9514 1404 393
Answer:
i
Step-by-step explanation:
The square root of -1 is the number that, when multiplied by itself, gives the product -1. It does not have a numerical value in the same way that the root of a positive number has a numerical value. It can only be represented by a symbol of some sort: √(-1) or i.
i² = -1
In some fields, the letter j is used instead (because i already stands for something different).
i = √(-1)
j = √(-1) . . . in electrical engineering (at least)
Erin knit a total of 40 centimeters of scarf over 5 nights. After 24 nights of knitting, how many centimeters of scarf will Erin have knit in total? Solve using unit rates.
Answer:
192 over 24 days
Step-by-step explanation:
40 divided by 5 is 8
8 times 24 nights is 192
my brothers work not mine hes in 4th grade
Answer:
36.2
Step-by-step explanation:
Please help me!!!! Fast
Answer: y x 6 - 2=16
Step-by-step explanation: y has to be 5
Last night, he washed 4 plates in 2 minutes. Tonight, his grandparents are coming to dinner, and Rick will wash 6 plates.
If he washes plates at the same rate, how many minutes will it take Rick to wash the plates tonight?
Answer:
id say about 3 minutes.
Step-by-step explanation:
if he washed 4 plates in 2 mins u would divide 4 by 2 and you'd get 2..aka half of a minute which is 30 seconds . so 30×6 is 180 which is 3 minutes
Answer:
3 minutes
Step-by-step explanation:
4 plates in 2 minutes
So, 1 plate in 1/2 minute
6 plates in 1/2 * 6 = 3 minutes
PLEASE HELP, DUE SOON!!
Answer:
can you give me an brainliest
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Use any methods that you learn to solve for x:
x2 + 2x + 1 = 0
Answer:
x= -1
Step-by-step explanation:
Answer:
1 or‒1
Step-by-step explanation:
x^2+2x+1=0
x(x+2)=‒1
x=‒1
(x+2=‒1)
x=‒1+2
x=1
so the answer is x=1 orx=‒1
i think it is clear answer
i hope it helps you
pls help i’ll give brainliest.
how many pounds are in 6 kilograms? 1 kg = 2.2 lbs.
6kg = [?] lbs
Answer:
13.2 lbs
Step-by-step explanation:
Answer:
13.2 pounds
Step-by-step explanation:
2.2 x 6 = 13.2
Help please!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:add all of it on the calculator and you will get your awnser
Answer:
$1,475
Step-by-step explanation:
I'm pretty sure this is correct because if she gets an 18% tip, it would mean her payment is multiplied by 1.18. 1,250 times 1.8 equals $1,475.
Hope this helps! ^-^
Also, I'm so sorry for the late response! My internet kept shutting down. :c
The value of a car decreases by about 15% in the first year. How much will a car be worth after one year if its initial value was 1000? 5000? 5020? X dollars?
Answer:
Results are below.
Step-by-step explanation:
Giving the following information:
Decrease in value= 15%
To calculate the value after one year, we need to use the following formula:
New value= current value/1.15
For $1,000:
New value= 1,000/1.15= $869.57
For $5,000:
New value= 5,000/1.15= $4,347.83
For $5,020:
New value= 5,020/1.15= $4,465.22
Darius works at footlocker on the weekends. His pay is directly proportional to the number of hours he works. In his last paycheck, Darius made $161.04 for working 22 hours. How much does Darius make per hour?
Answer: Darius make $ 7.32 per hour.
Step-by-step explanation:
Given: Darius's pay is directly proportional to the number of hours he works. In his last paycheck.
In his last paycheck, Darius made $161.04 for working 22 hours.
Then, his hourly earning = [tex]\dfrac{161.04}{22}=\$7.32[/tex]
Hence, Darius make $ 7.32 per hour.
Stephanie and Bryson both grow tomatoes to sell at farmers' markets. Stephanie grew a total of 70 pounds
of tomatoes to sell. She plans to sell the tomatoes for $3.50 per pound. The equation below represents the
profit in dollars, f(x), she will earn by selling x pounds of the tomatoes.
f(x) = 3.50x -110
Bryson plans to sell his tomatoes at a different farmers' market. He grew a total of 90 pounds of tomatoes.
The table below shows the profit, in dollars, he will earn by selling different numbers of pounds of
tomatoes.
