I need help with #8. I need to use the quadratic formula. I have a calculator that is programmed for the quadratic formula so all I need are the a, b, and c values. for this problem, I am required to show any equations used to solve for the variable. hope you can help me, thanks!!
Answers
Answer:
x = 14
Step-by-step explanation:
Extend line AB so that it intersects ray CE at point G. Then angles BGC and BAD are "alternate interior angles", hence congruent.
The angle at B is exterior to triangle BCG, and is equal to the sum of the interior angles at C and G:
138 = (376 -23x) +(x^2 -8x)
Subtracting 138 and collecting terms we have ...
x^2 -31x +238 = 0
For your calculator, a=1, b=-31, c=238.
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Additional comment
You will find that the solutions to this are x = {14, 17}. You will also find that angle BCE will have corresponding values of 54° and -15°. That is, the solution x=17 is "extraneous." It is a solution to the equation, but not to the problem.
For x=14, the marked angles are A = 84°, C = 54°.
Related Questions
From definition ,find derivatives of [tex]a^{x}[/tex]
Answers
Answer:
Step-by-step explanation:
d /d x [ a ^x ]
= d/ d x [ e ^ln ( a ) x ]
= e ^ln ( a ) x ⋅ d /d x [ ln ( a ) x ]
= e ^ln ( a ) x ⋅ ln ( a ) ⋅ d /d x [ x]
= e ^ln (a ) x ln ( a ) ⋅ 1
= ln ( a ) e ^ln ( a ) x
Rewrite/simplify:
= a ^x ln ( a )
5x4=20 is a true open or false statement
will mark brainliest
Answers
Answer:
this is true, just count by five four times
Step-by-step explanation:
.
How is 700,000,000 expressed in standard scientific notation?
7.0 × 10^-8
7.0 × 10^+8
IS IT POSITIVE 8 OR NEGATIVE 8?
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Positive.
Hope this helps.
Can someone please help me!
Answers
Which it the equation of the line that passes through the point (2,-1) and has a slope of -3?
Answers
Answer:
y=-3x-1
Step-by-step explanation:
slope formula is y=mx+b
so, ya just plug in. slope is -3 and b (y-value) is -1
8. 2|x - 7| =-4
What is the solution to this absolute value equation
Answers
The answer is there is no solution.
Answer:
No solutions
Step-by-step explanation:
2 | x - 7 | = -4 We need to isolate the absolute value, so in order to do that we need to divide 2 from both sides of the equation.
| x - 7 | = -2
Absolute values can not be equal to a negative number.
Therefore, your answer is no solutions.
Based on the diagram below, find the value of v, u and w: *(round to one decimal place)
Answers
Answer:
u=27 v=9.5 w=28.5
Step-by-step explanation:
LOOK AT THE IMAGE ABOVE to solve the problems. Please only answer if you KNOW.
Show full steps please.
It’s due today!
Answers
Answer:
The lines are parallel
Step-by-step explanation:
The slopes are the same
The equations are both written in slope intercept form
y = mx+b where m is the slope and b is the y intercept
-3/5 is the slope in both equations
When the slopes are the same the equations are parallel
They have different y intercepts, so they are different lines ( if they have the same y intercept and same slope, they would be the same line)
what's
[tex]4 \times4 \times 4[/tex]
what's 4 * 4
Answers
Answer:
4×4×4 = 64
4×4 = 16
Explanation : 4×4×4 could also be 4 to the third power .
Answer: The answer to this basic math question with the 2 given following basic math expressions are the following answers that have been provided to you:
[tex]4 * 4 * 4 = 64.[/tex] [tex]4 * 4 = 16.[/tex]Step-by-step explanation: Mmmm, that was super extremely easy, so anyway, here is a basic step in order to evaluate the 2 given following basic math expressions:
[tex]4 * 4 * 4[/tex] could also be 4 to the third power. [tex]4 * 4[/tex] could also be 4 to the second power.It means it's the exponent power.
I hope that my full given answer with my full given step-by-step explanation is very helpful to your own basic math question with the 2 given following basic math expressions, please mark me as Brainliest, take care, always be safe, and have a great holiday winter break, Merry Christmas and a happy new year! :D
Sincerely,
Jason Ta,
The Ambitious of The Brainly And The Role of The TDSB And WHCI Student of The High School.
