Answer:
D. Y<1.25x+2.25
Step-by-step explanation:
Solve the equation by completing the square
3s^2+8s=2s-9
S=
S=
I need this to be answer ASAP and with a step by step explanation please !
Answer:
x = - 1 ± i[tex]\sqrt{2}[/tex]
Step-by-step explanation:
Given
3s² + 8s = 2s - 9 ( subtract 2s - 9 from both sides )
3s² + 6s + 9 = 0
To complete the square
The coefficient of the s² term must be 1, so factor out 3 from 3s² + 6s
3(s² + 2s) + 9 = 0
add/subtract ( half the coefficient of the s- term )² to s² + 2s
3(s² + 2(1)s + 1 - 1) + 9 = 0
3(s + 1)² - 3 + 9 = 0
3(s + 1)² + 6 = 0 ( add 6 to both sides )
3(s + 1)² = - 6 ( divide both sides by 3 )
(s + 1)² = - 2 ( take the square root of both sides )
s + 1 = ± [tex]\sqrt{-2}[/tex] = ± i[tex]\sqrt{2}[/tex] ( subtract 1 from both sides )
s = - 1 ± i[tex]\sqrt{2}[/tex]
Thus
s = - 1 + i[tex]\sqrt{2}[/tex] , s = - 1 - i[tex]\sqrt{2}[/tex]
What is the component form and magnitude of the
vector shown?
A. <7,-3) and 23°
B. (-7,3) and 23°
C.(7.-3) and 157°
D.(-7,3) and 157°
Answer:
<-7,3> and 157°
Step-by-step explanation:
Trust fam
Answer:
D.
Step-by-step explanation:
edg 21
m∠COX = m∠AOX + m∠
Answers:
COD
COE
COX
COA
Answer:
ok
Step-by-step explanation:
Answer:
m∠COA
Step-by-step explanation:
m∠COX = 80°
Here,
m∠COX = 40° + m∠COA
m∠COX = 40° + 40° = 80°
Thus, m∠COX = m∠AOX + m∠COA
-TheUnknownScientist
Which expression is equivalent to 2(9 + 7)?
options: 1. 18 + 14
2. 18 + 7
3. 11 + 9
4. 11 + 7
Step-by-step explanation:
option 1 is ur answer hope this helpss bro
write the exspression for 50 time the sum of 64 and 36
Answer:
50(64+36)
Step-by-step explanation:
Answer:
50x8= 400x4=1,600
Step-by-step explanation:
Average Weekly Earnings The average weeklyearnings in dollars for various industries are listedbelow. Find the percentile rank of each value.
804 736 659 489 777 623 597 524 228
For the same data, what value corresponds to the 40th percentile
Answer:
a. 228- 6th, 489- 17th, 524- 28th, 597- 39th, 623- 50th, 659- 61th, 736- 72th, 777- 83th, 804- 94th
b. 597
Step-by-step explanation:
arrange the data:
228, 489, 524, 597, 623, 659, 736, 777, 804
a. percentile = ((number of items below position + 0.5)/ number of items ) 100
for 228 = (0+0.5/ 9) 100 = 6th
for 489 = (1+0.5/ 9) 100 = 17th
for 524 = (2+0.5/ 9) 100 = 28th
for 597 = (3+0.5/ 9) 100 = 39th
for 623 = (4+0.5/ 9) 100 = 50th
for 659 = (5+0.5/ 9) 100 = 61th
for 736 = (6+0.5/ 9) 100 = 72th
for 777 = (7+0.5/ 9) 100 = 83th
for 804 = (8+0.5/ 9) 100 = 94th
b. The corresponding value for the 40th = number of item( percentile)/ 100
= 9( 40) / 100 = 3.6 approximately 4th which is 597
the red knot speeds spring and summer in northern canada where it's breeding ground are located and winters as far south as the southern tip of South America.
a) Canada, where it's breeding ground located
b) Canada where it's breeding ground located,
c) canada, where it's breeding ground located,
d) correct as it is
witch one is correct
Answer: A
Step-by-step explanation:
uIf it included Northern in the answer choices than it should be capital because it is a location and with the comma after Canada helps clarify here its breeding ground is at and to stop it from being a run on sentence (tho It would be used with a period to stop a run on sentence but to help it here.)
Monica can clean the house in 5 hours by herself. When Monica and Sydney
work together, it takes 3 hours. How long would it take Sydney to clean the
house by herself?
A. 5.5 hours
B. 7.5 hours C. C: 2.0 hours
D. 4.7 hours
Answer:
The answer is B 7.5 hours.
Step-by-step explanation:
A. P. E. X
Sydney can clean her house in 7.5 hours.
