Section A
[40 markah]
[40 marks]
Jawab semua soalan.
Answer all questions.
Harga bagi 1 kg buah manggis ialah RM(3x + 2). Sufri memperoleh RMx baki
bayaran setelah membayar 6 keping wang kertas RM10 untuk membeli x kg buah
manggis.
Hitung harga, dalam RM. bagi 1 kg buah manggis itu.
The price of 1 kg of mangosteen is RM(3x + 2). Sufri received the balance of purchase
of RMx after paying 6 pieces of RM10 notes for x kg of mangosteens.
Calculate the price, in RM, for 1 kg of mangosteen.
[4 markah]
[4 marks]
Jawapan/Answer:
The inverse of f(x) = x2 – 3 is
f-() = x2 +3
:: - (2) = V2 + 3
:: f-(x) = V2 - 3
:: f-1 (2) = 1 - 3
Answer:
f ⁻¹(x) = [tex]\sqrt{x + 3}[/tex]Step-by-step explanation:
Find the inverse of f(x) = x² - 3
Substitute x with y and f(x) with x and solve for y:
x = y² - 3y² = x + 3[tex]\sqrt{y^2}[/tex] = [tex]\sqrt{x + 3}[/tex]y = [tex]\sqrt{x + 3}[/tex]Replace y with f⁻¹(x):
f ⁻¹(x) = [tex]\sqrt{x + 3}[/tex]Step-by-step explanation:
i guess maths is the hardest subject
HELP, this is really hard and i’m struggling
Answer:
B or 2
Step-by-step explanation:
Because 2 and 4 are alternative interior angles that means that they are equal, but on the inside of the traversal (Parallels AB and CD)
Hope this helped :)
Answer:
it should be angle 2 and 4
Step-by-step explanation:
since 2 and 4 are interior angles they are the same and congruent so they have to be equal for the line to be parallel
For the line above, what is the slope? *
Answer: The slope is 2.
Step-by-step explanation:
To get the slope, use this tip: Rise over run
Count how much it rises, which is 4, and how much it "runs' which is 2. Now put rise above run which is 4/2. This simplifies to simply 2.
Answer:
The slope is 2.
Step-by-step explanation:
The points on the line are (1, -2) which can be labeled as x1 and y1, and the other is (3,2) which can be labeled as x2 and y2. you set up the equation in the slope formula, so 2 - - 2 / 3 - 1. Since there are two negatives, the subtraction signs turn into addition signs, and you get 4/2, which simplyfied is 2. Hope this helps :)
Helppppppppp pLeAsEeEe?
Answer:
The perimeter is 16 yards.
_
Step-by-step explanation:
♤You can solve using the pythagorean theorem.
♡We will be using the variable 'x' to represent the variable 'b' in the picture provided.
◇In the pythagorean theorem, a and b represents bases while the c represents the hypotenuse (diagonal).
[tex] {a}^{2} + {b}^{2} = {c}^{2} \\ {x}^{2} + {12}^{2} = {20}^{2} \\ {x}^{2} + 144 = 400 \\ \frac{ \: \: \: \: \: - 144 = - 144}{ {x}^{2} = \sqrt{256} } \\ x = 16[/tex]
three couples go to the movies and sit together in a row of six seats. In how many ways can they arrange themselves if each couple sits together?
Answer:
6
Step-by-step explanation:
im just gonna name these couples by numbers 1 , 2 and 3 and each couple will take up 2 seats together.
1 2 3
3 2 1
2 3 1
1 3 2
2 1 3
3 1 2
Answer:
6 ways
Step-by-step explanation:
1= couple 1
2= couple 2
3=couple 3
1 2 3
1 3 2
2 1 3
2 3 1
3 2 1
3 1 2
can somebody help me please.
The Y intercept is (0,275) and the X intercept is (125,0). the intercepts should be the point of when the line hits the axis'
HELPPPPPPPPPPPPPP FASTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT
out of 300 7th graders that use a computer 5-10 hours would be around 260 children. out of 360 seventh graders that use a computer 10 hours or less each week will be around 300
The original rectangle is 120 centimeters. Calculate the length of a rectangle that is 72% shorter.