Given the equation StartFraction 2 x + 2 Over y EndFraction = 4 w + 2 what is the value of x?
x = y w + y minus 1
x = 2 y w + y minus 1
x = 2 y w + y minus 2
x = 4 y w + 2 y minus 2
Answers
Answer:
i think its b
Step-by-step explanation:
i did the math rq and i think i did the problem a week ago
i hope i read ur question right
The value of x is 2yw + y - 1
What is equation?Equation is the defined as mathematical statements that have a minimum of two terms containing variables or numbers is equal.
What is the function?The function is defined as mathematics expression defines a relationship between one variable and another variable. When we say that a variable quantity y is a function of a variable quantity x, we indicate that y depends on x and that value of x determines what value of y will be. This relationship can be expressed as follows: y = f (x)
Given the equation as:
(2x + 2)/y = 4w + 2
To determine the value of x
Multiply by y both sides
y × (2x + 2)/y = (4w + 2) × y
2x + 2 = 4wy + 2y
Subtract 2 from both sides
2x + 2 - 2 = 4wy + 2y - 2
2x = 4wy + 2y - 2
Divide by 2 both sides
x = (4wy + 2y - 2)/2
x = 4wy/2 + 2y/2 - 2/2
x = 2yw + y - 1
Hence, the value of x is 2yw + y - 1.
Learn more about equation here :
brainly.com/question/10413253
#SPJ5
simplify –k + 3(4k –1) + 2 and please do a step by step
Answers
distribute the 3
-k+12k-3+3
combine like terms
11k-3+2
combine like terms
11k-1
Suppose that 19 inches of wire costs 76 cents. At the same rate, how many inches of wire can be bought for 48 cents?
Answers
Answer: 12 inches
Step-by-step explanation:
Because 19 inches costs 76 cents. If you divide 19/19 you get 1 inch. Also divide 76/19 and you get 4 cents. Now it’s asking how many inches could be bought for 48 cents. So 48/4 equals to 12 and that’s your answer. You see 19x4=76. And 12x4= 48. I hope that helped you.
Can someone help me with my math? Please, I am begging you! It's due today and I'm confused.
A line goes through the points (0,7) and (1,9). Write the following equation forms:
Point-Slope Form (using the point (1,9):
Slope-Intercept Form:
Standard Form:
Answers
Answer:
[tex]Point-Slope \: Form \: (using \: the \: point \: (1,9) \to \boxed{y-9=2x- 2}\\
Slope-Intercept \: Form \to \boxed{y = 2x + 7}\\
Standard \: Form\to\boxed{ 2x - y = - 7}[/tex]
Step-by-step explanation:
[tex]the \: equation \: is \: gotten \: by \: applying : \ \\ (m) = \frac{ y_{2} -y_{1} }{x_{2} - x_{1}} .............(the \: slope) \\ y-y_{1} =m (x- x_{1})..............(point \: slope \: form) \\ y = mx + c..............................(Slope-Intercept \: Form) \\ \alpha x + \beta y = c...................(Standard \: Form) \\ \\ part \: a. \to \\ Point-Slope \: Form \: (using \: the \: point (1, \: 9)): \\ y-y_{1}=m (x- x_{1}) \\ y-9=m (x- 1) \\ but \: m = \frac{ y_{2} -y_{1} }{x_{2} - x_{1}} = \frac{9 - 7}{1 - 0} \\ m = 2. \\ therefore \: the \: required \: equation \: is : \\ \boxed{y-9=2x- 2}. \\ \\ part \: b. \to \\ Slope-Intercept \: Form: \\ since \: m \: is \: already \: given \: then \: we \: apply : \\ y = m(x) + c \\ c = y - m(x) \\ c = 9 - 2(1) \\ c = 7. \\ therefore \: the \: required \: equation \: is : \\ \boxed{y = 2x + 7}. \\ \\ part \: c. \\Standard \: Form: \\ the \: standard \: form \: is \: given \: by : \\ \alpha x + \beta y = c \\ \boxed{ 2x - y = - 7} \\ is \: the \: required \: equation.[/tex]
♨Rage♨
whats the answer to 12−6x>24.
Answers
Step-by-step explanation:
12−6x>24
subtract both side by 12
12-12-6x>24-12
-6x>12
divide both side by -6
x>-2
x<-2
GIVING BRAINLIEST AND MORE
Answers
Quotient is the result of dividing two numbers
Inverse operations is the opposite operations that undo one another
Dividend is the number being divided
Divisor is the number of parts that the dividend is being dividend into.
