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VMariaS [17]
3 years ago
12

Identify the angles of rotational symmetry for the figure. + Rotational symmetry

Mathematics
2 answers:
lorasvet [3.4K]3 years ago
7 0

Answer:

144

Step-by-step explanation:

Serjik [45]3 years ago
3 0

Answer:

90 180 270

Step-by-step explanation:

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HELP PLS
Snezhnost [94]

Answer:

a loss of 72.47

Step-by-step explanation:

I got this answer right on my test

6 0
3 years ago
What is the best way to find the solutions of the equation 5x^2 - 2x - 6= 0, and why?
lara31 [8.8K]

What are you trying to find? For example the x intercepts? y intercepts? vertex form? etc.

6 0
3 years ago
7. A study reported that in a random sampling of 100 women over the age of 35 showed that 8 of the women were married 2 or more
Pavel [41]

Hi! The answer is going for be D (400)

Step-by-step explanation:

Out of 100 women, 8 were married 2 or more times which is 8% or 0.08

So out of 5000 women, the number of women married 2 or more times is: 0.08*5000 = 400

x/5000 = 8/100

x/50=8/1

x=400

Hope this helps! Have a good day!

6 0
1 year ago
1. Homer has an idea for a new donut shop. He wants to design the donut shop so that the rectangular
Tju [1.3M]

Solving a <em>system of equations</em>, it is found that since the <u>quadratic equation has two positive roots</u>, they can be the values of the length and the width, and the design is possible.

The perimeter of a <u>rectangle of length l and width w</u> is given by:

P = 2(l + w)

The area is:

A = lw

In this problem, perimeter of 63.5 m, hence:

2l + 2w = 63.5

2l = 63.5 - 2w

l = 31.75 - w

Area of 225 m², hence:

lw = 225

(31.75 - w)(w) = 225

w^2 - 31.75w + 225 = 0

Which is a quadratic equation with coefficients a = 1, b = -31.75, c = 225.

Then:

\Delta = b^2 - 4ac = (-31.75)^2 - 4(1)(225) = 108.0625

w_1 = \frac{-b + \sqrt{\Delta}}{2a} = \frac{31.75 + \sqrt{108.0625}}{2} = 21.1

w_2 = \frac{-b - \sqrt{\Delta}}{2a} = \frac{31.75 - \sqrt{108.0625}}{2} = 10.68

Since the <u>quadratic equation has two positive roots</u>, they can be the values of the length and the width, and the design is possible.

A similar problem is given at brainly.com/question/10489198

6 0
2 years ago
Help, please, I'll give brainliest
balu736 [363]
240 seats per row I dont have explaination option so hope its helpful
6 0
3 years ago
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