Answer:
8x-(-4x-6)=42
8x+4x+6=42
12x=42-6
12x=36
x=36/12
x=3
substitute in an equation of your choice
8(3)-y=42
24-y=42
24-42=y
-18=y
Step-by-step explanation:
Answer:
x= 4 y= -10
Step-by-step explanation:
8x - y = 42
-4x - 6 = y
rearrange -4x - 6 =y to -4x -y = 6
8x - y = 42
-4x - y = 6
4x = 48
48/4 = 12
x=4
subsitute x with 4 adn solve for y = -22
y= -10
Which could be an equation of the trend line shown in the graph?
a. y = 6x + 12
b. y = 8x + 15
c. y = 6x + 6
d. y = 8x + 8
(Hint: it’s not c or a)
Answer:
its d
Step-by-step explanation:
what does it mean when you cancel out the variables and you have a solution like 5=5?
Answer:
Then you have infinite solutions
Step-by-step explanation:
if no solution, you would get sum lyke 4 = 5
if infinite soltution you would get sum lyke 3 = 3
if you have one solution, expect to get sum lyke x = 5
Evaluate the expression. If necessary, round to the nearest hundredth.
PLEASE HELP ASAP!!
Answer: I would say that the one which you have selected is correct.
Step-by-step explanation:
I really do hope that I am right and this helps you!
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what are the answers to these?!?!?!?>>>>>
2(y−3)=4 (solve for "y")
2x+5y=10 (solve for "x")
6x+3y=4y+11 (solve for "y")
3(2x+4)=2+6x+10 (solve for "x")
y=−3x+6 (solve for "x")
m=8−2(p−m) (solve for "p")
1) y=5
2) x=(10-5y)/2
3) y=(11-6x)/-3
4) x=0
5) x=(-y+6)/3
6) p=(8+m)/2
A farmer wants to construct a rectangular pigpen so only 3 sides of the pen will need to be fenced. If the farmer has 400 ft of fence, whats the maximum area he can enclose?
The dimensions of the rectangular pigpen with the largest possible area are 50 ft×25 ft.
The area and perimeter of a rectangle in the study of differential calculus, specifically in optimization problems are functions of two variables that depending on what is requested in these problems can be objective functions or link functions between the variables.
We use what we know about the perimeter of the rectangle to find a condition equation that expresses the length a in terms of the width b.
P(a, b)=a+2b [Perimeter of the fence of the rectangular pigpen]
p(a, b)=2a+3b [Substitute P(a, b)=100]
100=a+2b
a=100-2b
We must find the largest area. Using the condition equation, find the area as a function of the variable b.
A(a, b)=ab [total area of the rectangular pigpen]
A(a, b)=(100-2b)b [Replace a=100-2b]
A(a, b) = 100b-2b²
Objective function Domain
A(a, b) = 100b-2b²
D={b∈R : b>0} [Domain of the objective function]
To find the extremes of the function we have to look for the critical points of the function and apply the second derivative test.
A(a, b) = 100b-2b²
A'(a, b) =100-4b [First derivative of the objective function]
A'(b)=0
100-4b=0
4b=100
b=25 [Critical point]
Applying sufficient condition for extremes
A'(b)=100-4b [First derivative of the objective function]
A''(b)=-4 [Second derivative of the objective function]
A''(b)=-4 [A''(b)<0∀b∈D]
b=25 [Maximum point of the objective function]
Calculate the dimension of the rectangular pigpen
b=25 [Width of the rectangular pigpen]
a=100-2(25)=50 [Length of the rectangular pigpen]
Therefore, the dimensions of the rectangular pigpen with the largest possible area are 50 ft×25 ft.
To learn more about the area of a rectangle visit:
https://brainly.com/question/20693059.
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which is the graph of the linear equation Y is greater than or equal to negative X -3
Answer:
yea
Step-by-step explanation:
Find the slope of each line graphed below.
Answer:
please please answer answer
Answer:
um a is the blue and d is the one that is going up and down and bis the one that goes side to side
Step-by-step explanation:
if bob has 900 apples, and then his fat self ate 800, what is he left with?
PLZ HELP IM SO DESPERATE
Answer:
100 and even fater
Step-by-step explanation:
Answer:
100
Step-by-step explanation:ust do 900-800 dont be desperate
WILL GIVE BRAINLIEST!
Translate the following verbal expression into a variable expression.
Eight divided by the sum of a number and three.
Answer:
8÷(x+3)
Step-by-step explanation:
it doesnt specify what number you add with 3 so you substitute it with a variable such as x.
The sum is adding so x +3 and then divide by 8
Jackie is taking a week-long football class. The first day, she gains 6 yards on her only possession of the football. On the second day, she quarterbacks for 3 plays and gains 6 yards on each play. What is the total number of yards Jackie gained?
Answer:
24
Step-by-step explanation:
6 x 3 = 18 + 6= 24
It says find the measure of each angle indicated
Answer:
110 = x
Step-by-step explanation:
the ? and 40º have to sum to 150º because angle d is an exterior angle
Proving lines parallel determine the value of X
when both l and m are parallel then
(4x+7) = (6x-63)
-2x = -70
-x = -70/2
-x = -35
x = 35
hope it helps and ur day will full of happiness
please help me!!! PLEASE!!!!!!!
