Answer:
no
Step-by-step explanation:
3. The variance of a set of positive numbers p.(p-5).(p-2), (p-3) (2p-5)is 5.84.
(a) Calculate the value of p.
Answer:
(a) p = 7
Step-by-step explanation:
The given parameters are;
p, (p - 5), (p - 2), (p - 3), and (2·p - 5) is 5.84
(a) Therefore we have;
The mean of the numbers = (p + (p - 5) + (p - 2) + (p - 3) + (2·p - 5))/5 = (6·p - 15)/5
The mean of the numbers = (6·p - 15)/5 = 6/5·p - 3
Using an online tool, we have;
The variance = (p - (6/5·p - 3))² + ((p - 5) - (6/5·p - 3))² + ((p - 2) - (6/5·p - 3))² + ((p - 3) - (6/5·p - 3))² + ((2·p - 5) - (6/5·p - 3))²/5 = 4/25·p² - 4/5·p + 18/5 = 5.84
Therefore, we have;
4/25·p² - 4/5·p + 18/5 = 5.84
4/25·p² - 4/5·p + 18/5 - 5.84 = 0
4/25·p² - 4/5·p - 2.24 = 0
Using the quadratic formula, we have;
p = (4/5 ± √((4/5)² - 4× 4/25×(-2.24)))/(2 × 4/25)
Which gives;
p = 7, or p = -2
Given that the numbers are positive, we have the only solution as p = 7
Taylan is making a line plot of these dragonfly lengths. How many marks should Taylan make above 3 in the line plot? Dragonfly Length (inches) 33 Lengths of Dragonflies Measured (in inches) 3 + > H + 3 3 3 3 4 4 31 37 32 31 ? marks su T DONE 4
Answer:
Taylan should make 2 marks above the 3 1/4 in the line plot.
Step-by-step explanation:
How do I solve this equation?
Answer:
x = ± [tex]\frac{2}{3}[/tex]
Step-by-step explanation:
[tex]|a|= \left \{ {a,if{a\geq 0} \atop-a, if {a<0}} \right.[/tex]
~~~~~~~~~~~~
7 | 3x | + 2 = 16
7 | 3x | = 14
| 3x | = 2
1). 3x = 2
x = [tex]\frac{2}{3}[/tex]
2). - 3x = 2
x = - [tex]\frac{2}{3}[/tex]
Which of the following are factors of 24?
a)
6, 24, 36, 48
b)
36, 48, 12, 72
c)
12, 1, 5, 24
d)
6, 2, 1, 24
Answer:
HELPING!
Step-by-step explanation:
D
Which expression is equivalent to 6(4c + 5) + 7?
Answer:
24c+37
Step-by-step explanation:
Malike rented a paddle boat at the park for a fixed charge of $2.50 plus $1.50 per hour. She want to stay out on the water as long as possible. How many hour can be use the boat without spending more than $7.00
Answer:
Malike can use the boat for 3 hours.
Step-by-step explanation:
$2.50 for renting the boat plus $1.50 per hour. 3 hours x $1.50 = $4.50 + the $2.50 = $7 flat
Malike can use the boat for 3 hours without spending more than $7.00
What is inequality?A statement of an order relationship-greater than, greater than or equal to, less than, less than or equal to- between two numbers or algebraic equations.
Now it is given that,
Fixed charge of boat = $2.50
Charge per hour = $1.50
Now let t be the total hours use by Malike.
Total charge in t hour = 1.50t
Total spending on boat = 2.50 + 1.50t
Since. She wants to spend not more than $7.00
⇒ 2.50 + 1.50t ≤ 7
Subtracting 2.5 both the side we get,
1.50t ≤ 7 - 2.5
⇒ 1.50t ≤ 4.5
Dividing both the side by 1.5 we get,
t ≤ 3
this is the total hours she can use the boat without spending more than $7.00
Thus, Malike can use the boat for 3 hours without spending more than $7.00
To learn more about inequality :
https://brainly.com/question/13363104
#SPJ2
Find the value of each variable.
