Answer:
The answer is
[tex]x = \frac{ - 5 + \sqrt{13} }{6} \: \: \: \: or \: \: \: x = \frac{ - 5 - \sqrt{13} }{6} [/tex]Step-by-step explanation:
2x² = - x² - 5x - 1
Rearrange the terms and simplify
That's
2x² + x² + 5x + 1 = 0
3x² + 5x + 1 = 0
Using the quadratic formula solve the equation
That's
[tex]x = \frac{ - b\pm \sqrt{ {b}^{2} - 4ac} }{2a} [/tex]From the question
a = 3 , b = 5 , c = 1
So we have
[tex]x = \frac{ - 5\pm \sqrt{ {5}^{2} - 4(3)(1) }}{2(3)} \\ = \frac{ - 5\pm \sqrt{25 - 12} }{6} \\ = \frac{ - 5\pm \sqrt{13} }{6} [/tex]We have the final answer as
[tex]x = \frac{ - 5 + \sqrt{13} }{6} \: \: \: \: or \: \: \: x = \frac{ - 5 - \sqrt{13} }{6} [/tex]Hope this helps you
Answer: ITS C!!!!!!!
Step-by-step explanation:
Tell whether the equation has one, zero, or infinitely many solutions 8(x – 5) + 36 = 7x – 2
Answer:
jroteejktrsafh❤️♥️❣️❣️♥️♥️☘️
someone help a-a+b; use a=6 and b=4
Answer:
4
If A=6 then you would have to plug that in for a which would become 6-6 which equals 0.Then you would have to plug in 4 for b so you would do 0+4= your answer of 4.
Evaluate - 2y + x(-3)
When x = -5 y = 3
Answer:
27
Step-by-step explanation:
2(6) + -5(-3)
= 12+15
= 27
If y(x) = 2x-5, then f(4) is A. 17 B.5 C.4 D.3
Answer:
i think the answer is 3
Step-by-step explanation:
I NEED HELP PLEASE PLEASE I NEED HELP BADLY HELP ME !!
Answer:
x=(y+b)/m
Step-by-step explanation:
y=mx+b
y+b=mx
(y+b)/m=x
Find the area of the triangle defined by E = (-2, 8), W = (11, 2), and S = (-2, -4). Now find the area of triangle WLS where L is (-2, 0).
Answer:
This question i think google could help you if not more then brainy if u don't get a answer fast enough
Step-by-step explanation:
hope i helped u a little bit i know i didn't have a answer.
Select the Correct Answer Consider the following Equation 12w - 27 = -34 + 14 Which Equation has the same solution as the equation given above?[tex]A. -2w + 21 = -8w + 36\\B. -\frac{5}{6} w + 2 = -34 + 14w\\C. -47 - 10w = -9w -40 - 3w\\D. \frac{9}{7} w = \frac{13}{14} w + 2[/tex]
Multiply (1/6)(-1/2)
Answer:
the answer is -1/12
Answer:
b is your answer
Step-by-step explanation:
This is because 1/6 divided by -1/2 = -1/12
Which of the following numbers is closest to 10?
A. 98
B. 99
C. 102
D. 97
Answer: 99
Step-by-step explanation:
A_P_E_X approved need proof here is an imagine
my friend is having trouble with some algebra 2, pls help !
Answer: 5
Step-by-step explanation:
The function is f(x)= -4x-3:
1) Substitute x with -2 to get: f(-2)= -4(-2)-3
2) Solve using P.E.M.D.A.S to get 8-3=5
Therefore, the answer is 5.
how do you writ 1.660 in scientific notation
Answer:
[tex]1.66 * 10^{0}[/tex]
Step-by-step explanation:
1.660
we would only move the decimal point once.
1.66 * 10^0
10^0 = 1
How do you use 30 60 90 triangles
h(x) = 3x - 4What is h(6)?
5
14
Describe the error in finding the length of AB.
B
cm
1
2.
3
4
5
6
X
AB= |1 + 4.5| = 5.5
O Should have added 5.5 instead of 4.5.
Should have measured to hundredths.
Should have subtracted instead of adding.
O Should have lined up ruler from the right side.
The actual length of the segment is
centimeters.
Answer:
first answer is correct
1.4-28/x
Solve for x
Answer:
20
Step-by-step explanation:
1.4-28/x = 0
bring 1.4 to the right hand side
-28/x = -1.4
bring the x to the right hand side
-28 = -1.4x
switch the positions of -28 and -1.4x
-1.4x = -28
divide -28 by -1.4
x = -28/-1.4
x = 20
write each fraction or mixed number as a decimal. 2/5
Answer:
2 / 5 = 0.4
1 / 5 = 0.2
3 / 4 = 0.75
3 / 5 = 0.6
Tell whether the given value is a solution of the inequality.
15n > -3; n = -2
Answer: no
Step-by-step explanation:
3-2(1+2)?
1 (1+2)
1+2
3
Answer:
your method is wrong, final answer should be -3
Step-by-step explanation:
symbols are used in the order of bracket first, then multiplication and division, then addition and subtraction
i.e.
