Answers
Step-by-step explanation:
1. 2(d+9)
2(8+9)
2(17)
=34
2. d÷4
8÷4
=2
3. ef÷4
(3×4)÷4
12÷4
=3
4. 4f+d
(4×4)+8
16+8 =24
5. (5d-25)÷5
((5×8)-25)÷5
(40-25)÷5
15÷5 = 3
6. d2+7
(8×8) +7
64+7
=71
Expressions 2(d+9)=34, d/4=2, ef/4=3, 4f+d=24, 5d-25/5=-1, d²+7=23, d-4/2=0, 10(e+7)=100 and 2g/2=-1
What is Expression?An expression is combination of variables, numbers and operators.
Given,
d=8,
e = 3,
f=4, and g=-1
By replacing the values in expressions we need to solve.
1. 2(d+9)
Replace d as 8
2(8+9)=2(17)=34
2. d/4=2
8/4=2
3. ef/4=3
3×4/4=3
4. 4f+d=24
4(4)+8=16+8=24
5. 5d-25/5=-1
5(4)-25/5
-5/5=-1
6. d²+7=23
16+7=23
7. d-4/2=0
8.10(e+7)=100
10(3+7)=100
9. 2g/2=-1
2(-1)/2=-1
Hence, expressions 2(d+9)=34, d/4=2, ef/4=3, 4f+d=24, 5d-25/5=-1, d²+7=23, d-4/2=0, .10(e+7)=100 and 2g/2=-1
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Related Questions
5. Anna has 40 CDs in her music collection, 75% of her CDs are rock music. How many rock CDs does she have?
Answers
Answer:
30
Step-by-step explanation:
The age of Henry (y) is 3 times the age of Lydia (x). Find a direct variation equation
that relates the ages of Henry and Lydia.
here r the options a)y = x b) 150 million c) 1 million 500 thousand d) 150 thousand
Answers
Answer:
The answer is a). Your welcome
The direct variation equation that relates the ages of Henry and Lydia will be y = 3x.
What is a linear equation?A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.
The linear equation is given as,
y = mx + c
Where m is the slope of the line and c is the y-intercept of the line.
The age of Henry is 3 times the age of Lydia.
Let 'x' be the age of Lydia and 'y' be the age of henry.
A direct variation equation that relates the ages of Henry and Lydia. Then the equation is given as,
y = 3x
The direct variation equation that relates the ages of Henry and Lydia will be y = 3x.
More about the linear equation link is given below.
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I need help with my test please i have 4 minutes left
Answers
Answer:
$8466.15
Step-by-step explanation:
its 7330 * 0.155 which is 1136.15+7330 is 846.15
Hope this helps plz hit the crown :D
Answer:
$8,466.15
Step-by-step explanation:
so sorry i miscalculated!!
On an airplane, there are two seats on the left side in each row and three seats on the right
side. There are 160 seats altogether.
Answers
Answer:
I don't think you put the whole question, but if you're asking how many rows there are, it's 32
Step-by-step explanation:
Answer:
32 rows??
Step-by-step explanation:
If you are looking for rows it would be 32. A total of 5 seats in a row, 160 divided by 5, is 32.
The two top concert tour in 2016 were concert A and concert B. Based on average ticket prices, it cost a total of $1404 to purchase six tickets for concert A and six tickets for concert B. three tickets for concert B cost a total of $584. how much did an average ticket coast for each tour
Answers
Answer:
hhhhhhhhhhjh u hhhhhhhhhhggh
Can you help me with this problem please. I will mark brainlist
Answers
Answer:
5.5 pt or 5 1/2 pt
Step-by-step explanation:
A pint is half of a quart, so multiply 2 3/4, or 2.75 by 2, and you'll get your answer. If
Answer:
Here you go! Work shown too!
Angle question<><><><>><><><><>
Answers
ummmmmmmmmmmmm 143 degrees (sorry for the um i needed 20 characters)
give me brain plz.
HELP 100 Points
If △NMK ≅ △TRP, then answer the following questions:
a. Complete the congruence statement: △MNK ≅ △_______
b. What side is congruent to ≅ ______
c. Solve for x. _____
Answers
Answer:
A-△MNK ≅ △RTP
B- TR≅NM
C- X=7
Step-by-step explanation:
I did the assignment loves.
The given statements to be completed are completed as follows;
A) △MNK ≅ △RTP
B) TR ≅ NM
C) x = 7
We are given that;
△NMK ≅ △TRP
This means that Triangle NMK is congruent to Triangle TRP.
A) The naming of △NMK is now △MNK. Thus, we have to now re-name Triangle TRP to match the naming of △MNK. Thus;
△MNK ≅ △RTP
B) From the 2 given triangles, we can see that TR and NM are the same length and also perpendicular lines.
