Answer:
Subtrac 3
Step-by-step explanation:
Given
Add 3
Required
The inverse operation
In algebra, the inverse of add is subtract;
Hence, the inverse of add 3 is subtract 3
Two students in the same Spanish class, Perry and Dakota, plan to get together after school
to make vocabulary flashcards. Perry started on the project yesterday and has already made
5 flashcards. Dakota hasn't started yet. Since Perry makes 4 flashcards per minute and
Dakota makes 5 flashcards per minute, Dakota will soon have the same number of
flashcards. How many flashcards will each student have at that point?
Write a system of equations, graph them, and type the solution.
Answer:
Dakota=20 perry=25 together= 45
Step-by-step explanation:
First step, remember to keep 5
second step, if they are find keep multiplying until they both meet the same number which is 20, but they both have 20. But Perry will have 25 since he started a day before
Write the equation of a line perpendicular to the line:
y=43x−1
that goes through the point (-6, -6).
Write your answer in slope- intercept form, using reduced fractions for the slope and intercept.
ANSWER ASAP DONT SEND A FILE WHAT IS THE TRANSFORMATION????
Answer:
Hi, I believe this is reflection then rotation. I haven't studied this in some time but from what I remember I think that would be the right answer. I hope I helped, have a nice day :)
Answer:
Reflection, then translation.
Step-by-step explanation:
1 flips to the other side to create 2 and 2 slides, or translates, to create 3.
50 POINTS
Solve by linear combination
2x-4y=4
x-4y=10
Write your answer as an ordered pair with no spaces (x,y)
Answer:
(1/2,1/4) because m= 1/5 and m= 1/2 and te equation is y=1/4x - 5/2 and y= 1/2x - 1
Substracting both
[tex]\\ \sf\Rrightarrow x=4-10=-6[/tex]
Putting in eq(2)
[tex]\\ \sf\Rrightarrow -6-4y=10[/tex]
[tex]\\ \sf\Rrightarrow -4y=16[/tex]
[tex]\\ \sf\Rrightarrow y=-4[/tex]
Hence our solution is
(x,y)=(-6,-4)find the value of X if: x-30%ofx=rs70
Answer:
Step-by-step explanation:
x-30% 0f x=70
x-30/100*x=70
100x-30x/100=70
70x=70*100
x=7000/70
x=100
Answer:
[tex]X - 30 \% \ of \ X = 70\\\\Using \ BODMAS \ first \ priority \ for \ 'of'\\\\X - (30 \% \ of \ X) = 70\\\\ X - (\frac{30}{100}\times X) = 70\\\\X - \frac{30X}{100} = 70\\\\\frac{100X -30X}{100} = 70\\\\70X = 70 \times 100\\\\X = \frac{7000}{70} = 100[/tex]
Simplify
-6 + 2a + 1 + 2a
Answer:
- 5 + 4a
Step-by-step explanation:
- 6 + 2a + 1 + 2a
- 6 + 1 + 4a
- 5 + 4a
Does anyone know how to solve this ?
Answer:
300 I think
Step-by-step explanation:
V=1/3 Bh
B=10*9=90
90*10=900 1/3 of 900= 300
los trabajadores de una mina se encuentran a 20 metros bajo tierra .Si excavan 3 metros desde alli suben otros 8 metros para coger una caretilla a que altura estaba la carretilla
Step-by-step explanation:
la carretilla estaba a unos 15 metros de altura
si tengo 6 burros regalo 3 y me dan 3 cuanto tengo
Answer:
6
Step-by-step explanation:
(6-3)+3=6
if f(x)=×^2-81andg(x)
9514 1404 393
Answer:
the correct choice is marked
Step-by-step explanation:
[tex]f(x)\cdot g(x)=(x^2-81)\dfrac{x+9}{x-9}=\dfrac{(x-9)(x+9)(x+9)}{(x-9)}\\\\=\boxed{(x+9)^2}[/tex]
The following data values represent a population. What is the variance of the
values?
6, 10, 14,2
A. 16
B. 8
C. 10
D.20
Answer:
D is the correct answer.......
The Skate Center charges a $50 flat fee kick-back party rental and $5.50 for each person who attends. Your parents gave you no more than $300 to spend on the party. How many people can you invite to the party without going over budget? I NEED THE ANSWER QUICK!
Answer: 45 people
Step-by-step explanation:
Data: $50 to rent the Skate Center
$5.50 for each person who attends
Limit of spending: $300
How many people can attend=x
Step one, Make the equation
$5.50x+$50=$300
Reason: Since we know that amount of people(x) multiplied by $5.50 added to $50 will get us $300, we can make an equation from that. The equation will make the problem simpler to solve.
