Given fx) = 10– 2x, find (7).
оооо
7
56
Answers
Answer:
Substitute the value of 7 into the variable x. Then solve the equation.
f(7) = 10 - 2(7)
f(7) = 10 - 14
f(7) = -4 is the answer.Related Questions
Determine which expression is equivalent to the expression 5 over 4 times g minus 3 minus 7 over 12 times g minus the expression one over 3 times g plus 15
Answers
Answer:-4/15 - 17
negative 4 over 15 plus negative 17
Explain: negative 4 over 15 plus negative 17
The value of the nth term in a sequence of numbers given by the expression 2n -3. What is the 8th term in the sequence?
A. -22
B. 11
C. 13
D. 26
Answers
Answer:
C. 13
Step-by-step explanation:
If the nth term is given by 2n-3 and you're being asked for the 8th term, n=8, plug in 8 for n. 2(8)-3=13
Match each expression to the scenario it represents.
Expressions
Scenario
the price of a game that’s been discounted
18% off its list price (x)
arrowRight
the price of a toy that sells for 18% more
than the amount (x) needed to build the toy
arrowRight
the volume of water remaining in a tank after
of its original volume (x) is drained out
arrowRight
the total amount of flour in a bakery after receiving new stock equal to of its current stock (x)
arrowRight
Answers
Using proportions, the amounts are given as follows:
18% off: 0.82x.18% more: 1.18x.Volume after \(\frac{3}{10}\) is drained out: \(\frac{7x}{10}\)New stock: \(\frac{13x}{10}\)What is a proportion?A proportion is a fraction of a total amount, and the measures are related using a rule of three.
In this problem, the amounts are found as follows:
18% off its list price (x), that is, 82% of x, hence 0.82x.Sells for 18% more, that is, 118% = 1.18 of x, hence 1.18x.When three tenths of the volume is drained out, the remainder is 100% = 1x subtracted from that, hence \(\frac{7x}{10}\).For the new stock, three tenths of x plus the current stock of x, hence \(\frac{3}{10}x + x = \frac{13}{10}x\).More can be learned about proportions at https://brainly.com/question/24372153
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Omar wants to rent a boat and spend at most $40. The boat costs $6 per hour, and Omar has a discount coupon for $8 off. What are the possible numbers of hours Omar could rent the boat?
Use t for the number of hours.
Write your answer as an inequality solved for t.
Answers
Answer:
8 ≥ t
Step-by-step explanation:
The inequality that best models the situation is 40 ≥ 6t - 8, since Omar wants to spend at most (i.e., no more than) $40, the boat costs $6/hr, and he has a discount coupon for $8 off.
Now we can solve for t:
Step 1: Add 8 to both sides:
(40 ≥ 6t - 8) + 8
48 ≥ 6t
Step 2: Divide both sides by 6 to solve for t:
(48 ≥ 6t) / 6
8 ≥ t
Thus, Omar can rent the boat for no more than 8 hours in order to not exceed his $40 spending limit.
Pls help
Spam answers will be reported
Give a good explanation
Answers
Answer:
X = 20
The picture explains my answer
Answer:
The answer is X = 20
13x+22x2 +20x+18x2 7.3x+9x2 +6x+10x2
PLZZZZ HELPPP ITS DUE TODAY!!!
Answers
Answer:
I’m answering so the other dude can get brainliest lol
Step-by-step explanation:
Ok have a good day and BRAINLY DO NOT DELETE THIS ANSWER
Tell whether the graph represents a linear nonproportional or proportional relationship
Answers
Answer:
nonproportional.
Step-by-step explanation:
Answer:
Nonproportional
Step-by-step explanation:
Sample Answer: Make a table with inputs showing the number of bottles of water and outputs showing the total cost of the water. Use 1, 2, 3, and 4 bottles for the inputs. Find the corresponding outputs. Plot the ordered pairs in the table of the form (input,output).
Which instructions did you include in your explanation? Check all that apply.