Thus they are congruent to each other and as such;
TR ≅ NM
C) Since TR and NM are congruent to each other. Then;
TR = NM
Thus;
3x - 1 = 20
3x = 20 + 1
3x = 21
x = 21/3
x = 7
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Solve for s
3(s + 2) = 3
Answers
Answer:
s=-1
Step-by-step explanation:
Distribute the 3 to the (s+2) [tex]3(s+2)= 3s+6[/tex]
Subtract 6 from three [tex]3s+6=3 -> 3s=-3[/tex]
Divide -3 by 3 [tex]3s=-3 -> s=\frac{-3}{3}[/tex]
Simplify to -1
If -y-2x^3=Y^2 then find D^2y/dx^2 at the point (-1,-2) in simplest form
^^ the main problem i am having is when I have to use the quotient rule
Answers
Answer:
[tex]\frac{d^2y}{dx^2} = \frac{-4}{3}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightAlgebra I
FactoringCalculus
Implicit Differentiation
The derivative of a constant is equal to 0
Basic Power Rule:
f(x) = cxⁿf’(x) = c·nxⁿ⁻¹Product Rule: [tex]\frac{d}{dx} [f(x)g(x)]=f'(x)g(x) + g'(x)f(x)[/tex]
Chain Rule: [tex]\frac{d}{dx}[f(g(x))] =f'(g(x)) \cdot g'(x)[/tex]
Quotient Rule: [tex]\frac{d}{dx} [\frac{f(x)}{g(x)} ]=\frac{g(x)f'(x)-g'(x)f(x)}{g^2(x)}[/tex]
Step-by-step explanation:
Step 1: Define
-y - 2x³ = y²
Rate of change of tangent line at point (-1, -2)
Step 2: Differentiate Pt. 1
Find 1st Derivative
Implicit Differentiation [Basic Power Rule]: [tex]-y'-6x^2=2yy'[/tex][Algebra] Isolate y' terms: [tex]-6x^2=2yy'+y'[/tex][Algebra] Factor y': [tex]-6x^2=y'(2y+1)[/tex][Algebra] Isolate y': [tex]\frac{-6x^2}{(2y+1)}=y'[/tex][Algebra] Rewrite: [tex]y' = \frac{-6x^2}{(2y+1)}[/tex]Step 3: Differentiate Pt. 2
Find 2nd Derivative
Differentiate [Quotient Rule/Basic Power Rule]: [tex]y'' = \frac{-12x(2y+1)+6x^2(2y')}{(2y+1)^2}[/tex][Derivative] Simplify: [tex]y'' = \frac{-24xy-12x+12x^2y'}{(2y+1)^2}[/tex][Derivative] Back-Substitute y': [tex]y'' = \frac{-24xy-12x+12x^2(\frac{-6x^2}{2y+1} )}{(2y+1)^2}[/tex][Derivative] Simplify: [tex]y'' = \frac{-24xy-12x-\frac{72x^4}{2y+1} }{(2y+1)^2}[/tex]Step 4: Find Slope at Given Point
[Algebra] Substitute in x and y: [tex]y''(-1,-2) = \frac{-24(-1)(-2)-12(-1)-\frac{72(-1)^4}{2(-2)+1} }{(2(-2)+1)^2}[/tex][Pre-Algebra] Exponents: [tex]y''(-1,-2) = \frac{-24(-1)(-2)-12(-1)-\frac{72(1)}{2(-2)+1} }{(2(-2)+1)^2}[/tex][Pre-Algebra] Multiply: [tex]y''(-1,-2) = \frac{-48+12-\frac{72}{-4+1} }{(-4+1)^2}[/tex][Pre-Algebra] Add: [tex]y''(-1,-2) = \frac{-36-\frac{72}{-3} }{(-3)^2}[/tex][Pre-Algebra] Exponents: [tex]y''(-1,-2) = \frac{-36-\frac{72}{-3} }{9}[/tex][Pre-Algebra] Divide: [tex]y''(-1,-2) = \frac{-36+24 }{9}[/tex][Pre-Algebra] Add: [tex]y''(-1,-2) = \frac{-12}{9}[/tex][Pre-Algebra] Simplify: [tex]y''(-1,-2) = \frac{-4}{3}[/tex]Polly drove to the mall on a busy shopping day. She got to the mall parking lot at 12:31 P.M., but she didn't find a parking spot until 1:06 P.M. How long did it take Polly to find a parking spot?