3 - 2(1 + 2)
= 3 - 2(3)
= 3 - 6
= -3
Answer:
=-3
Step-by-step explanation:
The slope of the line that passes through the point (2, 4) and (3,8)
Answer:
4
Step-by-step explanation:
We can use the slope formula
m = (y2-y1)/(x2-x1)
= ( 8-4)/(3-2)
= 4/1
= 4
With a budget of $250, you have decided to open a snack shop on campus. You can only choose 4 items to sell in your shop (2 salty and 2 sweet). But, you can purchase multiple cases of each snack you choose. You must make sure to purchase at least 500 items. This project will help you to decide which options will be best for your store. You will also explore the potential profit you could make.Remember to refer to the background information given in the instructions.
Step-by-step explanation:
800 is the correct answer
Answer:
800
Step-by-step explanation:
because you would have to get multiple items
evaluate 64 1\2 * 10(-2) as a fraction
Answer:
1/25
Step-by-step explanation:
64^=8
8*1/2=8/2
10^-2=1/100
8/2*1/100
1/25
This is picture for more preference.
Please help me with this, I'm struggling. In the figure, P||Q. Find m<1.
Answer:
y = 58 x= 122
Step-by-step explanation:
y = 180-90-38+6
x=180-y
Answer:
x = 52º
y = 134º
Step-by-step explanation:
x = 90-38
x = 52º
------------------------------
x + y - 6 = 180º
52 + y - 6 = 180º
y = 180 + 6 - 52
y = 134º
what is 8 more than 3 times a number
Answer:
3(x) + 8
Step-by-step explanation:
x being the number
Answer:
3x+8
Step-by-step explanation:
cause x represents the number
Express the fraction
1/3
as a decimal.
Answer:
Step-by-step explanation:
1/3 as a decimal is 0.3333333 repeating
Answer:
0.33
Step-by-step explanation:
Divide 1 by 3 and you'll get a repeating answer of 0.33333333333. When you round it it'll be seen as 0.33
Is 13 a rational number? And why
Answer: A rational number is a number that can be expressed as a fraction where both the numerator and the denominator in the fraction are integers. The denominator in a rational number cannot be zero if you’re working with a number with a long line of different decimals, then your number is irrational! If you’re working with an integer or a number with terminal or repeating decimals (like 1.333333), then your number is rational! and 13 is a rational number since it can be written as a fraction as well like 13/1
Step-by-step explanation:
Solve for x. Make sure to show all your work. 21=3(x+6)
Answer:
1 is correct answer
Step-by-step explanation:
[tex]21 = 3(x + 6) \\ 21 = 3x + 18 \\ 21 - 18 = 3x \\ 3 = 3x \\ x = \frac{3}{3} \\ x = 1[/tex]
hope it helped you:)
The school that Stefan goes to is selling tickets to a spring musical. On the first day of ticket sales the school sold 1 senior citizen ticket and 14 student tickets for a total of $225. The school took in $120 on the second day by selling 7 senior citizen tickets and 1 student ticket. What is the price each of one senior citizen ticket and one student ticket?
x = price of a senior ticket
y = price of a student ticket
First day: x + 14y = $225
Second day: 7x + y = $120
Let's solve this system of equations by substitution
Subtract 14y from both sides on our first equation
First day: x = $225 - 14y
Substitute this value into our second equation for x
7($225 - 14y) + y = $120
Distribute the 7
$1575 - 98y + y = $120
Combine like terms
$1575 - 97y = $120
Subtract $1575 from both sides
-97y = -1455
Divide both sides by -97
y = $15
Plug this value into our first equation
x + 14(15) = $225
Simplify
x + $210 = $225
Subtract $210 from both sides
x = $15
The senior and student tickets cost $15
which expression is a factor of this polynomial x^3+2x^2-9x-18
a(x-2)
b(x+1)
c(x+2)
d(x-6)
please hurry
Answer: (x+2)
Step-by-step explanation:
The factor of the polynomial expression is "(x+2)".
Polynomial expression:[tex]\to x^3+2x^2-9x-18[/tex]
factor=?
[tex]\to x^3+2x^2-9x-18=0\\\\\to x^2(x+2)-9(x-2)=0\\\\\to (x+2)(x^2-9)=0\\\\\to (x+2)(x^2-3^2)=0\\\\\to (x+2)(x-3)(x+3)=0\\\\[/tex]
Therefore, the answer is "[tex](x+2)[/tex]".
Learn more about the factor here:
brainly.com/question/713325
What is the slope of the line that contains the points (-2, 7) and (2, 3)? O A. -4 OB. 4 O C. -1 O D. 1 SUBM
Answer:
- 1
Step-by-step explanation:
[tex]slope = \frac{3 - 7}{2 - ( - 2)} = \frac{ - 4}{2 + 2} = - \frac{4}{4} = - 1 \\ [/tex]
The slope of the line that contains the points (-2, 7) and (2, 3) is -1.
What is Slope?A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the
change in y coordinate with respect to the change in x coordinate as,
m = Δy/Δx where, m is the slope
We have the points (-2, 7) and (2, 3).
So, the slope of line
= (3 -7)/ (2- (-2))
= (-4) / (4)
= -1
So, the slope of line is -1.
Learn more about Slope here:
https://brainly.com/question/3605446
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For each of the last three years, your landscaping business has made a profit of $1,200; $2,100; and $3,400. How much total profit did your business make in the last 3 years?
O $5,670
O $6,070
O $6,700
O $7,600
O $7,650
Answer:
The answer would be $6,700
