Answer:
y=20
Step-by-step explanation:
expand bracket
3y-18=42 add 18
3y=60 divide by 3
y=20
a lecturer wants to divide a class of 18 students into 3 groups, each of 6 students, to do 3 different statistical projects.
(a) If there are 3 girls in the class, find the number of ways that there is one girl in each group
PLS HELPPPP
Answer:
The lecturer has to divide the class into 3 groups of 6 which have 1 girl in each group to have 1 girl in each class.(sry if this sounds a little akward didn't have enough time to type this answer out).
helpppp
what is the equation of the graph below?
Answer:
answer is [tex]y=-(x-3)^{2} +2[/tex]
Step-by-step explanation:
I just graphed each 'solution' on desmos lol :p
What value(s) for n will make this expression true?|n| = 3. 5
Answer:
The answer is option 4.
Step-by-step explanation:
As there is a Modulus sign so the answer will be always positive.
e.g
|1.2| = 1.2
|-5.6| = 5.6 (always interested in the positive value)
Step-by-step explanation:
For which of the following scatterplots is the correlation between x and y closest to −1 ?
Answer:
Scatter plot attached below.
Step-by-step explanation:
The correlation coefficient is a statistical degree that computes the strength of the linear relationship amid the relative movements of the two variables (i.e. dependent and independent).It ranges from -1 to +1.
If there is any alteration in the value of one variable, the value of the other variable is altered in a fixed proportion. The correlation amid them is known as perfect correlation.
In statistics, a perfect positive correlation is represented by +1 and -1 indicates a perfect negative correlation.
Negative correlation is a relationship amid two variables in which one variable rises as the other falls, and vice versa.
The scatter plot for the correlation between x and y closest to −1 is attached below.
use your graphing calculator to solve the equation graphically in the interval [4,7]
x^3 -4.6x^2 -7.03x = -20.332
make sure your answer is accurate to atleast three decimals
Answer:
x = 5.200
Step-by-step explanation:
Given equation is,
x³ - 4.6x² - 7.03x = -20.332
x³ - 4.6x² - 7.3x + 20.332 = 0
By graphing this equation with the help of a graphing calculator,
Solutions of the equation are the points where y = 0.
In other words, x intercepts are the solutions.
Solutions for the given equation are,
x = -2.3, 1.7 and 5.2
Therefore, solution for the given equation in the interval [4, 7] is x = 5.200
Write as an improper fraction 7 2/5
Answer:
37/5
Step-by-step explanation:
DONT ANSWER IF YOU DONT KNOW
A gym membership is offered in January for $39.00 per month. If you pay upfront for the year, you are given a 25% discount on the monthly cost. How much money do you save after a year by paying upfront rather than monthly?
Answer: $351
Step-by-step explanation:
We need to setup two equations:
If you're taking the monthly cost: y = 468x, where x is the number of months.
If you're paying upfront: y = 12(0.25(39))x = 117x, where x is the number of years
So in one year, you will save (468-117) = $351 by paying upfront.
NEED ANSWER ASAP!! 25 POINTS! PLS HELP!! a triangular prism has a base that is 10cm2. its height is 8cm. what is the volume?
A. 800 cm3
B. 640 cm3
C. 80 cm3
D. 40 cm3
Answer:
C. 80cm³
Step-by-step explanation:
Solution,
Given,
Height = 8cm
Base Area = 10cm²
Now,
Volume = Area ( Base ) × Height
= 10 × 8
= 80cm³
Answer: 80 cm
Step-by-step explanation: GIVE THAT PERSON WHO ANSWERED FIRST BRAINLIEST :DDDD
PLEASE HELP I WILL MARK AS BRAINLIEST!!! HELP PLEASE!!!!!
Answer:
The answer would be x=7
help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!???????????!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Step-by-step explanation:
m<ARL and m<LRB together equal 180 degress.
x=37.4
So 2(37.4)-5 is
m<LRB=69.8
PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
so sar were gonna reread the question than what ever the voulme is for I you put in in there
Step-by-step explanation:
6xI=192
I=32
Which cream cheese has the lowest price per ounce?