Identify the input.
Identify the output.
Create a table for four input values.
Plot the points from the table.
Answers
The instructions that you would include in your explanation are:
Identify the output.
Create a table for four input values.
Plot the points from the table.
The instructions to be includedIn the given question, a series of instructions are provided. To properly explain your process, you have to explain how you got the output. There is no need of explaining the input as they are already provided.
Next, you will Show how you created the table and why you created it in that way. Finally, indicate how the points were plotted on the table. An explanation such as this will help anyone to follow through.
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Answer:1 to 2
2 to 4
Step-by-step explanation:
The table below shows prices for breakfast items at a food truck. Jeffrey ordered 2 breakfast tacos with bacon, an order of potato hash and a cup of coffee. The sales tax for the order was $0.75. He paid for his breakfast with a $10 bill. Breakfast Menu Item Price 1 Breakfast taco - egg & cheese $2.00 1 Breakfast taco - with bacon $2.25 1 Order of potato hash $1.50 Cup of coffee $0.50 How much change should Jeffrey receive from a $10 bill? O A $2.75 O B. $6.50 OC. $8.50 OD. $4.25
Answers
Equation: 2(2.25)+1.50+0.50+0.75
Because he bought 2 breakfast tacos with bacon and the price of that is $2.25 for 1 then he bought a potato hash for $1.50 and a cup of coffee for $0.50 and the tax is $0.75
Answer: 2.75. In change
Step-by-step explanation:
First add the two breakfast tacos, since one is 2.25$ Two would be 4.50$ Next add the potato hash and cup of coffee, you should get 2.00$ After that add the tacos with the coffee and potato hash which equals 6.50$ and don't forget to add your 0.75. Tax to the 6.50$ once you get 7.25. You need to do 7.25. - 10.00 which would get you your change of 2.75$
HELP PLS ANSWER
Which set of ordered pairs represents a function?
Answers
Answer:
the answer is d
Step-by-step explanation:
the x values don't repeat so therefore It is a function.
Answer:
D
Step-by-step explanation:
It's D bc you can have two of the same inputs equaling differnt outputs. You could of it as 4+3 = 7, 9, 2, and 1 or whatever numbers, its not true it only equals 7. Hope that helps
Someone help me with this ASAP!
Answers
Answer:
48.1 somewhere around 36 and 57
Step-by-step explanation:
Answer:
36-57
Step-by-step explanation:
18.50 x 2.6 = 48.10, which is between those two numbers
Please Hurry. I need this answer quickly please.
Answers
Answer:63
Step-by-step explanation:
multiply 72 by 7 then divide i by 8
(72×7)/8
=63
It's 63.
simplify the equation 7/8×72 multiple 7×9 solution is 63
Reuben has put his coins into 2 stacks. Each stack has the same number of coins. There are 12 coins total. How many coins are in each stack?
Answers
Answer:
6
Step-by-step explanation:
12 ÷ 2 = 6
Answer:
6 coins
Step-by-step explanation:
Since the coins are split into two stacks of equal amount, both stacks must have the same number of coins and must add up to 12, represented in variables is:
\(2x=12\\x=6\)
Where x is the number of coins in a single stack.
look at the picture below
Answers
Answer: ¹⁄₂₀ ( one twentieth)
Find common denominator
Subtract
Sorry if i couldn't help
Ruth's dining room is 6 yards wide and 9 yards long. Ruth wants to install a new wood floor. It will cost $8.00 per square yard. How much will Ruth's new floor cost?
Answers
Ruth’s new floor cost $432.
The cost can be calculated as follows.
First, calculate the area of dining room. Use the formula of rectangle area (width x length)
Area = width x length
= 6 yd x 9 yd
= 54 sq yd
Second, calculate the total cost.
Cost = 54 sq yd x $ 8 per sq yd
= $ 432
Hence it cost $ 432 to install the new wood floor.