PHOTO ABOVE
⚠️TEST⚠️
Answer:
34
Step-by-step explanation:
Parallel Lines Transversal Puzzle Activity gina wilson
Answer:
What
Step-by-step explanation:
What is 3x+1-x=5 answer quick
Answer:
x=2
Step-by-step explanation:
3x+1-x=5
add like terms
2x+1=5
subtract 1 from both sides
2x=4
divide by 2 from both sides
x=2
Answer:
3x+1-x=5
2x+1=5
2x=4
x=2 please give me brainlist
Step-by-step explanation:
Dominick is training for a race. He spends 0.75 hours running each time he runs and 1.5 hours swimming each time he swims. This week, he spent more than 6 hours training for the race. Which graph represents his possible training times this week?
A graph titled Dominick apostrophe s Training shows number of runs on the x-axis, from 0 to 10, and number of swims on the y-axis, from 0 to 5. A dashed straight line with a negative slope goes through (0, 4) and (8, 0). Everything to the right of the line is shaded.
A graph titled Dominick apostrophe s Training shows number of runs on the x-axis, from 0 to 10, and number of swims on the y-axis, from 0 to 5. A dashed straight line with a negative slope goes through (0, 4) and (8, 0). Everything to the left of the line is shaded.
A graph titled Dominick apostrophe s Training shows number of runs on the x-axis, from 0 to 5, and number of swims on the y-axis, from 0 to 10. A dashed straight line with a negative slope goes through (0, 8) and (4, 0). Everything to the right of the line is shaded.
A graph titled Dominick apostrophe s Training shows number of runs on the x-axis, from 0 to 5, and number of swims on the y-axis, from 0 to 10. A dashed straight line with a negative slope goes through (0, 8) and (4, 0). Everything to the left of the line is shaded.
Answer:
C.
Step-by-step explanation:
Answer:
it should be A.
Step-by-step explanation:
the person above me was incorrect, so i got 80%.
A running coach checks on his team's best recorded sprinting times during practice.
Drag the runners in order from the greatest to the least unit rate in meters per second.
Math item stem image
Answer:
hey we cant see the picture buddy
Hello, vanwhyjayden!
The correct answer is: (see below)
#LearnWithBrainly
https://brainly.com/question/19553035
please someone I need the right answer will give brainiest if right
Answer:
C. Because (-3)^2 is NOT equal to -9
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
√-9 is 3i.
Since there is a negative in the root, you can't have a regular number as the answer.
It askes why -3 is not the answer. Because -3 squared is 9, not -9.
simplify the following expression
(16a10)(-3a) =
Answer: Answer= 480a^2
Step-by-step explanation
1. remove the parentheses =-16a*10*3a
2. Multiply the numbers 16*10*3= 480
3. Apply exponent rule =aa=a^1+^1 = -480a^1+^1
Answer= 480a^2
At the beginning of spring, Jeremiah planted a small sunflower in his backyard. When it was first planted, the sunflower was 15 inches tall. The sunflower then began to grow at a rate of 2 inches per week. How tall would the sunflower be after 10 weeks? How tall would the sunflower be after ww weeks?
Answer:
a) How tall would the sunflower be after 10 weeks?
35 inches tall
Step-by-step explanation:
At the beginning of spring, Jeremiah planted a small sunflower in his backyard. When it was first planted, the sunflower was 15 inches tall. The sunflower then began to grow at a rate of 2 inches per week.
If the rate:
1 week = 2 inches
10 weeks = x inches
x = 10 × 2/1
x = 20 inches
How tall would the sunflower be after 10 weeks?
The initial height = 15 Inches
The height after 10 weeks =
15 inches + 20 inches
= 35 inches
What is the equation of the line that passes through the point (5,-2) and has a slope of -2/5?
Answer:
y= -2/5x -2
Step-by-step explanation:
y = mx + b
jxjxjxjxnxjddjdjdjdjj
How do I solve this equation and check all the solutions?
