Answer:
20
Step-by-step explanation:
2 1/2 = 20/8
Solve using the quadratic formula. (Identify a, b, and c. Write the
formula. Show the substitution step.
8n^2 + 4n -2 = 0
Answer:
Step-by-step explanation:
Here a = 8, b = 4 and c = -2. The discriminant here is b^2 - 4ac, which, when the above coefficients are substituted, results in:
discriminant = (4)^2 - 4(8)(-2), or 16 + 64, or 80.
The solutions are:
-(4) ± √80 -4 ± 4√5 4(-1 ±√5) -1 ± √5
n = ------------------ = ----------------- = --------------- = --------------
2(8) 16 4^2 4
A farmer sells 9.7 kilograms of pears and apples at the farmer's market. 4 5 of this weight is pears, and the rest is apples. How many kilograms of apples did she sell at the farmer's market?
Answer:
if 4 5 is 4.5 then the answer would be 5.2
Step-by-step explanation:
9.7-4.5
Read the problem and select the correct inequality.
A table titled inequality symbols contains the symbols for less-than and greater-than.
It took Howard more than 40 minutes to finish a race. Let t represent Howard’s finishing time.
40 > t
t = 40
t > 40
t – 40 this go to it.
Answer:
C
Step-by-step explanation:
Hope it helps ¯\_(ツ)_/¯
Answer:
the answer is C :))
Step-by-step explanation:
The time required to complete a job varies inversely as the number of people working.
It took 3 hours for 8 electricians to wire a building. How long would it have taken 6 electricians to do the job?
determine the type of symmetry
Please help!! I have no clue!
Which points are reflections of each other across the y-axis?
8
-2
2
4
8
8
X
--
-B
(-7, -3) and (7.–3)
(-5, 4) and (5. -4)
( 71 RX and X
Answer:
A. ( -7, -3) and ( 7, -3)
Step-by-step explanation:
I looked at the picture and I know it is because I already learned this
Pls help I will give brainliest
Answer:
the first choice
Step-by-step explanation:
Henry went to an amusement park with $100.00 and spent all of it. He spent of the money on parking. He spent $42.50 on admission to the park. He spent 20% of the money on food. He paid a $12.75 fee for admission into a water park located inside the amusement park. He spent the remainder of his money on games that cost $1.75 each. How many games did Henry play?
Answer:
19 games
Step-by-step explanation:
Henry went to an amusement park with $100.00 and spent all of it.
Starting amount = $100.00
He spent $42.50 on admission to the park.
Amount left = $100.00 - $42.50
Amount left = $57.5
He spent 20% of the money on food.
Amount spent = 20% of amount left ($57.5) = $11.5
Amount left = $57.5 - $11.5 = $46
He paid a $12.75 fee for admission into a water park located inside the amusement park.
Amount left = $46 - $12.75
Amount left = $33.25
He spent the remainder of his money on games that cost $1.75 each. How many games did Henry play?
Number of games = Amount left / Cost per game
Number of games = $33.25 / $1.75 = 19
1. What is the value of the y-coordinate of the solution to the system of equations x + 2y = 9 and x - y = 3? 1) 6 3) 3 2) 2 4) 5
Answer:
2) 2
Step-by-step explanation:
Subtract each equation from each other
x + 2y = 9
-x+ y = -3
3y = 6
3 3
So y = 2
Find the absolute value of... |7|
-7 or 7?
Answer:
7
Step-by-step explanation:
absolute value is the positive numeric value of the number between the lines.
How many solutions does the system have?
Answer:
you have exactly one
Step-by-step explanation:
hope it helped
The price of a new car is $42,500. If the sales tax rate is 6.5%, then how much sales tax is being charged
Answer:
$45,262
multiply 45000*6.5%
Step-by-step explanation:
Answer:
$2762.5
Step-by-step explanation:
6.5%×42,500=2762.5
$2762.5 is the sales tax being charged.
$45,262.5 is the total price.
A small plant manufactures riding lawn mowers. The plant has fixed costs of GHC48,000 per day and a variable cost of GHC1,400 per unit produced. The mowers are sold for GHC1,800 each. The cost and revenue functions are in that order and , where is the total number of mowers produced and sold each day. How many units must be manufactured and sold each day for the company to break even?
Answer:
120
Step-by-step explanation:
The break-even point is the point where revenue =cost
48,000+ 1400x = 1800x
48000=400x
X=48000/400
X=120
Equilibrium quantity is 120 mowers
maths help please!!!!!!
Answer:
VW = √2
Step-by-step explanation:
y = x+1
x²+y²+2x+2y+1=0 (x²+2x+1) + (y²+2y+1) = 1
(x+1)² + (y+1)² = 1 : Circle: (x-h)² + (y-k)² = r² Center (O): (h , k) = (-1 , -1) r = 1
solve for roots: x²+(x+1)²+2x+2(x+1)+1=0
2x² + 6x + 4 = 0 x²+3x+2=0
(x+1)(x+2)=0
x = -1 or x = -2
y = 0 or y = -1
V and W: (-1 , 0) and (-2 , -1) forms a 90° center angle
√vw = √1²+1² = √2
Which statement is not true about the absolute value of -6
Answer:
the first one
Step-by-step explanation:
it doesn't describe that
Answer: It describes the distance between 6 and -6 on the number line.
