MATHEMATICS HIGH SCHOOL

A triangle has a base of 12 meters and a height of 9 meters.What is the area of the triangle?

A.
21 square meters


B.
42 square meters


C.
54 square meters


D.
108 square meters

Answers

Answer 1
Answer: 0.5 x base x h = 0.5 x 12 x 9 = 54 square meters
the answer is C

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I need help here please..! I took a picture of the Multi -Step equations..!

Answers

There are 8 problems in the picture.  What you need is for someone to give you
some tips and solve one or two of them. 
Giving you a bunch of answers and nothing else does NOT help you.

Here are my tips to you:

A).  You're always trying to find the number that the unknown letter must be equal to,
in order to make the equation a true statement.  That's the solution to the equation,
and the 'answer' to the problem.  

B).  Always do what you have to do in order to get the letter all by itself on one side.

C).  Whatever you do to one side of the equation, you must do to the other side.

==========================================

Examples, from the picture:

#3:  8x - 2 = -9 + 7x    What can you do to get the 'x' all alone on one side?

Subtract 7x from each side:    x - 2 = -9

Add 2 to each side:            x = -7
===========================================
#2:  6 = 1 - 2n + 5  

Combine the 1 and the +5 on the right side:      6 = 6 - 2n

What can you do to get the 'n' all alone on one side?

Subtract 6 from each side:      0  =  - 2n

Divide each side by -2 :      0 = n
===========================================
#5:  4m - 4 = 4m

Subtract 4m from each side:    - 4 = 0

There is no number for 'm' that can make -4 equal to zero.
So this equation has no solution.
(That's OK.  Not every equation must have a solution.)

100 students take a course pass/fail. If they pass they get 4 points towards their GPA, if they fail they get 0. If 90 students pass, what is the mean and standard deviation (to 1 decimal) of the points earned?Mean: ________a0

Standard Deviation:________ a1

Answers

Formulas
Mean = total sum of points / # of data
[Stantard deviation] ^ 2 = {Sum of [every data - mean]^2 } / [number of data - 1]

Procedure:

Mean = total sum of points / # of data

Total sum of points = point of pass + point of fail

points of pass = 90*4 = 360
point of fail = 10*0 = 0
Total sum of points = 360

Number of data = 100

Mean = 360/100 = 3.6

[Stantard deviation] ^ 2 = {Sum of [every data - mean]^2 } / [number of data - 1]

[Sum of every data - mean]^2  = 90*[4 -3.6]^2 + 10* [0 - 3.6]^2 = 14.4 + 129.6 = 144

 [Stantard deviation] ^ 2 = [144]/[100-1] =144/99

Standar deviation = √(144/99) = 1.206


The formula for converting degrees Celsius to Fahrenheit is F=(9)/(5)F+32. Which expression is correctly written to convert Fahrenheit temperatures into degrees Celsius?1) C=(9)/(5)F+32
2) C=(5)/(9)F-160
3) C=(5F-160)/(9)
4) C=32F+160

Answers

F= (9)/(5) C+32\ /\cdot5\n \n5F=9C+160\ \ \ \Rightarrow\ \ \ 9C=5F-160\ /:9\n \nC= (5F-160)/(9) \ \ \ \Rightarrow\ \ \ Ans.\ 3)
the answer to your question is number 3 

What is the prime number of 24

Answers

2*2*2*3 is the prime numbers of 24
the prime number of 24 is 2

The equation of the line of best fit of a scatter plot is y = −8x + 3. What is the the y-intercept? −8 −3 3 8

Answers

The value of the y-intercept for the equation is 3.

What are Scatter plots?

The graphs that show the association between two variables in a data set are called scatter plots. It displays data points either on a Cartesian system or a two-dimensional plane. The X-axis is used to represent the independent variable or attribute, while the Y-axis is used to plot the dependent variable. These diagrams or graphs are frequently used to describe these plots.

Given the equation of the line,

y = -8x + 3

the equation of a line is given by y = mx + c

where m is slop and c is the y-intercept

we can  calculate the y-intercept at x = 0

y = -8x + 3

x = 0

y = 3

Hence y-intercept is 3.

Learn more about Scatter plot;

brainly.com/question/29231735

#SPJ3
to find the y-int set x equal to 0
so y = -8(0) + 3
y = 3
so the answer is 3

Lines that are parallel have the same slope or else no slope.

Answers

Lines that are parallel have the same slope.

Lines that have the same slope are parallel.
This true they must either have the same slope or no slope so that they will never cross each other
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