For this case we have a quadratic equation of the form:
ax² + bx + c = 0
Rewriting the equation we have:
3k² -4k - 7 = 0
So we have to:
a = 3
b = -4
c = -7
The solutions will come from:
k = -b±√b²-4(a)(c)/2(a)
Thus, the value of "b" is -4
Answer:
b = -4
Answer: -4
Step-by-step explanation:
i took the quiz its -4
The admission fee at an amusement park is $6.50 for children and $15.00 for adults. On a certain day, 337 people entered the park, and the admission fees collected totaled $3,423.00. How many children and how many adults were admitted?
Answer:
192 children and 145 adults were admitted.
Step-by-step explanation:
Let c represent the amount of children and let a represent the amount of adults.
Total fees for children = (Fee for one child) x (Amount of children) = 6.5c
Total fees for adults = (Fee for one adult) x (Amount of adults) = 15a
Total fees = Total fees for children + Total fees for adults
3423 = 6.5c +15a
We know that the amount of people who entered the park was 337. Therefore a+c=337, which means a=337-c.
Sub this in to the equation above to get:
3423 = 6.5c +15 (337-c)
3423 = 6.5c + 5055 - 15c
-1632 = -8.5c
c = 192
So there were 192 children.
Since a=337-c and c=192, a=337-192=145. So there were 145 adults.
What do I do about this?
Answer:
you can get a VPN and it will let you view restricted content
m
+ 4 = 7
Step One:
Step Two:
Step Three:
Step Four:
ma9
m/3+4+4+7+4
m/3-7
m=21
m/3+4-47-4
m/3*3+4=743
m/3-3
ma17
m/3+4-3=7-3
m/3*3=3*3
m/3+7=4
m=3
m/3+8=11
m/314-4=7
m+4=21
Answer:
see below
Step-by-step explanation:
m/3 + 4 = 7
Subtract 4 from each side
m/3+4-4 = 7-4
m/3 = 3
Multiply each side by 3
m/3*3 = 3*3
m =9
solve the following inequality for n -5n+6≥-7(5n-6)-6n
Answer: The inequality is: n ≥ 36/37
Step-by-step explanation:
Let's solve your inequality step-by-step.
n − 5n + 6 ≥ −7(5n−6)−6
----------------------------------------------------------------------------------------------------------------
Step 1: Simplify both sides of the inequality.
−4n + 6 ≥ −41n + 42
----------------------------------------------------------------------------------------------------------------
Step 2: Add 41n to both sides.
−4n + 6 + 41n ≥ − 41n+ 42 + 41n
37n + 6 ≥ 42
----------------------------------------------------------------------------------------------------------------
Step 3: Subtract 6 from both sides.
37n + 6 − 6 ≥ 42 − 6
37n ≥ 36
----------------------------------------------------------------------------------------------------------------
Step 4: Divide both sides by 37.
37n/37 ≥ 36/37
n ≥ 36/37
----------------------------------------------------------------------------------------------------------------
Answer:
n ≥ 36/37
Source: https://www.mathpapa.com/calc.html?q=x+y%3D7%2C%20x+2y%3D11
, Hope this helps :)
Have a great day!!
Rewrite 9 x 7 =675 using distributive property
Rewrite 6 x 4 x 5 = 120 using the commutative property
Hurry! Will reward brainliest to first person who answers!
Answer:
9(7)= 675
4·6·5= 120
Step-by-step explanation:
Hope this helps! :0
5) What is the slope of the line?
50 POINTS PLS HELP ASAP AND THANK YOU
Answer:
The answer is C.
rational function f(x)=5-x/x^2+5x+6 f(x)=3
Answer:
jgfjfhjhjbnbvmnfnmf
Step-by-step explanation:
Một ông 43 tuổi đến khám tổng quát. Phân tích nước tiểu thấy có đường niệu. Bạn vừa biết có một test T dung phát hiện bệnh tiểu đường như sau: 138 cho T+ trên 150 người bị tiểu đường và 24 cho T+ trên 150 người không bị tiểu đường. a) Tìm độ nhạy, độ chuyên, dương giả, âm giả của T b) Bằng phương pháp thử máu (T’) có độ nhạy 0.8; độ chuyên 0.96; đem áp dụng cho hai nhóm trên thì giá trị đoán trước là bao nhiêu nêu T’ dương tính. c) Với bệnh nhân này, nếu T dương tính bạn cho là có khả năng 90% bị tiểu đường còn nếu T' cũng dương tính thì khả năng bị tiểu đường là bao nhiêu
Answer:
Step-by-step explanation:
Is this correct or not I have been stuck for 30 min I'm exhausted lol
Answer:
Absolute maximum is (3, 7)
Absolute minimum is (1, 1)
Step-by-step explanation:
Absolute maximum is the point in a graph where the highest point is marked, in this case the graph is highest at (3, 7).Absolute minimum is where the lowest possible point is marked, in this graph, it's marked at (1, 1)Answer:
The absolute maximum values are --> x = 3 and y = 7
The absolute minimum values are --> x = 1 and y = 1
Find the area of the parallelogram.
Answer:
894
Step-by-step explanation:
PLEASE NO ONE WILL HELP ME WITH THIS
Find a sequence of rotations, reflections, translations, and dilations showing that one figure is similar to the other.
BE SPECIFIC: give the amount and direction of a translation, a line of reflection, the center and angle of a rotation, and the cent and scale factor of a dilation.
