A. square root property
[tex]3x^2-192=0\\x^2-66=0\\x^2=66\\x= -\sqrt{66} or \sqrt{66}[/tex]
it has one value with x which is x^2 and it cn be easily solved without having to factorise, quadratic formula cant be used as it need ax^2+bx+c=0 format
B. factorising
[tex]x^2-x-6=0\\x^2+2x-3x-6=0\\(x+2)(x-3)=0\\x+2=0 and x-3=0\\x= -2 \\x= 3[/tex]
i just felt like this was easier to factorise than the other 2 options left
C. Completing the square
[tex]x^2-6x-7=0\\(x-3)^2=0\\x= -1\\x= 7[/tex]
same reason personal preference
D- Quadratic
[tex]x^2-17x-7=0\\x=\frac{-(-17)+\sqrt{(-17)^2-4(1)(-7)} }{2(1)} \\x=\frac{-(-17)-\sqrt{(-17)^2-4(1)(-7)} }{2(1)}\\x=17.4\\x=-0.402[/tex]
the 17 kinda threw me off and i didnt wanna get on factorising or doing completing the square so quadratic formal
Alexis, Bart, Chuck, and Dariah all called in to a radio show to get free tickets to a concert. List all the possible
orders in which their calls could have been received.
Answer:
heh u have to write a lot
Step-by-step explanation:
Question 5 (4 points)
(04.05)
Which description best describes the graph? (4 points)
A graph is shown. The line begins at the origin and moves in a downward curve through the points 1 comma -1, 2 comma -3, and so on
a
Linear increasing
b
Linear decreasing
c
Nonlinear increasing
d
Nonlinear decreasing
Answer:
The answer is D
Step-by-step explanation:
Last week, Mahmoud drove 109 kilometers. This week, he drove n kilometers. Using n, write an expression for the total number of kilometers he drove in the
two weeks
I'm genuinely confused
Answer:
Basically what you wanna do is find all points on the x axis since it is at 0 y
So the answer is -2 1 or 3 only
3600 divided by 1760?
Answer:
[tex]3600 \div 1760 \\ \\ = 2.04545[/tex]
The sum of 1/4 and three times a number is equal to 2/3 subtracted from four times the number. Find the number.
Answer:
5
Step-by-step explanation:
anyone please help me
[tex]\\ \sf\longmapsto x^2-4x-5=0[/tex]
Use midterm splitation[tex]\\ \sf\longmapsto x^2-5x+x-5=0[/tex]
[tex]\\ \sf\longmapsto x(x-5)+1(x-5)=0[/tex]
[tex]\\ \sf\longmapsto (x-5)(x+1)=0[/tex]
[tex]\\ \sf\longmapsto x=5\:or\:x=-1[/tex]
Solution is (-1,0) and (5,0)
Graph attached.
Spare way:-
Use quadratic formula .
[tex]\\ \sf\longmapsto x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]
[tex]\\ \sf\longmapsto x=\dfrac{-(-4)\pm\sqrt{(-4)^2-4(1)(-5)}}{2(1)}[/tex]
[tex]\\ \sf\longmapsto x=\dfrac{4\pm \sqrt{16+20}}{2}[/tex]
[tex]\\ \sf\longmapsto x=\dfrac{4\pm 6}{2}[/tex]
[tex]\\ \sf\longmapsto x=\dfrac{10}{2}\:or\:\dfrac{-2}{2}[/tex]
[tex]\\ \sf\longmapsto x=5\:or\:-1[/tex]
[tex]x {}^{2} - 4x - 5 = 0 \\ x {}^{2} + x - 5x - 5 = 0 \\ x(x + 1) - 5(x + 1) = 0 \\ (x + 1)(x - 5) = 0 \\ x + 1 = 0 \\ x - 5 = 0 \\ x = - 1 \\ x = 5[/tex]
The equation has two solutions:x=5, x=-1Graph is in the attachment!!Rewrite 5/12 and 3/4 so they have a common denominator
Answer:
5/12 = 5/12
3/4 = 9/12
Step-by-step explanation:
The common denominator is 12.
5/12 is already in the common form.
3/4= 3*3 / (4 * 3) = 9/12
Approximate the length of the diagonal of the rectangle to the nearest tenth. The sides are 10 and 18
Answer:
20.59
Step-by-step explanation:
Find the x - and y- intercepts of the graphs of the linear equation 2x + 3y = 12
The x intercept is ?
The y intercept is ?
Answer:
Step-by-step explanation:
Move all terms that don't contain
x
to the right side and solve.
x
=
6
+
3
y
2
Please helppp
I’ll mark
DerekPangrel60 Answer this question
Answer:
hello thank you for brainliest
A bee colony produced 0.5 pounds of honey, but bears ate 0.2 pounds of it. How much honey
remains?
Answer:
0.3 pounds
Step-by-step explanation:
[tex]0.5 - 0.2 = 0.3[/tex]
what is the probability of selecting four red cards from a standard deck if each card is replaced before the next one is selected
Answer:
1/16
Step-by-step explanation:
1/2 * 1/2 * 1/2 * 1/2
=1/16
Error Analysis Describe and correct the error made in solving the literal
equation at the right for n.
