Answer:
1. Completing the square
2. Factorisation
3. Formula method
4. Graphical method
Answer:
- For a quadratic equation ax2 + bx + c = 0, The roots are calculated using the formula, x = (-b ± √ (b² - 4ac) )/2a.
- Discriminant is, D = b2 - 4ac. If D > 0, then the equation has two real and distinct roots.
divide 100cm in the ratio1/2:1/4:1/5 to the nearest whole number
Step-by-step explanation:
step 1: add the ratios
1/2 + 1/4 + 1/5 = 0.95
step 2: divide each ratio by the total sum of the ratios and multiply by a 100
(1/2 ÷ 0.95) × 100 = 52.63 rounded off equals to 53
(1/4 ÷ 0.95) × 100 = 26.31 rounded off equals to 26
(1/5 ÷ 0.95) × 100 = 21.05 rounded off equals to 21
These ratios should add up to a 100
so the ratio are 53 : 26 : 21
What is the answer to
235 x 4035
Answer:
235 x 4035 = 948,225
Step-by-step explanation:
If I have 999 bird(s) (thats alot) and someone comes and takes (steals) 998 bird(s) (oh no), How many bird(s) do I now have left to keep?
Answer:
the correct answer is 1 bird
Step-by-step explanation:
hope this helps
have an awesome day -TJ
may i please have brainliest
What are the zeros of this function?
A) -8
B) -9 and 10
C) -2 and 4
D) 1
I need help on this, how many solutions does this equation have.
Answer:
only one (1) solution
Step-by-step explanation:
[tex]6 = \frac{x}{4} + 2 \\ \\ 6 - 2 = \frac{x}{4} \\ \\ \frac{x}{4} = 4 \\ \\ x = 4 \times 4 \\ \\ x = 16.[/tex]
The above equation has one solution .
please hurry find the measure of S
Answer:
m∠S = 29.5
Explanation:
Q
S [tex]\huge\boxed {\sf \triangle}[/tex] R
In this triangle, QR = SQ, which means its an isosceles triangle, angle S and R is similar.
Thus solve:
m∠S = (180° - 121°)/2
m∠S = 29.5°
∆QRS is isosceles
QR=SQSo
<Q=<S=121°
Write the equation of the line that passes through (3, 4) and (2, −1) in slope-intercept form.
Answer: y=5x-11
Step-by-step explanation:
A Football Association has teams with 22
players each. Association rules state that
a player must be paid at least $20,000
and that the total of all players' salaries
for each team cannot exceed $600,000.
What is the maximum possible salary, in
dollars, for a single player?
The maximum possible salary for each player is calculated as $27,272.72
Data;
Numbers of Players in each team = 22Minimum allowed salary = $20,000Maximum allowed salary for the team = $600,000Maximum Possible SalaryThe maximum possible salary for a single player in each team can be calculated when we divide the total maximum allowed salary for the team by the total numbers of players. This would put all the players on an even pay or equal pay.
Let the maximum possible allowed salary be represented by x
[tex]x = \frac{60000}{22} \\x= 27,272.72[/tex]
The maximum possible salary for each player is calculated as $27,272.72
Learn more on ratios or proportions here;
https://brainly.com/question/1781657
Anyone know the answer to this question it’s about polynomials?!!?!
Answer:
Step-by-step explanation:
x+2) x^3+0x^2+0x-4(x^2-2x+4
x^3+2x^2
- -
_______________
-2x^2+0x
-2x^2-4x
+ +
____________
4x-4
4x+8
- -
______
-12
_____
[tex]\frac{x^3-4}{x+2} =x^2-2x+4+\frac{-12}{x+2}[/tex]
What is -2x=-8-2y in slope intercept form
Answer: y = x - 4
Step-by-step explanation:
Slope intercept form is y = mx + b
Given:
-2x = -8 -2x
Add 2x and 2y to both sides of the equation:
2y = 2x - 8
Divide both sides of the equation by 2:
y = x - 4
Can someone help me please
Answer:
A
Step-by-step explanation:
Point A of a triangle ABC is at (7,-2). If triangle ABC is reflected across the y-axis,
what are the new coordinates of A?
