Mathematics High School

What does a formal proof need to have?

A.) Written in paragraph form.
B.) Justification for each step.
C.) Written in two-columns form.

Answers

Answer 1

Answer:

B. Justification for each step

Step-by-step explanation:

Answer 2

Answer:

B. Justification for each step

Step-by-step explanation:

Related Questions

Find the coordinate of the midpoint of line 5,6 and 5,3

Answers

Answer:

[tex](5,\frac{9}{2})[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Midpoint Formula: [tex](\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]

Step-by-step explanation:

Step 1: Define

Point (5, 6)

Point (5, 3)

Step 2: Find Midpoint

Substitute:                    [tex](\frac{5+5}{2},\frac{6+3}{2})[/tex]Add:                              [tex](\frac{10}{2},\frac{9}{2})[/tex]Divide:                          [tex](5,\frac{9}{2})[/tex]

Answer:

(5, 4.5)

Step-by-step explanation:

You would want to use the midpoint formula to find the midpoint of line 5,6 and 5,3.

Midpoint formula = [tex]\frac{x1 + x 2}{2} , \frac{y1 + y2}{2}[/tex]

x1 = 5

x2 = 5

y1 = 6

y2 = 3

Plug those into the midpoint formula.

[tex]\frac{5+5}{2} , \frac{6+3}{2}[/tex]

5+5=10/2 = 5

6+3=9/2=4.5

you answer will be (5,4.5)

hope this helps.

On a test Jenna gets 85% of the questions correct, Linda get 32 out of 40 questions correct, Karl gets 7/8 correct, and julie gets 0.83 of the questions correct. List the students in order from lowest to higest.

Answers

Answer:

Linda, Julie, Jenna, Karl

Step-by-step explanation:

Here, we want to list the students in order from lowest to highest

The key here is to have the scores in the same form, let us say decimals for ease of comparison

Jenna: 85% = 85/100 = 0.85

Linda’s= 32/40 = 80% = 0.8

Karl = 7/8 = 0.875

Julie = 0.83

So from lowest to highest, we have;

Linda, Julie, Jenna, Karl

Find the slope of a line that passes through the
following ordered pairs. Reduce to lowest
terms.
(-6, 9) & (2,9).

Answers

Given that,

Point 1 = (-6,9)

Point 2 = (2,9)

To find,

The slope of a line that passes through the given pair.

Solution,

We have,

x₁ = -6, x₂ = 2, y₁ = 9, y₂ = 9.

The formula for the slope of a line is given by :

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}\\\\=\dfrac{9-9}{2-(-6)}\\\\=0[/tex]

Hence, the slope of the line that passes through the given pair is 0.

look at the picture, pls help me!!!

Answers

The answer for the first one it’s 0 there are separate equations right?

Which is the simplified form of the expression
((2^-2)(3^4))^-3 •((2^-3)(3^2))^2
(please be quick!)

Answers

Answer

A

Correct me if I’m wrong

help anyone?????????????????????:))))))))))))))))

Answers

the answers are 7.5 , 12 , 27

Answer:

Step-by-step explanation:

1 cupcake=1.5 dollars

5 cupcakes=5×1.5

=7.5

1.5 dollars=1 cupcake

15 dollars=15/1.5

=10 cupcakes

Can you please help me find FH

Answers

Answer:

is fh not 4x-25

Step-by-step explanation:

How many solutions does this linear system have?
y= 5a-1
-15
3y = 3

Answers

Answer:

The answer would be B one solution

Hope this helps

answer correctly please take ur time and i will give you brainliest

Answers

Answer:

15

Step-by-step explanation:45-30 OVER 3-2= 15

Answer this and I will give you the brainiest 10 pts

Answers

Answer:

4 flavours and 4 topping

mark as brainliest

and put thanks

^_^

Answer/step-by-step explanation:

I believe that the answer is B. 2 flavors and 2 toppings.

I see a total of 8 possibilities with this combo:

1.) Flavor 1 by itself.

2.) Flavor 2 by itself.

3.) Flavor 1 with Topping 1.

4.) Flavor 2 with Topping 1.

5.) Flavor 1 with Topping 2.

6.) Flavor 2 with Topping 2.

7.) Flavor 1 with both toppings.

8.) Flavor 2 with both toppings.

