Answer:
B
Step-by-step explanation:
Answer:
Answer is B
Step-by-step explanation:
Pour teacher has disabled instant marking. Your marks will appear after the due date.
y is inversely proportional to x.
When y = 7, x = 9
a) Work out an equation connecting y and x.
b) Work out the value of y when x = 21.
How do i find k?
Answer:
a) y = 63/x
b) y = 3
Step-by-step explanation:
Inverse proportionality between two variables means that if one of them increases, then the other one decreases.
These type of relationships can be written as:
y = k/x
Now we know that when y =7, x = 9
Then we can replace these two values and find the value of k.
7 =k/9
7*9 = k
63 = k
The our relationship is:
y = 63/x
This is the solution to a).
Now let's go with b)
We want to find the value of y when x = 21. then we just need to replace x by 21 in the equation "y = 63/x"
We will get:
y = 63/21 = 3
When x = 21, y is equal to 3.
Solve for x
4 - ( 2x - 2) + 3x = 4(x + 5) - 3(x-2)-10
Step-by-step explanation:
4 + x + 3x = 4 ( 5x ) - 3 ( x ) - 10
4 + x + 3x = 4 + 5x - 3 + x - 10
x + 3x + 5x + x = 4 + 4 - 3 - 10
10x = 21
10x % 10 = 21 % 10
x = 2,1
Can someone plssssss help me I need help on what is 2/7 divide by 7/8
Answer:
Answer is 0.3265
Step-by-step explanation:
I hope it's helpful!
A radius of a circle is perpendicular to a chord if and only if it
A. is equal in length to that chord
B. parallels that chord
C. bisects that chord
D. intersects the chord directly on the circumference
Answer:
C. bisects that chord
Step-by-step explanation:
The radius of a circle is perpendicular to a chord if and only if it bisects the chord. Therefore, the option b is correct.
Radius of the circle:In the case when the diameter or the radius should be perpendicular with respect to the chord so it should be bisected the chord also its arc.
At the time when the two chords should be congruent so their corresponding arc should also be congruent.
Therefore, the option b is correct.
Learn more about circle here: https://brainly.com/question/3401487
A service station sells gasoline for $3.25 per gallon
and diesel fuel for $3.00 per gallon. On Monday, the
service station's revenue from selling a total of 131
gallons of gasoline and diesel fuel was $404.25. How
many gallons of diesel fuel did the service station sell
on Monday? Show your work
A) 35
B) 55
C) 76
D) 86
Answer:
86
Step-by-step explanation:
86 x 3 + 45 x 3.25 = ? If it equals 404.25 than the answer is 86
76 x 3 + 55 x 3.25 = ? If it equals 404.25 than the answer is 76
55 x 3 + 76 x 3.25 = ? If it equals 404.25 than the answer is 55
35 x 3 + 96 x 3.25 = ? If it equals 404.25 than the answer is 35
The number you multiply by 3 is the answer.
86 x 3 + 45 x 3.25 = 404.25
Can i have brainleist i did all this?
Provide
an appropriate response.
9) knight may win a tournament. He may also fail to win the love of his lady. Are these events
overlapping? Why or why not?
A) Yes, because not all ladies love all winners
B) No, because all ladies love all winners
C) Yes, because some ladies love winners
No, because not all ladies love all winners
Simplify: ( x² − 3) ( x + 2) + 6 *
Answer:
x(x + 3)(x - 1)
Step by Step :::
= (x² - 3)(x + 2) + 6
= x(x² - 3) + 2(x² - 3) + 6
= x³ - 3x + 2x² - 6 + 6
= x³ + 2x² - 3x
= x(x² + 2x - 3)
= x(x² + 3x - x - 3)
= x{x(x + 3) - 1(x + 3)}
= x(x + 3)(x - 1)
Jesse has a ribbon that is 12 4.6 yards long. He wants to cut it into pieces that are 1.4 yards long. How many 1.4 yard pieces will he get from the ribbon? will mark brainliest if you mark one here you will be reported just to get the points
Answer:
89 pieces
Step-by-step explanation:
124.6/ 1.4 = 89 pieces
Please help. Image below.
Answer:
a) 78
b) 1275.....
Step-by-step explanation:
.............
Can someone help? Image below.