Step-by-step explanation:
Enter the exponential function using t (for time) as the independent variable to model the situation. Then
find the value of the function after the given amount of time.
The value of a textbook is $63 and decreases at a rate of 14% per year for 13 years.
The exponential function that models the situation is y = 63(0.86).
After 13 years, the value of the textbook is $
Answer:
An exponential function is given by;
f(x)=ba^x
where a is any value greater than 0,
b is the intial value
when a>1 then f(x) is defined as an exponential growth
when a<1 then f(x) is defined as an exponential decay
From the our function;
f(t)=15000(0.86)^t
a=0.86<1
b=15000
since a<1, the function will be an exponential decay.
Step-by-step explanation:
why do banks charge for transaction fees?
Answer:
To make a profit and pay operating expenses, banks typically charge for the services they provide. When a bank lends you money, it charges interest on the loan. Even fee-free checking and savings accounts have some fees.
Step-by-step explanation:
have a nice day ;)
Answer:
A possible answer could be:
Charging small fees for a specific service is another way to pay for that service and to help the bank make money. Fees are also used to discourage bad behavior, like making overdrafts.
Step-by-step explanation:
What is the answer please help me
Answer:
C
Step-by-step explanation:
1.58 x n = z
another way of showing:
z = 1.58n
What shapes have a trapezoidal cross section
Help I don’t know this and I really need help you don’t have to explain them if you want :)
Answer:
1.) false, was rotated 90 degrees clockwise
2.) false, was flipped over y-axis
3.) true
Step-by-step explanation:
which point is on the line x+2y=5
Answer:
1
Step-by-step explanation:
what is the LCM for 9, 18 and 72
Answer:
72
Step-by-step explanation:
9 = 3^2
18 = 2 * 3^2
72 = 2^3 * 3^2
For LCM use common and not common factors with greater exponent.
Use 2^3 and 3^2.
LCM = 2^3 * 3^2 = 8 * 9 = 72
Answer: 72
HELP FOR BRAINLESS .... PLSSSSS
Answer: A, B, D
A, B, and D are equations because an equation has an equal sign that connects two expressions together (i.e., equations have equal signs). In this case, only A, B, and D have equal signs.
The distance traveled can be calculated using the formula D = s · t where s is the speed and t is the total time. Which of the situations below represent a total distance of 400 km? Select all that apply.
A) 65 km/hr for 5 hours
B) 100 km/hr for 4 hours
C) 50 km/hr for 8 hours
D) 80 km/hr for 5 hours
Answer:
B. 100km/h x4hours =400km
distance is bigger than time and speed..so you have to multiply .
Given the two functions, which statement is true?
(function is in picture)
A) g(x) is stretched vertically by a factor of 2 and shifted to the right 4 units compared to f(x).
B) g(x) is shrunk vertically by a factor of ½ and shifted to the right 4 units compared to f(x).
C) g(x) is stretched vertically by a factor of 2 and shifted to the left 4 units compared to f(x).
D) g(x) is shrunk vertically by a factor of ½ and shifted to the left 4 units compared to f(x).
Answer:
Option D
Step-by-step explanation:
f(x) = [tex]\text{log}_{15}x[/tex]
Transformed form of the function 'f' is 'g'.
g(x) = [tex]\frac{1}{2}\text{log}_{15}(x+4)[/tex]
Property of vertical stretch or compression of a function,
k(x) = x
Transformed function → m(x) = kx
Here, k = scale factor
1). If k > 1, function is vertically stretched.
2). If 0 < k < 1, function is vertically compressed.
From the given functions, k = [tex]\frac{1}{2}[/tex]
Since, k is between 0 and [tex]\frac{1}{2}[/tex], function f(x) is vertically compressed by a scale factor [tex]\frac{1}{2}[/tex].
g(x) = f(x + 4) represents a shift of function 'f' by 4 units left.
g(x) = f(x - 4) represents a shift of function 'f' by 4 units right.
g(x) = [tex]\frac{1}{2}\text{log}_{15}(x+4)[/tex]
Therefore, function f(x) has been shifted by 4 units left to form image function g(x).
Option D is the answer.
can somebody help me with this question
Answer: C
Step-by-step explanation:
The area of a circle is ∏r2- (Pi)(Radius)-squared
The Answer is C
I need helppppppppppppppppppppppppppppppppppppppp
Answer:
C. 6.2 inches
Step-by-step explanation:
There are many ways to do this but I like to cross the miles out by putting it on the denominator
927 miles * 1 inch/150 miles = 6.18
Rounded is 6.2
Answer:
6.2
Step-by-step explanation
it should be this I took the same test last year let me know if Im worng
Please tell me or explain how u got the answer
Answer:
C
Step-by-step explanation:
like terms are terms that are the same, so in c its 7x and 9x. so when you add them it will be 16x, or you can multiply them or do whatever you want with them
A line segment has the endpoints P(4, 7) and Q(6, 7). Find the coordinates of its midpoint M.
Write the coordinates as decimals or integers.
Answer:
(5, 7)
Step-by-step explanation:
M = (x1 + x2/2 , y1 + y2/2)
M = ( 4 + 6 /2 , 7 + 7 / 2)
M = 5, 7