MATHEMATICS MIDDLE SCHOOL

A) Work out the value of (square root of 5)^2 x (square root of 3)^2?

Answers

Answer 1
Answer:

Answer:

15

Step-by-step explanation:

Square root of 5=√5

Square of the square root=(√5)^2

=5

Square root of 3=√3

Square of the square root=(√3)^2

=3

So (square root of 5)^2×(square root of 3)^2

5×3

15

Therefore the final answer is 15

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Over the last week, the daily low temperature in degrees Fahrenheit have been -4, 6.2, 18 1/2, -5/9, 21, -1/4, and 1.75. List these three numbers in order from greatest to least.
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PLEASE PLEASE HELP ME!! NEEDING HELP BADLY!please see the attached image I can't figure out the questions!

Answers


Each paper cup is a cone.
The volume if a cone is      (1/3) (pi) (radius)² (height)

Notice, in the picture they labeled the diameter of the cup = 8 cm.
But we need the radius. that's 1/2 of the diameter = 4 cm.

So, the volume of these paper cups is 

                                           (1/3) (pi) (4cm)² (11 cm) = about 184 cm³
=====================

It says that tons of lemons have been sacrificed, and you have
about  37,850  cm³ of lemonade.

How many cups will that fill ?

       37,850 cm³ / 184 cm³ = about 205 cups.
========================

How many packs of cups do you need to buy ?
Unfortunately, they only come in packs of 50.

1 pack = 50 cups . . . . . not enough
2 packs = 100 cups . . . not enough
3 packs = 150 cups . . . not enough
4 packs = 200 cups . . . oh so close but still not enough

You need to buy 5 packs = 250 cups.
=================================

It started raining, so you only sold 80% of the lemonade that you had.

80% means 0.80
"of" means "times"

You started out with 37,850 cm³ .

You sold  (0.8) x (37,850 cm³) = about  30,280 cm³ of it.

How many cups did you fill with that much lemonade ?
(Remember, each cup holds about 184 cm³.)

         30,280 cm³ / 184 cm³ = about 164 cups sold.

You bought 250 cups to start out.
You sold 164 cups of lemonade.

You had  (250 bought - 164 used) =

               86 clean, unused paper cups, still in the wrappers, left over.

Please explain how to slove thank you.

Answers

The average rate of change of on the interval [a,b] is:

 f(b)−f(a)/ b-a
or
y1-y2/x1-x2 which is how I learned it, average ratw of change is just slope

so you would plug your numbers into x

1st the b: 6((1))^2+31((1))-12
=6+31-12 1^2=1, so it cancels
f(b) =25


2nd the a: 6((-2))^2+31((-2))-12
=6(4)+31(-2)-12
=24+-62-12
f(a) =-50

3rd plug them in: (25- -50)÷(1-(-2)
=75÷3
=25


so your average rate of change(or slope) is 25 :)

What property is 2+0 = 2

Answers

It is the Identity Property of Addition

The identity property of addition is that the sum of any number and its identity value gives the same number as the result. Also, 0 is the identity element.
Identity property of addition

Write the fraction that names each part. Write a fraction in worlds and in number to name the shaded part.

Answers

Fraction number is the rational number. The number which is above the ratio line is called numerator and the number which below the ratio is called the denominator.Fraction name of each part in words is one fourth and Fraction of each part in number is 1/4.

The given figure is image of a triangle.This triangle is further divided into the four triangle. To solve this we must have the idea about the fraction number.

What is fraction number?

Fraction number is the rational number. The number which is above the ratio line is called numerator and the number which below the ratio is called the denominator

Now we have total four part. All this four parts of the triangle is equal to the each other.Thus each part is equal to the one fourth of the big triangle.

  • The fraction that names each part-For the given figure as it is divided into the 4 equal parts hence, the each part of the fraction has the name one fourth.

  • Fraction in words- Fraction name of each part in words is one fourth.
  • Fraction in number- Fraction of each part in number is 1/4.

Thus, Fraction name of each part in words is one fourth and Fraction of each part in number is 1/4.

Learn more about the fraction number here;

brainly.com/question/13398430
Idk this answer because no triangles are shaded.

Help me on number 3 please 50 points

Answers

To do this, we just need to find the unit rate, and then apply the values. 

In the graph, 2 hours would bring you 130 miles. 

Divide: 130/2 = 65

Lets check: 

65 * 8 = 520 

Here's the final answer: Multiply the number of hours by 65 to find the number of miles. 
Your answer would be 520.

Write each decimal in words 0.214

Answers

Two hundred fourteen thousandths ( Don't add the "and" between hundred and fourteen because they will think the number 0.214 is actually written like 200.14)
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