Answer:
x = 12
Step-by-step explanation:
[tex]\sqrt{3x}[/tex] + 10 = x + 4
[tex]\sqrt{3x}[/tex] = x - 6
( [tex]\sqrt{3x}[/tex] )² = ( x - 6 )²
3x = x² - 12x + 36
x² - 15x + 36 = 0
(x - 3)(x - 12) = 0
[tex]x_{1}[/tex] = 3
[tex]x_{2}[/tex] = 12
Check the answer:
[tex]\sqrt{3*3}[/tex] + 10 ≠ 3 + 4
13 ≠ 7 ⇒ 3 is not the root of original equation (strange root)
[tex]\sqrt{3*12}[/tex] + 10 = 12 + 4
16 = 16 ⇒ 12 is the root of original equation
x + 3y = 18 -x-4y=-25
Answer:
x = 1 and y = 6
Step-by-step explanation:
3y = 18
y =18/3 = 6
Put the y value in -x -4y = -25
-x -4(6) = -25
-x -24 = -25
-x = -25 + 24
-x = -1
x = 1
Carlos worked 31.5 hours at a hospital as a volunteer. This represents 87.5% of his school’s requirement for community service. How many hours does the school require for community service?
Answer:
The answer to this question would be (to my best guess), 36 hours.
Step-by-step explanation:
First
You have to find the ratio between 87.5% and 100%. This is because you want to find what 100% represents.
To do this, you have to divide 100 by 87.5, which would represent 100 divided by 87.5. This will equal 1.142857142857143 , which isnt an easy number to work with.
Lastly
You have to multiply 1.142857142857143 by 31.5, because you reverse the previous operation, but the only difference is you swap out the percentages with the numbers they represent. This equals the final answer, which is 36, representing 36 hours.
Find the Midpoint of a segment with the following endpoints. Type your
final answer in the provided box
(-1, 4) and (4,1)
Answer:
3/2;5/2
Step-by-step explanation:
-1+4/2 ; 4+1/2
3/2 ; 5/2
A candle is lit and burns at a constant rate of change until it is completely burned. When the candle has been burning for 2.7 hours it is 14.3 inches tall and when it has been burning for 7.1 hours it is 4.2 inches tall. At what constant rate did the candle burn?
Answer:
2.29 inches/hour
Step-by-step explanation:
Given that the candle burns at a constant rate.
After time 2.7 hours, candle was 14.3 inches tall.
After time 7.1 hours, candle was 4.2 inches tall.
To find:
The constant rate at which the candle burn.
Solution:
Let the length be represented by [tex]l[/tex] and time be represented by [tex]t[/tex].
Let the constant rate be [tex]m[/tex].
and the initial length be [tex]L.[/tex]
The equation can be written as:
[tex]l =mt+L[/tex]
At [tex]t[/tex] = 2.7 hours , [tex]l[/tex] = 14.3 inches
[tex]14.3 =2.7m+L ..... (1)[/tex]
At [tex]t[/tex] = 7.1 hours , [tex]l[/tex] = 4.2 inches
[tex]4.2 =7.1m+L ..... (2)[/tex]
Equation (1) minus (2):
[tex]10.1=-4.4m\\\Rightarrow m = - 2.29\ inches/hour[/tex]
The candle burns at the rate of 2.29 inches/hour.
The plant runs 80 hours a week. A day has 24 hours. How many days does the plant run each week? ( hint: include the reminder.)
Answer:
Step-by-step explanation:
7?
Answer:
3 days and 8 hours
Step-by-step explanation:
80 ÷ 24 = 3.3333333333 (you get what i mean)
3 days and .3333333333 more of a day
24 ÷ 3 = 8
8 hours
3 days and eight hours
HOPE THIS HELPS
PLZZ MARK BRAINLIEST
At the movie theatre, child admission is $5.30 and adult admission is $9.90. On Monday, 164 tickets were sold for a total sales of $1195.80. How many child
tickets were sold that day?
