Answer:
x=0 and x=-1
Step-by-step explanation:
Given: x^2+x=0
Factor: x(x+1)=0
Use Zero Product Property: x=0 and x+1=0
Therefore, x=0 and x=-1
Which choice is the slope-intercept equation of the line shown below?
(1,2)
(0, -1)
A. y = 3x - 1
B. y = 2x-1
C. y = 2x + 1
D. y = 3x
Answer:
C is my answer
Step-by-step explanation:
Please help this is due today.
Answer:
[tex]b = 90[/tex]
[tex]c=80[/tex]
[tex]d =100[/tex]
Step-by-step explanation:
Given
See attachment
Required
Find b, c and d
First, we solve for b using:
[tex]b + 10 + b - 10 = 180[/tex] --- base angles of a parallelogram
Collect like terms
[tex]b + b =180+10-10[/tex]
[tex]2b = 180[/tex]
Solve for b
[tex]b = 180/2[/tex]
[tex]b = 90[/tex]
Then, we have:
[tex]d =b + 10[/tex]
[tex]c = b - 10[/tex] --- opposite angles
So, we have:
[tex]d =90 + 10[/tex]
[tex]d =100[/tex]
[tex]c = 90 - 10[/tex]
[tex]c=80[/tex]
Belleview High School has 12 chaperones for 198 students on a field trip. Which of the following schools has the same ratio of chaperones to students?
Group of answer choices
Answer:
Jefferson High School
Step-by-step explanation:
so the same ratio would be 12 chaperones to 210 students....12/210 reduces to 2/35
18/300 reduces to 3/50
20/350 reduces to 2/35
8/160 reduces to 1/20
14/260 reduces to 7/130
So the same ratio would be Jefferson High School
HELP HELP HELP ME OUT PLEASE WHATS THE ANSWER TO THIS YOU'LL GET 50+ BRAINLIEST POINTS PLEASE ANSWER CORRECTLY
A right triangle has a hypotenuse of 18 feet and a side length opposite ∠A of 12 feet. What is the measure of ∠A to the nearest degree?
Answer:
∠A = 42°
Step-by-step explanation:
sin ∠A = 12/18 = 0.6667
∠A = 41.81°
Answer:
42 degrees
Step-by-step explanation:
I need help
I missed the last classes and missed the explanation of the content
Answer:
a) 3.625 or [tex]\frac{29}{8}[/tex]
b) 7.05 or [tex]\frac{141}{20}[/tex]
(2.4 x 10^4)(4.5 x 10^3)
2.4x104(4.5x103)
Simplifies to:
10.8x11000
=10.8x11000
Hence factorize completely the expression
9x³y² - 4xy⁴
Step-by-step explanation:
[tex]9 {x}^{3} {y}^{2} - 4x {y}^{4} \\ = x {y}^{2} (9 {x}^{2} - 4 {y}^{2} )[/tex]
l'manbergian come to this and say hi
Answer:
Hey
Step-by-step explanation:
Answer:
Hi how are you
Step-by-step explanation:
I hope you have a wonderful day
Determine whether (2,-1) and (-4,2) satisfy the inequality 2x-3y>4. Neither (2,-1) nor (-4,2) satisfies the inequality. (-4,2) satisfies the inequality, but (2,-1) does not. (2,-1) satisfies the inequality, but (-4,2) does not. Both (2,-1) and (-4,2) satisfy the inequality.
Answer:
(2,-1) satisfies the inequality, but (-4,2) does not.
Step-by-step explanation:
To verify if the points satisfy the inequality, we replace then in the inequality, and see if we have a true statement or a false one.
(2,-1)
[tex]x = 2, y = -1[/tex]
So
[tex]2x - 3y > 4[/tex]
[tex]2(2) - 3(-1) > 4[/tex]
[tex]4 + 3 > 7[/tex]
[tex]7 > 4[/tex]
This is a true statement, which means that (2,-1) satisfies the inequality.
(-4,2)
[tex]x = -4, y = 2[/tex]
So
[tex]2x - 3y > 4[/tex]
[tex]2(-4) - 3(2) > 4[/tex]
[tex]-8 - 6 > 7[/tex]
[tex]-14 > 4[/tex]
This is a false statement, so (-4,2) does not satisfy the inequality.
