MATHEMATICS HIGH SCHOOL

Evaluate m0 - n2 for m = 2 and n = -1.

Answers

Answer 1

Answer:

Given:

m = 2 & n = -1

so, m0 - n2

= 2*0 - (-1)*2

= 0 - (-2)

= 0 + 2

= 2

What is algebra?

Algebra is a branch of mathematics dealing with symbols and the rules for manipulating those symbols. In elementary algebra, those symbols (today written as Latin and Greek letters) represent quantities without fixed values, known as variables.

What is variable?

A variable is a symbolic name for (or reference to) information. The variable's name represents what information the variable contains. They are called variables because the represented information can change but the operations on the variable remain the same.

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Answer 2

Answer: this is simply a plug n' chug method. you plug in the values and solve

m=2
n= -1

(2)0 - (-1)2 (Plug)
0 - (-2) (solve)
0+2 (simplify)
2 (answer)

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EXTRA CREDIT MATH HELP!!! (2/6)

Which restriction is appropriate for the variable?3y^2 - 3y/y-1

A. no restrictions are needed
B. y= -1
C. y =1
D. y = 3 <---

Answers

Best answer is y=1
Because if the denominator is equals to 1, then the answer will be undefined and we don't want it to be undefined.

If A+B=76 and A -B=38 whats A divided by B

Answers

$+\left\{\begin{array}{ccc}A+B=76\nA-B=38\end{array}\right\n---------\n.\ \ \ \ \ \ \ 2A=114\ \ \ \ /:2\n.\ \ \ \ \ \ \ \ A=57\n\n\left\{\begin{array}{ccc}A=57\nA+B=76\end{array}\right\n\left\{\begin{array}{ccc}A=57\n57+B=76\end{array}\right\n\n\left\{\begin{array}{ccc}A=57\nB=76-57\end{array}\right\n\left\{\begin{array}{ccc}A=57\nB=19\end{array}\right\n$

$A:B=57:19=3$

Toothpicks are used to make a grid that is 60 toothpicks long and 32 toothpicks wide. How man toothpicks are used altogether?

Answers

Finding how many toothpicks were used altogether is the same process as finding the area, so we have to multiply 32 by 60 which equals 1920. So the final answer is 1920

Final answer:

To find the total number of toothpicks used in the grid, calculate the perimeter of the grid by adding the lengths of all its sides. In this case, the perimeter is 184 toothpicks.

Explanation:

To find the total number of toothpicks used in the grid, we need to calculate the perimeter of the grid. The perimeter of a rectangle is found by adding the lengths of all its sides. In this case, we have a grid that is 60 toothpicks long and 32 toothpicks wide. So, the perimeter is (60 + 32 + 60 + 32) = 184. Therefore, a total of 184 toothpicks are used altogether.

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The equation of the line of best fit of a scatter plot is y = 12x + 7. What is the slope of the equation? −12 −7 12 7

Answers

Well,

Slope-intercept form is given as follows:
y = mx + b

In this equation, "m" is the slope, and "b" is the y-intercept.

y = 12x + 7

We can clearly see that the 12 in the equation is the "m" in the general slope-intercept form.

Therefore, the slope of the equation is 12.

i would say 12 i think

Can someone help me in probability?Amanda wrote a computer program that generates two random numbers between one and eleven.When she runs it,what is the probability that both values will be more than three?

Answers

the probability is a fraction. all possible outcomes / number of items
so 8/11 is the probablity of finding a number higher than 3 out of 11
could also be written as:
8/11
8:11
.73
73 percent

Please show me how to solve for Xsquared - 21.75X = -15.75. I have the solution but do not know how to solve it.

Answers

$x^2-21.75x=-15.75 \nx^2-21.75x+15.75=0$

Use the quadratic formula:
$x^2-21.75x+15.75=0 \n \na=1 \n b=-21.75 \n c=15.75 \n b^2-4ac=(-21.75)^2-4 * 1 * 15.75=473.0625-63=410.0625 \n \nx=(-b \pm √(b^2-4ac))/(2a)=(-(-21.75) \pm √(410.0625))/(2 * 1)=(21.75 \pm 20.25)/(2) \nx=(21.75-20.25)/(2) \ \lor \ x=(21.75+20.25)/(2) \nx=(1.5)/(2) \ \lor \ x=(42)/(2) \nx=(15)/(20) \ \lor \ x=21 \nx=(3)/(4) \ \lor \ x=21 \n\boxed{x=(3)/(4) \hbox{ or } x=21}$

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