Step two, Start isolating x by subtracting $50 on both sides
$5.50x+$50-50=$300-50=$5.50x=$250
Reason: Since we have to find x, we have to isolate it. The first step in doing that is subtracting $50 by 50 to get rid of it. However, since what you do to one side, you do to the other, you have to subtract $300 by 50 to get $250.
Step three, Divide by 5.50 on both sides
$5.50x/5.50=$250/5.50=x=45.454545454-
Reason: Since we have to isolate x and 5..50 is being multiplied by x, you have to divide it by 5.50 to get rid of 5.50. What you do to one side, you do to the other so you divide 250/5.50 to get 45.4545454545-.
Since this is a irl problem, you have to round it to 45 people
Answer: 45 people
I hope this helps!
A certain manufactured product is supposed to contain 23.2% potassium by weight. A sample of 10 specimens of this product had an average percentage of 23.6 with a standard deviation of 0.3. If the mean percentage is found to differ from 23.2, the manufacturing process will be recalibrated. State the appropriate null and alternate hypotheses.
Answer:
The null hypothesis is [tex]H_0: \mu = 23.2[/tex]
The alternate hypothesis is [tex]H_a: \mu \neq 23.2[/tex]
Step-by-step explanation:
Null hypothesis:
The product is supposed to contain 23.2% potassium by weight, which means that at the null hypothesis, we test that this is the correct weight. So
[tex]H_0: \mu = 23.2[/tex]
Alternate hypothesis:
If the mean percentage is found to differ from 23.2, the manufacturing process will be recalibrated, which means that we test if the mean differs from 23.2, that is:
[tex]H_a: \mu \neq 23.2[/tex]
Jason completed 1 crosswords on Tuesday and 1 crosswords on Saturday
in total what fraction of these crosswords did Jason finish?
The question is incomplete as the total number I crosswords required for completion isn't given :
Hypothetically, if the total Number of cross words is taken as x ;
Answer:
2 /x
Step-by-step explanation:
The number of crosswords John did = 1 + 1 = 2
Total number of cross words = x
Fraction of crosswords John did :
2 / total number of crosswords
2 / x
Kindly substitute the actual number of crosswords for X to obtain exact answer.
The graph of a proportional relationship and an equation are shown.
What is the greater unit rate?
Answer:
Graph has the greater unit rate.
Step-by-step explanation:
From the graph attached,
Since, graph shows the proportional relationship,
y ∝ x
y = kx
Here, k = unit rate
If the line given in the graph passes through (0.2, 1.5)
Slope of this line will be,
k = [tex]\frac{1.5}{0.2}[/tex]
k = 7.5
Therefore, unit rate = 7.5
Equation of the line given in the question is,
[tex]y=\frac{11}{2}x+3[/tex]
Comparing this equation with the y-intercept form of the equation,
[tex]y=mx+b[/tex]
Slope of this line 'm' = [tex]\frac{11}{2}[/tex]
= 5.5
Unit rate of the given equation = 5.5
Therefore, graph has the greater unit rate.
Select the correct answer.
Which equation is equivalent to the given equation?
X^2 - 6X = 8
A. (X - 6)^2 = 44
B. (X - 3)^2 = 14
C. (X - 6)^2 = 20
D. (X - 3)^2 = 17
Answer:
I think it's D
Step-by-step explanation:
The equivalent equation is (x - 3)² = 17
The equation given is :
x² - 6x = 8
The equation is a quadratic equation
A quadratic equation is an equation that has one variable that is raised to the power of 2.
it is usually in the form : ax² + bx + c = 0
a, b,c are known numbers
x is unknown
To determine which option is correct, we are to solve for each of the options to see which is correct
1. (x - 6)² = 44
(x -6)(x -6) = 44
x² - 6x -6x + 36 = 44
x² -12x + 36 = 44
x² - 12 = 8
The first option is not correct
2. (x - 3)² = 14
(x -3)(x -3) = 14
x² - 3x -3x + 9 = 14
x² -6x + 9 = 14
x² - 6x = 5
the second option is not correct
3. (x-6)² = 20
(x -6)(x-6) = 20
x² -6x -6x + 36 = 20
x² -12x = -14
the third option is not correct
4. (x - 3)² = 17
(x-3)(x - 3) = 17
x² - 3x - 3x + 9 = 17
x² - 6x = 8
The fourth option is correct
To learn more about quadratic equations, please check: https://brainly.com/question/2925460?referrer=searchResults
2) write a linear function that passes through point ( 3, 6) and is perpendicular to Y=2X-1.
