Answer:
x = 2 or
x = 9
Step-by-step explanation:
x² - 11x + 18 = 0
x² - 9x - 2x + 18 = 0
x(x - 9) - 2(x - 9) = 0
(x - 2)(x - 9) = 0
x - 2 = 0 or x - 9 = 0
x = 2 or x = 9
Thus, x = 2 or 9
-TheUnknownScientist
Answer:
x = 2, x = 9
Step-by-step explanation:
Given
x² - 11x + 18 = 0
Consider the factors of the constant term (+ 18) which sum to give the coefficient of the x- term (- 11)
The factors are - 2 and - 9 , since
- 2 × - 9 = + 18 and - 2 - 9 = - 11 , thus
(x - 2)(x - 9) = 0 ← in factored form
Equate each factor to zero and solve for x
x - 2 = 0 ⇒ x = 2
x - 9 = 0 ⇒ x = 9
2)
2r+8-r=-7 solve the equation
Answer:
r = -15
Step-by-step explanation:
2r + 8 - r = -7
~Combine like terms
r + 8 = -7
~Subtract 8 to both sides
r = -15
Best of Luck!
Answer:
hii
Step-by-step explanation:
Group Like Terms
2r-r+8=-7
Add smiliar elements
r+8=-7
Subtract 8 form both sides
r+8-8=-7-8
SImplify
r=-15
State if the given functions are inverses.
1)
F(x)=1/2x -2
g(x) = 2x + 4
Answer:
Yes
Step-by-step explanation:
if [tex]f(x)=\frac{1}{2}x-2[/tex] then what is [tex]f^-1(x)[/tex] (the inverse of f(x)? let's find out[tex]f(x)=\frac{1}{2}x-2\\y=\frac{1}{2}x-2[/tex] make f(x) into yThen make y into x and make x into y so [tex]x=\frac{1}{2}y-2[/tex][tex]x=\frac{1}{2}y-2[/tex] now get the new y on the left and everything else on the right[tex]x=\frac{1}{2}y-2\\x+2=\frac{1}{2}y\\2(x+2)=(2)\frac{1}{2}y\\y=2x+4[/tex] now make y = g(x)[tex]g(x)=2x+4[/tex] So you found the inverse of f(x) and it is the same as g(x), so the functions are inverses of each otherA: x = 3
B: y = 3
C: y = x
D: x = 6
help please
PLEASE ANSWER!!!!! ASAP!!! WILL GIVE BRAINlIST!!!!!!!! THANKS!!!
A box of greeting cards contains 20 birthday cards, 15 get-well cards, and 15 thank-you cards.
Find the percent of each type of card in the box
Answer:
Birthday Cards= 40%
Get-well cards= 30%
Thank-you cards= 30%
Step-by-step explanation:
PLEASE BRAINLIEST AND 50 POINTS PART 1 Clare estimates that her brother is 4 feet tall. When they get measured at the doctor's office, her brother's height is 4 feet, 2 inches.
Which measurement should be considered the actual height?
Because the doctor actually measures his height. The height of 4 feet 2 inches should be considered the actual height.
(2.3x10^4)x(1.5x10^-2
here's the solution luv
Answer:
3.45x10^2
Step-by-step explanation:
Thankyou
I will mark brainliest!
Please help I’m giving extra points !!!
2 questions ( look at the photo below and answer that one as well)
1) the weight of an object of the earth varies directly as the same object on the moon . An 400 pound object will weigh 60 pounds on the moon . How much would an 80 pound object weigh on the moon?
1) 20
2)8
3)14
4) 12
Answer: it 3
Step-by-step explanation:
Can someone help me answer this pls.
Scale shows weight = 193
Weight of assistant = 135
Weight of dog = x
x = 193 - 135
x = 58
The dog weighs 58 pounds.
What is the value of the expression (5)^3
Answer:
the answer is 125.
Step-by-step explanation:
hope this helps!
Answer:
x = -125
I got it right
What is 3 ÷
2
5
?
The quotient is 7 and
.
A number line going from 0 to 3. Numbers 0, 1, 2, and 3 are marked on the line. Marks divide the spaces between each number into 5 equal parts.
Answer:
The quotient is 7 1/2.
Answer:
1/2
Step-by-step explanation:
got it right on edge
What is -5(-10z + -4) +-3
Answer:
50z + 17
Step-by-step explanation:
-5(-10z + -4) +-3
distribute
= 50z +20 -3
=50z + 17
Answer:
50z + 17
I hope this helps!
I really need help so please be right .Write the radical in simplest radical form and you must show all steps please. √(5/8)
Answer:
√5/6
Step-by-step explanation:
Find the slope of the line that passes through the points (1, -2) and (9,7)
Answer:
9/8
Step-by-step explanation:
We can use the slope formula
m = ( y2-y1)/(x2-x1)
= ( 7 - -2)/( 9 - 1)
= ( 7+2)/( 9-1)
= 9/8
N more then then the difference of 7 and 2
Please help me ASAP!!!!
Answer:
what exactly is your question
Your teacher is giving a test worth 200 points. There are a total of 32 four-point and
seven-point questions. How many 4 and 7-point questions are on the test?
Answer: a+b=32
4a+7b=200
a = 15
b = 20
There are 15 four pointers and 20 seven pointers. You can plug in the numbers to check.
it only 5 points but it’s okay.
Step-by-step explanation:
Jennifer walks 9 blocks south and 5 blocks west. Approximately how many blocks is she from home if she were to take a direct path?