Hope this helps! :D

In the worst snowstorm in Milwaukee history, 8 inches of snow fell in 12 hours. What was
the unit rate of inches of snow per hour?
2
4 inches
11/3 inches
1/2 of an inch
2/3 of an inch
Music off
O
e
Da
10:18 AM
12/11/2020

Answers

Answer:

2/3 inch

Step-by-step explanation:

12 divided by 8

state if the three numbers can be the lengths of the sides of a triangle 7, 19, 9​

Answers

Answer:

Well i am not sure on that but i do know that the angle measures have to add up to 180 degrees hope that helps at least a little

Step-by-step explanation:

Plz l need the answer, If zero lies between a and d, give one set of possible answers for a, b, c, and d.

Answers

Answer:

a= -1, b=0, c=1, d=10

Step-by-step explanation:

You are given  a.......0.........d

a= -1, b=0, c=1, d=10

Mrs. Robertson is preparing manipulatives for her math class. Each student will receive a plastic cup with 20 two-color counters. The total
number of two-color counters, c that Mrs. Robertson needs varies directly as the number of students, S.
Draw a graph showing the proportional relationship between c and s.

Answers

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

The line on the graph showing the number of counters (c) for s students will have a slope of 20.

DUE at 10:30 HELP PLEASE ?

Answers

Answer:

HFG - WUV By SAS similarity

Step-by-step explanation:

The sides are just a variation of each other because 9 is 1/2 of 18, and 21 is 1/2 of 42. Also the angle in-between is equal to each other.

Michelle has a bank account balance of $184. She deposits $38 and then spends $45 when she goes shopping.​

Answers

Answer:

$177

Step-by-step explanation:

Answer:

117

Step-by-step explanation:

184+38=222

222-45=117

sin70° sin130° sin170°=1/8​

Answers

Sin 10° Sin 50° sin 70° = 1/8
Now we multiply upper & bottom both side 2/2

then

➡ 1/2 (2sin 10° sin50° 70°)

➡ 1/2 sin10°( 2sin70° sin50°)

we know that
2 sinA sinB = cos (A-B) - cos (A+B)

Then

➡ 1/2 sin 10° ( cos 20° - cos 120°)

➡ 1/2 sin 10° ( cos 20° - cos (90°+30°))

➡ 1/2 sin 10° ( cos 20° +1/2)

➡ 1/2 sin 10° cos 20° +1/4 sin 10°

again we multiply both upper & bottom side 2/2 so

➡ 1/4 ( 2 sin 10° cos 20°). + 1/4 sin 10°

we know that
2 sinA cos B = sin (A+B) - sin (A- B)

➡ 1/4 (sin 30° - sin 10°) + 1/4 sin 10°

➡ 1/4 sin 30° - 1/4 sin 10° + 1/4 sin 10°

we know sin 30° = 1/2

➡ 1/4 × 1/2

➡ = 1/8 hence proved

Approximate square root of 12 to the nearest tenth.

Answers

Answer:3

Step-by-step explanation:

she fell to the floor and cried all afternoon

simple

compound

complex

Answers

Answer:

Compound.

Step-by-step explanation:

A compound sentence consists of two independent clauses and one coordinating conjunction to join the two clauses together. "She fell to the floor" is the first independent clause and "She cried all afternoon" is the second independent clause while "and" is the coordinating conjunction.

she fell to the floor and cried all afternoon is a compound sentence.

What is compound sentence ?A coordinating conjunction (for, and, nor, but, or, still, or so) plus a comma, or a semicolon alone, can be used to combine two independent clauses to form a compound sentence.A compound sentence is one that joins two independent clauses with a conjunction, most frequently and or but.They work best when integrating two or more independent, connected sentences into a solitary, cohesive one.At least two independent clauses and one or more dependent clauses make up a compound-complex sentence.

To learn more about  compound sentence refer,

https://brainly.com/question/24077833

#SPJ2

20 points



if anybody knows anything about finding like the internal domain and if the function is decreasing please add me on snap I really need the help thankyou ​

Answers

uhhhh whats ur snapppp

Answer:

awesome 100✓jjjjjjjjjjj

add or subtract the following fractions. write in simplest form.

3/4 - 3/10​

Answers

Answer:

I got 9/20

Hope that helps!

