Answer:
1) 22
2)12
3)-80
4)-16
5)-10.5
6)-10
Step-by-step explanation:
-12x + 2y when x = -2 and y = -1
= -12 (-2) + 2 (-1)
= 24 + (-2)
= 22
10 + a - b when a = -4 and b = -6
= 10 + (-4) - (-6)
= 10 - 4 + 6
= 10 + 2
= 12
8(n-3) when n = -7
= 8 (- 7 - 3)
= - 56 - 24
= - 80
3 - x + 2(-x + 4) when x = 9
= 3 - 9 + 2 (- 9 + 4)
= - 6 - 18 + 8
= - 24 + 8
= - 16
12 - (15 + y) / 6 - 8 when y = -3
= 12 - 15 + 3 / 6 - 8
= 12 - 15 + 0.5 - 8
= - 3 - 7.5
= - 10.5
15 - a(-b) when a = 5 and b = -5
= 15 - 5 (5)
= 15 - 25
= - 10
Draw and label a coordinate plane, including the four quadrants and the positive or negative values of x and y in each quadrant. pls help
Answer:
the answer is c
Step-by-step explanation:
PLZ HELP
A dutch door is a door that is split in half to allow the top and bottom to open seperatley. the top section of a dutch door is 3.25 feet tall and the bottom section is 3 3/4 feet tall. Write an inequality that compares the heights of the top and bottom sections of the door
Answer:
The top door is .25 feet taller than the bottom one.
Step-by-step explanation:
Geo 3 - What Makes a Rectangle?
PART 1: WHAT MAKES A RECTANGLE?
Answer this problem on the Student Template, using the words from the word bank.
Use words and pictures to show your answer.
Check your answer in your Math Dictionary.
PART 2: RECTANGLES = SQUARES?
Mr. Raskin says "All squares are rectangles, so all rectangles are also squares. Duh!"
He is wrong, again.
Use your Math dictionary, words, and pictures to explain his error.
Add your explanation to Seesaw.
Geo 3 - What Makes a Rectangle?
PART 1: WHAT MAKES A RECTANGLE?
Answer this problem on the Student Template, using the words from the word bank.
Use words and pictures to show your answer.
Check your answer in your Math Dictionary.
Answer:
Just read explanation
Step-by-step explanation:
In Euclidean plane geometry, a rectangle is a quadrilateral with four right angles. It can also be defined as an equiangular quadrilateral, since equiangular means that all of its angles are equal. It can also be defined as a parallelogram containing a right angle. A rectangle with four sides of equal length is a square. The term oblong is occasionally used to refer to a non-square rectangle. A rectangle with vertices ABCD would be denoted as ABCD.
Use the diagrams below to find the lengths of the missing sides. Figures in each diagram are similar.
X=8
X=4
X=6
X=2
Answer:
x=6Step-by-step explanation:
The two triangles are similar
so the equation is
[tex] \frac{12}{18} = \frac{4}{x} [/tex]
[tex]12x = 72[/tex]
[tex]x = \frac{72}{12} [/tex]
[tex]x = 6[/tex]
HELP PLS THIS IS DUE IN 10 MINUTES
Answer:
He could buy 2 brackets
Step-by-step explanation:
42.50- 29= 13.50 and if you buy two that's nine (9.00) + plus tax does not go over budget (shirt included)
Hey guys!!!!!!!
I have a really quick question
So how many terms are in this problem
5+6x4
And guys, I really need help.
Answer:
no terms
Step-by-step explanation:
if you mean terms as "x" and "y" then there are no terms
Draw and label a coordinate plane, including the four quadrants and the positive or negative values of x and y in each quadrant.
Answer:
It is potatoman.
Solve:
2(4x + 4) = 24
X=
PLEASE HELP!!! Fast!!!
Answer:
x=2
Step-by-step explanation
The First step is to distribute the '2" into the parenthesis.
thus, you have 8x + 8 = 24
now we need to get x by itself so we will subtract 8 from both sides to get 8x by itself.
we know have 8x = 16
now divide by 8 to get x
x=2
which of the following statements about the points (-4,6) and (4,-6) are true
Answer:
c
Step-by-step explanation:
Pleas help me, asap..
Pattern x. Starting number: 8, add 4.
Add 4 each time to the number, to get the answers:
8 + 4 = 12
12 + 4 = 16
Order:
x: 8 , 12 , 16
Pattern y. Starting number: 4, add 2.