*need help asap!*
Answer: 2m+1/2
Step-by-step explanation: 2m=-6n+3
2m-3=-6n
(2m-3)/-6
n= 2m+1/2
What is the least common denominator of 1/2 and 17/20
How many different 9-letter "words" can you
make by arranging the letters in DEVIATION?
The arrangements don't have to be actual words
that are included in any dictionary.
There are 5040 different 9-letter “words” that can be made by arranging the letters in DEVIATION.
The given word is DEVIATION and we are required to find out the number of different 9-letter “words” that can be formed by arranging its letters.
To solve the problem, we will use the formula for finding permutations of n objects taken r at a time when all the objects are distinct.
The formula is given by: nPr = n! / (n-r)! where n is the total number of objects and r is the number of objects to be selected.
Here, we have 9 objects (letters) and we need to arrange all of them, so r = 9.
Now, we need to find out the value of n.
The given word DEVIATION has 9 letters, but two of them (E and I) are repeated twice.
Therefore, n = 9 - 2 = 7.
We will substitute these values in the formula to get the required answer:
nPr = n! / (n-r)! = 7! / (7-9)! = 7! / (-2)! = 7! / 1 = 5040
Therefore, there are 5040 different 9-letter “words” that can be made by arranging the letters in DEVIATION.
For more questions on permutations
https://brainly.com/question/28065038
#SPJ8
Which simplified equation below represents the equation of the line, y - y1 = m(x - x1), through the point (4,4) that is perpendicular to x - 3y = -18?
A: y = 2/3x + 8/3
B: y = -3x + 4
C: y = 1/3x + 4
D: y = -3x + 16
(I asked this already but some genius messed it up)
Answer:
D
Step-by-step explanation:
y-y1=m(x-x1) through (4,4)
x-3y= -18 is perpendicular : m1*m2=-1
y=mx+c
-3y=-18-x
3y= 18+x
y=x/3 + 6
y= 1/3x + 6
m1*m2= -1
m1= -1/m2
m1= -1/1/3
m1= -3
y- 4= -3(x - 4)
y-4= -3x +12
y= -3x +12+4
y= -3x + 16
What is the slope of the line through (3, 2) and (-3, 4)?
5
(-3, 4)
4
(3, 2)
2
1
x
-3
-2
-1
1
2
3
4.
A. 3
B. - 1/3
C. 1/3
D. -3
Answer:
- 1/3
Step-by-step explanation:
Plllllllllleeeeeeeeeeeesssse help!
Answer:
3x + 2
Step-by-step explanation:
Find the value of the x.
Step-by-step explanation:
By angle sum property
7x-41+5x-12+2x+9 = 180
14x -44 =180
14x =224
x= 224/14
x= 16°
Answer:
thanks for this question as I also wanted it
Step-by-step explanation:
may I know in which grade are you
if mary has 36,392 ants and mary gives her 37,993 times that amount plus 3833 fewer ants how many ants does mary have? PLZ HELPP
Answer:
i dont know
Step-by-step explanation:
sorry
Jason deposits $1200 in an account that earns 7% interest compounded quarterly. How much will Jason have after 6 years?
Answer:
50400
Step-by-step explanation:
hope this helps
-5/8 does this mean the entire fraction is negative
Answer: Yes
Step-by-step explanation:
Remember, a fraction with a negative sign anywhere is a negative fraction; in other words, it represents a negative quantity. As long as you write only one negative sign, it doesn't matter whether you put it before the denominator, before the numerator or before the entire fraction
Solve −163 = −25d .
Multiple choice question.
A)
−403
B)
−3215
C)
3215
D)
403
Answer:
the answer to this question is d
Cuanto es 103+80 entre 4
Answer:
732
Step-by-step explanation:
Evaluate -2 + 7 + (-4)
Answer:
1.
Step-by-step explanation:
+ (-4) = - 4 so we have
-2 + 7 - 4
= 5 - 4
= 1.
12 = 2x + 4x
solve and show your work. pls help.
i didn't pay attention to the class
Answer:
x=2
Step-by-step explanation:
Let's solve your equation step-by-step.
Step 1: Simplify both sides of the equation.
12=2x+4x
12=(2x+4x)(Combine Like Terms)
12=6x
12=6x
Step 2: Flip the equation.
6x=12
Step 3: Divide both sides by 6. 6x/6=12/6
x=2
Hope you found this helpful and have good day (.
Answer:
2
Step-by-step explanation:
plus the like-terms (x plus x): 2+4
so 12=6x. get 6 out of the x-term. X is the unknown number being multiplied by 6. To get it to the other side, divide the numbers. So: 12/6=x and 12/6 is 2. so x=2.
Work out the angle of x 97degrees
Answer:
Answer is 3x
Step-by-step explanation:
120% of what number is 102 and how do you write the question? (Include a variable)
Answer:
y = 85
Step-by-step explanation:
120% times y = 102
That's how you write the equation.