Answer:
[tex]f(-3)=-3[/tex]
Step-by-step explanation:
[tex]f(x)=2x+3[/tex]
[tex]f(-3)=2(-3)+3[/tex]
[tex]f(-3)=-6+3[/tex]
[tex]f(-3)=-3[/tex]
Hope this helps!
(Please mark Brainliest!)
Find the domain. Write your answer in interval notation.
Answer:
[-4, 2]
Step-by-step explanation:
the domain is between -4 and 2, but it also includes those numbers, so you get:
[-4, 2]
5y - 1 = 4y +5
Linear equations
Step-by-step explanation:
5y - 1 = 4y + 5
5y -4y = 5 + 1
Y (1y) = 6
find the inverse of each of the given function f(x)=4x-2
Answer:
y= x-2 /4
Step-by-step explanation:
x=4y+2
4y=x-2
answer:
y= x-2 / 4
-3(4x+3)+4(6x+1)=43
Answer:
X=4
Step-by-step explanation:
collect like term than move the rate and divide by 12
HELP Pls !!
Find the coordinates of the midpoint of the line segment with endpoints (8,-2) and (-6,-5).
[tex]M=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]
[tex]M=(\frac{8-6}{2},\frac{-2-5}{2})[/tex]
[tex]M=(1,-\frac{7}{2})[/tex]
Hope this helps.
頑張って!
there were 5,2000 hot sold at the ballpark last night. the attendance was 14,5,507 .The hot dogs cost 375 each .The night before there were 4,100 hot dog sold. the attendance that night was were 17,129 .The owner of the ballpark wants o know how many hot dogs were sold at the last two games.
Answer:
I think u messed ur numbers up
Which represents the solution set of the inequality 5x-9321?
O xs"?
23
O x
O x26
O x56
What is the value of x?
3x
69°
23
32
17
26
Click Save and Submit to save and submit. Click Save All Answers to save all
Answer:
23
Step-by-step explanation:
3x = 69°
This is because they are vertically opposite angles.
You would have to divide 69 by 3.
69 ÷ 3 = 23
23 · 3 = 69
To sell an additional kilogram of snig, how much does the price need to decrease?
Hello. This question is incomplete. The full question is:
There is a harvest festival each year on the planet Bozone. During that time, most of the Bozone residents sit down to rejoice and eat roast snig. Past history shows that a reasonable price-demand equation is:
p=300−4x where x is the number of kilograms of snig sold, and p is the price per kilogram of snig in the local currency, the Bozat.
To sell an additional kilogram of snig, how much does the price need to decrease? Price needs to decrease by Bozats.
Answer:
It is necessary to decrease 4 bozats in the price so that an additional 1 kq of snig can be sold.
Step-by-step explanation:
You can achieve this result through a very simple and straightforward calculation.
First it is necessary that you assume the equation (x + 1) for X. This way you will have the mathematical expression:
300-4 (X + 1) = 300-4x-4.
Michael bought 160 hot dogs for an eating competition. He spent $240 in all. How much did each hot dog cost?
Answer:
$1.5
Step-by-step explanation:
[tex]160\:hot\:dogs = \$240\\1 \: hot \:dog = \$x\\\\160x = 240\\\\\frac{160x}{160} = \frac{240}{160} \\\\x = \$1.5[/tex]
Brandon throws a ball across a field. The ball's height, in feet, is modeled by the function ƒ(t) = –1∕2t2 + 2t + 6, where t represents time in seconds. How long does it take the ball to hit the ground? Question 4 options: A) 2 seconds B) 4 seconds C) 8 seconds D) 6 seconds
Answer:
D. 6 seconds.
Step-by-step explanation:
When the ball hits the ground f(t) = 0 , so:
-1/2t^2 + 2t + 6 = 0
Take out the -1/2:
-1/2(t^2 - 4t - 12) = 0
-1/2(t - 6)(t + 2) = 0
t = -2 , 6. We ignore the negative zero.
So the answer is 6 seconds.
Answer:
6 seconds is right!
I got it right in class
Compare this graph to the previous graphs in lesson 1 and 2. Explain how the are different or similar.
Answer:
Hello!
You can compare graphs by looking at their rate of change, and y intercept.
Another way you can compare graphs is that you can see if both graphs' lines intersect. I hope this helps you! :)
Have a nice day! :D
A restaurant has 6 1/2 pies in the refrigerator. If it sells 1 3/4 pies each day , how many days will the pies last?
Answer:
[tex]\boxed{3}[/tex]
Step-by-step explanation:
[tex]6\frac{1}{2} /1\frac{3}{4} =\frac{13}{2} /\frac{7}{4}=\frac{13}{2} *\frac{4}{7}=\frac{52}{14} =\frac{26}{7} =3.714[/tex]
Answer:
6 1/2 pies = 26/4 pies and 7/4 are sold per day
It will last
26/4 divided by 7/4 days =
104 / 28 = 26 / 7 = 3.7142857143 days
Step-by-step explanation:
How do the 6 in 683.5 and 30.67 compare
Answer:
well the 6 in 683.5 is in the hundreds, and the 6 in 30.67 is in the tenths so the one in 30.67 is actually smaller than the 6 in 683.5
Step-by-step explanation:
Please help with these problems
48<4(-7+n)
Um what’s the answer :)
Answer:
n>19
Step-by-step explanation:
Mrs.lyons bought some chocolate and lollipops on the ratio of 7:4. the price of all the chocolate to the price of all lollipops was in the ratio of 5:2. she spent $127.40 in all. if each lollipop costs 15 cents less tan each chocolate, how many lollipops did se buy?