9514 1404 393
Answer:
10.3
Step-by-step explanation:
Assuming the blocks are square, we can use the Pythagorean theorem to find the diagonal distance.
d² = 9² +5² = 81 +25 = 106
d = √106 ≈ 10.3
Jennifer is about 10.3 blocks from home.
If the sides to a triangle are 20, 40, and 80 cem, is it Right triangle?
Answer: no
because using Pytago theorem, we have:
20² + 40² ≠ 80²
80² + 20² ≠ 40²
80² + 40 ² ≠ 20²
Step-by-step explanation:
Answer:
No, it does not follow the Pythagorean Theorem.
Step-by-step explanation:
A right triangle must follow the equation a^2 + b^2 = c^2 for its sides to be true. 20^2 + 40^2 = 2000.
the square root of 2000 equals about 44.7213595.
Thus, a triangle with sides 20, 40, and 80 is not a right triangle.
For every 1 litre of water used to make a medicine, 150 ml of sucrose and 600ml of saline solution are used. Express the amount of water, sucrose and saline solution needed as a ratio in its simplest form.
Answer:
1 litre:150ml:600 ml
Step-by-step explanation:
1 liter water
150 ml sucrose
600 ml saline
Answer:
20:3:12
Step-by-step explanation:
what is the average rate of change?
f(x)=x^2+3
From x=0 to x=3
Answer:
dk
Step-by-step explanation:
d
Which Theorem Is Being Used?
Step-by-step explanation:
by SAS since line BD is a perpendicular bisector
Answer:
Pythagoream theorem is being used
the given diagram can be used to prove the Pythagorean theorem. which expression represents the total area of the red and blue squares?
Answer: the answer a2 + b2
area of red square = a2; blue square = b2 -> total area = a2 + b2
Step-by-step explanation:
find the nth term of the sequence -5,-1,3,7
4n - 9
Step-by-step explanation:
use formula nth term = a + (n-1)d where a is the first term and d is common difference
Answer:
[tex]\bold{a_n=4n-9}[/tex]
Step-by-step explanation:
-1-(-5) = 4 and 3-(-1) = 4 and 7-3 = 3
so: d=4
[tex]a_n=a_1+d(n-1)\\a_1=-5\\d=4\\\\a_{n}=-5+4(n-1)=-5+4n-4=4n-9[/tex]
imagineaza ti o intamplare fantastica din timpul unei calatorii si redacteaza o naratiune de 100-150 de cuvinte in care sa prezinti. In compozitia ta.este necesar:-sa relatezi intamplarea,respectand succesiunea logica a evenimentelor; -sa prezici repele spati-temporale; -sa ai un continut adecvat cerintei; - sa respectti precizarea privind numarul de cuvinte
the answer is 50 maybe
Solve the inequality:
2x - 7<-5 or 10x + 5 >85
Answer:
Step-by-step explanation:
hi its me addison ray
WILL GIVE BTAINLY Which is the coldest temperature? Explain how you determined this using the number line.
A -3.5 F
B 5 F
C 1.5 F
D -0.5
E -2 F
the rest of the choices 2.5 and -4
Answer:
-3.5 it is negative.
Can somebody help me with these? Will mark brainliest!
Answer:
5) rotation
6) rotation
Determine the domain and the range for this relationship. Drag the tiles to the correct locations on the image. Not all tiles will be used.
0 ≤ x ≤ 720 ≤ x ≤ 60 ≤ y ≤ 6{0, 12, 24, 36, 48, 60, 72}{0, 1, 2, 3, 4, 5, 6}{0, 6, 12, 18, 24, 30}0 ≤ y ≤ 72
Answer:
Domain: {0,6,12,18,24,30}
Range: {0,12,24,36,48,60,72}
Step-by-step explanation:
I hope I'm right very sorry if I'm not. If so please give "Brainiest". :)
Thanks!!
The domain of 0 ≤ x ≤ 6 is x ∈ [0, 1, 2, 3, 4, 5, 6], and the range of the 0 ≤ y ≤ 6 is y ∈ [0, 1, 2, 3, 4, 5, 6].
What is a function?It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
The question is incomplete.
The complete question is in the picture, please refer to the attached picture.
0 ≤ y ≤ 72
The range will be y ∈ [0, 72]
0 ≤ x ≤ 72
The domain will be x ∈ [0, 72]
0 ≤ x ≤ 6
The domain will be x ∈ [0, 1, 2, 3, 4, 5, 6]
0 ≤ y ≤ 6
The range will be y ∈ [0, 1, 2, 3, 4, 5, 6]
Thus, the domain of 0 ≤ x ≤ 6 is x ∈ [0, 1, 2, 3, 4, 5, 6], and the range of the 0 ≤ y ≤ 6 is y ∈ [0, 1, 2, 3, 4, 5, 6].
Learn more about the function here:
brainly.com/question/5245372
#SPJ5
4x – 2y = 2
x = y + 4
Answer:
y = -7 and x = -3
Step-by-step explanation:
Substitute x for y + 4 in the first equation and solve for y
4(y+4) - 2y = 2
4y + 16 - 2y = 2
16 + 2y = 2
2y = -14
y = -7
Then in order to find x, substitute y for -7 in the second equation
x = -7 + 4
x = -3
Answer:
x= -3, y= -7
Step-by-step explanation:
substitute x=y+4 in the first equation
4 (y+4) -2y =2 distribute
4y+16-2y=2 subtract both sides by 16
4y-2y=2-16 combine like terms
2y= -14 divide both sides by 2
y=-7
x=y+4 substitute y=-7
x= -7+4
x= -3
Determine the range of the following graph