Please help, Which ordered pairs in the form (x, y) are solutions to the equation 3x−4y=21?
Select each correct answer.
(−1, −6)
(−3, 3)
(7, 0)
(11, 3)
$2.98 for 15.5 ounces of oreos
Answer:
$46.19
Step-by-step explanation:
WHAT IS 389.649 ROUNDED TO THE NEAREST TENTH
Answer:
389.6
Step-by-step explanation:
389.649 rounded to the nearest tenth is 389.6
Answer:400.000
Step-by-step explanation:ezez
Which statements are true regarding the diagram?
Answer:
the true statement is
A it is true
B it is false
C it is true
D it is true
E it is false
Step-by-step explanation:
if you didn't understand express in comment and good luck
The options 1, 3 and 4 are true statements.
What are complementary angles?Two angles are said to be complementary angles if they add up to 90 degrees. In other words, when complementary angles are put together, they form a right angle (90 degrees).
From the diagram,
1) ∠GNH+∠HNJ=90°
So, ∠GNH and ∠HNJ are complementary angles
2) ∠JNK+∠KNL≠180°
∠JNK and ∠KNL are not supplementary angles
3) ∠KNL+∠LNM=90°
So, ∠GNH and ∠HNJ are complementary angles
4) m∠HNK+m∠KNL=180°
∠HNK and ∠KNL are supplementary angles
5) m∠MNG+m∠GNH=90°
So, ∠MNG and ∠GNH are not complementary angles
Therefore, options 1, 3 and 4 are correct.
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I need help on this one can some help me
Answer:
the answer is yes I think
Step-by-step explanation:
I WILL GIVE BRAINIEST IF CORRECT
Tucker measured the auditorium and made a scale drawing. The scale he used was 1 inch : 3 feet. The stage is 57 feet long in real life. How long is the stage in the drawing?
Answer:
19 inch
Step-by-step explanation:
57÷3=19
19 inches as the ratio is 1:3
this is algebra 1 9th grade
Find the perimeter of a rectangle with Area = x^2 + 8x + 12
Answer:
(x+6)*(x+2)
step-by-step explanation:
Fun Station is having a sale. Video games are 20% off, board games are 50% off, and basketballs are $12. Let v represent the original price of a video game. Let b represent the original price of a board game. Write an equation to find the total sale price of 2 video games, 3 board games, and 1 basketball.
Answer:
y=1.6v+1.5b+12Step-by-step explanation:
Let v represent the original price of a video game.
Let b represent the original price of a board game.
let y be the total
y=v+b+12
Video games are 20% = 100-20= 80%= 0.8v
board games are 50% =100-50=50%= 0.5b
the total is now
y=0.8v+0.5b+12
the expression for the total sale price of 2 video games, 3 board games, and 1 basketball
y=2(0.8v)+3(0.5b)+12
y=1.6v+1.5b+12
Match each polynomial to its factored form.
x^2+8x +16
x^3-64
x^2-16
(x-4)(x^2+4x+16)
(x+4)^2
(x-4)(x+4)
Answer:
x^2+8x +16 >> (x+4)^2
x^3-64 >> (x-4)(x^2+4x+16)
x^2-16 >> (x-4)(x+4)
Step-by-step explanation:
Each polynomial is matched to its factored form. These are the correct answers. I did this on EDGE!
Polynomial is an expression that consists of indeterminates(variable) and coefficients.
What are polynomials?
Polynomial is an expression that consists of indeterminates(variable) and coefficients, it involves mathematical operations such as addition, subtraction, multiplication, etc, and non-negative integer exponentials.
To know which polynomial to match, solve the factors.
A.) (x-4)(x²+4x+16)
[tex](x-4)(x^2+4x+16)\\\\=x(x^2+4x+16)-4(x^2+4x+16)\\\\= x^3 + 4x^2 + 16x - 4x^2-16x-64\\\\=x^3 -64[/tex]
Hence, (x-4)(x²+4x+16) will match x³-64.
B.) (x+4)²
[tex](x+4)^2\\\\= x^2+8x+16\\[/tex]
Hence, (x+4)² will match x²+8x+16.