What is Efficiency?Efficiency is often measured as the ratio of useful output to total input, which can be expressed with the mathematical formula r=P/C, where P is the amount of useful output ("product") produced per the amount C ("cost") of resources consumed.
Here, Monica can clean her house in 5 hours
Monica's efficiency = 1/5
Let, Sydney cleans the house in x hours.
Sydney's efficiency = 1/x
They both together complete their work in 3 hours
Combined efficiency = 1/3
Now, according to question;
1/5 + 1/x = 1/3
(x+5)/5x = 1/3
3x + 15 = 5x
5x - 3x = 15
2x = 15
x = 15/2
x = 7.5
Thus, Sydney can clean her house in 7.5 hours.
Learn more about Efficiency from:
https://brainly.com/question/13828557
#SPJ2
Simplify (10x^3 -3x-5) - (7x^2 +4x-9)
Answer:
10x³ - 7x² - 7x + 4
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyAlgebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define
(10x³ - 3x - 5) - (7x² + 4x - 9)
Step 2: Simplify
Distribute negative: 10x³ - 3x - 5 - 7x² - 4x + 9Combine like terms (x): 10x³ - 7x² - 7x - 5 + 9Combine like terms (Z): 10x³ - 7x² - 7x + 4what is the value on the expression 1/2-(-1/3+2/5)?
Answer:
i think it is -7/30 but i am not sure
Okay this question is making me angry and i literally cannot move on until i have it answered.
"Lara plants some sunflowers and notices that they grow 1/9 foot per day. How many days will it take Lara's sunflowers to grow to a height of 7 7/12 feet?"
I have to answer it as a fraction or mixed number.
Answer:
5600000000000⁰
00988
Solve the inequality (3+ 2r) -4>9
I NEED HELP! WHO EVER ANSWERS FIRST I WILL MARK BRAINLIEST
Answer:
54
Step-by-step explanation:
If the price of a certain stock is $52.00 per share and its earnings are $3.25 per share, what is the ratio of the stock’s price to its earnings?
Answer:
it is 48.75
Step-by-step explanation:
Answer:
16:1 is what I think you are asking for
Step-by-step explanation:
Sally works at a store.
x represents Sally's monthly paycheck, and y represents her
monthly savings.
Sally will save at least $20 more than half of her paycheck each
month.
She can save at most $80 more than two-thirds of her paycheck
each month.
Her paycheck each month is at least $1,200, but no more than
$1,850.
Which system of inequalities represents these constraints?
Answer: Y [tex]\geq[/tex] [tex]\frac{1}{2}[/tex] x+ 20
Y [tex]\leq[/tex] [tex]\frac{2}{3}[/tex] x+ 80
X [tex]\geq[/tex] 1,200
X [tex]\leq[/tex] 1,850
Step-by-step explanation:
The system of inequalities which represents these constraints is y ≥ 20 + (1/2)x, y ≤ 80 + (2/3)x and 1200 ≤ x ≤ 1850
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Let x represents Sally's monthly paycheck, and y represents her monthly savings.
Hence:
y ≥ 20 + (1/2)x
also:
y ≤ 80 + (2/3)x
and:
1200 ≤ x ≤ 1850
The system of inequalities which represents these constraints is y ≥ 20 + (1/2)x, y ≤ 80 + (2/3)x and 1200 ≤ x ≤ 1850
Find out more on equation at: https://brainly.com/question/2972832
#SPJ2
The front of the birdhouse is made using 45 square inches of would what is the height of the birdhouse
Answer:
30 I think. The bird house is 45 so minus 15 you get 30
Answer:
45
Step-by-step explanation:
a square is equal no mater what. here i bless the eyes
jackson and julie are babysitters
Answer:UwU
Step-by-step explanation:
Answer:
kfjnenowkn jcnj dnonojneqfou
Step-by-step explanation:
Patty used 740.88 gallons of water over the course of 7 days. How much water did Patty use, on average, each day?
105.84 water used on average each day.
740.88 divided by 7 will give you 105.84
Or, 7 times 105.84 will get you 740.88
There were many ways you could get this, hope this helped!
State the property that justifies the statement: If 4x + 9 = 15 and X=2y + 1,
then 4(2y+1) + 9 = 15.
Distributive Property
Multiplication Property of Equality
Transitive Property of Equality
Substitution Property of Equality
Answer:
Substitution property of equality
Step-by-step explanation:
Given
[tex]4x + 9 = 15[/tex] and [tex]x = 2y + 1[/tex]
Then
[tex]4(2y + 1) + 9 = 15[/tex]
Required
State the property
From the list of options, (d) answers the question.
