How many solutions does X^2 - 9x = -11 have?
Answers
Answer:
this is the answer Hope's it helps
Step 1: Subtract 11 from both sides.
x²9x-11=11-11
x² - 9x - 11 = 0
For this equation: a=1, b=-9, c=-11
1x² + -9x + -11 = 0
Step 2: Use quadratic formula with a=1,
b=-9, c=-11.
X = - b ± √b² - 4ac
2a
X = -(-9) ± √(-9)² - 4(1)(-11)
2(1)
X =
9+√125/ 2
9/2 5/2 √5 or x = 9/2 -5/2 + -5/2 √5
Related Questions
Henry spent 37.88 at the grocery store.he know has 26.92 left .how much money did Henry originally have?
Answers
Answer:
64.8
Step-by-step explanation:
37.88+ 26.92
64.80
Answer:
He had 64.8
Step-by-step explanation:
Just add 37.88 and 26.92 together :)
37.88
+26.92
64.8
Hope it helps!! :D
HELP ASAP PLEASEE!!
Simplify this expression.
5^6 x 5^-2 over 5^-7
a
5^1
b
5^11
c
5^-3
d
5^-19
Answers
Answer:
5^6 × 5^(-2) × 5^(-7)
= 5^{6+(-2)+(-7)}
= 5^{6-2-7}
= 5^(-3)
Option c 5^-3
Help please how do I find x and y
Answers
Answer:
Option 3
Step-by-step explanation:
tan33°=x/7
x=4.5
4.5^2+7^2=y^2
20.25+49=y^2
y=√69.25
y=8.3
Multiple Select: Multiply and match each of the following
expressions.
A. (x − p) (x + p)
B. (x – 5) (x + 7)
C.(x + p) (x + p)
A.isz? - 2px – pº A.isx? – p2 B.isz? + 2x – 35
B.isx? - 20 – 35 Cisx2 + 2px +p?
Answers
Answer:
A. (x − p) (x + p) = x² - p²
B. (x – 5) (x + 7) = x² + 2x - 35
C. (x + p) (x + p) = x² + 2px + p²
Step-by-step explanation:
To find - Multiply and match each of the following expressions.
A. (x − p) (x + p)
B. (x – 5) (x + 7)
C.(x + p) (x + p)
Proof -
A.)
The expression is - (x − p) (x + p)
Now,
(x − p) (x + p) = x(x + p) - p(x + p)
= x(x) + x(p) - p(x) - p(p)
= x² + xp - px - p²
= x² - p²
⇒(x − p) (x + p) = x² - p²
B.)
The expression is - (x – 5) (x + 7)
Now,
(x − 5) (x + 7) = x(x + 7) - 5(x + 7)
= x(x) + x(7) - 5(x) - 5(7)
= x² + 7x - 5x - 35
= x² + 2x - 35
⇒(x − 5) (x + 7) = x² + 2x - 35
C.)
The expression is - (x + p) (x + p)
Now,
(x + p) (x + p) = x(x + p) + p(x + p)
= x(x) + x(p) + p(x) + p(p)
= x² + xp + px + p²
= x² + 2px + p²
⇒(x + p) (x + p) = x² + 2px + p²
super urgent will give u 5 rating and thansk if u answer
A jar contains 12 oatmeal cookies, 13 sugar cookies and 5 chocolate chip cookies. The percent of cookies that are oatmeal is ?
Answers
Answer:
40%
Step-by-step explanation:
I added all the cookie numbers together to get 30 then I found the percentage of 12 in 30 which is equal to 40 percent
What is the length of the line?
Choose 1 answer:
Answers
Answer:
√29
Step-by-step explanation:
We can use the pythagorean theorem to find the length of this line. You can draw a vertical line downwards from the higher point and a horizontal line towards the left from the lower point. This will create a right triangle. Wd can count the lengths of the legs, getting 2 and 5. We can substitute these values in the pythagorean theorem:
a^2 + b^2 = c^2
2^2 + 5^2 = c^2
4 + 25 = c^2
c^2 = 29
c = √29
Since c is the hypotenuse and is the same length of the line, the line is √29 units long
Someone help me with this pls
Answers
Answer:
5-² is your correct answer
Answer:
=5^10/5^12
= 5^10-12
=5^-2
What is the slope of (-3,-2) (7,2)?