$5. 29 for 14 oz
$2. 59 for 6 oz
$4. 29 for 12 oz
$2. 89 for 8 oz
Answer:
C
Step-by-step explanation:
$4.29 for 12 oz
12 = 4.29
1 = ?
? = (1 * 4.29)/12 = 4.29/12 = 0.3575 is the lowest amongst others
5.29/14 = 0.3779
2.59/6 = 0.4317
2.89/8 = 0.3612
In preparation for a conference, Derek is setting up some stations where people can create their own name tags. He has 10 name tags and 18 pens, which he wants to distribute evenly among the name tag stations with none left over. What is the greatest number of name tag stations that Derek can set up?
Answer:
2
Step-by-step explanation:
Given that:
Number of name tags = 10
Number of pens = 18
to distribute evenly among the name tag stations with none left over ; we need to obtain the greatest common factors of both 10 and 18 to know the number of stations Derek can set up ;
Factors of :
10 : 1, 2, 5, 10
18 : 1, 2, 3, 6, 9, 18
The greatest common factor is 2.
Hence, Derek can setup 2 stations.
Saqui buys streamers for 0.09 per meter.
What is the price, in dollars, of 300 centimeters of streamers?
There are 100 centimeters in a meter.
Choose 1 answer:
(Choice A)
A
$0.03
(Choice B)
B
$0.27
(Choice C)
C
$27
Answer:
B. $0.27
Step-by-step explanation:
300 centimeters is 3 meters
So, no we just multiply the number of meters by the price (0.09)
0.09 X 3 = 0.27
So, the answer is B, $0.27
300 cm of streamers
0.09 per m
1 m= 100 cm
to find:the price in dollars of 300 centimeters of streamers.
solution:[tex]300cm = 3m[/tex]
[tex]price = 3 \times 0.09[/tex]
[tex] = 0.27[/tex]
therefore, the price of 300 cm of streamers is $0.27.
answer= option B
find the product of the given polynomial if p(X)=2x-3 and g(X)=6x+4
Answer:
Given,
p (x)=2x-3
g (x)=6x+4
p (x)×g (x)=?
Step-by-step explanation:
p (x)×g (x)=(2x-3)(6x+4)
=2x (6x+4)-3 (6x+4)
=12x^2+8x-18x-12
=12x^2-10x-12
a graphic designer is making a logo using rectangles with a height-to-width ratio of 4 : 5. Write an equation that can be used to find the height of the rectangles when the width is known
The equation that can be used to find the height of the rectangles when the width is known is h = P - 4
How to find the perimeter of the rectangleperimeter of rectangle = 2(l + h)
P(l, h) = 2(l + h)
Since the perimeter = 2(4+5) = 18, then;
18 = 2(4 + h)
9 = 4 + h
h = 9 - 4
h = P - 4
Hence the equation that can be used to find the height of the rectangles when the width is known is h = P - 4
Learn more on rectangles here: https://brainly.com/question/25292087
Consider the quadratic equation below.
-2x^2 - 11x + 7 = 10 + 4x
Determine the correct set-up for solving the equation using the quadratic formula. 50 POINTS PLS HELP
Answer:
[tex]x=\dfrac{-(-15)\pm\sqrt{(-15)^2-4(-2)(-3)} }{2(-2)}[/tex]
Step-by-step explanation:
Given equation: [tex]-2x^2 - 11x + 7 = 10 + 4x[/tex]
First, rearrange the equation so that it is in the general form of [tex]ax^2+bx+c=0[/tex]
[tex]-2x^2 - 11x + 7 = 10 + 4x[/tex]
Subtract 4x from both sides:
[tex]-2x^2 - 15x + 7 = 10[/tex]
Subtract 10 from both sides:
[tex]-2x^2 - 15x - 3 = 0[/tex]
Therefore,
[tex]a=-2[/tex][tex]b=-15[/tex][tex]c=-3[/tex]Input these values into the quadratic formula:
[tex]x=\dfrac{-b\pm\sqrt{b^2-4ac} }{2a}[/tex]
Therefore,
[tex]x=\dfrac{-(-15)\pm\sqrt{(-15)^2-4(-2)(-3)} }{2(-2)}[/tex]
System of equations! I need a good word problem and explanation :)
Answer:
Lia was needing to buy different types of fruit, kiwis and bananas for a smoothie recipe. Kiwis cost 4 dollars per fruit and the bananas cost 8 dollars per bunch. she only needs 1 bunch of bananas, but has 20 dollars total. How many kiwis can she buy?
