Answer:
18x^2-45x
Step-by-step explanation:
-9x(5-2x)
-9x*5=-45x
-9x*-2x=18x^2
18x^2-45x
What is 3 over 3 over 8?
Answer:
1/8
Step-by-step explanation:
What is the product of all the even integers from -6 to 8?
NEED HELP ON THIS QUESTION VERY EASY
Answer: B.
Step-by-step explanation: I UNDERSTAND HOW FRUSTRATING IT IS TO PUT AN ANSWER AND NO ONE ANSWERS IT, I DO, SO ALL I ASK IS FOR YOU TO GIVE ME BRAINLIEST. THANK YOU.
Answer:
b ive never had a brainliest ever in my life so can i have one
Step-by-step explanation:
pls GIVE ME BRAINLIEST not trynna demand
I dont understand this
1. How much would the following items cost if they were 50% off?
TV: $349.95
shoes: $55.00
boat: $9,499.99
A rocket is fired vertically into the air at 40 m/s. The expression
--5+2 + 40t + 20 gives the rocket's height after t seconds. Factor this
expression.
Answer:
-5(t² - 8t - 4)
Step-by-step explanation:
Step 1: Define
-5t² + 40t + 20
Step 2: Simplify
Factor - GCF: -5(t² - 8t - 4)Here, we cannot factor the quadratic and to solve for the roots we will need to use the Quadratic Formula.
Ariane borrows $200 on a 6−year loan. She is charged 5% simple interest per year. How much interest is she charged for 6 years? What is the total amount she has to pay back?
After 6 years, Ariane is charged $
in interest. She pays a total amount of $
.
Answer:
she is charged 80 in interest for 4 years, the total she has to pay back is 480
Step-by-step explanation:
PLEASE HELP ITS DUE SOON
How can you subtract mixed numbers when the fraction in the first mixed numbers is less than the fraction in the second mixed number?
When subtracting mixed numbers, if the fraction in the second mixed number is larger than the fraction in the first mixed number, rewrite the first mixed number by regrouping one whole as a fraction. Alternatively, rewrite all fractions as improper fractions and then subtract.
What's 20% of 30% of 10% of 500?
Answer:
the answer is 3
Step-by-step explanation:
20% of 30% of 10% of 500 is 3
Step-by-step explanation:
The Education Foundation hosted an annual fundraising dinner. There were 24 dinner tables with 8 chairs at each table. Each dinner ticket cost $12.50. If of the dinner tables were full, how much money was raised from the dinner ticket sales?
$225
⊝
$1,800
⊝
$2,400
⊝
$3,200
Answer:
2,400
Step-by-step explanation:
24 times 8 equals 192, 192 times 12.50 equals 2,400. If this does not help, sorry.
The amount raised is $2400.
Option C is the correct answer.
What is an expression?An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
There were 24 tables with 8 chairs at each table.
Total chairs.
= 24 x 8
= 192 chairs
Each dinner ticket cost $12.50.
And all the dinner tables were full.
So,
Total amount raised.
= 96 x 12.50
= 2400
Therefore,
The amount raised is $2400.
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what is the slope of this graph Algebra 1b
enter the measure of
Answer: I believe the answer is 45°
Step-by-step explanation: Hope it helps :)
Answer:
Step-by-step explanation:
sin M=8/22
[tex]\angle ~M=sin ^{-1}(\frac{8}{22}) \approx~21.32^\circ[/tex]
61. The 2003 Statistical Abstract of the United States reported the percentage of people 18 years of age and older who smoke. Suppose that a study designed to collect new data on smokers and nonsmokers uses a preliminary estimate of the proportion who smoke of .30. a. How large a sample should be taken to estimate the proportion of smokers in the population with a margin of error of .02
Answer: Required minimum sample size = 2017
Step-by-step explanation:
Formula : Sample size(n) for population proportion(p):
[tex]n= p(1-p)(\frac{Z^c}{E})^2[/tex] , where E = Margin of error
If p = proportion of smokers
Given: p =0.30 and E=0.02
[tex]z^c[/tex] for 95% confidence level = 1.96
So,
[tex]n=0.30(1-0.30)(\dfrac{1.96}{0.02})^2\\\=0.30(0.70)(98)^2\\\\=2016.84\approx2017[/tex]
Hence, required minimum sample size = 2017
What is the distance between the points (4,
(4, 7) and (4, – 5)
O O units
O 2 units
o 4 units
O 12 units
Plzzzzz nowwwwwww
Answer:
2 units I used the distance formula
The LCM (12, 15, 20, k) = 420. What is the least possible value of k?