A (-7,2)
B (-2,-7)
C (-7,-2)
D (7,2)
Answer: C
Step-by-step explanation:
Answer:
Step-by-step explanation:
How many solutions does the system of equations below have?
2x – 3y = -9
4х – бу = -18
Answer:
2
Step-by-step explanation:
because they have the same symbol which let's them be able to add or sybtract
how do find the area
Answer:
112-40=72in............
......
25 POINTS !!! PLEASE HELP ITS MY LAST QUESTON!!!
A grocery store received two shipments of watermelon. Each watermelon in a shipment was weighed, then a line plot was made of all of the weights in a shipment What statement about the two plots' distributions is true?
Answer:
The degree of overlap between the two distributions is moderate.Step-by-step explanation:A grocery store received two shipments of watermelon. Each watermelon in a shipment was weighed, then a line plot was made of all of the weights in a shipment. What statement about the two plots’ distributions is true?The true statement is - option A - The degree of overlap between the two distributions is moderate.
Step-by-step explanation:
mark me brainliest!!
A business owner purchases supplies for a laundromat and a car wash.
Part A
The owner purchases 6 cases of laundry soap, 8 cases of fabric softener, and 3 cases of bleach for the laundromat. Each case of laundry soap costs $68.45, each case of fabric softener costs $39.71, and each case of bleach costs $52.25.
Which is the best estimate of the total cost, in dollars, of the laundry items?
A. 750.00
B. 830.00
C. 890.00
D. 920.00
Part B
The owner purchases 5 buckets, 10 brushes, 48 towels, and 1 case of air fresheners for the car wash. The total cost of the purchases is $144.08. Each bucket costs $2.89, each brush costs $7.91, and each towel costs $0.36.
What is the cost, in dollars, of the case of air fresheners?
Enter your answer in the box.
Answer:
part a: is c
part b: $33.25
Step-by-step explanation:
PART A: I did 6x68.45=410.70
8x39.71=317.68
3x52.25=156.75
410.7+317.68+156.75=885.13
so the closest thing to it is c
PART B: i did
5x2.89=14.45
10x9.91=79.10
48x0.36=17.28
14.45+79.10+17.28=110.83
144.08-110.83=33.25
so the case of air fresheners was $33.25
Multiplication of fractions
3/4×7/15
Answer:
[tex]\frac{7}{20}[/tex] or 0.35
Step-by-step explanation:
[tex]\frac{3}{4} * \frac{7}{20} \\3*7=21\\4*15=60\\\frac{21}{60} \\[/tex]
Now simplify.
[tex]\frac{21}{60}[/tex] = [tex]\frac{7}{20}[/tex]
In a class of 30 pupils, 12 are boys What percentage of the class are boys?
the highlighted question is wrong haha please i need this by 9
x = 5, AB = 14, BC = 8
=====================================================
Explanation:
The triangles are similar, which can be proven through the angle angle theorem.
The similar triangles allow us to form the proportion below.
EB/DB = AB/BC
7/4 = (2x+4)/(x+3)
7(x+3) = 4(2x+4)
7x+21 = 8x+16
21-16 = 8x-7x
5 = x
x = 5 is part of the answer
Then we can use that x value to find the following
AB = 2x+4 = 2*5+4 = 14 is the length of AB
BC = x+3 = 5+3 = 8 is the length of BC
Write an equation in standard form of a line that goes through these two points (3, 4) and (5, -5). Please help and explain it because I want to learn how to do this.
Answer:
first find the slope
finding slope
y2-y1/x2-x1
-5-4/5-3
-9/2
then the slope is -9/2 or -4.5
then y=mx+b
y=-4.5x+b
then replace y=-4.5x+b
replace y by 4 and x by 3
4=-4.5times 3 +b
4=-13.5+b
b=17.5
then the equation is y=4.5x+17.5
if you have any question ask me thank you
Identify the type of the pairs of angles.