Fwd:The hardware store is having a 15% off sale on lawn mowers this weekend. If x is the original price of a lawn mower, what will be the final sales price, excluding tax? Select two that apply. (0.15 + x) , x - 0.15 , 0.15x, (x - 0.15x) , x(1.00 - 0.15)

Answers

Answer:

(x - 0.15x) and x(1.00 - 0.15)

Step-by-step explanation:

Let x be the original price of a lawn mower,

If the hardware store is having a 15% off sale on lawn mowers this weekend, the amount discounted is expressed as;

= 15 % of x

= 0.15 of x

= 0.15x

Final sales price = Original price - discounted price;

Final sales price = x - 0.15x

Factor out x;

x - 0.15x = x(1 - 0.15)

Hence the correct equations are (x - 0.15x)  and x(1.00 - 0.15)

PLEASE HELP!!!
write an equation in slope intercept form for all these below
14.through: (5, 1) slope=3/5
15. through:(2, -4) slope=-1
17. through:(5,-2) and (-5,3)​

Answers

Answer:

14. y= 3/5x-2

15. y= -1x-2

17. -1/2

Step-by-step explanation:

Since you have a point and a slope put it in point-slope form first.

Point-slope form: y-y1=m(x-x1)

Then solve for y.

Then you'll get the slope-intercept form.

For number 17 use the slope-intercept form y=mx+b

rise/run= m= y2-y1/x2-x1

6(10+z+3)=? HELP IT IS DUE TODAY AND I AM ALMOST DONE!!!!

Answers

Answer: 6 (z+13)

Step-by-step explanation:

Answer:

Step-by-step explanation:

10-z=6

We move all terms to the left:

10-z-(6)=0

We add all the numbers together, and all the variables

-1z+4=0

We move all terms containing z to the left, all other terms to the right

-z=-4

z=-4/-1

z=+4

Please help how do I do this ??

Answers

for 10 here is the answer and for 9 i’ll reply to my comment

Select the function that represents the simple interest formula.

Answers

Answer:

C

Step-by-step explanation:

A P E X

What is the image point of (7,-5)(7,−5) after a translation right 3 units and down 1 unit?

Answers

Answer:

The translated image point would then be (10, -6) (10, -6)

Step-by-step explanation:

The image point of (7,-5)(7,−5) after a translation right 3 units and down 1 unit is (4,-6)(4,−6)

What is translation?

A translation is a type of transformation that takes each point in a figure and slides it the same distance in the same direction.

Now the given points are,

(7,-5)(7,−5)

So, when the image points translates right 3 units there is change in x coordinate. Thus,

(7,-5)(7,−5)

= (7-3,-5) (7-3,−5)

= (4,-5)(4,−5)

and, when the image points translates down 1 unit there is change in y coordinate. Thus,

(4,-5)(4,−5)

= (4,-5-1)(4,−5-1)

= (4,-6)(4,−6)

Thus, the image point of (7,-5)(7,−5) after a translation right 3 units and down 1 unit is (4,-6)(4,−6).

To learn more about translation :

https://brainly.com/question/13007985

#SPJ2

Helllpppp meeeee plsssssss

Answers

Answer:

The inequality [tex]\frac{8}{4}\:<\frac{5}{2}\:[/tex]  is true.

Step-by-step explanation:

Given

[tex]\frac{8}{5}<\frac{9}{10}[/tex]

FALSE

Reason: 8/5 or 1.6 is greater than 9/10 or 0.9  

[tex]1>\frac{6}{5}[/tex]

FALSE

Reason: 1 is smaller than 6/5 or (1.1)

[tex]\frac{5}{2}<2\frac{1}{2}[/tex]

converting mixed number to improper fraction

[tex]\frac{5}{2}<\frac{5}{2}[/tex]

FALSE

Reason: 5/2 can not be less than 5/2

[tex]\frac{8}{4}\:<\frac{5}{2}\:[/tex]

[tex]2<\frac{5}{2}[/tex]

TRUE

Reason: 2 is indeed smaller than 5/2 or 5.2        ∵ 5/2 = 2.5

Therefore, inequality [tex]\frac{8}{4}\:<\frac{5}{2}\:[/tex]  is true.

please help this is a prodigy question i'm stuck on

Answers

Answer:

put down the 1/6 and the 1/2 on the number line then calculate the fraction of how far spread they are

Step-by-step explanation:

put down the fractions, calculate how far away they are

2 step explination its 3/6

hope its right................

A snack mix recipe calls for 1 1/2 cups of dip and 1/3 cup of vegetables. Cole wants to make the same recipe using 1 cup of vegetables. How many cups of dip will cole need.
​

Answers

Answer:

4 1/2 cups of dip

Step-by-step explanation:

Let required amount be x

Using the ratio to find x:

1 1/2 ÷ x = 1/3 ÷ 1x = 1 1/2 × 3x = 3/2×3 x = 9/2 x = 4 1/2 cups
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