Add 2 each time to the number, to get the answers:
4 + 2 = 6
6 + 2 = 8
Order:
y: 4 , 6, 8
Answer:
[tex]\left[\begin{array}{cc}x&y&\\8&4&\\12&6&\\16&8&\end{array}\right][/tex]
~
Pls help ill give brainliest
ANSWER : m=2/3
m= 1
mark me brainleist
m = 2
I think
It might not be..
I'm not vry
smart
so..
The graph of an exponential function, y=ab^x produces an asymptote at the line y=0
true or false?
Thanks so much have nice day!
Answer:
False
Step-by-step explanation:
Which of the following numbers is irrational?
negative 9 over 5, square root of 5, 7 over 3, square root of 9
negative 9 over 5
square root of 5
7 over 3
square root of 9
which one is greatest (please show work)
2/7
1/3
3/13
1/13
1/15
Answer:
1/3 is closer to 1 whole
Step-by-step explanation:
An art class is making a mural for their school which has a triangle drawn in the middle. The length of the bottom of the triangle is x. Another side is 14 more than two times the length of the bottom of the triangle. The last side is 10 more than the bottom of the triangle. Write and simplify an expression for the perimeter of the triangle.
What is the expression for the perimeter of the triangle? Show your Work.
Simplify: 3x + 2(x - 1)
Answer:
5x -2
Step-by-step explanation:
literally did this in my head but
2 * x = 2x
2 * -1 = -2
2x + 3x = 5x -2
Answer:
5x-2
Step-by-step explanation:
3x+2(x-1)
3x+2x-2
5x-2
Select the correct answer from each drop-down menu. Wayne and Winston collect old coins. Winston has 8 fewer coins than Wayne has. If you add 4 times the number of coins Wayne has and 3 times the number of coins Winston has, the sum is 375. This system of linear equations relates the number of coins Wayne has (x) and the number of coins Winston has (y). y = x − 8 4x + 3y = 375 The best method to solve this system of equations is . Wayne has coins, and Winston has coins.
Answer:
is it timetable just wanna know an i help
Step-by-step explanation:
10x- (- 4 + 7x
answer if you can :)
Answer:
17x + 4
Step-by-step explanation:
The -(- would be turned into a positive due to the rule of two negatives makes a positive. You wouldn't add the 4 into either of the numbers with a variable, you would only add the 10x and 7x.
Answer:
3x+4
Step-by-step explanation:
Apply the distributive property to get 10x - -4-(7x). Now we can turn the two negatives into a positive to get 10x+4-7x. Now, subtract 7x from 10x to get 3x. This will leave you with 3x+4.
I need help ASAP T^T
I will give brainliest to the correct answer!!
8. Conduction. (Conduction is the transfer of heat that happens when particles collide with each other. It can happen in solids, liquids, and gases.)
Before the pan is placed on the burner, its particles are moving at the same average speed. The whole pan is at the same temperature. The hot burner is at a much higher temperature. In other words, the particles that make up the burner are moving at a greater average speed and therefore have greater thermal energy.
8b. Convection. During convection, however, the particles themselves move. This happens only in liquids and gases because the particles in solids are stuck in place and cannot move.
Answer:
8. Conduction happens it transfers the heat when particles collide with each other. Before the pan is placed on the burner, its particles are moving at the same average speed. The whole pan is at the same temperature. The hot burner is at a much higher temperature, than the pan which causes the particles to move at a uneven speed.
8 b. Convection. During convection, the particles move. This happens only to liquids and gases particles because in solid objects the particles get stuck which doesn’t allow them to move around.
Step-by-step explanation:
Order the following values from least to greatest: 1/8, 1.125, and 2/5%.
Explain how you arrived at your answer.
Answer:
2/5% 1/8 1.125
Step-by-step explanation:
prove me wrong
Answer:
2/5%, 1/8, 1.125
Step-by-step explanation:
1/8 in a decimal would be 0.125
2/5% in a decimal would be 0.004
Lorenzo wants to buy a guitar. The original price is $70. What is the sale price?
Answer:
35 dollars
Step-by-step explanation:
50% of $70 is $35
Select all the statements that are true for any value of x.
A. 7x + (2x + 7) = 9x + 7
B. 7x + (2x - 1) = 9x + 1
C. 3x + (10 - 3x) = 10
D. 5x – (8 - 6x) = -x - 8
E. 4x - (2x + 8) = 2x - 8
F. 6x - (2x - 4) = 4x + 4
Answer:
A,C,E,F
Step-by-step explanation:
when it is 0=0 it means it is true for all. or x=x.
The true statements for x are letters: A,C, E, and F.