C.) (x-4)(x+4)
[tex](x-4)(x+4)\\\\ = x^2-16[/tex]
Hence, (x-4)(x+4) will match x²-16.
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Pleaseeeee helpppppp!!!!!
Answer: A, D, and E
Step-by-step explanation: you can solve them just by adding with no additional steps
how do you get that answer
identify the slope, x intercept, and the y intercept of the following:
5x+12y=24
Answer:
slope = -5/12x
x intercept = 24/5
Step-by-step explanation:
Answer: 0,-2
Step-by-step explanation:
When the expression x^2 + bx - 24 is factored completely, the difference of the factors is 11. Find both factors if it is known that b is negative.
write the steps on the paper pleaseeee
i need it asap
Answer:
The two factors are (x + 3) and (x - 8)
Step-by-step explanation:
The given function is x² + b·x - 24
The difference between the factors = 11
The sign of coefficient b = Negative
Therefore, we have;
The factors as (x - c) and (x + d)
-b = d - c...(1)
d × (-c) = -24...(2)
(x + d) - (x - c) = 11
Which gives;
x + d - x + c = 11
∴ d + c = 11...(3)
From equation (3), we have;
d = -24(-c) = 24/c
d = 24/c
Substituting the value of d in equation (3) gives;
d + c = 24/c + c = 11
24/c + c = 11
∴ c² + 24 = 11·c
c² + 24 - 11·c = 0
c² - 11·c + 24 = 0
(c - 8)·(c - 3) = 0
c = 8 or 3
From d + c = 11, we have, d = 3 or 8
Given that -b = d - c, therefore c > d and c = 8, d = 3
Therefore, the two factors are (x - 8) and (x + 3).
If you get this please help me
Dude I am so sorry but I'm just as confused as you are-
Answer:
36 in.
Step-by-step explanation:
the perimeter of the square is 4s and the perimeter of the triangle is 3(s+3).
since the perimeters are the same you can set them equal to each other and solve.
you should get s=9
substitute 9 into the square perimeter equation to get 36 in.
What is the distance between -13 and -4 on a number line?
A man has two more nickels than dimes, and has $1.15 in total. How many coins of each kind does he have?
Answer:
9 nickels and 7 dimes
Step-by-step explanation:
Found the answer off some other dude
what y = mx + b for m?
Answer:
Answer:
y - mx = b ( second choice )
Step-by-step explanation:
given y = mx + b
Isolate b by subtracting mx from both sides
y - mx = b
Step-by-step explanation:
What's the equation of (-4,-6) and (-2,-7)
Answer:
y=-1/2x-8
Step-by-step explanation:
Use the formula y2-y1/x2-x1
-7 - (-6)= -1
-2 - (-4) = 2
-1/2 is the slope
Plug it in
-6=-4(-1/2)+b
-6=2+b
b=-8
Write the equation, in slope intercept form, for the line shown in the graph below.
Answer:
y = -2x + 3
Step-by-step explanation:
The slope-intercept form is y = mx + b
m is the slope
b is the y-intercept
those are the only things you need to find when doing slop-intercept form.
Slope: Find 2 points on the line
ex. (0,3) ; (3, -3) I just chose ones that were not decimals
To find slope you need to do this : y - y / x - x
you can chose any order, as long as the pairs are together, either first or second.
3 - (-3) / 0 - 3 is one way
6 / -3 is the slope
-3 - 3 / 3 - 0 is another
-6 / 3 is the slope
They are essentially the same.
you can simplify them to get -2
Y-Intercept:
this is really easy, just find where the line touches the y-axis
y-intercept = (0,3)
We have: slope = -2
y-intercept = 3
Now, replace the m and b in the equation-
y = -2x + 3
hope this helps :)
Rudy took a test and earned a 92%. Camilo earned 88% on the same test. If Rudy answered 46 questions correctly, how many more questions did he answer correctly than Camilo?
Answer:
Rudy answered 2 questions more than Camilo.
Step-by-step explanation:
What transformation is represented by the rule (x, y) —>(-x, y)?
Answer:
This would result in a 90º rotation
Step-by-step explanation:
This is due to the values of x being negative and changes it to a 90º rotation.