Number of child tickets:
х
$
2
I Don't Know
Submit
© 2020 McGraw-Hill Education. All Rights Reserved. Terms of Use
Answer:
97 child tickets were sold.
Step-by-step explanation:
[tex]x+y=164\\5.30x+9.90y=1195.80\\[/tex]
y=164-x
[tex]5.30x+9.90(164-x)=1195.8[/tex]
[tex]1623.6-4.40x=1195.8[/tex]
[tex]-4.40x=-427.8[/tex]
[tex]x=97.23[/tex]
Someone help me please I don’t know how to do this
Step-by-step explanation:
A
y=10x
x:y=x:10x=1:10
Kayla's school is selling tickets to the annual dance competition. On the first day of ticket sales the school
sold 3 senior citizen tickets and 5 child tickets for a total of $70. The school took in $216 on the second day by
selling 12 senior citizen tickets and 12 child tickets. Find the price of a senior citizen ticket and the price of a
child ticket.
Answer:
senior ticket = $10 child's ticket = $8
Step-by-step explanation:
s = senior ticket
c = child's ticket
We need to write 2 equations, and we have 2 unknowns, s and c.
3s + 5c = $70
12s + 12c = $216
First solve for s using the first equation.
3s + 5c = 70 Subtract 5c from each side
3s + 5c - 5c = 70 - 5c
3s = 70 - 5c Divide each side by 3
3s/3 = (70 - 5c)/3
s = [tex]\frac{70 - 5c}{3}[/tex]
Now plug in s into the second equation.
12s + 12c = 216
12([tex]\frac{70 - 5c}{3}[/tex]) + 12c = 216
[tex]\frac{12}{3}[/tex] (70 - 5c) + 12c = 216
4 (70 - 5c) + 12c = 216
280 - 20c + 12c = 216
280 - 8c = 216 Add 8c to each side
280 - 8c + 8c = 216 + 8c
280 = 216 + 8c Subtract 216 from each side.
280 - 216 = 216 - 216 + 8c
280 - 216 = 8c
64 = 8c Divide each side by 8
64/8 = 8c/8
64/8 = c
8 = c
Now plug c into the first equation and solve for s.
3s + 5c = 70
3s + 5(8) = 70
3s + 40 = 70 Subtract 40 from each side.
3s + 40 - 40 = 70 - 40
3s = 70 - 40
3s = 30 Divide each side by 3
3s/3 = 30/3
s = 30/3
s = 10
So a senior ticket costs $10 and a child's ticket costs $8.
IS THIS A GOOD SONG
Life Is Fun
The odd1sout
Ahhh! Such a beautiful day, uh (Yeah)
The sun's shining in a beautiful way, uh (Whoo)
Gonna take a shower, brush my teeth and
Life is ultimately meaningless
Uhh... Uhh...
But I'll get out of the house
Get on the road, top down, hands out
Put on my favorite song and nod to the rhythm
The planet's being destroyed by your carbon emissions
But I- I-, I'll head to class
Try my best on every test 'til I pass
And my grades are screaming in my face, hey
98 percent of what you learn is a waste
I get to hang out with all my friends (Yeah)
My friends are the friendliest friends
Can't think of a better way to spend my time
Your brain is flawed, and all your friends will die
Never mind!
I'm alive in the greatest nation!
So proud of the exploitation of natives
This graceful bird means freedom for all
Tell that to the slaves, and bald eagles aren't bald
I can live in the moment, milk every second
At any time you could get clinical depression
But I'll just be happy, no matter what's in store
It's quite genetic, and we have no cure
Uh, at least
We are young
Not for long
Life is fun
It only goes downhill
We gotta make the most of it! Make the most of it!
Or you'll regret it
We are young
For now
Life is fun
For some people
We gotta make the most of it! Make the most of it!