The least possible value of k is 7.
The given numbers;
12, 15, 20, k
LCM of 12, 15, 20, k = 420
The prime factor of each of the given is calculated as;
12 = 2² x 3
15 = 3 x 5
20 = 2² x 5
The LCM = 2² x 3 x 5 = 60
The least possible value of k is calculated as;
60k = 420
[tex]k = \frac{420}{60} \\\\k = 7[/tex]
Thus, the least possible value of k is 7.
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Use what you know about reflections of functions to match the graph to the function rule.
y = 3x
a
b
c
y = 3−x
a
b
c
y = −3x
a
b
c
On a coordinate plane, 3 exponential functions are on the graph. A goes through (negative 1, 3) and (0, 1) and approaches the x-axis in quadrant 1. B goes through (1, 1) and (1, 3) and approaches the x-axis in quadrant 2. C goes through (0, negative 1) and (1, negative 3) and approaches the x-axis in quadrant 3.
pick a,b or c for each answer choice.
need it by tomorrow
Answer:
B A C
Step-by-step explanation:
this website is the only reason im graduating LOL. love yall
The exponential functions are plotted on the graph and solved
1) y = 3ˣ = b)
2) y = 3⁻ˣ = a)
3) y = -3ˣ = c)
What are the laws of exponents?When you raise a quotient to a power you raise both the numerator and the denominator to the power. When you raise a number to a zero power you'll always get 1. Negative exponents are the reciprocals of the positive exponents.
The different Laws of exponents are:
mᵃ×mᵇ = mᵃ⁺ᵇ
mᵃ / mᵇ = mᵃ⁻ᵇ
( mᵃ )ᵇ = mᵃᵇ
mᵃ / nᵃ = ( m / n )ᵃ
m⁰ = 1
m⁻ᵃ = ( 1 / mᵃ )
Given data ,
Let the exponential equation be represented as A
Now , the value of A is
a)
y = 3ˣ
Now , the exponential function is plotted on the graph and is represented by the line b
b)
y = 3⁻ˣ
Now , the exponential function is plotted on the graph and is represented by the line a
c)
y = -3ˣ
Now , the exponential function is plotted on the graph and is represented by the line c
Hence , the exponential equations are solved
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The complete question is attached below :
Use what you know about reflections of functions to match the graph to the function rule.
1) y = 3ˣ
2) y = 3⁻ˣ
3) y = -3ˣ
Explain how to round to the hundredths 382.992
[tex] \frac{ \frac{1}{ x} - \frac{1}{12} }{x - 12} [/tex]
how do i solve when looking for the limit as x approches 12?
Answer:
[tex]\lim_{x \to 12} \frac{\frac{1}{x}-\frac{1}{12} }{x-12} =\frac{-1}{144}[/tex]
Step-by-step explanation:
Step 1: Define
[tex]\lim_{x \to 12} \frac{\frac{1}{x}-\frac{1}{12} }{x-12}[/tex]
Step 2: Solve
Numerator; Common denominator: [tex]\lim_{x \to 12} \frac{\frac{12}{12x}-\frac{x}{12x} }{x-12}[/tex]Numerator; Combine like terms: [tex]\lim_{x \to 12} \frac{\frac{12-x}{12x} }{x-12}[/tex]Rewrite entire fraction: [tex]\lim_{x \to 12} \frac{12-x}{12x} \div x-12[/tex]Rewrite operation: [tex]\lim_{x \to 12} \frac{12-x}{12x} \cdot \frac{1}{x-12}[/tex]Multiply: [tex]\lim_{x \to 12} \frac{12-x}{12x(x-12)}[/tex]Factor numerator: [tex]\lim_{x \to 12} \frac{-(x - 12)}{12x(x-12)}[/tex]Simplify: [tex]\lim_{x \to 12} \frac{-1}{12x}[/tex]Evaluate limit: [tex]\frac{-1}{12(12)} =\frac{-1}{144}[/tex]PLEASE HELP!!!!! WORTH 60 POINTS!!!