4x + 8 = 20
4x = 12
x = 3
Have a wonderful day!!
Please rate and mark brainliest!!!
Find the slope of the equation that goes through:
(-4,-14) and (-10,6)
Hello.
In order to find the slope of the given line, we should use the slope formula:
[tex]\mathrm{\displaystyle\frac{y2-y1}{x2-x1}}[/tex]
y₂= the y-coordinate of the second point (6
y₁= the y-coordinate of the first point (-14)
x₂=the x-coordinate of the second point (-10)
x₁=the x-coordinate of the first point (-4)
Let's plug in the values and solve:
[tex]\mathrm{\displaystyle\frac{6-(-14)}{-10-(-4)}=\frac{6+14}{-10+4} =\frac{20}{-6} =-\frac{20}{6} =-\frac{10}{3} }[/tex]
Answer:
[tex]\Large\boxed{\sf{\displaystyle-\frac{10}{3} }}[/tex]
I hope it helps.
Have a nice day.
[tex]\boxed{imperturbability}[/tex]
A ball is thrown horizontally from the top of
a building 110 m high. The ball strikes the
ground 61 m horizontally from the point of
release.
What is the speed of the ball just before it
strikes the ground?
Answer in units of m/s
The speed of the ball would be 13 m/s just before it strikes the ground.
A ball is thrown horizontally from the top of a 110 m high building. 61 meters horizontally from the moment of release, the ball falls on the earth.
What is the velocity?Velocity is defined as the displacement of the object in a given amount of time and is referred to as velocity.
First of all, we get the time of aviation from the vertical component:
Here s = 110 m and g = 9.8 m/s²
s = 1/2 × gt²
Solve for t
t = √(2s/g)
Substitute the values of s = 110 m and g = 9.8 m/s² in the equation,
t = √(2×110/9.8)
t = √22.44
t = 4.7 sec
The horizontal component of velocity is constant :
v = s/t
Here s = 61 m and t = 4.7 sec
v = 61/4.7
v = 12.97 ≈ 13
Therefore, the speed of the ball would be 13 m/s just before it strikes the ground.
Learn more about Velocity here:
https://brainly.com/question/12904979
#SPJ2
A plane flies 35 km in the direction N 30° W, then flies 60 km in the direction N 60° E. How far is the plane from its original location? 29. 64 km 58. 21 km 69. 46 km 93. 66 km.
Check the picture below.
Does anyone know this?
Diameter of largest circle = 4 cm + 12 cm = 16 cm
Radius = 16 cm / 2 = 8 cm
Area = 3.14 * (8 cm)² = 200.96 cm²
Brooke and Aria ran a half marathon. Brooke finished in 1 hour 55 minutes.
Aria finished in 105 minutes. Who had the faster time?
Answer:
aria
Step-by-step explanation:
105min=1 hour and 45 min
Step-by-step explanation:
Brooke and Aria ran a half marathon. Brooke finished in 1 hour 55 minutes. Aria finished in 125 minutes. who had the faster time. ANSWER IS BROOK 1 hr 55 minutes Aria 125 minute=2 hrs in case question is worded differently Edmentum
If a chicken lays 16 eggs every 40 days, what is the average number of eggs she lays per day?
Answer:
40 / 16 = 2.5
Step-by-step explanation: ur telling me this is highschool math? lol. im in middle school but took this stuff in third grade.
