:

From the question, we are given the information that Sunni is riding a raft down a stream that is moving at a rate of 75 feet per minute.

To calculate how far downstream that she can travel in 5 minute, we have to multiply the distance covered per minute by 5. This will be:

= 75 feet × 5

= 375 feet

Answer:

its the first one

Step-by-step explanation:

Answer:

E. y - 4 = 6(x+2) is the answer

slope:

m = -8-4/-4+2 = 6

Formula:

y - ys1 = m(x - xs1)

hope this helps!

Step-by-step explanation:

Answer:

the answer is 35 mi

Step-by-step explanation:

28 squared = 784

21 squared = 441

784+441 = 1225

Square root of 1225 is 35

Carson = C

Hanford = H

Ridgewood = R

CR²=CH²+HR² <=>

<=> CR²=28²+21²=1225 <=> CR=√1225=35

Answer:

[tex]c)\ 45^\circ[/tex]

Step-by-step explanation:

Given

A semicircle divided into 8 parts

Required

Angle that can be measured with the piece

First, we calculate the minimum angle that can be calculated.

[tex]\theta =\frac{Semi\ circle}{8}[/tex]

[tex]Semicircle = 180^\circ[/tex]

So, we have:

[tex]\theta =\frac{180^\circ}{8}[/tex]

[tex]\theta =22.5^\circ[/tex]

This implies that all angles that can be measured using the piece must be a multiple of 22.5 not greater than 180 degrees (i.e. not greater than the semicircle)

So, we have:

[tex]\theta =22.5^\circ,\ 45^\circ,\ 67.5^\circ,\ 90^\circ,\ 112.5^\circ,\ 135^\circ,\ 157.5^\circ,\ 180^\circ[/tex]

From the list of options, only 45 degrees appear in the possible values of [tex]\theta[/tex]

Hence:

[tex]\theta = 45^\circ[/tex]

Answer:

60º

Step-by-step explanation:

The angles are congruent

and are all 60º

Answer:

180°

Step-by-step explanation:

It will be answer ...............

Answer:

A. flipping a coin to decide whether test subjects should use their left or right hand

Step-by-step explanation:

Since a coin has two outputs: heads or tails, it it has a binomial distribution

Answer:

[tex]total \: balloons = (50 \times 7) \\ = 350 \: balloons \\ none \: yellow \: balloons = 350 - 40 \\ = 310 \: none \: yellow \: balloons[/tex]

Answer:

310

Step-by-step explanation:

The equation that we would use to solve this problem is 7 × 50 - 40 = b

(b is the number of non-yellow balloons)

Since Aaron bought 7 packs of balloons with 50 balloons in each pack, we would need to multiply 7 and 50 to find the total amount of balloons that he bought.

7 × 50 = 350.

Now we subtract 40 (the total number of yellow balloons) from 350 (the total number of balloons), to find the amount of balloons that are not yellow.

350 - 40 = 310

Answer:

Right angle 90 degrees is always going to be a right angle.

Step-by-step explanation:

Answer:

y= 2x-3

Step-by-step explanation:

to find the slope you use rise over run to get 2. to check to see the correct equation replace x with any of the x values in the chart and if you get the same y values as the chart then your equation is correct.

Answer:

Okay, just ask on here maybe

Answer:

60:90

Step-by-step explanation:

The ratio of girls (G) to boys (B) is 2 : 3.

Given the following data:

In this exercise, you're required to find the ratio of girls (G) to boys (B). In order to do this, we would divide the two values to the least.

[tex]G : B = 60 : 90[/tex]

Dividing both sides by 30, we have;

[tex]G : B = \frac{60}{30} : \frac{90}{30} \\\\G : B = 2 : 3[/tex]

Therefore, the ratio of girls (G) to boys (B) is 2 : 3.

Read more: https://brainly.com/question/12212308

Answer:

(-5, 5)

Step-by-step explanation:

Answer:

I don't know the answer

plss ask some one else