Bryson's Tomato Sales
-97.50 -55.00 -12.50 30,00
Profit (dollars)
Pounds of
Tomatoes Sold
10
20
30
40
Answer:
See below
Step-by-step explanation:
Stephanie's profit relationship:
f(x) = 3.50x - 110Bryson's Tomato Sales, using the pairs of numbers let's find the relationship.
(10, -97.50) and (20, -55.00)Since it is also linear relationship, we'll find a slope and y-intercept:
m = (-55 - (-97.50))/(20 - 10) = 42.50/10 = 4.25y-intercept is:
-97.50 = 4.25*10 + b ⇒ b = -97.50 - 42.50 = - 140So the function is:
g(x) = 4.25x - 140Comparing the functions:
f(x) = 3.50 - 110g(x) = 4.25 - 140The slope of g(x) is greater than f(x) but the y-intercept is smaller
It translates as:
Bryson sells tomatoes at greater price: 4.25 vs 3.50 per poundStephanie needs to sell 110/3.5 = 31.4 pounds of tomatoes before making any profitBryson needs to sell 140/4.25 = 32.9 pounds of tomatoes before making any profitFarrah borrowed $155 from her brother. She has already paid back $15. She plans to pay back $35 each month until the debt is paid off.
Answer:
Just subtract 155 from 15 and divide that number what you got from 155 - 15 and divide it to 35.
Step-by-step explanation:
I dont know how much months are there so how much months you divide it from 35.
Answer:
A,b and d
Step-by-step explanation:
At Yvonne's auto dealing, car washes cost $5 for any time up to 10 minutes, plus $ .40 per minute after that. The managers at Yvonne's are trying to agree on a formula for calculating the cost c for a t-minute car wash. Sid thinks c = 0.4t + 5 is correct. Is he correct?
Answer:
He is incorrect
Step-by-step explanation:
Here, given the charge at the auto dealing, we want to know if the formula the managers came up with is correct
The base fee is $5 for 10 minutes or less
Now for any extra minute after the tenth, $0.5 will be paid
So for a t-minute wash, the amount to be paid will be;
C = $5 + 0.4( t- 10) = 5 + 0.4t - 4 = 1 + 0.4t
If t < 10 , C = $5
If t > 10, C = 1 + 0.4t
Sid is incorrect
Find the missing value ( 200 points if your answer is weird you will get reported).
(2x - 3)(x + 4) = 2x2 +____ - 12
Answer:
2x^2 + 5x - 12
Step-by-step explanation:
To distribute these two factors, use FOIL(First, Outer, Inner, Last) in this order.
(2x - 3)(x + 4) = 2x(x+4) - 3(x+4) = 2x^2 + 8x - 3x - 12 = 2x^2 + 5x - 12 .
(2x - 3)(x + 4) =
(2x * x) + (2x * 4) + (-3 * x) + (-3 * 4)
___________________________
(2x - 3)(x + 4)
| | | |
F F
O O
I I
L L
Calculate the present of the number
20% or 140=
Answer:
It is 28
Step-by-step explanation:
so
Please write down all of your thinking and show your work.
9514 1404 393
Explanation:
It is hard to tell what sort of axioms or theorems you might have available to invoke for this proof. Here, we'll assume that you can use the fact that the sine function of acute angles maintains ordering:
sin(a) > sin(b) iff a > b . . . . . where 0 ≤ a, b ≤ 90°
__
Draw altitude TX, where X lies on RS. The sine relation tells you ...
TX/TS = sin(∠S)
TX/TR = sin(∠R)
Dividing the second equation by the first, we have ...
sin(∠R)/sin(∠S) = (TX/TR)/(TX/TS) = TS/TR
Given that ∠R > ∠S, we know sin(∠R) > sin(∠S), so we have ...
sin(∠R)/sin(∠S) = TS/TR > 1
TS > TR . . . . multiplying by TR
what is the slope intercept form from the points (3,3) and (8,23)?
Answer: m=4
Step-by-step explanation:
Y2-y1 over x2-x1 =
23-3
Over
8-3
The answer is 20/5 simplified is 4.
The slope is m=4
Slope is represented by the letter m.
What is the slope of the line represented by the equation 2x+3y= –12 ?