The correct answer is:
(2,-1) satisfies the inequality, but (-4,2) does not.
PLEASE HELP MEEEEE!!
Answer:
2/6
3/9
4/12
Step-by-step explanation:
Answer:
2, 3, 4
Step-by-step explanation:
A line l2 is perpendicular to the line x + 2y – 5 = 0 without computing the gradient of this
line find the equation of l2 if it passes through (3, 4)
Answer:
y=2x-2
Step-by-step explanation:
first, let's put the line into y=mx+b form (slope-intercept form), where m is the slope (or gradient) and b is the y intercept
add 5 to both sides
x+2y=5
subtract x from both sides
2y=-x+5
divide by 2
y=-1/2x+5/2
perpendicular lines have slopes (gradients) that are negative (one is positive, another one is negative) and reciprocal (they are essentially the same number, just "flipped")
to find the slope of I2:
since -1/2 is negative, that means the slope of I2 will be 2 (2/1 is the reciprocal of 1/2 (positive version of -1/2))
so here's our equation so far:
y=2x+b
now we need to find b
because line will pass through (3,4), we can use it to solve for b
substitute 4 as y and 3 as x
4=2(3)+b
multiply
4=6+b
-2=b
therefore the equation is y=2x-2
hope this helps!!
In ΔSTU, the measure of ∠U=90°, UT = 80, SU = 39, and TS = 89. What ratio represents the tangent of ∠S?
Answer:
[tex]\frac{80}{39}[/tex]
Step-by-step explanation:
SOHCAHTOA
O =Opposite
A = Adjacent
H = Hpotenuse
If we draw it out we can see that the opposite side is the UT and adjacent side is SU for ∠S.
When an angle is asked for like here is S so the opposite side of the angle is the opposite side. and the angle close to it is the adjacent. The biggest side is the hypotenuse.
Which value is NOT a solution of x^3 + 64 = 0
Marc is a pharmacist and has documented the number of pills for the last 20 prescriptions he has filled. The data he recorded is in the table below. Assuming that Marc continues to fill prescriptions with number of pills that follow the same proportions, which of the following statements are true? Number of pills Prescriptions 101010 444 202020 444 303030 444 404040 555 505050 333 Total 202020 Choose all answers that apply: Choose all answers that apply: (Choice A) A In the long run, Marc can expect to fill prescriptions with 40 pills more often than he fills prescriptions with 50 pills. (Choice B) B The most likely number of pills in the next prescription that Marc fills is 40. (Choice C) C The expected number of pills in the next prescription that Marc fills is 29.5, point, 5. (Choice D) D The expected total number of pills in the next 20 prescriptions that Marc fills is 680.
Answer:
All except the one that ends with 680, so SELECT THE FOLLOWING:
✓In the long run, Marc can expect to fill prescriptions with 40 pills more often than he fills prescriptions with 50 pills.
✓The most likely number of pills in the next prescription that Marc fills is 40.
✓The expected number of pills in the next prescription that Marc fills is 29.5.
Step-by-step explanation:
I did it on Khan for an exam.
I need the surface area again plz
Answer:
31
Step-by-step explanation:
A=2(wl+hl+hw)
l -Length
w-Width
h-Height
A=2(wl+hl+hw)=2·(1·2+4.5·2+4.5·1)=31
kim is paid £9.40 per hour for the first 35 hours she worked each week
after 35 hours she is paid at one and a quater times the hourly rate
calculate how much she is paid for that week
Answer:
after 35 hours she makes 11.75 an hour
Step-by-step explanation:
HELP WILL MARK BRAINLIEST ANSWERRRRRR IF GOTTEN RIGHT
What did E=MC squared stand for
Answer:
[tex]{\huge\red{\fbox{{E = mc² }}}}[/tex]
✏ E = mc² stands for -> Energy equals mass times the speed of light squared.
✏ On the most basic level, the equation says that energy and mass (matter) are interchangeable; they are different forms of the same thing.