Answer:
ABCD dilates in a scale of 1/3 by the center of A followed by a reflection of C.
AD/AD = 1/3
Step-by-step explanation:
Which graph represents the function f(x) = 1/3|x|?
Answer:
Whichever one looks like this
Step-by-step explanation:
Could use some help here plz.
is a/b +b/c rational number
Answer:
Yes.
Step-by-step explanation:
Yes.
Assuming a, b and c are integers (not = 0)
a/b + b/c
= (ac + b^2) / bc which is a rational number.
A research team conducted a study showing that approximately 20% of all businessmen who wear ties wear them so tightly that they actually reduce blood flow to the brain, diminishing cerebral functions. At a board meeting of 15 businessmen, all of whom wear ties, what are the following probabilities?
(a) at least one tie is too tight
(b) more than two ties are too tight
(c) no tie is too tight
(d) at least 13 ties are not too tight
Answer:
b) more than two ties are too tight
Step-by-step explanation:
20% of 15
15 = 100%
x = 20%
100x = 15 * 20
x = 300/100
x = 3
ps: I always wear my tie loose at any circumstance, guess I'll never be a good businessman with reduced blood flow to the brain =/
A.
All of the expressions are in simplest form.
B.
All of the expressions result in a terminating decimal.
C.
All of the expressions result in a rational number.
D.
All of the expressions result in an irrational number.
Answer:
b
Step-by-step explanation:
pls mark me as brainliest pls
I have 47 questions I posted going to post the second if you answer all the I give you 100 points and brainlist
Answer:
1. 245
2. Rational Number
3.integers
4. false
5.square root
Step-by-step explanation:
Helpp i have 12 minutes
Answer:
the answer is 924.8 round it up and you get 925
Step-by-step explanation:
Trina is cutting ribbon to make bows if she has 7.5 yards of ribbon and she needs 0.4 yards for each bow how many bows can she make
Answer:
She can make 18 bows.
Step-by-step explanation:
0.4 x 18 = 7.2, and you cannot go over since she only has a supply of 7.5.
Hope it helps!
Please mark brainliest if you want to, it'd mean a lot :)
Answer:
skilled readers make use context and predictionskilled readers make use context and predictionskilled readers make use context and prediction
Step-by-step explanation:
_-9-2=4
What is the missing number please
Answer:
28
Step-by-step explanation:
look it up lol
Let
A
=
{
1
,
2
,
6
}
and B={x
|
x is an odd whole number less than 8},
Answer:
I think the answer is 1. The problem is unclear though
In the year 2007, a company made $2.2 million in profit. For each consecutive year
after that, their profit increased by 9%. How much would the company's profit be in
the year 2009, to the nearest tenth of a million dollars?
Answer:
4.796
Step-by-step explanation:
get the 9% which is .178 plus that by 2.2 and x 2
How much of the circle is shaded? Write your answer as a fraction in simplest form.
Answer:
3/8\
Step-by-step explanation:
you do one half minus one eight and you get 3/8
PLEASE HELP ASAP
If 4
(A) between 5/8 and 4/5
(B) between 1 and 2
(C) between 0 and 2
(D) between 1/2 and 1
(E) cannot be determined
Answer: I'm not sure how to interpret "If 4 (A) between 5/8 and 4/5." If the sentence was supposed to read:
"Is 4:
(A) between 5/8 and 4/5
(B) between 1 and 2
(C) between 0 and 2
(D) between 1/2 and 1
(E) cannot be determined
Step-by-step explanation: If this is the correctly rewritten question, then the answer is NO to all the options. If I have misinterpreted the question, please clarify.
4%*57+(7654*34562)-68+1-213=?
Step-by-step explanation:
264537270.28
ok..... oddly..
what is the product of the roots of quadratic equation?
Product of the roots = c/a = c
Hope this helped you- have a good day bro cya)
Pa help po plis papasa na daw po bukas
Answer:
b
c
a
Step-by-step explanation:
if wrong sorry
and pls give brainliest
3. Find the slope of the line passing through the points (-4,-8) and (2,-8)
2. Find the slope of the line passing through the points(6,6) and (6,-4)
Answer:
2. undefined
3. 0
Step-by-step explanation:
Formula : -
Slope = ( y2 - y1 ) / ( x2 - x1 )
3.
( x1, y1 ) = ( - 4, - 8 )
Here,
x1 = - 4
y1 = - 8
( x2, y2 ) = ( 2, - 8 )
Here,
x2 = 2
y2 = - 8
Slope = ( - 8 - ( - 8 ) ) / ( 2 - ( - 4 ) )
= ( - 8 + 8 ) / ( 2 + 4 )
= 0 / 6
Slope = 0
2.
( x1, y1 ) = ( 6, 6 )
Here,
x1 = 6
y1 = 6
( x2, y2 ) = ( 6, - 4 )
Here,
x2 = 6
y2 = - 4
Slope = ( - 4 - 6 ) / ( 6 - 6 )
= - 10 / 0
Slope = not defined
Note : -
Any number who denominator is 0 is undefined.
If 1 pair of socks cost $2.50 and 2 pairs of socks cost $5, how much do 4 pairs of socks cost? Plot this relationship as a point in the coordinate plane, with price as the Y variable. (6th grade math, FRECKLE)
Answer:
$2.50 × 4 = $10
so $10 is equal to 4 pairs of socks.
The next model of a sports car will be 12.6% less than the current model. The current model is 32,000. How much will the price decrease? How much will the next model be?