What is the answer
Answer:
33.6 cm
Step-by-step explanation:
120 x 0.72 = 86.4
120 - 86.4 = 33.6
The new rectangle which is 72% shorter is 21.6 centimeters.
What is the percentage?A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.
Given The original rectangle is 120 centimeters.
And the new rectangle is 72% shorter or (100 - 72)% = 18% of the original rectangle which is,
= (18/100)×120 centimeters.
= 21.6 centimeters.
Learn more about percentages here :
https://brainly.com/question/24159063
#SPJ2
pls help me with this multiple choice ! thank u
Answer:
The answer will be C x=14 and y=7
Step-by-step explanation:
Hope this HElped
Which equation can be used to solve for the value
of x?
Answer:
the orange one
Step-by-step explanation:
the bottom angles are gonna be the same and a triangle is 180 degrees total so
Solve the simultaneous equations
5x + 3y = 41
2x + 3y = 20
Do not use trial and improvement
The solution to the system of equation is (7, 2)
Using the simultaneous equation:
5x + 3y = 41
2x + 3y = 20
using elimination method
Subtract equation 1 from 2 to have:
5x - 2x = 41 - 20
3x = 21
x = 21/3
x = 7
Substitute x = 7 into equation 1 to get y
5x + 3y = 41
5(7) + 3y = 41
35 + 3y = 41
5y = 41 - 35
3y = 6
y = 6/3
y = 2
Hence the solution to the system of equation is (7, 2)
Learn more here: https://brainly.com/question/15165519
Which of the following is true?
A. The mean is the least
B. The median is the least
C. The mode is the least
D. The mean, median, and mode are equal
Solve 5r + 7s = 15 for s
Answer:
Here it is:
:P
Answer:
s=15/7 - 5r/7
Step-by-step explanation:
need help with this please
Answer:
where is your question friend...
Which equation has the same solution as x2 + 4x – 13 = 5?
Answer:
x=4
Step-by-step explanation:
How much?Pls help me.
Answer:
19.8
Step-by-step explanation:
Answer:
$19.80
Step-by-step explanation:
56 text messages = 5.60
1 text message = 5.60 ÷ 56 = 0.1
198 text messages = 0.1 x 198 = 19.8
Two angles are supplements if their sum is 180 degrees. The measurement of
one angle is five more than six times its supplement. What is the measurement of
the smaller angle?
Find the angle measure that of each missing angle
Step-by-step explanation:
122+v=180
v=180-122
v=58
w+61=180
w=180-61
w=119
61+58+y=180
119+y=180
y=180-119
y=61
61+x=180
x=180-61
x=119
j=180
find the area of the largest circle help me out i will have points
Answer: 254.34 ^ 2
Step-by-step explanation:
To find the area of the circle use its formula
A = Pi * R^2 / Area equals pie times radius squared
The two circles diameter combined is 18 meaning the radius is 9
So we plug 9 into the formula
A = 3.14 * 9^2
A = 3.14 * 81
A = 254.34 ^ 2
A movie theater sell snacks to 30% of it's customer each day. On Saturday, 186 customers bought snacks. How many customers went to the theater on Saturday????
A. 242
B. 520
C. 558
D. 620
Answer:
620 or D
Step-by-step explanation:
Answer:
620/D I believe........
A rectangular prism has a volume of 160 cubic centimeters and a height of 4 centimeters. What is the area of its base?
8TH GRADE MATH HELP PLEASE
Answer:
55 is the answer hope it helps...
25 is what percent of 125?
40 is 25% of what number?
What number is 60% of 200?
Find 16% of 25
50 is ______% of 500
30 is 40% of what?
What is 140% of 20?
600 is 300% of what?
45% of the class is girls. There are 90 girls in the class. How many students are in the class?