Answers
Answer:
The slope is 2/5
Step-by-step explanation:
To find the slope, you must subtract the second Y-Axis from the first Y-Axis then the second X-Axis from the first X-Axis. Then simplify.
Problem: (-3,-2) (7,2)
Solution: -2 - 2 = -4 , -3 - 7 = -10 = -4/-10 = 2/5
Mark me as brainliest!!
How long could a student take to paint their canvas if they are slower than 75% of the other students?
Answers
Answer:
multiply the other kid's time by 3/4
Step-by-step explanation:
there's some info missing but hope this helps!
What is the volume of the prism in cubic inches ?
what is the surface area in square inches ?
Answers
Answer:
Step-by-step explanation:
Volume
V = B * h
B = 1/2 a * b
Solution
Area of Triangles = B = 1/2 * 6 * 8
Area of Triangles = B = 24 square inches
Volume = B * H
Volume = 24 * 12
Volume = 288 cu in
Surface Area
Triangles
Area of one triangle = 24 square inches [ See Above ]
Area of two triangles = 48 square inches
Left Side
Area = L * W
L = 12
W = 8
Area = 12 * 8
Area = 96
Right side
Area = L * W
L = 12
W = 6
Area = 12 * 6
Area = 72
Area Back
L = 12
W = 10
Area = 12 * 10
Area = 120
Total = 120 + 72 + 96 + 48 = 336 square inches
20 points! pls helppppp it's almost recognition day for me!!
I'm sorry but i'm bad at math ;-;
using the given figures, find the values of the unknown variables
(PROVING ISOSCELES TRAPEZOID)
Answers
2. x = 32, y = 52
3. x = 4, y = 5
assuming that all the shapes are regular
Write the equation of the line that goes through the point (-2, 8) with a slope of 1/2
Answers
Answer:
The answer is Y = 1/2x + 9
Step-by-step explanation:
The general equation with a slope and intercept is:
y=mx+b
We are given a slope of 1/2, which represents the "M" part of the equation.
So we have:
Y = 1/2x + b
We do not know what "b" is, so the equation is not complete.
We plug in "-2" for X and "8" for Y:
8 = 1/2 (-2) + b
b = 9
So, the full equation is: Y = 1/2x + 9
Help please. Find the area of this circle
Answers
Answer:
8
Step-by-step explanation:
Explain how to find the volume of the four ice cubes in the glass below if each ice cube is 2 inches wide. Pls help
Answers
The total volume of the ice cubes is 32 in^3
We know that, for a cube of side length L, the volume is:
V = L^3
So if we know that each of the ice cubes is 2 inches wide, we can see that the side length of each ice cube is 2 inches.
Then we have L = 2in
Then the volume of each ice cube is:
V = (2in)^3 = 8 in^3
And we have four of these, then the total volume is 4 times the volume of a single ice cube.
Total volume = 4*( 8 in^3) = 32 in^3
If you want to read more about this topic, you can see:
https://brainly.com/question/24328827
please answer accurately with a full explanation and please don't do short answers thank u, and if u spam this question u will be reported. please answer with a proper answer, not a short one thank u so much
Answers
Answer:
When buying a backpack you want to pick the one with the greatest volume. Backpack A has the highest volume (5200) which means that it's the backpack that will allow me to fit the most stuff.
Step-by-step explanation:
This questions i just asking which bag has the greatest volume
the formula for that is just l*w*h
calculate the volume for each backpack:
a: 26*20*10=5200
b: 32*16*8=4096
c: 28*14*12= 4704
We can see that backpack A has the greatest volume, so we should pick it.
Please help me find area of circle
Answers
Answer:
12.568m^2
Step-by-step explanation:
A=πr^2 where r is. radius
=3.142(2^2)
=3.142(4)
=12.568m^2
Answer:
8m
Step-by-step explanation:
the perimeter of a square is 32cm. find the area
Answers
Answer:
64 cm
Step-by-step explanation:
If the perimeter of a square is 32cm. Each side is the same length, and there are 4 sides. 32÷4=8
Each side equals 8. 8•8=64 The area is 64cm.
find equation so EASY PLZ HELPPP URGENT WILL GIVE BRAINESD MARK 11+ POINTS
Answers
Answer:
y= -4x+4
Step-by-step explanation:
there you go!!!