Answer:
i dont kniw
Step-by-step explanation:
Answer:
x=2
Step-by-step explanation:
there is a scale factor of 2
A bag has 30 towels numbered 1 to 30. What's the ratio for odds to evens?
Graph the equation
y = -x + 3
Answer:
Step-by-step explanation:
can somebody help me please
please help i have no clue how to solve
Answer:
im sorry i dnt know i try doing these things on my own but i cant lol :(
Step-by-step explanation:
Answer:
1. doesn't
2. satisfy
Step-by-step explanation:
A train leaves at 09.46 and arrives at its destination at 10.34.
If the train travelled 74 km, what was it's average speed in km/h?
Give your answer rounded to 1 dp.
Answer:
92.5km/h
your welcome
pls help me with this multiple choice!!
Answer:
The answer will be B x=36 and y=18
Step-by-step explanation:
Hope this Helped
which is greater 0.49 or 94%
Answer:
94% as per as I can think.
(29 points!!!)Enter the correct answer.
in the rectangle ABCD, BD =96. What is the length of ED?
Diagram not drawn to scale.
Numeric answer only Do NOT include units (degrees, inches, feet, etc).
Answer:
48
Step-by-step explanation:
Do 96/2=48
HELP WHAT IS THE SLOPE!!!!!
Write the following number in exponential from. 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2
Answer:
2^8
Step-by-step explanation:
Please Hurry!!!!
Patricia can draw 1/5 a page of his drawing book in 1/3 of an hour. Express this as a unit rate.
Answer:
0.6 pages per hour
can you help me graph -3y<2x+9
Answer:
Step-by-step explanation:
Can you simply these fractions?
Answer:
2/7
3/4
2/3
1/2
1/10
5/7
3/8
1/9
2/5
1/5
7) 4r^2- 12r + 5=0 in quadratic form
Answer:
(2r-1)(2r-5)
Step-by-step explanation:
4r^2-10r-2r+5=0
2r(2r-5)-(2r-5)
(2r-1)(2r-5)
(Please help)There are 16 cups in a gallon. The equation g = 1/16c gives the number of gallons in terms of the number of cups. Write another equation for this situation, giving the
number of cups in terms of the number of gallons:
C=
Answer:
c = 16g
Step-by-step explanation:
g = 1/16 c
Multiply both sides by 16.
16g = c
c = 16g
Answer:
c = 16g
Step-by-step explanation:
g=1/16c
This is an algebric equation that requires you to multiply both sides by 16.
g × 16 = 1/16c × 16
16g = c
She buys an iPhone for $700. What is Macey’s account balance now?
Answer:
-$700
Step-by-step explanation:
Since there was no question, this is what I came to.
5. Marcy's breakfast table has a square top with an area of 36 square feet. 1 point
What is the diagonal length of the table top?
O A 127
O B.9
C.6
O 0.8.5
A horizontal translation is used to move quadrilateral WXYZ onto quadrilateral
W′X′Y′Z′.
Use the drop-down menus to describe the horizontal translation used.
Quadrilateral W X Y Z is translated -10 units to the x axis
Or
Quadrilateral W X Y Z is translated 10 units to the -x axis
Answer:
10, left
Step-by-step explanation:
Write an exponential function whose graph passes through the points (0,-2) and (2,-50)
Answer:
first sub in (0,-2) to get
-2 = ab^0, but b^0 = 1
so a=-2
so far we have
y = -2b^x
now use the other point (2,-50)
-50 = -2(b^2)
b^2 = 25
b= ±5
however in exponentional equations the base is usually positve, so now you have
y = -2(5^x)
sub in x=-2 and you got it.
Step-by-step explanation:
hope it helps..
Factor.
x^2−4x+4
plz help
Answer:
(x-2) 2
Step-by-step explanation:
Answer:
We see that the equation: x^2 - 4x + 4 is a perfect square trinomial as it is in the form of a^2 + 2ab + b^2, meaning that it is the square of a binomial. In this case, we see that we can multiply (x-2) with itself to obtain x^2 - 4x +4.
So the factored form is : (x-2)^2, or (x-2)(x-2)
We can check this by multiplying this out, and we obtain the same trinomial.
x^2-2x-2x+4
x^2-4x+4
Let me know if this helps!