Answer:
109.5 i hope this helps tell me if its right
Section A has 80 marks Section B has 120 marks.
Riya scores
55% in Section A 70% in Section B.
To pass, Riya needs to score 65% of the total marks.
Does she pass? You must show your working.
Answer:
Riya does not pass
Step-by-step explanation:
From the question:
Section A has 80 marks
Section B has 120 marks.
The total marks from both sections = 200 marks
To pass, Riya needs to score 65% of the total marks.
Hence: 65% of 200 marks
= 65/100 × 200
= 130 marks.
To pass Riya must score 130 marks.
Riya scores:
For section A
55% in Section A
Her marks in section A = 55% × 80
= 55/100 × 80
= 44 marks
For section B
70% in Section B.
Her marks in section A = 70% × 120
= 70/100 × 120
= 84 marks
Therefore , the total marks Riya scored in both sections =
44 marks + 84 marks
= 128 marks
Riya scored a total of 128 marks. SHE DOES NOT PASS. Because the pass mark is a total of 130 marks from Section A and Section B
Given a sphere with a radius of 3cm, find its volume to the nearest whole number.
Answer:
V≈113.1cm³ radius = 3 cm
Step-by-step explanation:
Answer:
v=113.1cm^3
Step-by-step explanation:
2x^4=50 solve by factoring
Answer:
2(x4 − 25) = 0
Step-by-step explanation:
Please help this is my last question
Please don't put a random answer just for points
zoom in to see picture clearer ty^^
3a² - 24ab + 48b² = 3 ( a - 4b )²
Step-by-step explanation:We will start by rewriting the given quadratic polynomial,
3a² - 24ab + 48b²
Taking out the common "3",
=> 3 ( a² - 8ab + 16b² )
Splitting the middle term i.e. " - 8ab " appropriately,
=> 3 ( a² - 4ab - 4ab + 16b² )
=> 3 [ a ( a - 4b ) - 4b ( a + 4b ) ]
=> 3 ( a - 4b ) ( a - 4b )
Hence, option C is correct.
Answer:
[tex]\huge\boxed{\tt{ 3 (a-4b)(a-4b)}}[/tex]
Step-by-step explanation:
[tex]\sf 3a^2-24ab+48b^2\\\\Taking \ 3 \ as \ common\\\\= 3 (a^2-8ab+16b^2)\\\\= 3 [(a)^2 - 2 (a)(4) + (4b)^2]\\\\Using \ Formula \ a^2 - 2ab + b^2 = (a-b)^2\\\\= 3 (a-4b)^2\\\\= 3 (a-4b)(a-4b)\\\\\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Solve for b. ab + c = d
Answer:
ab+c=d
-c
ab=d-c
/a
b=d-c/a
Step-by-step explanation:
Which of the following statements about JK and JL is true? 13 12 10 5 L(7.4) K(-4,2) 2 J(2, 1) 1 2 3 4 5 6 7 -7-6-5-4-3-2-1 O A. JL is longer than JK. O B. JK is 7 units long. O C. JK and JL are the same length. D. JK is longer than JL.
Answer:
I think It´s C
Step-by-step explanation:
BC = 36; D = 15. What is the value of BD - AC.
B
A
BD - AC =
Answer:
BD - AC = 0
Step-by-step explanation:
Given that:
BC = 36 , CD = 15 and BD = x
As these are forming right angled triangle,
Using Pythagorean theorem,
[tex](BD)^2+(CD)^2=x^2\\(36)^2+(15)^2 = x^2\\1296 + 225 = x^2\\1521 = x^2\\[/tex]
Taking square root on both sides
[tex]\sqrt{x^2}=\sqrt{1521}\\x=39[/tex]
As the given shape is rectangular, the sides parallel to each other will have same values.
AB = 15 , AD = 36 and AC = x
[tex](15)^2+(36)^2 = x^2 \\225 + 1296 = x^2 \\1521 = x^2 \\x = 39[/tex]
Now,
BD - AC = 39 - 39 = 0
Hence,
BD - AC = 0
x+10,-8x -9y=-1Solve using substitution
Answer:
x +10 =0 (1)
-8x -9y=1 (2)
x=-10 => (2) 80-9y=1 =>y=9
=> x=-10, y=9
Step-by-step explanation:
Suppose ADEF is the image of a translation of AABC. If D is at (-6, -2), what translation rule maps 4ABC to ADEF?
Answer: D. T <-9, -2> (ΔABC) = ΔDEF
Step-by-step explanation:
D = A
A (3, 0) --> D (-6, -2)
To get the x-coordinate of D, you add -9 to 3
To get the y-coordinate of D, you add -2 to 0
T <-9, -2> (ΔABC) = ΔDEF
Hope this helped!
i will give branlyest for the first person to answer it
Answer:c
Step-by-step explanations: you have to change the subtraction to addition which changes your negative to a positive so then you add those two together
A pole casts a shadow that is 21 feet long. A 3-feet-tall child standing next to the pole casts a shadow that is 9 feet long. How tall is the pole?
easy algebra 1 & it's worth 65 points!! marking brainliest!! PLS HELP
pls show ur work
1) solve the following system of equation using the elimination method. show all steps clearly to demonstrate ur understanding of the method. show your work.