Read more on rectangle here
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Answer:
$432
Step-by-step explanation:
1. Find the area of the dining room. The equation for finding the area is Length x Width = Area, so, 9x6=54 square yards.
2. Then, since each square yard is $8.00, multiply 54 and 8 to get $432.
Khan Academy
Many people require more than one attempt to pass the driving test for a driver
123456
Many people require more than one attempt to pass the driving test for a
driver's license.
Tests taken
The dot plot gives the number of times 21 people took the driving test in
order to earn their driver's license.
Get Al Guide
Describe the distribution of the number of tests taken.
Shape: The distribution of number of tests taken is roughly symmetric
Center: The median of the number of tests taken is
Spread: The range of the number of tests taken is
Y
Donate C
tests.
tests.
Answers
The range of the number of tests taken is 9.
Given that, the dot plot gives the number of times 21 people took the driving test in order to earn their driver's license.
From the given dot plot,
Number Frequency
1 7
2 9
3 3
4 1
5 0
6 1
Shape: The distribution of number of tests taken is non symmetric.
Center: The median of the number of tests taken is 3
Spread: The range of the number of tests taken is 9-0 = 9
Therefore, the range of the number of tests taken is 9.
Learn more about the median here:
https://brainly.com/question/28060453.
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What is the simplified form of the expression 8x + 3 – 4x – 5?
11x - 9
4x - 8
12x -2
4x -2
Answers
Answer: The answer is D.
Step-by-step explanation: I got it right on T4L
what is the maximum number of 14 pound turkeys that can be purchased with the money donated while still purchasing 100 total turkeys? 10 pound turkeys cost 9.25 and 14 pound turkey cost 12.75. Money limit is $1000.
Answers
Answer:
64.05$
Step-by-step explanation:
please write a function for the points (1/3,0) (-2 3/4,0) and (0,-5) and explain the steps.
thank you!
Answers
The function for the points are y = -15x - 5
How to determine the functionFrom the information given, we have that;
The points are;
(1/3,0) (-2 3/4,0) and (0,-5)
Using the point-slope form of a linear equation, we have;
y - y₁ = m(x - x₁)
Such that;
m is the slope of the liney - y₁ and (x - x₁) are the pointsUsing (1/3, 0) and (0, -5), we have that the slope is;
m = (0 - (-5))/0 -1/3)
expand the bracket
= 5 / (-1/3)
= -15
Now, take any of the given points and substitute the values
Using (1/3, 0), we get;
y - 0 = -15(x - 1/3).
y = -15x - 5.
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The function for the points solved by (1/3,0) (-2 3/4,0) and (0,-5) solved by point slope form is \(a=-15b-5\)
We have given the points:
(1/3,0) (-2 3/4,0) and (0,-5)
Using the formula of linear equation
\(a-\)\(a_{1}\)\(=x[b-b_{1}]\)
Where we will consider (1/3,0) = \(a-a_{1}\) and (0,-5) = \(b-b_{1}\)
that is 1/3 = \(a\), 0 = \(a_{1}\) and
0 = \(b\), -5 = \(b_{1}\)
\(x\) refers to the slope of line (take any variable)
Now for finding the value of \(x\),
\(x=a-a_{1}/b-b_{1}\)
inserting the values,
\(x=[0-[-5]]/[0-1/3]\\x= -15\)
Substitute the value of \(x\) in the equation
\(a-0=-15[b-1/3]\)
By simplifying the equation, we get
\(a=-15b-5\)
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If Nina is N years old now and Maryna is M years old now. Write Maryna's age in 4 years?