Answer:
2.5 eggs per day
Step-by-step explanation:
PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS ASAP
Answer:
Third option: (0, 7)
Step-by-step explanation:
A reflection can be thought of as folding or "flipping" an object over the line of reflection.
• The original object is called the pre-image, and the reflection is called the image.
• The image is usually labeled using a prime symbol, such as A'B'C'.
• An object and its reflection have the same shape and size, but the figures face in opposite directions. The objects appear as if they are mirror reflections, with right and left reversed.
When you reflect a point across the x-axis, the x-coordinate remains the same, but the y-coordinate is transformed into its opposite (its sign is changed).
Label the points for the pre image:
Pre image
Point A: (0, -2)
Point B: (3, -7)
Point C: (0, -7)
And now we change the y-coordinates in the points into their opposites:
When reflected over the x-axis:
Ponit A (0, -2) changes to A' (0, 2)
Point B (3, -7) changes to B' (3, 7)
Point C (0, -7) changes to C' (0, 7)
New image:
A' (0, 2)
B' (3, 7)
C' (0, 7)
So the new image for vertex C, would be:
Third option: (0, 7)
Look at the both of the graphs:
I will mark brainliest for the first person to answer my question
The whole angle = the sum of the parts
80 = 43 + x
OR
x = 80 - 43
Hope this helps!
kathryn goes 12mph when she ride her bike. How far does she go in 25 minutes?
Answer: 5 miles
Step-by-step explanation:
25 minutes is 25/60 hrs
If Kathryn is going 12 miles in one hour, she will go 12 x 25/60 = 5 miles in 25 minutes
it says to evaluate and reduce, i can't find the answer
Answer:
[tex]\frac{28}{3}[/tex]
Step-by-step explanation:
When dividing fractions, we must always remember a very important step:
we can multiply the two fractions instead of divide as long as the second fraction must be flipped opposite as a reciprocal.
Let me explain:
When given a simple problem like [tex]\frac{1}{2}[/tex] ÷ [tex]\frac{2}{3}[/tex] , we flip the second fraction (called reciprocal) and multiply it together instead.
[tex]\frac{1}{2} * \frac{3}{2}[/tex]
There, we can just multiply the numerators with each other and the denominators as each other.
1x3=3
2x2=4
Therefore, the answer will be [tex]\frac{3}{4}[/tex].
Similar in this case, we must flip the second fraction and pretend we never even saw a division sign (because who likes dividing anyways?)
[tex]\frac{35}{5}[/tex] ÷ [tex]\frac{-3}{4}[/tex] flip and multiply reciprocal
[tex]\frac{35}{5} * \frac{-4}{3}[/tex]
[tex]\frac{140}{15}[/tex] simplify
[tex]\frac{28}{3}[/tex] final answer!
If there are 1,400 costumers in a given week, how many would you expect to prefer chocolate strawberry or vert berry mix?
Answer:
770 customers
Step-by-step explanation:
Oooh I love these types of questions!
First we should add all of the numbers to find the total number of people so we can set up a proportion later.
70+36+46+40+8=200
Now that we've found the total, we need to find chocolate strawberry and vert berry, because the wording "or" would mean either. If the wording said "and" we would not have enough information to solve that.
Chocolate Strawberry is 70, and Very Berry is 40. Add that to get 110.
Now we have our needed numbers to make a proportion! This is because for each 200 people, we know that they'd want 110 Chocolate Strawberry or Very Berry.
So we would need to make a proportion for 1400.
110/200=x/1400
Cross multiply (or do that trick where you divide 1400 by 200 and then multiply 110 by that number, but cross-multiplying is a good habit)
110(1400)=200x
Simplify
154000=200x
Isolate the variable
154000=200x
/200 /200
770=x
And that would be your answer! If I made any errors, please tell me!
What is the equation of the line that passes through the point (-3,2) and has a slope of -3
Answer:
y=-3x-7
Step-by-step explanation:
y=mx+b
m=-3
-3 • -3 + b = 2
b = -7