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pentagon [3]
2 years ago
5

Fred is a new student who just joined our class. Fred needs help. Please explain to Fred how he can determine which numbers are

rational and which numbers are irrational.
Mathematics
1 answer:
babymother [125]2 years ago
7 0

Answer:

tell fred to go to another school

Step-by-step explanation:

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What is the y -value of the vertex of 4x^2 + 8X -8?
Aleksandr-060686 [28]

Answer:

-12

Step-by-step explanation:

5 0
3 years ago
The volume of sphere Q is 150% more than the volume of sphere P the volume of sphere R is 50% more than the volume of sphere Q F
vazorg [7]

Answer:

1/3.75

Step-by-step explanation:

Let:

Volume of sphere P = x

Volume Sphere Q = x + 150/100x

Volume of Q = x + 1.5x = 2.5x

Volume of R is 50% more than Q

Volume of R = (100 + 50)% of 2.5x

Volume of R = 150/100 * 2.5x

Volume of R = 1.5 * 2.5x = 3.75x

Volume of sphere P as a fraction of sphere R ;

Volume of P / volume of R

x / 3.75x

= 1/3.75

8 0
2 years ago
What is the density of a 60-gram pyramid with rectangular base 5 cm x 7 cm and height 9 cm?
JulijaS [17]

Answer:

0.571428571429 grams per cm³

Step-by-step explanation:

density = mass/volume

Let’s calculate the volume V of the pyramid :

V = (1/3)×base×height

   = (1÷3)×(5×7)×9

   = 105 cm³

Then

The density = mass/volume

                    = 60÷105

                    = 0.571428571429

4 0
2 years ago
5n(3n+8) ..? I don't understand
SSSSS [86.1K]
You have ti distribute the 5n into the brackets. 

so then youll have 15n^2 + 40n. 
5 0
3 years ago
Miles had a piece of paper 1/4 of a large circle cut in three equal parts from the center point of the circle. What angle is the
telo118 [61]
The angle of 1/4 of a circle is given by:
 (1/4) * (360) = 90 degrees
 We now look for the angle that results from dividing 1/4 of a circle into three equal parts.
 We have then:
 (1/3) * (90) = 30 degrees.
 Answer:
 
the measure of each part is:
 
30 degrees
6 0
3 years ago
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