This is so because:
Substitution property of equality states that
If [tex]a = b[/tex] then [tex]b = a[/tex]
In other words, both can replace one another.
So if [tex]x = 2y + 1[/tex], then 2y + 1 can be substituted for x in [tex]4x + 9 = 15[/tex]
So:
[tex]4x + 9 = 15[/tex] becomes
[tex]4(2y + 1) + 9 = 15[/tex]
Hence, it is substitution property of equality
(27y^4-3y^3) /(3y) =
Question is in the image
Answer:
4.
Step-by-step explanation:
y = -2x + 3
-1 = -2(2) + 3
-1 = -4 + 3
-1 = -1
y = x - 3
-1 = 2 - 3
-1 = -1
Given g(x) = (x - 3)2 and h(x) = 2x + 1, which of the following is (g.h)(5)?
(A) 35
(B) 38
(C) 44
(D) 45
Answer:
B
Step-by-step explanation:
What's is the quotient?
-4 1/3
____
-3/4
Thank you please answer
Answer:
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
Step-by-step explanation:
Answer:
5 7/9 (5 and 7/9)
Step-by-step explanation:
-4 1/3 divided by -3/4
= (-4 1/3) / ( -3/4)
= (-13/3) / (-3/4)
= (-13/3) * (-4/3)
= 52/9
= 5 7/9
The Mayor of Carrabelle, FL, is expecting an increase in the population by 6.5% next year.If represents the current population, which expression can the Mayor use to find the expected population next year?
•1.65
•1.065
• + 0 .065
•1 + 0 .065
Please help
Answer:
1.065p
Step-by-step explanation:
i dont exactly know the Step-by-step explanation but when i answered it on my test they said it was right !!
Please help I’ll mark u <3
Answer:
x>-4
Step-by-step explanation:
Find f(g(4)) if f(x)=2x+1 and g(x)=x^2
Answer:
is this even math????
Step-by-step explanation:
First solve g(x) by replacing x with 4
G(x) = x^2 = 4^2 = 16
Now replace x in f(x) with 16:
F(x) = 2x + 1 = 2(16) + 1 = 32 +1 = 33
The answer is 33
Elly's Hotdog Emporium is famous for its chilidogs. Elly's latest sales indicate that 30% of the customers order their chilidogs with hot peppers. Suppose 15 customers are selected at random.
a. What is the probability that exactly 10 customers will ask for hot peppers?
b. What is the probability that between two and six people inclusive want hot peppers?
c. What is the probability that all 15 will want hot peppers?
Answer:
A.) 0.002980
B.) 0.8335
C.) 0.00000000143
Step-by-step explanation:
The problem can be solved using the binomial probability formula :
P(success) p = 0.3
Number of trials (n) = 15
P(x = x) = nCx * p^x * (1 - p)^(n-x)
A) Exactly 10:
P(x = 10) = 15C10 * 0.3^10 * 0.7^5
3003 * 0.3^10 * 0.7^5
= 0.002980
B) between 2 and 6 people :
Using binomial probability calculator to save time
P(2) + p(3) + p(4) + p(5) + p(6)
0.0915 + 0.170 + 0.219 + 0.206 + 0.147
= 0.8335
C.) What is the probability that all 15 will want hot peppers?
P(x = 15) = 15C15 * 0.3^15 * 0.7^0
= 1 * 1.4348907E−8 * 1
= 0.00000000143
Please help me with math ASAP
Answer:
Step-by-step explanation:
Well what's your question
The amount of time it takes Isabella to wait for the bus is continuous and uniformly distributed between 3 minutes and 17 minutes. What is the probability that it takes Isabella more than 5 minutes to wait for the bus
Answer:
P(X>5) = 0.857
Step-by-step explanation:
Let X [tex]\sim[/tex] uniform(3.17)
[tex]f(x) = \dfrac{1}{17-3} ; \ \ \ 3 \le x \le 17[/tex]
The required probability that it will take Isabella more than 5 minutes to wait for the bus can be computed as:
[tex]P(X > 5) = \int ^{17}_{5} f(x) \ dx[/tex]
[tex]P(X > 5) = \int ^{17}_{5} \dfrac{1}{17-3} \ dx[/tex]
[tex]P(X > 5) =\dfrac{1}{14} \Big [x \Big ] ^{17}_{5}[/tex]
[tex]P(X > 5) =\dfrac{1}{14} [17-5][/tex]
[tex]P(X > 5) =\dfrac{12}{14}[/tex]
P(X>5) = 0.857
Find X HELP ME please!!
Answer:
The answer is A) 3 Hope this helped