Addition Sign RulesHere it is important to remember the rules for the addition of integers numbers:
+ + Add Final result (+) - Final result (+)
- - Add Final result (-) - Final result (-)
+ - Subtract - Final result (the sign of the integer having a greater value)
- + Subtract - Final result (the sign of the integer having a greater value)
Multiplication Sign RulesThe rules for multiplication of numbers are:
+ + or - -
The result presents a positive sign (+) because the signs are the same.
+ - or - +
The result presents a negative sign (-) because the signs are different.
For solving this question, you should apply the rules presented previously. And after that check, if your result is the same that the question gives.
Check Letter A7x + (2x + 7) = 9x + 7
7x+2x+7
9x+7=9x+7
True
Check Letter B7x + (2x - 1) = 9x + 1
7x+2x-1
9x-1≠9x + 1
False
Check Letter C3x + (10 - 3x) = 10
3x+10-3x
10=10
True
Check Letter D5x – (8 - 6x) = -x - 8
5x-8+6x
11x-8≠-x - 8
False
Check Letter E
4x - (2x + 8) = 2x - 8
4x-2x-8
2x-8=2x-8
True
Check Letter F6x - (2x - 4) = 4x + 4
6x-2x+4
4x+4=4x+4
True
Read more about rules for multiplication here:
brainly.com/question/16119150
#SPJ2
The graph of an exponential function y=ab^x, if b is less than one, decreases from left to right. Assume a>0 and x>0.
True or false?
another question math
Simplify 6(x - 3) - 4(x + 1)
2x - 22
2x - 14
2x - 2
Answer:
2x - 22
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyAlgebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define
6(x - 3) - 4(x + 1)
Step 2: Simplify
Distribute: 6x - 18 - 4x - 4Combine like terms (x): 2x - 18 - 4Combine like terms (Z): 2x - 22Pls help me I am confused
Answer:
[tex]\huge\boxed{A.\ \dfrac{565}{182}}[/tex]
Step-by-step explanation:
[tex]\dfrac{8}{7}-(5x-3)=\dfrac{1}{5}x-12\\\\\dfrac{8}{7}-5x+3=\dfrac{1}{5}x-12\qquad|\text{multiply both sides by 35}\\\\35\cdot\dfrac{8}{7}-35\cdot5x+35\cdot3=35\cdot\dfrac{1}{5}x-35\cdot12\qquad|\text{simplify}\\\\5\cdot8-175x+105=7\cdot x-420\\\\40-175x+105=7x-420\\\\-175x+(40+105)=7x-420\\\\-175x+145=7x-420\qquad|\text{subtract 145 from both sides}\\\\-175x=7x-565\qquad|\text{subtract }7x\ \text{from both sides}\\\\-182x=-565\qquad|\text{divide both sides by (-182)}\\\\x=\dfrac{565}{182}[/tex]
Answer:
A
Step-by-step explanation:
Simplify:
2.4 + 8.4q – 0.3q – 7.9
A. 8.1q + 5.5
B. –8.1q – 5.5
C. 8.1q – 5.5
D. –8.1q + 5.5
Answer:
C
Step-by-step explanation:
not really an explanation just do the subtraction and addition from left to right
Josh and his friends bought vanilla wafers for $4 per packet and chocolate wafers for $1 per packet at a carnival. They spent a total of $45 to buy a total of 27 packets of wafers of the two varieties.
Part A:
Write a system of equations that can be solved to find the number of packets of vanilla wafers and the number of packets of chocolate wafers that Josh and his friends bought at the carnival.
Define the variables used in the equations.
Part B:
How many packets of chocolate wafers and vanilla wafers did they buy?
Explain how you got the answer and why you selected a particular method to get the answer.
Write an Equation that represents the following word problem.
The average teenager spends 2.9 hours a day watching television. How much time do they spend each week watching television?
Will Mark Brainliest.
What is the area, in square units, of the parallelogram shown below?
A parallelogram ABCD is shown with height 12 units and base 8 units.
(1 point)
12 square units
24 square units
48 square units
96 square units
To figure out the area of a parallelogram, we need to identify its formula. However, I do know the formula, which is Area = Base x Height.
Area = Base x Height
Area = 8 x 12
= 96 cm squared
Therefore, the answer it 96 cm squared. By the way, I recommend that you review and comprehend the topic regarding area. Try memorizing all formulas for the shapes.
Rectangle & Square: Area = length x width
Triangle: Area = base x height
2
Trapezoid: Area = (Base 1 + Base 2) x h
2
Pararellogram: Area = base x height
Circle: Area = pi x r sqaured
Those are all the formulas I can recall; however, there might be more.