The sum of two numbers is 63. The larger number is three more than four times the smaller number. Find both numbers.
what is 9 over 9 to the power of 3 using a single postitive exponent?
Answer:
if i am sure it is one i could be wrong bc 9 over 9 is 1 and then it to the third power is 1
Step-by-step explanation:
Answer:
The correct answer to (9/9)^3 = 1
Hope this helps and have a great day :)
And please mark me brainliest if you can :)
helpppppppppppppp
....
Answer: Suzie’s answer is incorrect.
Step-by-step explanation: the answer to the equation if x=-4 is actually 62
Answer:
Suzie’s answer is incorrect.
Step-by-step explanation:
the answer to the equation if x=-4 is actually 62
Determine whether WX and YZ are parallel, perpendicular, or neither
W(-6, -6),x(5,8), Y(4,7), Z(-1,0)
a. parallel
b. neither
c. perpendicular
Hugo has 7 yards of wood. He is going to cut the wood into pieces that are each yard long.
What is the maximum number of -yard pieces that Hugo can cut from the original piece of wood?
Answer:
7
Step-by-step explanation:
Find the slope of the line
Answer: 1/4
Step-by-step explanation:
There are 4 ducks to 6 geese. There are 6 ducks to 8 geese. There are 8 ducs to 10 geese. What does the function show?
Answer: +2 more geese
Step-by-step explanation:
We see that we have to add 2 for each of these:
4 + 2 = 6
6 + 2 = 8
8 + 2 = 10
The answer to the question is 10. Hope this helps!
༼ つ ◕‿◕ ༽つ
can anyone help me
2x2x3x2x5squared6
what is x/4 + 5 > 6=
please help, which do I shade green and red?? thanks
Answer:
shade all of the squares with two capital Ns (NN) red. Shade all the squares with one capital N and one Lowercase n with green. Leave the rest (nn) unshaded.
Step-by-step explanation:
[tex]shade \: all \: NN \to \boxed {red} \: \to \: \\ (they \: are \: all \: \boxed{ \: dominant \: offsprings} \: ) \\ \\ shade \: all \: Nn \to \boxed {green} \: \to \\ (they \: are \: all \: \boxed{hoterozygous \: }offsprings)\\ \\ shade \: all \: nn \to \: \boxed {nothing} \: \to \\ (they \: are \: all \: \boxed{ \: recessive \:offsprings \: })[/tex]
What does the intercept represent here
Answer:
the answer is that you need 2 quarters and no nickels to park for 60 minutes
Seat belt use in a state was estimated at %, which means % of people use their seat belts. Suppose two independent drivers have been randomly selected. a. What is the probability that both of them are using a seatbelt? b. What is the probability that neither of them is using a seatbelt? c. What is the probability that at least one is using a seatbelt? a. The probability that both of them are using a seatbelt is 0.3. (Type an integer or a decimal. Do not round.)
Question
Seat belt use in a state was estimated at 89%,
which means 89 % of people use their seat belts. Suppose two independent drivers have been randomly selected.
a. What is the probability that both of them are using aseatbelt?
b. What is the probability that neither of them is using aseatbelt?
c. What is the probability that at least one is using aseatbelt?
The probability that both of them are using a seatbelt is ?
Answer:
a
[tex]P(B) = 0.7921[/tex]
b
[tex]P(B)' = 0.0121[/tex]
c
[tex]P(K) = 0.9879[/tex]
Step-by-step explanation:
From the question we are told that
The proportion of seat belt use is p = 0.89
The sample size n = 2
Generally the probability that both drivers are wearing seat belt is mathematically represented as
[tex]P(B) = (p)^n[/tex]
=> [tex]P(B) = (0.89 )^2[/tex]
=> [tex]P(B) = 0.7921[/tex]
Generally the probability that neither of the two drivers are wearing seat belt is
[tex]P(B)' = (1 - p)^2[/tex]
=> [tex]P(B)' = (1 - 0.89)^2[/tex]
=> [tex]P(B)' = 0.0121[/tex]
Generally the probability that at least one of the drivers is wearing a seat belt is
[tex]P(K) = 1 - P(B)'[/tex]
=> [tex]P(K) = 1 - 0.0121[/tex]
=> [tex]P(K) = 0.9879[/tex]