Answer:
y=-1/2*+5
Step-by-step explanation:
Determine the lengths of both missing sides
45°
у
5
[tex]x = \frac{10}{\sqrt{2}}\\\\y = 5[/tex]
What would be x please help me
Answer:
[tex]18.83[/tex]
Step-by-step explanation:
For right triangles only, the tangent of an angle is equal to its opposite side divided by its adjacent side.
Therefore, we have the equation:
[tex]\tan 33^{\circ}=\frac{x}{29},\\x=29\tan 33^{\circ}\approx \boxed{18.83}[/tex]
-4+3b^2=143
Simplest radical form
Answer:
[tex] - 4 + 3b {}^{2 } = 143 \\ 3b {}^{2} = 143 + 4 \\ 3b {}^{2} = 147 \\ b {}^{2} = \frac{147}{3} \\ b {}^{2} = 49 \\ b = 7[/tex]
PLS HELP ASAP!!!!!!
THANK UUU
Answer:
a: is 36
Step-by-step explanation:
x + 2y = 3
3x - 2y = 5
What is the solution to the system of equations?
A)
(4, 3.5)
B)
(2,3)
(2, -1)
D)
(3, 2)
Answer:
x=2, y=1/2. (2, 1/2).
Step-by-step explanation:
x+2y=3
3x-2y=5
-------------
4x=8
x=8/4
x=2
2+2y=3
2y=3-2
2y=1
y=1/2
10(x+10)127 solve for x
Answer:
10(x+10)(127)
=1270x+12700
The given expression gives [x] as 2.7.
What is a expression? What is a mathematical equation?A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.A mathematical equation is used to equate two expressions.Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.We have the following equation -
10(x + 10) = 127
Given is -
10(x + 10) = 127
x + 10 = 12.7
x = 12.7 - 10
x = 2.7
Therefore, the given expression gives [x] as 2.7.
To solve more questions on Equations, Equation Modelling and Expressions visit the link below -
brainly.com/question/14441381
#SPJ2
Find the derivative
Answer:
[tex]\displaystyle f'(x) = \frac{-3}{2\sqrt{2 - 3x}}[/tex]
General Formulas and Concepts:
Algebra I
Terms/Coefficients
Expanding/FactoringFunctions
Function NotationCalculus
Limits
Limit Rule [Variable Direct Substitution]: [tex]\displaystyle \lim_{x \to c} x = c[/tex]
Differentiation
DerivativesDerivative NotationDefinition of a Derivative: [tex]\displaystyle f'(x) = \lim_{h \to 0} \frac{f(x + h) - f(x)}{h}[/tex]Step-by-step explanation:
Step 1: Define
Identify
[tex]\displaystyle f(x) = \sqrt{2 - 3x}[/tex]
Step 2: Differentiate
Substitute in function [Definition of a Derivative]: [tex]\displaystyle f'(x) = \lim_{h \to 0} \frac{\sqrt{2 - 3(x + h)} - \sqrt{2 - 3x}}{h}[/tex]Expand: [tex]\displaystyle f'(x) = \lim_{h \to 0} \frac{\sqrt{2 - 3x - 3h} - \sqrt{2 - 3x}}{h}[/tex]Rationalize: [tex]\displaystyle f'(x) = \lim_{h \to 0} \frac{\sqrt{2 - 3x - 3h} - \sqrt{2 - 3x}}{h} \cdot \frac{\sqrt{2 - 3x - 3h} + \sqrt{2 - 3x}}{\sqrt{2 - 3x - 3h} + \sqrt{2 - 3x}}[/tex]Simplify: [tex]\displaystyle f'(x) = \lim_{h \to 0} \frac{2 - 3x - 3h - (2 - 3x)}{h(\sqrt{2 - 3x - 3h} + \sqrt{2 - 3x})}[/tex]Expand: [tex]\displaystyle f'(x) = \lim_{h \to 0} \frac{2 - 3x - 3h - 2 + 3x}{h(\sqrt{2 - 3x - 3h} + \sqrt{2 - 3x})}[/tex]Combine like terms: [tex]\displaystyle f'(x) = \lim_{h \to 0} \frac{-3h}{h(\sqrt{2 - 3x - 3h} + \sqrt{2 - 3x})}[/tex]Simplify: [tex]\displaystyle f'(x) = \lim_{h \to 0} \frac{-3}{\sqrt{2 - 3x - 3h} + \sqrt{2 - 3x}}[/tex]Evaluate limit [Limit Rule - Variable Direct Substitution]: [tex]\displaystyle f'(x) = \frac{-3}{\sqrt{2 - 3(0) - 3h} + \sqrt{2 - 3x}}[/tex]Simplify: [tex]\displaystyle f'(x) = \frac{-3}{2\sqrt{2 - 3x}}[/tex]Topic: AP Calculus AB/BC (Calculus I/I + II)