Answers
Answer:
would it just be M+4
Step-by-step explanation: that kinda confuses me
Answer:
Step-by-step explanation:
i believe nx4=y
Two sides of a four-sided figure have negative slopes. Which are the endpoints of the sides of this figure? (–4, –4), (–4, –1), (–1, –4), (–1, –1) (–2, –4), (–1, –1), (1, –1), (2, –4) (1, 1), (2, 4), (5, 4), (4, 1) (1, 4), (2, 1), (5, 1), (4, 4)
Answers
Answer:
(1,4) (2,1) (5,1) (4,4)
Step-by-step explanation:
The options are:
(-4,-4) (-4,-1) (-1, -4) (-1,-1)
(-2,-4) (-1, -1) (1,-1) (2, -4)
(1,1) (2,4) (5, 4) ( 4,1)
(1,4) (2,1) (5,1) (4,4)
The only one which has two sides with negative slopes is the last one.
Slope of the side that passes through (1,4) and (2,1): (4 - 1) / (1 - 2) = -3
Slope of the side that passes through (4,4) and (5,1): (4 - 1) / (4 - 5) = -3
Answer: D. (1,4) (2,1) (5,1) (4,4)
Step-by-step explanation: On Edgenuity!!!!!!!!!!!!
WRONG ANSWERS WILL BE REPORTED- PLS GIVE EXPLANATION WTIH ANSWER
8TH GRADE MATH
Answers
⋅
10
6
30000
2.85
⋅
10
6
30000
Convert the fraction to a decimal by dividing the numerator by the denominator.
95
95
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the
10
10
. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
9.5
×
10
1
Answer:
9.5×10¹
Step-by-step explanation:
You want the quotient of 2.85×10⁶ and 30,000 written in scientific notation.
DivisionIt is convenient to adjust the exponents of the operands so the coefficient of the quotient has a value between 1 and 10.
\(\dfrac{2.85\times10^6}{30,\!000}=\dfrac{2.85\times10^6}{0.3\times10^5}=9.5\times10^{6-5}=\boxed{9.5\times10^1}\)
__
Additional comment
Your calculator can format the quotient in scientific notation for you.
<95141404393>
HELP PLS NO LINKS JUST ANSWER THANKS
Answers
Complete the following to show how the expression can be simplified using the Commutative and Associative Properties of Multiplication.
Enter the correct numbers in the boxes.
(−0.5)(−7)(2)= ( )( )(2)
=(−7)[( )( )]
=(−7)( )
=
Answers
Answer:
\((-0.5)(-7)(2)= (-7 )(-0.5 )(2)\\=(-7)[( -0.5)(2 )]\\=(-7)( -1)\\=7\)
Step-by-step explanation:
\((-0.5)(-7)(2)= (-7 )(-0.5 )(2)\) Here you apply the commutative law (\(ab = ba\)).
\((-7)[( -0.5)(2 )]\) Here apply the associative law (\(a(bc) = (ab)c\)).
\((-7)( -1) = 7\) A negative number by a negative number is equal to positive.
=(-7)[(-0.5)(2)]
=(-7)(-1)
=-7
Jim bought 5 packs of red bouncy balls, 2 packs of yellow bouncy balls, and 7 packs of green bouncy balls. There were 7 bouncy balls in each package. How many bouncy balls did Jim buy in all?
Answers
Answer:
108 bouncy balls
Step-by-step explanation:
2*7=14
5*7=35
7*7=49
14+35+49+108
How is the domain of a function related to the numbers in the sequence?
How is the range of the function related to the numbers in the sequence?
Answers
Answer:
A sequence is a function whose domain is the set of natural numbers or a subset of the natural numbers. We usually use the symbol an to represent a sequence, where n is a natural number and an is the value of the function on n.
What is the answer to both of these fill in the blanks
Answers
why can't 5√2x be simplified?
Answers
Answer:
You can't simplify 5√2
The radical of 2 cannot be simplified.
It doesn't matter that there's a variable, the coefficent cannot be simplified anymore.
A key code must contain 4 numerals. There are 10 numerals available. Using
these numerals, how many different key codes may be created?
O A. 180
O B. 210
O C. 3,060
O D. 5,040
Answers
Answer:
C
Step-by-step explanation:
The average change in a company’s sales income was $9 million over 3 months. Determine the average change in sales income per month.
Answers
Explanation: 9 million divided by 3=3 million