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Zolol [24]
3 years ago
15

Is the sum of √16 and 1.5 rational or irrational?" Justify and explain your answer.

Mathematics
1 answer:
valkas [14]3 years ago
8 0

Answer:

Rational

Step-by-step explanation:

The square root of 16 is 4, and 4 + 1.5 is = to 5.5. An irrational number is defined as infinite and never-ending. Since 5.5 is not infinite, we can conclude that it isn't irrational.

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Will give brainliest, please help fast​
Gekata [30.6K]

Answer:

Converting the equation x^2-20x+13=0 into completing the square method we get: \mathbf{(x-10)^2=87}

Step-by-step explanation:

we are given quadratic equation: x^2-20x+13=0

And we need to convert it into completing the square method.

Completing the square method is of form: a^2-2ab+b^2=(a-b)^2

Looking at the given equation x^2-20x+13=0

We have a = x

then we have middle term 20x that can be written in form of 2ab So, we have a=x and b=? Multiplying 10 with 2 we get 20 so, we can say that b = 20

So, 20x in form of 2ab can be written as:  2(x)(10)

So, we need to add and subtract (10)^2 on both sides

x^2-20x+13=0\\x^2-2(x)(10)+(10)^2-(10)^2+13=0\\(x^2-2(x)(10)+(10)^2) \:can\: be\: written\: as\: (x-10)^2 \\(x-10)^2-100+13=0\\(x-10)^2-87=0\\(x-10)^2=87

So, converting the equation x^2-20x+13=0 into completing the square method we get: \mathbf{(x-10)^2=87}

4 0
3 years ago
What is the volume of a square prism with a base area of 25 square centimeters and a height of 6 centimeters?
bonufazy [111]

Answer:

since, v=a(square) ×h

Step-by-step explanation:

v=a(squate)cm×hcm

v=25(square)cm×6cm

v=625cm×6ccm

v=3,750cm(cube)

7 0
3 years ago
PLZ HELP THIS IS DUE TODAY AND NO LINKS PLZ.
anastassius [24]

Answer:

D is the best answer to the question

8 0
3 years ago
0.000626 L is the same as 6.26 cm3. <br> a. True<br> b. False
Elan Coil [88]
One litre is equivalent to 1000 centimetres cubed.

0.000626 x 1000 = 0.626

Therefore, it is b) or false.
6 0
3 years ago
What is the square root of 81
Talja [164]
The square root of 81 is 9
6 0
3 years ago
Read 2 more answers
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