Answer:
5
Step-by-step explanation:
3x+4y=15+6y solve for y (PLZ HURRY)
Answer:
Subtract 4y from both sides of the equation.
can someone help me please.... with number 6,7,8,9
Answer :
6. x=28
7.x =6
8. x =9
9. x =9
Step-by-step explanation:
[tex] \frac{x + 2}{10} = 3[/tex]
[tex]x + 2 = 3 \times 10 \\ x + 2 = 30 \\ x = 30 - 2 \\ x = 28[/tex]
6.
(x+2)/10 = 3
Cross multiply
x+2 = 10 ×3
x+2 =30
Collect like terms and simplify
x =30-2
x = 28
7.
[tex]8x + 9 - 5x = 27 \\ 8x - 5x = 27 - 9 \\ 3x = 18[/tex]
[tex] \frac{3x}{3} = \frac{18}{3} \\x = 6[/tex]
8x +9 -5x= 27
Collect like terms and simplify
8x-5x =27-9
3x =18
Divide both sides of the equation by 3
3x/3 = 18/3
x = 6
8.
10x+8=8x+26
Collect like terms
10x-8x=26-8
2x = 18
Divide both sides of the equation by 2
2x/2 = 18/2
x = 9
9.
2(x-5)+4x=x+35
Use 2 to open the bracket
2 × x =2x
2×(-5) =-10
2x-10+4x =x+35
Collect like terms and simplify
2x+4x-x = 35+10
5x = 45
Divide both sides of the equation by 5
5x/5 = 45/5
x =9
Solve the system by using elementary row operations on the equations. Follow the systematic elimination procedure
x1+4x2 =11
2x1+7x2=18
Find the solution to the system of equations.
Answer:
The solution of the Given matrix
( x₁ , x ₂ ) = ( - 5 , 4 )
Step-by-step explanation:
Step(i):-
Given equations are x₁+4 x₂ = 11 ...(i)
2 x₁ + 7 x₂= 18 ...(ii)
The matrix form
A X = B
[tex]\left[\begin{array}{ccc}1&4\\2&7\\\end{array}\right] \left[\begin{array}{ccc}x\\y\\\end{array}\right] = \left[\begin{array}{ccc}11\\8\\\end{array}\right][/tex]
Step(ii):-
[tex]\left[\begin{array}{ccc}1&4\\2&7\\\end{array}\right] \left[\begin{array}{ccc}x\\y\\\end{array}\right] = \left[\begin{array}{ccc}11\\8\\\end{array}\right][/tex]
The Augmented Matrix form is
[tex][AB] = \left[\begin{array}{ccc}1&4&11\\2&7&18\\\end{array}\right][/tex]
Apply Row operations, R₂ → R₂-2 R₁
[tex][AB] = \left[\begin{array}{ccc}1&4&11\\0&-1&-4\\\end{array}\right][/tex]
The matrix form
[tex]\left[\begin{array}{ccc}1&4\\0&-1\\\end{array}\right] \left[\begin{array}{ccc}x\\y\\\end{array}\right] = \left[\begin{array}{ccc}11\\-4\\\end{array}\right][/tex]
The equations are
x₁ + 4 x₂ = 11 ...(a)
- x ₂ = - 4
x ₂ = 4
Substitute x ₂ = 4 in equation (a)
x₁ + 4 x₂ = 11
x₁ = 11 - 16
x₁ = -5
Final answer:-
The solution of the Given matrix
( x₁ , x ₂ ) = ( - 5 , 4 )
Match the vocabulary to the correct operation practice writing algebratic expressions
AND MORE QUESTIONS PLEASE ANSWER THEM AND IF YOU DO YOU WILL BE MARKED BRAINLIEST AND I SWEAR ILL LOVE YOU PLS :(
Hey there! The answer is C. I can help you with more if you need it.
Given f(x) = 3x-2 and g(x)=-1/2x3, find the following problems
1. F(5).
2. G(8)
3.f(-8)
4.G(-10)
Answer:
f(5)=13 g(8)=12 f(-8)= -26 g(-10)=-15
Step-by-step explanation:
1) 5*3=15
15-2=13
2) 8*.5*3=12
3) -8*3=-24
-24-2= -26
4) -10*.5*3= -15
Gorgi found a shoe pair for $35. She had a 30% discount. What is the price now?
Answer:
$24.50
Step-by-step explanation:
$35 - 30% = $24.50.
Thus, that is the answer.
Hope this helps!
Answer- $24.50
$35 - 30% is $24.50.
Gorgi saved $10.50 as well.
Hope this helps!
