Answer:
Third option) y = -2/3x + 2
Step-by-step explanation:
It is parallel to 2x + 3y = 12
2. Candles normally cost £6 each.
Two websites have special offers:
Candles R Us has 20% off
Waxz has a special offer, buy 3 get 1 free
Laura wants to buy 30 candles
Which website should Laura use
Answer: candies are us has a better offer
Step-by-step explanation:
for the candies r us website, the price of the candies is 30*6 then times 0.8=$144
and for waxz, if you buy 3 get 1 free, then you at least have to buy 3 candies 9 times, and that would be 18*9 which equals 162, which is more expensive then waxz
hope this helps!
please make me brainliest! thanks!
Please help I’ll mark you as brainliest if correct !!
Answer:
A= 105 in^2
B= 50 in^3
Step-by-step explanation:
Surface area is the area of all sides added
Volume is LengthxWidthxHeight divided by three
Suppose that a nonzero constant b is added to every value of a generic sample dataset 1 2 3 { , , , , }n x x x x , to produce a new dataset 1 2 3 { , , , , } n x b x b x b x b . Provide a formal mathematical (i.e., algebraic) proof for what happens to the mean, variance, and standard deviation. (Hint: Think of the dotplot for informal motivation.)
Answer:
Step-by-step explanation:
Suppose there is the addition of a constant "b" to each generic dataset, then, new mean = old mean + b. This will affect the variance and the standard deviation of the resulting dataset to remain the same:
From the information given:
[tex]\mathbf{x_1,x_2,x_3...x_n \ have \ mean \ \overline x }[/tex]
Proof:
If c is added to each data set:
Then,
[tex]\mathbf{x_1+c,x_2+c,x_3+c...x_n+c \ and \ the \ new \ mean \ \overline x = \overline x + c}[/tex]
also;
[tex]\mathbf{New \ Sd^2 = \dfrac{(x_1+c -(\overline x+c))^2+ (x_2+c -(\overline x+c))^2 +...+ (x_3+c -(\overline x+c))^2}{n}}[/tex]
[tex]\mathbf{New \ Sd^2 = \dfrac{(x_1+c -\overline x+c)^2+ (x_2+c -\overline x+c)^2 +...+ (x_3+c -\overline x+c)^2}{n}}[/tex]
[tex]\mathbf{New \ Sd^2 = (x_1- \overline x)^2+ (x_2- \overline x)^2+ ... +(x_n- \overline x)^2}[/tex]
[tex]\mathbf{New \ Sd^2 = old \ sd^2}[/tex]
Bianca walks her dog everyday. She walks 0.6 mile on each weekday. On each weekend day, the walk is 1 1/2 times as long as a walk on a weekday. How many miles does Bianca walk in one week?
Answer: 4.8
Step-by-step explanation:0.6*5+0.6*1 1/2*2
For each ordered pair, determine whether it is a solution to y=-8
Answer:
that is the first one and the last one.
Step-by-step explanation:
we have to check which ones have negative eight as y values so that is the first one and the last one.
if my answer helps please mark as brainliest.
Solutions are the values of an equation where the values are substituted in the variables of the equation and make the equality in the equation true.
The ordered pair that is a solution to y = -8 are:
(5, -8) and (-7, -8).
What is a solution?
Solutions are the values of an equation where the values are substituted in the variables of the equation and make the equality in the equation true.
We have,
y = -8
We have the ordered pairs:
(5, -8), (-8, 9), (0, 6), and (-7, -8).
Now,
The solutions to y = -8.
y = -8 is a constant function.
This means,
Any value of x will give -8.
Now,
The ordered pair that is a solution to y = -8 are:
(5, -8) and (-7, -8).
Learn more about solutions to equations here:
https://brainly.com/question/545403
#SPJ2
This is really easy but I’m lazy
Answer:
D
Step-by-step explanation:
it does not matter which side you put the eight.
Rewrite the expression
as square of a monomial.
81x^6y^4
Answer:
[tex](9x^3y^2)^2[/tex]
Step-by-step explanation:
The expression, as a square of a monomial, will be given by:
[tex](\sqrt{81x^6y^4})^2[/tex]
Now, we calculate the root, applying it's properties. So
[tex]\sqrt{81x^6y^4} = \sqrt{81} \times \sqrt{x^6} \times \sqrt{y^4} = 9 \times x^{\frac{6}{2}} \times y^{\frac{4}{2}} = 9x^3y^2[/tex]
The expression as a square of a monomial is given by
[tex](9x^3y^2)^2[/tex]
The table shows the relationship between the number of brownies, fill in the missing value in the table.
Answer:
The answer is 25
Step-by-step explanation:
Which set of measurements could be the side lengths of a triangle?
A.2 cm, 8 cm, 12 cm
B.9 cm, 4 cm, 4 cm
C.13 cm, 7 cm, 4 cm
D.7 cm, 10 cm, 8 cm
16. (it’s a triangle)
x
x + 4
X-1
x + 2
what is x?
Answer:
im sorry i don't know the answer i just need to do this so that i can ask my question pls forgive me
Factor the expression:
9x(x^2 - 1) - 3(x^2 - 1)
Answer:
I love algebra anyways
The ans is in the picture with the steps how i got it
(hope this helps can i plz have brainlist :D hehe)
Step-by-step explanation:
What is the positive solution to the equation -22 – 3?
3
-1
-3
1
Please help
15pts
[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the quadratic equations.
Since, as the question told,
=>
[tex] \frac{ {x}^{2} }{3} - 3 = 0[/tex]
hence now solving we get as,
[tex] \frac{ {x}^{2} }{3 } = 3 [/tex]
now, we get as,
[tex] {x}^{2} = 9[/tex]
now, then
[tex] \sqrt{ {x}^{2} } = \sqrt{9} [/tex]
so finally, positive value of x is 3
The width of a rectangular room is 80%
of
its length. The length of the room is 15 feet.