Answer:
m= -4 would be the equation
Step-by-step explanation:
Helpp plsss I neeed to finish this test ASAP plssssssss thank youu helpp me with this question
Answers
Answer:
try 19.8
Step-by-step explanation:
The longest sides of a right triangle is called the?
Answers
Answer:
hypotenuse
Step-by-step explanation:
Answer:
HYPOTENUSE
Step-by-step explanation:
No need to explain
°^°
What is the length of the hypotenuse
Answers
Answer:
10
Step-by-step explanation:
8 to the second power is 64
6 to the second power is 36
36+64=100
the square root of 100 is 10
so 10 is the length of the hypotenuse
Hope this helps!
Abby and Bill share a 20-ounce bucket of clay. By the end of the week, Abby has used
1/10
of the bucket, and Bill has used
2/5
of the bucket of clay. How many ounces are left in the bucket?
Answers
Answer:
A little brain/willpower.....Im sure you can figure it out!!!
Henry is planning to attend a public university after he graduates from high school in 3 years. He is devising a plan to save money each month to help with the expenses of attending the university. The cost of attending the public university for one-year is $26,500. His family has promised to contribute $13,450 each year he is in school. What is the minimum amount of money Henry must contribute to his savings per month for the next 3 years to have enough money to pay for his first year of tuition?
a
$501.32
b
$362.50
c
$294.38
d
$482.35
Answers
subtract the amount his parents are giving from the original cost of tuition and the divide by the number of months he had to save
Which of the following would use a histogram to represent the data?
speed of car
state of license on car
type of car
car color
Answers
Answer:
Speed of car most likely
Step-by-step explanation:
find the value of x. round your answer to the nearest tenth.
Answers
Answer:
The answer is A. 77.
Step-by-step explanation:
Using trigonometry formula
We know, tan = opposite/adjacent
So, tan x° = 13/3
=> x° = [tex]tan^{-1}[/tex](13/3)
∴ x° = 77.005° ≈ 77.01°
Answer:
A 77
Step-by-step explanation:
brainliest goes to whoever answers the question correctly also if you want more points answer my other questions
Answers
Answer:
D
Step-by-step explanation:
I am pretty sure it is D because the numbers on the chart don't seem inconsistent. You go from 11 to 2 which would give a big drop so it wouldn't be a linear function.
a. Find the mean, median, and mode of 12, 9, 17, 15, 10.
mean:
median:
Answers
helppppppppp meeeeeeeeeeeee
hurry
Answers
Answer:
9 feet im pretty sure
Step-by-step explanation:
Answer:
yolo
Step-by-step explanation:
Create an equation which contains the solution (-1,3)
Answers
Answer:
3x + y =0
Step-by-step explanation:
We need to create equation whose solution is (-1,3) . So let another point through which it passes be ( 0,0) .
Since at least two points are required for making a line .Slope :-
=> m = -1-0/3-0
=> m = -1/3
Using point slope form :-
=> ( x - x1) = m( y - y1)
=> ( x - (-1)) = -1/3( y - 3)
=> (x + 1 )3= -y + 3
=> 3x +3 = -y + 3
=> 3x + y = 0
✔️ Checking :-
(-1,3)=> 3(-1) + 3 = 0
=> -3+3=0
=> 0 = 0
• Hence the equation can be 3x + y = 0 .If the radius of a sphere is 6cm, then it’s volume is____
A. 288pi cm^3
B. 576pi cm^3
C. 72pi cm^3
D. 36pi cm^3
Answers
Answer:
[tex]A. \: 288\pi( {cm}^{3} )[/tex]
Step-by-step explanation:
Hint:
Formula = [tex] \frac{4}{3} \pi {r}^{3} [/tex]Radius = 6 cmSimplify:
[tex] \frac{4}{3} \pi (radius {)}^{3} [/tex][tex] \frac{4}{3} \pi \times {6}^{3} [/tex][tex] \frac{4\pi}{3} \times 216[/tex][tex]4\pi = \frac{216}{3} [/tex][tex]4\pi \times 72[/tex]
[tex]288\pi( {cm}^{2} )[/tex]
Hope it is helpful....