-4x+9y=9
x-3y=-6
2) solve the following system of equations using the substitution method. show all steps clearly to demonstrate your understanding of the method. show your work.
x+3y=1
-3x-3y=-15
Answer:
Step-by-step explanation:
cc
please help me out 1 question bellow about angles ty
Alina bought groceries that cost a total of $45.00. What is a 13% tax for that total?
please open the file and answer it, i need a answer today
Answer:
541.1 square feet
Step-by-step explanation:
A = πr²
1) convert in. to ft because answer is in sq. ft
78 in => 6.5 ft
2) Find radius of entire area
6.5 ft + radius of inner circle
6.5 + 10 = 16.5
3) Calculate area of combined circles
A = π(16.5)²
A = 855.3 sq. ft
4) Find area of inner circle
A = π(10)²
A = 314.2 sq. ft
5) Subtract area of inner circle from combined area
855.3 sq ft - 314.2 sq. ft = 541.1 sq. ft
Factorise x² - x with explanation please?
Answer:
x(x + 1)
Step-by-step explanation: This is an important way of solving quadratic equations. The first step of factorising an expression is to 'take out' any common factors which the terms have. So if you were asked to factorise x² + x, since x goes into both terms, you would write x(x + 1)
1. Find the equation of a line that is perpendicular to
y=-2/3+4 and goes through (0,5)
Answer:
Step-by-step explanation:
It says perpendicular, which means if you graphed the line given and the one you have to make, they would intersect at a right angle. I'm going to presume the x is after -2/3 since you didn't put one in, I hope that's correct.
The first part to solving problems like these is to invert the slope, which just means you have to switch the sign on it (negative to positive/positive to negative) and switch the numerator and denominator. This makes the new slope 3/2.
The next step is to find the y-intercept, which they thankfully gave you in this problem (when x=0 the y-value is always the y intercept), but you'll usually have to find it.
The equation is y=3/2x+5. You should double check this, I'm good at math but it's been a bit.
A total of 513 tickets were sold for the school play. They were either adult tickets or student tickets. There were 63 more
student tickets sold than adult tickets. How many adult tickets were sold?
HELP FOR THE LOVE OF JESUS HELP ME IF YOU LOVE JESUS OR ANY GOD YOU BELIEVE PLEASE HELP
Answer:
28
Step-by-step explanation:
24/6=4
11-4=7
4(7)=28
I hope this helps..
your answer would be a. 28
2. Subtract: 7 - 2.5
1
o
5
O
5.5
5.0
4
The number 299 is divided into two parts in
the ratio 5:8. The product of the numbers
(A) 21140
(C) 21160
(B) 21294
(D) 31294
In his last football game, Sean rushed for 89 yards. If his season total is 871 yards, how many total yards did he have prior to his last game?
Answer:
782
Step-by-step explanation:
Since it's asking for the before game miles youd have to take he total yards.
(871)
The you wanna take the total yards ran from that one game.
(89)
Then just subtract by the number of yards total and the number of yards ran in that one game.
871-89=782
Please shows step by step if possible for I can understand this.
Answer:
f(4)=52
Step-by-step explanation:
First, you substitute the x's with 4, so it would be
f=3*4^2+2*4-4
f=48+8-4
f=52
Hope this helps
For a quadratic function where the vertex is at (-5,7), where is the axis or line of symmetry
located??
Answer:
-5
Step-by-step explanation:
The axis of symmetry is the x- axis of the vetex.
Find an ordered pair that satisfies the function y = 3x - 10.
Answer:
Step-by-step explanation:
Choose 0 to substitute in for x to find the ordered pair. Remove parentheses. Simplify 3(0)−10 3 ( 0 ) - 10 .
There are 10 water birds swimming in a pond. If
there are 6 ducks and 4 geese at the pond, what
fraction of the birds are geese?
Simplify your answer as much as you can.
Answer:
2/5
Step-by-step explanation:
Total water birds=10
ducks=6
geese=4
fraction of geese=4/10
=2/5
which of the following is a function ?
Answer:
You didn;t give any choices??
Step-by-step explanation:
PLEASE I NEEEED HELPPPPP ASAP LOOK AT THE PICTURE
Answer:
on product side there will also 6 carbon atom
PLZ HELP THERS WAY MORE SORRYJUST CLICK AND SEE
Answer:
A
Step-by-step explanation:
ueid8duenofbenxochikwbdicv
please help me with this fast, because i don't understand it
Answer:
3/4
Step-by-step explanation:
f(0) - f(3) / 0 - 3
f(0) = -4
f(3) = 9/4 - 16/4 = -7/4
f(0) - f(3) = [-4 - (-7/4)]
f(0) - f(3) = [-16/4 + 7/4]
f(0) - f(3) = -9/4
-9/4 ÷ -3 = -9/4 · -1/3 = 3/4