Answer:
# 1: Inverse Operations
# 2: Dividend
# 3: Divisor
# 4: Quotient
Latitude and longitude describe locations on the Earth with respect to the equator and prime meridian. The table shows the latitude and daily high temperatures on the first day of spring for different locations with the same longitude.
Answers
Answer:
B) The temperature decreases by about 1.7° for each 1 degree increase north in latitude.
Step-by-step explanation:
Answer: B. Decreases by about 1.7 degrees every 1-degree latitude.
Select all of the transformations that always maintain a shape's congruency.
A) A reflection
B) Adilation
C) A reflection and then a dilation
D) A rotation then a translation
E) A translation then a reflection
Answers
I NEED HELP ASAP IM TIMED... picture connected!
Which is the equation of the function?
A.) f(x) = 3|x| + 1
B.) f(x) = 3|x – 1|
C.) f(x) = 1/3|x| + 1
D.) f(x) = 1/3 |x– 1|
Answers
Answer:
d
Step-by-step explanation:
·A nutritionist recommends that an adult male consume 55 grams of per day. It is acceptable for the fat intake to differ from this amount by at most 25 grams. Write and solve an absolute-value inequality to find the range of fat intake that is acceptable. Graph the solutions.
Answers
It helps
Lucy is saving money to buy a game. The game costs $21, and so far she has saved one-third of this cost. How much money has Lucy saved?
Answers
Answer:
$7
Step-by-step explanation:
just did 21 divided by three since it says she has saved one third of the $21.
Step-by-step explanation:
one third of $21 is $7 this is your answer
raise d to the 6th power
Answers
Answer:
[tex]d^{6}[/tex]
Step-by-step explanation:
hope it helps
A passenger rode the subway 2 blocks west and then 10 blocks south. If all the blocks are the same length, what is the value of the slope of the line from where the passenger began to where he finished?
Answers
Answer: 5
Step-by-step explanation:10/2 = 5
Answer:
the answer is: 5
Step-by-step explanation:
did the quiz
Algebra 1. 5(x + 6) – 2x = 3(x + 10)
Answers
Answer:
your answer is 3x+30=3x+30 so they are the same
Step-by-step explanation:
Segment addition, how do u solve it? Step by step.
Answers
Answer:
x=7 DO=25 OG=35
Step-by-step explanation:
4x-3+2x+21=60 4(7)-3 2(7)+21
4x+2x -3+21 28-3=25 14+21=35
6x+18=60 DO=25 OG=35
60-18=42
6x=42
42/6=7
x=7
What is the slope of the line that passes through the points (1,-1) (-2,8)
Answers
Answer:
m=-3
Step-by-step explanation:
i need help :) !!!!!
Answers
Answer:
hey um how do u put a pic on it I mean I no but it wont let me ask a q with a pic and I'm afraid even a q
Answer:
35 maybe
Step-by-step explanation:
2(x+6)=3(x+1)
Solving equations with variables on both sides. ;)
Answers
Step-by-step explanation:
2(x+6)=3(x+1)
2x+12=3x+3
collect the like terms
2x + 3x = 3+12
x=15/5=3
or
2x-3x = 3-12
= -9
i need help ASAP and just answer
Answers
Answer:
LOM= 66 and MON= 24
Step-by-step explanation:
I think
Answer:
<LOM=66,<MON=24
Step-by-step explanation:
(2x+46)+(3x-6)=90
2x+3x+46-6=90
5x+40=90
5x=90
x=10
2x+46=2*10+46=66
8y- 10 =
What is y ?
Answers
+10 +10
8y = 10
/8 /8
Y= 1.25
HELP PLS, WILL GIVE BRAINLIEST Complete the equation so that it has infinitely many solutions.
1/3(3−z)
Answers
Answer:
1/3(3 - z) = 1 - 1/3zStep-by-step explanation:
Given expression1/3(3 - z)To findComplete the equation to have infinitely many solutionsSolutionAn equation has infinitely many solutions if the variable cancels and constants are same on left and right sides of the equation
Let the right side be an expression m, then
1/3(3 - z) = m1/3*3 - 1/3z = m1 - 1/3z = mSo we need same expression on the right side, the equation is:
1/3(3 - z) = 1 - 1/3z