40% of the voters voted for Jimmy B. 80 million people voted. How many votes did he get?
300 middle schooler’s vote on their favorite sport. 60 of them like hockey. What percentage of the students like hockey?
Answer:
1. 20%
2. 160
3. 120
4. 4
5. 10%
6. 75
7. 28
8. 200
9. 200 students
10. 32,000,000 votes (32 million)
11. 20%
Step-by-step explanation:
No clue if you want actual work shown but you posed so many questions that it would take forever to type out all the work.
[tex] \frac{5}{7} \times 6[/tex]
what is 5/7 x 6
Answer:
[tex]\frac{30}{7}[/tex]
Step-by-step explanation:
to multiply a number by a fraction, just multiply straight across
you just do 5 * 6 to get 30 and since there isn't anything under the 6, you put an imaginary 1 to get you 7 so your answer will be 30/7
What value do we need to complete the equation?
Answer:
h/2
Step-by-step explanation:
: Scottie is standing next to a lighthouse on the edge of a cliff overlooking the ocean. The cliff is 30 meters above sea level, and the lighthouse has a height of 15 meters. There is a man fishing in a boat directly below Scottie who has hooked a fish that is 10 meters below the surface of the water.
Complete question :
Scottie is standing next to a lighthouse on the edge of a cliff overlooking the ocean. The cliff is 30 meters above sea level, and the lighthouse has a height of 15 meters. There is a man fishing in a boat directly below Scottie who has hooked a fish that is 10 meters below the surface of the water.
a. Use positive and negative numbers to represent the locations in relation to sea level.
Scottie =
Top of the lighthouse =
The boat =
The fish =
b. How far is Scottie from the fish?
meters.
Answer:
Scottie = +30 m
Lighthouse = +45m
Boat = 0
Fish = - 10m
40 m
Step-by-step explanation:
Scottie = 30m ( height of the cliff) since he is standing on it's edge
Top of lighthouse = since, lighthouse is located on top of the cliff ; height of cliff + height of light house = (30 + 15) = 45m
The boat = 0 (on the surface of water) ; this is the sea level surface or point
The fish = - 10 m (10 meters below the water surface).
Distance between scottie and fish :
30 m - ( - 10m)
30m + 10m
= 40 m
how to calculate interest on a loan
Answer:
Gather information like your principal loan amount, interest rate and total number of months or years that you’ll be paying the loan.Calculate your total interest by using this formula: Principal Loan Amount x Interest Rate x Time (aka Number of Years in Term) = Interest.If you take out a five-year loan for $20,000 and the interest rate on the loan is 5 percent, the simple interest formula works as follows:
$20,000 x .05 x 5 = $5,000 in interest
You might encounter simple interest on short-term loans. However, the way most banks and lenders charge interest is more complicated.
Step-by-step explanation:
Find an equivalent ratio in simplest terms:
30 : 24
Answer:
5 : 4
Step-by-step explanation:
Given
30 : 24 ( divide both parts by 6 )
= 5 : 4 ← in simplest form
Answer:
5/4.
Step-by-step explanation:
1. Find the GCD (or HCF) of numerator and denominator. GCD of 30 and 24 is 6.
2. 30 ÷ 624 ÷ 6.
3. Reduced fraction: 54. Therefore, 30/24 simplified to lowest terms is 5/4.
- 11x - 19 = - 41
solve for x
Answer:
-11x -19 = -41
We need to add 19 to both sides then divide to find x.
_____________________
1)) so -11x -19 + 19 = -41 + 19
2)) -11x = -22
3)) -11x/-11 = -22/-11
x = 2
GL!
(side note, i dont usually ask, but it would be great if you could mark me brainliest so I can level up <33)
Answer:
x = 2
Step-by-step explanation:
-11x - 19 = -41
Add 19 to both sides of the equation:
-11x - 19 + 19 = -41 + 19
-11x = -22
Divide both sides by -11
-11x/-11 = -22/-11
x = 2