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Mama L [17]
3 years ago
9

Can a rational number be subtracted by a irrational number an equal a rational number?

Mathematics
1 answer:
vladimir2022 [97]3 years ago
4 0

Answer:

No

Step-by-step explanation:

The sum of a rational number and an irrational number is irrational.

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What is the volume of this square pyramid?<br> Enter your answer in the box.<br><br> cm³
Alenkinab [10]
The problem can be solve using the formula for the volume of square pyramid such as below:
Volume = a² * (h/3) where "a" is for the base edge and "h" is for the height

From the picture, we are given with values such as:
a = 14 cm
h= 24 cm

Solving for the volume, we have:
Volume = 14²*(24/3)
Volume = 1568 cm³
3 0
3 years ago
No Links
Alecsey [184]

Answer:

8

Explanation:

Since 30 people have already voted, they need 30 more to vote so that they will have 60 votes. Since Devon got 4 votes the first time we will double that to go to 60 votes which than gives you your solution of 8 answer choice B.

4 0
3 years ago
Simplify the expression
Molodets [167]

Answer:

8x^8/3 y^4 - The first option

Step-by-step explanation:

The first thing we need to do is the exponent outside the bracket and leave the 8 till last, because exponents always come before multiplying coefficients. When an term with an exponent is multiplied by another exponent outside a bracket, the exponents of both terms are multiplied by the exponent outside the bracket.

This means that the expression is now:

8(x^2*4/3 y^3*4/3)

First we can so the x term. The x term already has an exponent of 2, so the 2 is multiplied by the 4/3 exponent outside the bracket. 2*4/3 = 8/3, so the x term is now: x^8/3

The same happens to the y term: 3*4/3 simplifies to 4, so the y term is now y^4.

So now our expression is:

8(x^8/3 y^4)

Now the 8 outside the bracket simply multiplies on to the whole term so we finish with:

8x^8/3 y^4 - The first option.

Hope this helped!

7 0
3 years ago
The sum of twice a number d and 13 is 12
Mariana [72]
2d + 13 = 12

d = -0.5

-0.5 × 2 = -1

13 + (-1) = 12

Hope this helped☺☺

Explanations:

Twice a number d and 13 = 2d + 13 

The sum = Total 

Is 12 = "= 12"

That equals :

2d + 13 = 12




4 0
4 years ago
What is the value of the expression 5y2 + 4x when x = 2.5 and y = 3?
galina1969 [7]

Answer:

The answer is 40

Step-by-step explanation:

5*3=15

15*2=30

4*2.5=10

So 30+10=40

Hope this helps!!

7 0
3 years ago
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