Write an equation for a line parallel to g(x) = 3x − 1 and passing through the point (4, 9)
Answer: y=3x-3
Step-by-step explanation:
To find a line that is parallel to the function, we know that the slope must stay the same. Parallel lines NEVER cross. This means the slope MUST be the same. All we have to change is the y-intercept. We can use the given point to find the correct y-intercept.
y=3x+b [plug in (4,9)]
9=3(4)+b [multiply]
9=12+b [subtract both sides by 12]
b=-3
Now, we know that the y-intercept is -3, we can put together our equation. y=3x-3
please help with all the questions
Answer:
a. ∠ABE b. ∠DC c. obtuse angle d.∠ FBC: OBTUSE ANGLE
∠EBF: REFELX ANGLE
∠ABC: ACUTE ANGLE
e. ∠ DBC f. 108+117 ÷36= 6.25
Step-by-step explanation:
What is 42% of $122?
(NOT in college)
Solve the system of linear equations for x and y.(cos θ)x + (sin θ)y=1(−sin θ)x + (cos θ)y = 0x=y=
Answer:
[tex]\bold{x =cos\theta}\\\bold{y=sin\theta}[/tex]
Step-by-step explanation:
The given system of linear equations is:
[tex](cos\theta)x+(sin\theta)y=1\\(-sin\theta)x+(cos\theta)y=0[/tex]
We have to solve the equations for the values of [tex]x, y[/tex].
Let us use elimination method in which we eliminate one of the variables from the two variables.
For this, let us multiply the first equation by [tex]sin\theta[/tex] and second equation by [tex]cos\theta[/tex]
Now, the equations become:
[tex](cos\theta.sin\theta)x+(sin\theta.sin\theta)y=sin\theta\\\Rightarrow (cos\theta.sin\theta)x+(sin^2\theta)y=sin\theta ....... (1)\\\\(-sin\theta.cos\theta)x+(cos\theta.cos\theta)y=0\\\Rightarrow (-sin\theta.cos\theta)x+(cos^2\theta)y=0 ..... (2)[/tex]
Now, let us add (1) and (2):
[tex](sin^2\theta)y+(cos^2\theta)y=sin\theta\\\Rightarrow (sin^2\theta+cos^2\theta)y=sin\theta\\\Rightarrow (1)y=sin\theta\\\Rightarrow y = sin\theta[/tex]
Using the equation:
[tex](-sin\theta)x+(cos\theta)y=0[/tex]
Putting value of [tex]y[/tex]:
[tex]\Rightarrow (-sin\theta)x+(cos\theta)sin\theta=0\\\Rightarrow (sin\theta)x=(cos\theta)sin\theta\\\Rightarrow x = cos\theta[/tex]
So, the answer to the system of linear equations is:
[tex]\bold{x =cos\theta}\\\bold{y=sin\theta}[/tex]
What is the value of x if x * x + 2x -35 = 0?
Lieutenant Commander Data is planning to make his monthly (every 30 days) trek to Gamma Hydra City to pick up a supply of isolinear chips. The trip will take Data about four days. Before he leaves, he calls in the order to the GHC Supply Store. He uses chips at an average rate of seven per day (seven days per week) with a standard deviation of demand of three per day. He needs a 95 percent service probability.
a. If he currently has 40 chips in inventory, how many should he order? (Use Excel's NORMSINV() function to find the correct critical value for the given a-level.)
Number of chips _____
b. What is the most he will ever have to order? (Use Excel's NORMSINV() function to find the correct critical value for the given a-level. )
Maximum order quantity _____
a. The number of chips Data should order to achieve a 95 percent service probability before his trip is 40.
b. The maximum order quantity of chips Data will ever have to order to ensure a 95 percent service probability.
Given:
Lieutenant Commander Data needs a 95 percent service probability for his monthly trip to Gamma Hydra City to pick up iso-linear chips.
The trip takes Data about four days.
Data uses iso-linear chips at an average rate of seven per day (seven days per week).
The standard deviation of demand for iso-linear chips is three per day.
Data currently has 40 chips in inventory.
To find:
a. The number of chips Data should order to achieve a 95 percent service probability before his trip.
b. The maximum order quantity of chips Data will ever have to order to ensure .
Therefore, to determine the order quantity, Data needs to calculate the safety stock using the formula:
Safety Stock = Z x Standard Deviation of Demand
where:
Z is the critical value corresponding to the 95 percent service probability, which can be found using Excel's NORMSINV() function. The order quantity will be the safety stock plus the average daily demand during the trip (four days).For the maximum order quantity, Data should consider the worst-case scenario.
The maximum order quantity will be the safety stock plus the maximum daily demand during the trip (four days) and the current inventory (40 chips).
By calculating these values, Lieutenant Commander Data can ensure a sufficient inventory level and meet the 95 percent service probability during his trip to Gamma Hydra City.
Learn more about service probability here:
https://brainly.com/question/33811154
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#4: Which property could be used to solve the equation below? *
15 = x + 13
Answer:
15-13=2
13+2=15
x=2
now double check the answer and
2+13=15
x = 2 is your answer