∠3 and ∠5
∠1 and ∠8
∠2 and ∠6
∠1 and ∠4
∠4 and ∠5
can someone please help me
Step-by-step explanation:
A. First, convert 30 minutes to a hour.
[tex] \frac{30 \: mins}{1} \times \frac{1 \: hour}{60 \: mins} = 0.5 \: hours[/tex]
[tex]4 + 0.5 = 4.5 \: hours[/tex]
Now, we can subsitue.
Part A: 1.
[tex]d(t) = 6 + 5.5 \cos( \frac{\pi}{6}(4.5) ) [/tex]
[tex]d(t) = 6 + 5.5 \cos( \frac{3\pi}{4} ) [/tex]
Part B:
[tex] \cos( \frac{3\pi}{4} ) = - \frac{ \sqrt{2} }{2} [/tex]
so
[tex]6 + 5.5( - \frac{ \sqrt{2} }{2} )[/tex]
which is approximately
2.11. feet.
Part C: The depth of the water is approximately 2.11 feet in 4.5 hours, or 4 hours and 30 minuties.
Find the distance between the two points in simplest radical
form.
(3,0) and (-3, -8)
Answer: 10 units
Step-by-step explanation:
We will use the distance formula and solve. Let (3, 0) be point 1 and (-3, -8) be point 2.
d = [tex]\sqrt{(x_{2} -x_{1})^{2} +(y_{2} -y_{1} )^{2} }[/tex]
d = [tex]\sqrt{(-3-3)^{2} +(-8-0)^{2} }[/tex]
d = [tex]\sqrt{(-6)^{2} +(-8)^{2} }[/tex]
d = [tex]\sqrt{36 +64}[/tex]
d = [tex]\sqrt{100}[/tex]
d = 10
The distance between the two points given is 10 units.
Use the distributive property to evaluate 4(2x – 1) when x = 5.
O4
O 39
O 32
O 36
What's the value of x?
Answer:
x = 15units
Solving steps:
QS = QT + STQS = 16 + 9
QS = 25
QSR = RSTCos(QSR) = RS/QS
Cos(QSR) = x/25
Cos(RST) = ST/RS
[tex] \frac{x}{25} = \frac{9}{x} [/tex]
=> [tex]x {}^{2} = 225[/tex]
=> [tex]x = \sqrt{225} [/tex]
=> x = 15
Solve for x. round to nearest tenth or degree, if necessary 19 32
500 POINTS PLEASE HELP FASTEST ANSWER WILL BE MARKED BRAINLIEST
PLEASE HELP ME IM SO DESPERATE LITERALLY DUE IN 5 MINUTES PLEASE HELP!!!!!!!!!
( help with number 6)
Answer:
Five number summary
Step-by-step explanation:
I just relearned this yesterday
I have no idea how to round to the nearest cent
find the value of x please
Answer:
x=21°
Step-by-step explanation:
in the isosceles triangle, if two sides are equal,then the angles opposite those sides are equal.
so, 2x=42° ( exterior angle of a triangle is equal to the sum of the two opposite interior angles)
x=21°
A student completes 2/5 of a science project in 3/4 hour. At this rate, what fraction of the project can the student complete per hour?
The fraction of the fence completed in one hour at a rate of [tex]\frac{2}{5}[/tex] of the
fence in [tex]\frac{3}{4}[/tex] hours is [tex]\frac{8}{15}[/tex].
How can the fraction completed in one hour be found?The fraction of the fence completed in [tex]\mathbf{\frac{3}{4}}[/tex] of an hour = [tex]\frac{2}{5}[/tex]
Required:
The fraction of the fence the student completes per hour;
Solution;
The time [tex]\mathbf{\frac{2}{5}}[/tex] of the fence is completed = [tex]\frac{3}{4}[/tex] of an hour
Therefore;
[tex]The \ in \ \mathbf{\frac{\dfrac{3}{4} \ hour}{\dfrac{3}{4} \ hour}} = 1 \ hour \ the \ frraction \ completed = \dfrac{\dfrac{2}{5} }{\dfrac{3}{4} \ hour} = \dfrac{8}{15} \ per \ hour[/tex]
The fraction of the fence completed per hour = [tex]\underline{\frac{8}{15}}[/tex]
Learn more about fractions here:
https://brainly.com/question/21339546