MATHEMATICS HIGH SCHOOL

Mixed numbers and improper fractions are often the result of measurements or calculations. a. True
b. False

Answers

Answer 1
Answer: i think it is true      hope i helped 

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What is the simplified form of the expression square root of 1/144?

Answers

\sqrt{ (1)/(144)} = \sqrt{ (1)/( 12^(2)) } = (1)/(12)
1/12

When simplifying a radical, pull out any perfect squares. In this case it works out nicely. 1 is the square of 1 and 144 is the square of 12, so you get 1/12.

In another case such as sqrt(20) you can pull out a 4 which is a perfect square which leaves 5. So the answer would be 2sqrt(5).

Solve the equation using square roots. 3x2 + 22 = 49 (1 point)
x = 9, –9
x = 3, –3
x = 13.5, –13.5
No solutions

Answers

my answer I got 9x13and half over 1=x

16 is what percent of 64

Answers

16 / 64 is the same as 1/4 because 16 is 1/4 of 64.

1/4 in percent form is 25%

So, 16 is 25% of 64.
To get the solution, we are looking for, we need to point out what we know. 

1. We assume, that the number 64 is 100% - because it's the output value of the task. 
2. We assume, that x is the value we are looking for. 
3. If 100% equals 64, so we can write it down as 100%=64. 
4. We know, that x% equals 16 of the output value, so we can write it down as x%=16. 
5. Now we have two simple equations:
1) 100%=64
2) x%=16
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=64/16
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 16 is what percent of 64

100%/x%=64/16
(100/x)*x=(64/16)*x       - we multiply both sides of the equation by x
100=4*x       - we divide both sides of the equation by (4) to get x
100/4=x 
25=x 
x=25

now we have: 
16 is 25% of 64

SHOW THAT THE ANGEL BETWEEN ANY 2 DIAGONALS OF A CUBE IS cos-1 (1/3)

Answers

Look\ at\ the\ picture.\n\n|BD|=a\sqrt2\n\n|BD_1|=|DB_1|=a\sqrt3\n\n|BE|=|DE|=(a\sqrt3)/(2)\n\nUse\ law\ of\ cosine:\n\n(a\sqrt2)^2=\left((a\sqrt3)/(2)\right)^2+\left((a\sqrt3)/(2)\right)^2-2\cdot(a\sqrt3)/(2)\cdot(a\sqrt3)/(2)\cdot cos\theta\n\n2a^2=(3a^2)/(4)+(3a^2)/(4)-(3a^2)/(2)cos\theta

(3a^2)/(2)cos\theta=(6a^2)/(4)-2a^2\n\n(3a^2)/(2)cos\theta=(6a^2)/(4)-(8a^2)/(4)\n\n(3a^2)/(2)cos\theta=-(2a^2)/(4)\n\n(3a^2)/(2)cos\theta=-(a^2)/(2)\ \ \ \ \ /\cdot(2)/(3a^2)\n\ncos\theta=-(1)/(3)
Vector for one diagnol (1,1,1) - (0,0,0) = (1,1,1)
Vector for another diagnol (0,1,1) - (1,0,0) = (-1,1,1)

Do cos product of two vectors , that is 

sqrt(3) sqrt(3) cos(theta) = (1,1,1).(-1,1,1)
3cos(theta) = 1.(-1) + 1.(1) + 1.(1) = 1

therefore cos(theta) = 1/3
    angle betwwen diagnols = cos-1 (1/3) 

Which is true about the polynomial ?It is a binomial with a degree of 2.
It is a binomial with a degree of 3.
It is a trinomial with a degree of 2.
It is a trinomial with a degree of 3.

Answers

The polynomial y² – 3y + 12 is trinomial with a degree of 2. Therefore, option C is the correct answer.

The given polynomial is y² – 3y + 12.

What is polynomial?

An expression of more than two algebraic terms, especially the sum of several terms that contain differentpowers of the same variable(s).

Here, the polynomial y² – 3y + 12 is trinomial with a degree of 2

Therefore, option C is the correct answer.

To learn more about the polynomials visit:

brainly.com/question/11536910.

#SPJ5

Answer:

Step-by-step explanation:

 y^2 - 3y + 12

It has 3 terms (y^2) and (-3y) and (12)...therefore, it is a trinomial.

The degree of a polynomial with 1 variable is the highest exponent...so it has a degree of 2. But if it had more then 1 variable, it would be different.

answer is : trinomial with a degree of 2

Can anyone help?? Please

Answers

3O=12/3   Divide both sides by 3.
/3

O=4

♢+2=5(4)
♢+2=20
    -2  -2      Subtract 2

 ♢=18

 2(4)+18=2∆
8+18=2∆
26=2∆
/2     /2      Divide by 2

∆=13
The circle is worth 4 because it's being multiplied by 3. Then the diamond is 18 and the triangle is -5.
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