Answers
Explanation:
8. What is the solution of the system? (1 point)
y= -3x
3x + 2y = 6
(2.6)
(-1,3)
(-2, 6)
(1.5, -4,5)
Answers
Brainlest and points !!
Answers
Answer:
ok
Step-by-step explanation:
Answer: D
Step-by-step explanation:
Evelyn spends 50% of his monthly budget on clothes and food.
(175 + 425)/1200 × 100
= 600/1200 × 100
= 50%
Help I don’t know the answer
Answers
Can someone please help me with 5 and 6? :)
Answers
Step-by-step explanation:
5) 2 lines are perpendicular
slope of line 1 =3
slope of line 2= _1/3
6)perpendicular
Find the slope of each line.
1) y=5/2x-5
Answers
y= 5/2x-5
∠ = 150 and∠ = 80. Find ∠. The diagram is not to scale
Answers
Answer:
I don't see the diagram but if you're adding to 360 degrees than the answer is 90
Step-by-step explanation:
Identify the function in this graph
Answers
Answer:
what's the graph?
Step-by-step explanation:
The sum of the digits of a two digit number is 9 When the digits are reversed the number increases by 9. Find the number.
Answers
Answer:45
Step-by-step explanation:
Let the unit place be ‘x'
Tenth place be y
The number is 10y+x
x+y = 9 (according to the condition) (1)
Digits are interchanged Unit place' y ‘& tenth place ‘ x'
New no is 10x +y
This is 9 more than the original number
10x+ y = 10y+x +9
10x-x+y-10y = 9
9x-9y= 9
x-y = 1 (dividing by 9) (2)
Adding the two equations
2x = 10
x= 5
Substituting the value of x in first equation
y = 4
The number is 45, the original number is 54 this is 9 more of the new number.
Ans :45
Cain has k songs stored on his MP3 player. Cain has 5 fewer songs than Steve. How many songs does Steve have? Express the answer in terms of k
Answers
He has k+5 songs.
100 points !!!!
Please help ASAP: What times 28,000 equals 4,410,483,661
Answers
Answer:
157517.273607
Step-by-step explanation:
Answer it 4410455661
after changing the amount of time he works Seth has begun earning a salary of $214,206 that is 5% less than before how much does Seth’s salary used to be
Answers
Answer:
seth's new old salary was $224,916
Step-by-step explanation:
You take 214,206 and multiply it by .05 which is 5%
you take the number u got from multiplying that and add it onto the existing "salary" which is $214,206 and 5% of 214,206 is 10,710. you then add that onto 214206 and u get ur answer. Hope this helped.
answer the following question
Answers
Answer:
a) x = 5
b) x = 4
Step-by-step explanation:
a) x = 5
You can get this with a calculator if you need by using the log function.
[tex]log_{2} 32 = x[/tex]
x = 5
b) x = 4
According to the product rule of exponents: [tex]a^{x} * a^{y} = a^{x + y}[/tex]
So, x + 11 = 15 --> x = 4
2/9 of the students in a school are in sixth grade. How many sixth graders are there if the school has 27 students?
Answers
Answer: 5.999 or just 6
Step-by-step explanation: 2/9 of 27
Answer:
6 sixth graders
Step-by-step explanation:
2/9 of 27 = 6
need help asapppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
Answers
Which would equal 78.5
So D is ur answer
Please! I'M IN A HURRY. 40 POINTS!
The graph of g is a vertical shrink of the graph if f. What can you say about the x-intercepts if the graphs of f and g. Is this always true? Explain.
Answers
Answer:ok ok your answer is...sample response!
g(x) = f(5x)
Step-by-step explanation:
We assume that "shrink by a factor of 1/5" means that horizontal distances on the graph of g(x) are 1/5 of those on the graph of f(x).
Dividing x by a dilation factor will cause horizontal dilation of a graph. Here, that factor is 1/5, so the desired function is ...
g(x) = f(x/(1/5))
g(x) = f(5x)
BRAINLIEST???
A cat food company sells its canned cat food to stores for $0.20 per can. One of the stores sells the can of cat food for $0.55. What percent markup did the store use?
Answers
If im wrong I apologize but I believe it is 0.33 percent more But what I did what subtract the to talk of store A from store B and that is what I got put -0.33 of needed.
Please help me with this question
Answers
Answer:
First blank: 8 mph
Second Blank: 4 mph
Step-by-step explanation:
I'm not really that sure for the second blank but maybe-
(3x^-4)6/9x^-12 can you please solve? I’ll give brainly
Answers
Answer:2
Step-by-step explanation:
Solve 9 > x + 15. Graph the solution.
Answers
Answer:
X + 15 < 9
x < 15 - 9
x < -6
Step-by-step explanation:
Hope you got it