What is the width of the room?
Answer:
12 feet
Step-by-step explanation:
Given: length = 15 feet, width = L x 80%
Unknown: width = ?
width = L x 80%
w = (15ft) x 80% or (15ft) x .80
w = 12 ft
Answer:
Formula of rectangle :-
l ×b
80/100 × 15 ×b
8/10 × 15 ×b
80/100 × 15 =b
8/10 ×15 =b
4/5 × 15 =b
4 × 3 = b
b = 12feet
b = 12 feet
52° 38° 128 xo degrees
Answer:
x = 142°
Step-by-step explanation:
Since angle x and the 38° angle are supplementary angles, we know that the following is true...
x + 38° = 180°
x = 180° - 38°
x = 142°
What is the midpoint of AB?
A
F
G H
B
-9-8-7-6
-5
-4 -3 -2 -1 0 1 2
3
4
5
02
7
8
9
O point F
point G
point H
O point 1
Answer:
87
Step-by-step explanation:
hijbgvyuhbgvfctygvibhujhgvcfturugvybhugyvuftcgvuhbj
If the volume of a rectangular prism is 1260 cubic feet and the length of the prism is 10 feet. What would be the measurement of the
area of the base?
Answer:
qawsexdcrfvtgbyhunjikijuhytg5r4r5gt6hyjuiko
Step-by-step explanation:
Answer:
126 ft
Step-by-step explanation:
V= (area of base) x length
So you work backward and do 1,260 divided by 10 and get 126
Help! I got 3 but it says its wrong. Anyone else have any answers that they solved for w/ proof?
Answer:
Your answer is indeed correct. f(-8) = 3
Step-by-step explanation:
[tex]f(x) = -x^{2} - 4x + 35\\f(-8) = -( -8)^{2} - 4(-8) + 35\\f(-8) = -64 + 32+ 35\\f(-8) = 3[/tex]
Can someone please help? I came up with 3/6.
Answer:
14/33
Step-by-step explanation:
Okay so first of all, we want to find the probability of picking that first purple marble. There are 8 purple marbles you can chose out of a possible 12 marbles, so the probability is 8/12, or 2/3.
Next, find the probability of finding the second purple marble. Since you took out one purple marble already, there are 7 purple marbles you could chose out of a possible 11 marbles, so the probability is 7/11.
To find out the probability of both of these events happening, you multiply these probabilities:
[tex]\frac{2}{3} * \frac{7}{11}\\\frac{2*7}{3*11} \\\frac{14}{33}[/tex]
What is the degree of this monomial? 20x
Answer:
1
Step-by-step explanation:
What is 1/3 divided by 1/2
Answer:
2/3
Step-by-step explanation:
[tex]\frac{1}{3} /\frac{1}{2} = \frac{1}{3} * \frac{2}{1} = 2/3[/tex]
what is the answer what is the answer answer anwser
Answer:
Z
Step-by-step explanation:
40/5 has a whole numbe
Answer:
Yes 40/5 is 8
Step-by-step explanation:
40/5=8
what Is the answer to 7ft +4ft + 10ft
Answer:
it is 21ft
Step-by-step explanation:
Answer:
21 Ft
Step-by-step explanation:
7ft +4ft + 10ft
7+4 = 11
11 + 10 = 21
21 Ft
A pair of noise-canceling headphones regularly sells for $116. They
are on sale for 35% off. What is the sale price of the headphones?
Answer:
The headphones are now $40.60.
please help asap!!!!!
Answer:
the area = 25
Step-by-step explanation:
a= side length x side length
a = 5 x 5
a = 25
Please help ASAP!!
Need answers to question a, b and c
Which of the following is most likely the next step in the series?
The area of a rectangle is 3x 2- 4x - 15 ft 2 Find the length and width of the rectangle. (In other words, just factor it to find each dimension.)
Answer:
(3x+5)(x−3)
Step-by-step explanation:
explain how you can use fractions strips or number lines to show that 3/4 and 6/8 are equivalent.
Answer:
answers is down there
Step-by-step explanation:
you can use fraction strips by using them 3/4 and 6/8 because they are equivalent and that's just life :)
3/4 and 6/8 are equivalent numbers/fractions
The fractions are given as:
[tex]\frac 34[/tex] and [tex]\frac 68[/tex]
To model 3/4 using number lines, we do the following steps
Draw a straight lineDivide into 4 equal segmentsPut a mark at the end of the 3rd pointTo model 6/8 using number lines, we do the following steps
Draw a straight lineDivide into 6 equal segmentsPut a mark at the end of the 6th pointWhen both points are compared, then we find out that:
[tex]\frac 34 \equiv \frac 68[/tex]
Hence, 3/4 and 6/8 are equivalent
Read more about number lines at:
https://brainly.com/question/10851163
A student measured the numbers of stomata per mm of leaf
surface. Their counts were: 250, 280, 265, 245, 270, 255, 290.
Calculate the mean number of stomata (to 3 significant
figures).
Answer:
When we have a set of N numbers like:
{x₁, x₂, ..., xₙ}
The mean of the set is:
M = (x₁ + x₂ + ... + xₙ)/N
In this case, we have the set:
{250, 280, 265, 245, 270, 255, 290}
So we have a set of 7 elements.
The mean of this set will be:
M = (250 + 280 + 265 + 245 + 270 + 255 + 290)/7 = 1855/7 = 265
So the mean number of stomata per mm of leaf surface is 265.