Answer:
graph a straight line through coordinates (0, 5) and (1, 3) then shade above that line
Step-by-step explanation:
(0, 5) is the y-intercept 5 and then from that point you go down 2 units and right 1 unit which would leave you at coordinate (1, 3) then you shade above that line since y is more than that line (-2x + 5)
Answer:
See in picture provided
Can someone help me please
Answer:
-50
Step-by-step explanation:
Since the rate is -2 degrees per minute and you need to know what the temperature will be after 25 minutes, simply multiply the two numbers:
= -2 x 25
= -50
It will reach a temperature of -50 degrees after 25 minutes.
6th grade math I mark as brainliest
Answer:
the answer is d :)
Step-by-step explanation:
guys can you help me
plzzzz help giving 30 points
Answer:
why is there only 5 points?
Step-by-step explanation:
Zachary purchased a computer for $1,500 on a payment plan. Six months after he purchased the computer, his balance was $600. Eight months after he purchased
the computer, his balance was $300. What is an equation that models the balance y after x months?
The equation models the balance y after x months
9514 1404 393
Answer:
y = 1500 -150x
Step-by-step explanation:
Apparently, we're to assume that the balance is linear function of the number of months. We are given 3 points:
(0, 1500), (6, 600), (8, 300)
Any two of these can be used to write the equation of the line using the 2-point form:
y = (y2 -y1)/(x2 -x1)(x -x1) +y1
y = (600 -1500)/(6 -0)(x -0) +1500
y = -900/6x +1500
y = 1500 -150x . . . models the balance after x months
Evaluate. 7m + 2n - 8p divided by n for m= -4, n= 2 and p = 1.5
A. –30
B.–10
C. –19
D. –22
Answer:
7*-4= -28 +4-12/2
-24-6
=-30
Step-by-step explanation:
Use the information below to complete the steps of this Sample Work assignment by hand.
A high school club is conducting a cupcake sale at a local fair to raise money for a trip. The club members
are baking a total of 444 cupcakes. Each cupcake will sell for $3.00. The display tables cost $75.00 to rent.
Part A (2 points)
If n is the number of cupcakes sold and p is the profit earned, which is the independent variable and which is
the dependent variable? Explain.
Independent variable:
Dependent variable:
Explain:
Part B (2 points)
Write an algebraic equation that represents the profit.
is the relationship between n and p a function? Explain.
Answer:
cookie
Step-by-step explanation:
A company places a seven-digit serial number on each part that is made. Each digit of the serial number can be any number from 0 through 9. Digits can be repeated in the serial number. How many different serial numbers are possible?
Answer: 10,000,000 different numbers are possible.
Step-by-step explanation:
Given: Serial number is of 7 digits.
Choices for digits = 10 (0 to 9)
If digits can be repeated, then by Fundamental principle of counting,
The different serial numbers are possible = [tex]10^7[/tex]
= 10,000,000
Hence, the different serial numbers are possible = 10,000,000
What is the probability that six consecutive integers will be chosen as the winning numbers in a lottery where each number chosen is an integer between 1 and 40 (inclusive)?
Answer:
0.00000911843
Step-by-step explanation:
Since the number chosen is an integer between 1 and 40 (inclusive), it means that the number of terms is 40.
Thus; n = 40
Probability that 6 integers (r = 6) which is number of possible outcomes will be gotten without repetition is gotten by the combination formula which is;
C(n, r) = n!/(r!(n - r)!)
C(40, 6) = 40!/(6!(40 - 6)!)
C(40,6) = 3838380
Now, to select 6 consecutive integers, it can be done in different combinations such as;
(1 - 6, 2 - 7, 8 - 13,...e.t.c)
Total number of favorable outcomes will be 35.
Now,probability that six consecutive integers will be chosen as the winning numbers is;
P(that six consecutive integers will be chosen as the winning numbers) = number of favorable outcomes/number of possible outcomes = 35/3838380 = 0.00000911843
Alejandro bought $3.50 worth of pencils and erasers at the school store. Pencils cost $0.50 apiece, and erasers cost
$0.75 apiece. Which equation written in standard form represents the number of pencils, p, and the number of erasers,
e, that Alejandro bought?
O 0.75e = 3.50 -0.50p
O 0.50p + 0.75e = 3.50
O 3e = 14 -2p
O 2p + 3e = 14
Please help I need 6 answers
can you please explain the question a bit
