MATHEMATICS MIDDLE SCHOOL

How many types of symmetry are there?An infinite number
3 1
2

Answers

Answer 1
Answer: There is three different types

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Six grape fruit cost $5.34. How much does one grape fruit cost????

Answers

In order to figure this out, we can set up a proportion and simplify using cross multiplication.

(units_1)/(cost _(1) ) =(units_2)/(cost _(2) ) \n \n (6)/(5.34) = (1)/(x) \n \n 6*x=5.34*1 \n \n 6x=5.34 \n \n x=0.89

One grapefruit costs 89 cents.
You divide 5.53 by 6
And you'll get
.89cents

Which relations are functions? Choose all answers that are correct. A. x –1 1 3 3 y 2 3 4 5 B. A parabola, opening down, is graphed on a coordinate grid. The parabola goes through point 0, 5, point 2, 1, and point negative 2, 1. C. {(−2, 4), (−1, 2), (1, 2), (3, 5)} D. A set of points are plotted on a coordinate grid. The points include point negative 3,3, point negative 1, 1, point negative 1, 6, point 1, 4, point 2, 1, and point 3, 2.

Answers


Explain how you would graph the line containing a slope of –1/5 that goes through the point (1,–4).

I don’t get this. Can any help me

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The average is the sum of the observations divided by the count.

So the sum of the observations is the count times the average.

So the 9 teachers together make 9(1000)=$9000 per week. The 20 staff (9 teachers + 11 aps) makes 20(1275)=25500.

So the 11 aps must make 25500-9000=16500

So the mean ap salary is 16500/11 =$1500 per week

Clearly management is where it's at.

Check: (1500*11+1000*9)/20 = 1275 good

Choice B
The answer is b. Or 1,500.

How many faces does a cone, cube, square pyramid , and triangular pyramid have

Answers

cone : 1
cube:6
Square pyramid:5
Triangular pyramid:4
Cone = 1
Cube = 6
Square Pyramid = 5
Triangle Pyramid = 4
Happy to Help!

HeLP im so bad at math oof

Answers

1. 5.8 x 10^(7)

2. 2.5 x 10^(3)

hope that helps :)

I need help on #3 please

Answers

The surface area of a shape is basically the sum of all the areas on a shape.

We’ve been given that the side is 17 mm.

An area of a square is A=s^2, in which s means side. So we do 17^2 to get the area of ONE of the squares.

Once we do that we get that the area of 1 square is 289.

Since there are 6 squares we need to multiply 289 by 6.

Therefore,

SA=1734mm^2
the surface area is 1734mm
hope this helps:)
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