The system of equations (picture shown) has (blank)
blank options (shown in pictiure)
1. no solution
2. infinitely many solutions
3. one solution
Answer:
no way
Step-by-step explanation:
addison rae? is that u?
help due in 10 min ????
Answer:
7 x 7 x 7
Step-by-step explanation:
When raising a number or expression to an exponent, you are really just multiplying the number or expression by itself.
That means 7³ is 7 multiplied by itself 3 times.
7 x 7 x 7
Hope this helps!
Your friend has x pennies. You have 29 pennies. You and friend have a total of 40 pennies. Write an equation that you can use to find x
Answer:
40 = 29 + x
Step-by-step explanation:
hope this helped, sorry if wrong
just answer the multiple-choice pls
Answer:
its B
Step-by-step explanation:
John leaves his home. He travels 5 blocks south and three blocks west. As the crow flies, how far is John from his home?
Answer:
5.83 blocks away from his home
Step-by-step explanation:
If he travels 5 blocks south and 3 blocks west, the distance from his house considered along with the distances travelled gives a right angled triangle whose opposite side and adjacent sides are the distances travelled north and west.
The distance from his house after moving 3 blocks west is the hypotenuse side. As such, the distance may be computed using Pythagoras' theorem. Let the distance from his house be G
G^2 = 5^2 + 3^2
G^2 = 25 + 9
= 34
G = √34
=5.83
John is 5.83 blocks away from his home
please help and show work
Step-by-step explanation:
sides opposite to equal angles are equal in length :
angle45 = angle 45
r = s
by Pythagoras theorem :
r² + s² = (9√2 )²
s²+s²= 9 × 9 × 2
2s²= 9× 9×2
s²= 9 × 9
s= √9× 9
s = 9
r= s = 9 units .
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16 X plus 3X squared minus 2X -19+ 1X squared
765 divided by 11 is???
Answer:
mixed number 69/6/11
decimal form:69.54
exact form 765/11
research:69.5454545455
Step-by-step explanation:
Hope this helped!
Answer:
the answer is 69.5454545455
Step-by-step explanation:
-3+4x-10=1/2x
Please HELP
Answer:
x=26/7
Step-by-step explanation:
What's the answer to 6 + 5 + (26 - 19) - exponent 6 over 5
Answer:
-7758
Step-by-step explanation:
List the steps to calculate the slope/rate of change using a calculator.
What is the slope of the line?
A.) 1
B.) 1/2
C.) -2
D.) 2
Answer:
D
Step-by-step explanation:
−3x − 8y = 20 −5x + y = 19 solved by substitution
Delete as this is the wrong answer. Made a typo in the answer.
Answer:
x = [tex]\frac{-212}{3}[/tex]
y = 24
Step-by-step explanation:
-3x - 8y = 20 .... (1)
-5x + y = 19 .... (2)
What we can do is take the (2) equation
-5x + y = 19
and solve for y by adding 5x to both sides
y = 24
now that we have y we substitute it in for y in equation (1)
-3x - 8(24) = 20
-3x - 192 = 20
we want to solve for x so we need to get its self.
add 192 to both sides
-3x = 212
now we divide both sides by -3. It's going to be a fraction.
x = [tex]\frac{-212}{3}[/tex]
Answer:
x=-4
y=-1
Step-by-step explanation:
-3x-8y=20
-5x+y=19
rewrite for y:
y=19+5x
substitute y
-3x-8(19+5x)=20
-3x-152-40x=20
-3x-152-40x+152=20+152
-43x=172
-43x/-43=172/-43
x=-4
substitute x
-5(-4)+y=19
20+y=19
y=-1
check:
-3(-4)-8(-1)=20
12+8=20
-5(-4)+-1=19
20-1=19
Find an exponential function that passes through (2, 16) and (6, 256) with an asymptote
y=0.
Answer:she's a freshmen leave her alone anime girl before senpai comes for ya >_<
Step-by-step explanation:
HELP PLZ DUE IN 15 MIN!
Given: ΔFGH ≅ ΔWAX. Complete the following statements.
Segment GH ≅ Segment ??
∠W ≅ ∠ ??
Answer:
Step-by-step explanation:
GH =~ AX
<W =~ <F
Answer:
Given:
ΔFGH ≅ ΔWAXCorresponding sides or angles are congruent
Segment GH ≅ Segment AX∠W ≅ ∠ FCarson's bill for dinner at a restaurant was $48. He left a 15% tip. What was the total cost of his dinner, including tip?
Answer: $55.20
Step-by-step explanation:
If $48 = 100%, 15% + bill cost = 115%
115% = 1.15
Multiply 48 × 1.15 = $55.20
Note- It would mean the world to me if you could mark me as brainliest!
Answer:
$55.20
Step-by-step explanation:
48+%15=55.20 based on how much you're bill os affects how much the tip is worth
Write yes or no in the space provided below:
Can the sides of a triangle have lengths 2, 3, and 5?
Answer:
No
Step-by-step explanation:
Triangle Inequality Theorem. The sum of the lengths of any two sides of a triangle is greater than the length of the third side.