Unit: Differentiation
-5(6n+6)=30 I need help
Answer:
N= -2
Step-by-step explanation:
Given The recourse recursive formula, find the first four terms:
Answer:
c
Step-by-step explanation:
we are given that
[tex] \displaystyle a_{n} = - 3 \: \cdot a_{n - 1} \\ a_{1} = 45[/tex]
we are already given our first term i.e 45
for second term
[tex] \displaystyle a_{2} = - 3 \: \cdot a_{2- 1} [/tex]
simplify substraction:
[tex] \displaystyle a_{2} = - 3 \: \cdot a_{1} [/tex]
since we have [tex]a_1=45[/tex]
substitute:
[tex] \displaystyle a_{2} = - 3 \: \cdot 45[/tex]
simplify multiplication:
[tex] \displaystyle a_{2} = - 135[/tex]
for third term
[tex] \displaystyle a_{3} = - 3 \: \cdot a_{3- 1} [/tex]
simplify Substraction:
[tex] \displaystyle a_{3} = - 3 \: \cdot a_{2} [/tex]
as [tex]a_2=-135[/tex]
substitute:
[tex] \displaystyle a_{3} = - 3 \: \cdot - 135[/tex]
simplify multiplication:
[tex] \displaystyle a_{3} = 405[/tex]
for forth term
[tex] \displaystyle a_{2} = - 3 \: \cdot a_{4- 1} [/tex]
simplify Substraction:
[tex] \displaystyle a_{2} = - 3 \: \cdot a_{3} [/tex]
substitute:
[tex] \displaystyle a_{2} = - 3 \: \cdot 405[/tex]
simplify multiplication:
[tex] \displaystyle a_{2} = - 1215[/tex]
hence,
the first four terms are 45,-135,405,-1215
Step-by-step explanation:
hence,
the first four terms are 45,-135,405,-1215
48
A customer buys two packets of meat.
One packet weighs 2.20 kg and the other packet
weighs 1.90 kg.
What is the total weight?
a3.10 kg
b3.11 kg
c4.01 kg
d4.10 kg
Question 1 of 20 :
Select the best answer for the question.
1. What is 7/4 as a mixed number?
A. 13/
B.314
c. 17/4.
D. 11/4
Mark for review Will be highlighted on the review page)
Next Question >>
Answer: 1 & 3/4
We can write this as [tex]1 \frac{3}{4}[/tex]
============================================
Explanation
Consider this: You have 7 donuts and 4 friends you want to split the donuts with. The question is, how many donuts does each of your friends get?
The number 7 isn't a multiple of 4, meaning 7/4 won't result in a whole number. If you had one more donut, then 8/4 = 2 is a whole number. So that must mean everyone only gets one whole donut plus some leftover amount.
If those 4 friends get 1 whole donut each, then 4*1 = 4 donuts are passed out and 7-4 = 3 are left over. The "1" forms the whole part of the mixed number, while the '3' is the numerator of the fraction. The denominator stays the same at 4.
So we go from the improper fraction 7/4 to the mixed number 1 & 3/4. Each person gets 1 whole donut and then 3/4 of a whole donut
------------
We can write the mixed number 1 & 3/4 as [tex]1 \frac{3}{4}[/tex]. Keep in mind that this expression does not mean 1 times 3/4. Instead, it really is saying 1 + (3/4).
3/4-2/3=what does it equal
Answer:
1/12
Step-by-step explanation:
[tex] \frac{3}{4} - \frac{2}{3} = \frac{9 - 8}{12} = \frac{1}{12} [/tex]
Hailey has a rectangular garden in her back yard. The garden has a width of 3 1/4 feet and a length of 7 1/2 ft. Hailey wants to expand the garden to have an area of 32 1/2 feet squared but she wants to keep the same width. Determine the length of the garden when the area is 32 1/2 ft squared.
Answer:
fiduhguhgfbuifhff
Step-by-step explanation:
lfhmiofioe