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ohaa [14]
3 years ago
12

Is 12 rational or irrational ​

Mathematics
1 answer:
wlad13 [49]3 years ago
5 0

Answer: Rational

Step-by-step explanation: 12 is a rational number because it can be expressed as the quotient of two integers: 12÷ 1

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Alex started a new social media account,which he used to post pictures of cute animals. On the first day he only had 8 followers
Hatshy [7]

Answer:

648 followers

Step-by-step explanation:

Let first day=a1

Tripled followers everyday

Second day=a2=a1×3

Third day=a3=a2*3

Fourth day=a4=a3*3

Fifth day=a5=a4*3

a=8 followers

a2=a1×3

=3*8

=24 followers

a3=a2*3

=24*3

=72 followers

a4=a3*3

=72*3

=216 followers

a5=a4*3

=216*3

=648 followers

On the fifth day, Alex will have a total of 648 followers on his new social media account.

7 0
3 years ago
Find the volume of the cone
4vir4ik [10]

Answer:

12\pi units^3

Step-by-step explanation:

V=1/3Bh

=1/3 Area of the base times height

Area of base: \pir^2=4\pi

height=9

4\pi times 9=36\pi

1/3 of 36\pi =12\pi

6 0
3 years ago
A line with a slope of 1 passes through the point (4,2). What is its equation in
dsp73

Answer:

y = x -2

Step-by-step explanation:

Equation of the line : y =mx + b

m = 1

y = 1x + b

Plugin x = 4 and y =2 in this equation

2 = 1*4 + b

2 -4 = b

b = -2

Equation: y = x  - 2

3 0
2 years ago
In △QRS, QR ‖ TU. Given that TQ=6, ST=10, and UR=15, find SU.
tresset_1 [31]

Answer:

SU=25

Step-by-step explanation:

We can set up a ratio as STU and SQR are similar because of the SAS similarity theorem.

TQ:SQ

SQ=ST+TQ=10+6=16

6:16=3:8

Therefore the ratio of STU:SQR is 3:8

We can use this to find SU

UR:SR=3:8

15:SR=3:8

Cross multiply

3SR=120

SR=40

SU=SR-UR

SU=40-15

SU=25

8 0
2 years ago
Factorise<br><br> -3c(d-2e)-d(d-2e)
nlexa [21]
-3c(d-2e) -d(d-2e)
(-3c-d)(d-2e)
-1(3c+d)(d-2e)
3 0
2 years ago
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