What is the unit rate if the rate is 30 laps for 10 minutes
Answer:
1 lap per minute
Step-by-step explanation:
"Glenn has 4 less than twice as many hats as Mia."
1. 2h - 4
2. 2h <4
3. h² – 4
4. 4 - 2h
A girl's club held a fundraiser last year and raised $600 for the local soup kitchen. This year they raised $960. What is the percent change in the total amount raised by the girl's club? The percent change is 0.38%. The percent change is 0.6%. The percent change is 38%. The percent change is 60%.
Answer:
The percent change is 60%.
Step-by-step explanation:
given that the old amount is
$600
also the new amount is $960
the change is 960-600= $360
therefore the expression for percent change is given as
%change= new-old/old
%change= final-initial/initial
%change= 960-360/360
%change= 360/600
%change= 0.6
0.6*100
=60%
The percent change is 60%.
Answer:
D
Step-by-step explanation:
Please help me!!!!!!!!
Answer:
WITH WHAT? IM WILLING TO HELP
Step-by-step explanation:
What is the slope and the perpendicular slope on the points given?
Answer:
The slopes are:
blue: 4/3 = 1⅓
green: -4/3 = -1⅓
I used rise over run to work these out
Answer:
- [tex]\frac{4}{3}[/tex] and [tex]\frac{3}{4}[/tex]
Step-by-step explanation:
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2-y_{1} } }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 8, 8) and (x₂, y₂ ) = (4, - 8) ← 2 points on green line
m = [tex]\frac{-8-8}{4+8}[/tex] = [tex]\frac{-16}{12}[/tex] = - [tex]\frac{4}{3}[/tex]
Repeat with (x₁, y₁ ) = (0, - 1) and (x₂, y₂ ) = (4, 2) ← 2 points on the blue line
m = [tex]\frac{2+1}{4-0}[/tex] = [tex]\frac{3}{4}[/tex]
Since the product of the slopes = - [tex]\frac{4}{3}[/tex] × [tex]\frac{3}{4}[/tex] = - 1
Then the lines are perpendicular
SOMEONE PLZ HELP WILL GIVE BRAINLIEST
Answer:
Pre-Algebra, Algebra I, Algebra II, Geometry: homework help by free math tutors, solvers, lessons.Each section has solvers (calculators), lessons, and a place where you can submit your problem to our free math tutors. To ask a question, go to a section to the right and select "Ask Free Tutors".Most sections have archives with hundreds of problems solved by the tutors.
Step-by-step explanation:
My teacher didn't go over this and we have to show work
Find three consecutive even integers such that the sum of twice the smallest number and three times the largest is 42.
Answer:
The three consecutive even integers are 6, 8, 10
Step-by-step explanation:
The difference between each two consecutive even numbers is 2Assume that the first number is x, then the other two numbers are x + 2 and x + 4∵ The three consecutive even numbers are x, x + 2, x + 4
∵ The smallest number is x
∴ Twice the smallest number = 2x ⇒ (1)
∵ The largest number is x + 4
∴ Three times the largest number = 3(x + 4) = 3(x) + 3(4)
∴ Three times the largest number = 3x + 12 ⇒ (2)
∵ The sum of twice the smallest number and three times the largest is 42
→ Add (1), (2) and equate the sum by 42
∴ 2x + 3x + 12 = 42
→ Add the like terms
∴ 5x + 12 = 42
→ Subtract 12 from both sides
∴ 5x + 12 - 12 = 42 - 12
∴ 5x = 30
→ Divide both sides by 5
∵ [tex]\frac{5x}{5}=\frac{30}{5}[/tex]
∴ x = 6
∴ The smallest integer is 6
∴ The middle integer is 6 + 2 = 8
∴ The largest integer is 6 + 4 = 10
∴ The three consecutive even integers are 6, 8, 10
help i’ll give u brainlest and lots of points
Answer: try answer c
Step-by-step explanation:
Answer:
I think the answer is d
Step-by-step explanation:
[tex] \frac{3 - ( -1)}{ - 4 - 2} = \frac{4}{ - 6} [/tex]
simplify it and the final answer will be -2/3