Good luck
Woo! I got a brand new job today! (Yeah)
Doin stuff that'll help the economy (Uh)
I'll save money and buy things at the store
Banks can crash and capitalism is flawed
And it's all because of my hard work
And the thousand advantages you lucked into at birth
I put a lotta effort in my resume!
Good thing you don't have a black person's name
I'm proud to be a functioning member of society
Finally, I can be the citizen I dream to be
Part of the community, contribute with my tax
What could possibly stop me?
The shrinking middle class
I've at least got a nice stable job
Until it's outsourced to China or replaced by a robot
OH GOD! Well, then I could relax a bit
You'll be empty with nothing to distract from it
But man, I'm a passionate graduate
I can be different, and I have a career paths to pick from
I could be a rapper or an animator if I'm lucky
Neither of those will make you happy, trust me
I'm able to choose what I pursue (Yeah)
You're a slave to people born richer than you
Then screw it, I'll keep going in
Then I'll party on the weekend and sing, no, oh, oh oh
Thanks to autotune
We are young
Not for long
Life is fun
It only goes downhill
We gotta make the most of it! Make the most of it!
Or you'll regret it
We are young
We still die
Life is fun
Until you die
We gotta make the most of it! Make the most of it
Because you'll die
Life is a wonder
You'll never know the answer
Nature is a miracle
Natural disasters
It's good to be alive
You could wake up with cancer
But I'm healthy
Healthy people still get cancer
I love this show
It's the last episode
The sun is shining
It's going to explode
Every species is beautiful and unique, though
Children have malaria thanks to mosquitoes
I met a cute girl with a ponytail
Statistically that relationship is going to fail
I have a wonderful family, it's like no other
You're not special, and one day you'll bury your mother
No matter what, I can find a home!
We, Will All, Die, Alone
There's amazing potential in every human on earth
There's no escaping the heat death of the universe
I don't have to live life based on negative parts
No matter how bad they are, they're just thoughts
Yeah, that's fair
Wait, really?
Yeah that seems reasonable
Wait, wait, wait, wait but you were just telling me to-
Whatever man, I dunno, live your life how you want
I'm not forcing you to do anything, I'm just saying
Oh...
Well in that case...
We are young!
Life is fun!
We gotta make the most of it! Make the most of it!
We are young!
Life is fun!
We gotta make the most of it! Make the most of it!
Enjoy it while it lasts
Answer:
i forgot about it but ye its cool
Step-by-step explanation:
ooh I love life is fun it one of a good songs
Express Jenny's age in terms of a if jenny is three years less than half of Anne's age
Express Fraz's age in terms of a if Fraz is twice the sum of Anne's age and 7
Please help meeeeeeeee
Answer:
m <4= 57 degrees
m<5= 123 degrees
m<6= 35 degrees
I hope this helps and good luck!
Answer:
m∠4 = 57°
m∠5 = 123°
m∠6 = 35°
Step-by-step explanation:
m∠4 ≅ ∠57°
Therefore m∠4 = 57°
Following this rule of thumb
m∠6 ≅ 35°
m∠6 = 35°
m∠5 = 180 - 57
m∠5 = 123
Its hard to explain given the fact that I cant quite point to each angle
Hope this helps
The diameter of a cart wheel is 26 inches. How far will it
go in one rotation?
Step-by-step explanation:
To find the distance travelled, you first have to find the circumference. After all, that is the part which actually touches the ground in the first place. The formula for the circumference is 2πr = C, where π=3.14, r is the radius (or half diameter). As such, we can plug in the values:
2*3.14*(26/2)=C -> 6.28*13=C -> 81.64 in = C
Step-by-step explanation:
Commutative law under addition says- p + q = q + p. Commutative law under multiplication says p x q = q x p. Note- Rational numbers, integers and whole numbers are commutative under addition and multiplication. Rational numbers, integers and whole numbers are non commutative under subtraction and division.
Rewrite 2/5:1/20 as a unit rate
Answer:
8:1
Step-by-step explanation:
yes .
what is the value of ?