Answer:
✏ E = mc² stands for -> Energy equals mass times the speed of light squared.
✏ On the most basic level, the equation says that energy and mass (matter) are interchangeable; they are different forms of the same thing.
What is the answer to this question?
Answer:
I dont know
Step-by-step explanation:
im trying to get brainly points lol
A rectangle is 64 cm long 40 cm wide find is area and perimeter
Answer:
Assuming the length to be x and the width to be y.
Since the area is 64cm, hence
x*y = 64 (equation 1)
Since the perimeter is 40cm, hence
x + x + y + y = 40
2x + 2y = 40
2(x + y) = 2(20)
x + y = 20 (equation 2)
Hence by using simultaneous equation,
x = 20 - y (equation 3)
Substituting equation 3 into equation 1, we get
(20-y)*y=64
20y-y^2=64
Tidying up the equation,
y^2 - 20y + 64 = 0
By using factorisation,
(y-16)(y-4)=0
y=16 or y=4
By substituting y=16 into equation 1,
x*16=64
x = 4
By substituting y = 4 into equation 1,
x*4=64
x=16
Therefore,
The length is 4 cm while the width is 16 cm.
OR
The length is 16 cm while the width is 4cm.
Hope this helps!!
Dan received 45 out of 60 points on his science test. What percent did he receive on his test?
Library Items Checked Out
2.3, 13. 3. 2. 2. 3. 6. 1, 2.8
find the range median
what is the outlier
Answer:
Soln,
2 has the highest frequency
Mode=2
A bag contains 56 marbles: 7 red, 8 green, 11 yellow, 17 brown, and 13 blue.
If a marble is chosen at random, what is the probability that the marble is green?
A.1/5
B.1/6
C.1/7
D.1/8
Answer: D 1/8
Step-by-step explanation: hope this help
Answer:
1/5
Step-by-step explanation:
You count how many colors there are and make how many color as your denominator [5 colors(Red, Green, Blue, Yellow, and Brown)] and find out what color was picked as your numerator [Green(1 color)].
Find the measure of Arc MP.
Answer:
use this formula
x/230×2×pie×radius
PN=180
MPN=MN=31
MP=x
180=31+x
x=180-31
x=149
I need so much help help me please UwU
Answer:
Line A: y = 3x + 3
Line B: y = -1/3x + 3
Step-by-step explanation:
Line A points: (0, 3) and (1, 6)
Slope:
m=(y2-y1)/(x2-x1)
m=(6-3)/(1-0)
m= 3
y - y1 = m(x - x1)
y - 3 = 3(x - 0)
y - 3 = 3x
y = 3x + 3
Line B points: (0, 3) and (9, 0)
Slope:
m=(y2-y1)/(x2-x1)
m=(0-3)/(9-0)
m= -1/3
y - y1 = m(x - x1)
y - 3 = -1/3(x - 0)
y - 3 = -1/3x
y = -1/3x + 3
I WILL GIVE BRAINLIEST TO THE RIGHT ANSWER
CONFERENCES You are sitting down at a round table with 7 chairs for a business meeting. You notice that one of the chairs is shorter than the rest. If 7 people sit down at random, what is the probability that you will end up with the short chair?
A.1/42
B.1/42
C.1/6
D.1/7
what two steps are necessary to put this equation into standard form? x^2-3x+27=8x-3
Answer:Add 3 to both sides and subtract 8x from both sides.Step-by-step explanation:The standard form of a quadratic equation isHere a should not be zero.Now, we have to write the given equation in this formwe have to take 8x and -3 to the left side of the equation in order to write the equation in standard form.Therefore, we have to subtract 8x and add 3 to both sides of the equation.When we do this operation, we'll get the equation in standard form which is given byHence, option is correct.Add 3 to both sides and subtract 8x from both sides.
Please help me 7th grade math math
Answer: 1/8
Step-by-step explanation: hoped this helped:))
Answer:
i think its 1/3
Step-by-step explanation:
The probability of buying a small car is 1. What does that mean?
It is unlikely.
It is impossible.
It is definite.
It is likely
Answer:
it is unlikely if it is one out of 5
Step-by-step explanation: