Answer:
f(-6)=23
Step-by-step explanation:
f(-6)=-3(-6)+5
f(-6)=18+5
f(-6)=23
Hope this helps you!!!!
What is the length of side PQ in this figure?
A. 4
B. 14
C. square root of 52
D. square root of 61
Answer:
Option c. Square root of 52
1: the tip is 20% on a $42 meal
2: The price paid for an $120 bookshelf after an 20% discount applied
3: the 6% state income tax on a $40,000 salary
4: The total cost of an $82 meal with as 20% tip
Step-by-step explanation:
1. The tip is $8.40
2. The price after the discount is 96.
3. The tax taken away is $2400
4. $98.4
What is the slope of the line? Hurry please
Answer:
I believe it's 1
Answer:
1
Step-by-step explanation:
After a tax of 7% is applied, the total cost of an item is $34.24. Which of the following
equations could you use to find the original price, p?
34.24 1.07=p
O 34.24*0.93-p
01.07p=34.24
O 0.93p-34.24
Please help fast!!!
Answer:
Step-by-step explanation:
do it your self
just know its not b.....
I know how to solve this so I just wanna give points away.
Emil was dividing his candy among 15 friends and himself. If each person received 4 pieces, how many pieces of candy did Emil have to start with? Define a variable and write an equation. Solve the equation and check your solution.
chile anyways so i just wanted the points
Find the length of GH.
A. About 4.5 units
B. 20 units
C. 6 units
D. About 2 4 units
Answer:
C. 6 units
Step-by-step explanation: Graph the line using the slope and y-intercept, or two points.
Slope:
0
Answer:
Its A: 4.5 units
Step-by-step explanation:
y'all I really need help
Answer:
10
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
First, solve the parentheses:
[tex]\frac{4^{2} }{2} = 16[/tex]
Then just solve it:
[tex]8-1+3 = 10[/tex]
Hope this helps!
Solve the system and write your answer as a coordinate point. I
(1 Point)
-6x – 3y = 24
4x – 2y = 8
Answer:
The solution of the system is:
(x, y) = (-1, -6)
Step-by-step explanation:
Given the system of equations
-6x – 3y = 24
4x – 2y = 8
solving the system of equations
[tex]\begin{bmatrix}-6x-3y=24\\ 4x-2y=8\end{bmatrix}[/tex]
[tex]\mathrm{Multiply\:}-6x-3y=24\mathrm{\:by\:}2\:\mathrm{:}\:\quad \:-12x-6y=48[/tex]
[tex]\mathrm{Multiply\:}4x-2y=8\mathrm{\:by\:}3\:\mathrm{:}\:\quad \:12x-6y=24[/tex]
so
[tex]\begin{bmatrix}-12x-6y=48\\ 12x-6y=24\end{bmatrix}[/tex]
adding the equations
[tex]12x-6y=24[/tex]
[tex]+[/tex]
[tex]\underline{-12x-6y=48}[/tex]
[tex]-12y=72[/tex]
so the system of equations becomes
[tex]\begin{bmatrix}-12x-6y=48\\ -12y=72\end{bmatrix}[/tex]
solve -5y=72 for y
[tex]-12y=72[/tex]
Divide both sides by -12
[tex]\frac{-12y}{-12}=\frac{72}{-12}[/tex]
Simplify
[tex]y=-6[/tex]
[tex]\mathrm{For\:}-12x-6y=48\mathrm{\:plug\:in\:}y=-6[/tex]
solving
[tex]-12x-6\left(-6\right)=48[/tex]
[tex]-12x+6\cdot \:6=48[/tex]
[tex]-12x+36=48[/tex]
subtract 36 from both sides
[tex]-12x+36-36=48-36[/tex]
Simplify
[tex]-12x=12[/tex]
Divide both sides by -12
[tex]\frac{-12x}{-12}=\frac{12}{-12}[/tex]
[tex]x=-1[/tex]
Therefore, the solution of the system is:
(x, y) = (-1, -6)
Find the value of x.
Answer:
x=40 degrees
Step-by-step explanation:
a triangle is a total of 180 degrees. 180-120-20=40
Answer:
the value of X would be 40
If you rotate triangle ABC 90 degrees counter- clockwise, where would the vertices of A'B'C' be located?
Answer:
a at c place 45 degree b at a place 45 dgree cat b place 90 degree
PLZ HELP I NEED MY GRADES UPPPPP!!
Answer:
it is at -2 degrees
Step-by-step explanation:
sorry for being late but if anyone in the future sees this hears the answer!
have a good one!
Answer:
The slope is –2
Step-by-step explanation:
Slope is Rise/Run
The change in y-values is the Rise. The line goes down from left to right here, so it is negative.
The Run is the change in x-values.
Here, for every 2 units of change in x, the y changes by 4, negative.
–4/2 = –2
Chris has 90 pairs of tennis shoes . He has his shoes separated
Someone help please!!
Answer:
Multiplicative inverse of a/b is b/a
therefore 5/1=1/5
Isabel had 21 coins in her collection. Frank had 3 times as many coins as Isabel had. Which equation can be used to determine the number of coins Frank had? *
21 ÷ _?_ = 3
3 x 21 = _?_
21 + 3 = _?_
3 + _?_ = 21
(4x + 3)(x + 1) = 1
What is the solution set?
Answer:
Step-by-step explanation:
4x^2 + 7x + 3 = 1
4x^2 + 7x + 4 = 0
-7 ± [tex]\sqrt{49 -64}[/tex]
------------------
8
(Sorry, first time making complex equations)
-7 ± [tex]\sqrt{-15}[/tex]
-------------
8
Someone help me ASAP thank you
Answer:
1/2
Step-by-step explanation:
sin
(
20
)
cos
(
10
)
+
cos
(
20
)
sin
(
10
)
Decimal Form:
0.5
Answer:
c or b please dont get mad if i get it wrong
Step-by-step explanation:
your welcome
Joseph has a collection of stickers. When the stickers are aranged in piles of 3, there are 2 stickers left over. When the stickers are aranged in piles of 4, there are 2 stickers left over. When the stickers are arranged in piles of 12, how many stickers are left over?
Answer:
2 stickers will be left over
Step-by-step explanation:
To answer the question, all you need to do is figure out at what value of stickers would the remaining stickers be equal to 2 if the piles are made up of either 3 to a set or 4 to a set. To do this, we need to figure out the size of the whole set of stickers.
Lets assume that the total number of stickers is 14. Lets test the 2 given conditions. If we divide it in piles of 3 then we will have a pile of 12 stickers (4 piles of 3 stickers each) with 2 stickers remaining.
Lets test the second condition. If we divide it in piles of 4, we will again have 12 stickers (3 piles of 4 stickers each) with 2 stickers remaining.
Now that both conditions have been satisfied, all we have to do is see how many stickers are left if we make a pile of 12 stickers. In this case, we will have just one pile of 12 stickers and, again, we will be left with 2 stickers.
Therefore, the answer is 2 stickers
Miguel bought 3CDs that were each the same price. Including sales tax, he paid a total of 34.00 . Of that total,3.60 was tax. What was the price of each CD before tax?
Answer:
$10.13
Step-by-step explanation:
Take the total and subtract the tax:
34-3.6 = 30.40
Take that answer and divide by 3
what graphs does this system for equations go on ?
y=1/2x
y=1/2x-6
Answer:
y=12x;y=12x−6
Step: Solvey=12xfor y:
y=12x
Step: Substitute12xforyiny=12x−6:
y=12x−6
12x=12x−6
12x+−12x=12x−6+−12x(Add (-1)/2x to both sides)
0=−6
What is the quotient of 40,122 divided 27
Answer:
1486
Step-by-step explanation:
What is the quotient, if 40,122 is divided by 27?
40,122
-------------- = 1486
27
Answer: The answer is 1,486
Step-by-step explanation:
40,122 divided by 27=1,486
The figures shown are similar. Find the lengths of x,y and z
Answer:
explanation po sana ang kailangan
2(x +10)-17 = 5 + 2x - 2
22
White-sided jackrabbits: 9.7x2 – 0.8x + 2.3 Black-tailed jackrabbits: -1.1x2 + 7.7x + 5.4
What polynomial models the total number of white-sided and black-tailed jackrabbits?
A. -8.6x2 + 6.9x – 7.7
B. 8.6x2 - 6.9x + 7.7
C. 8.6x2 + 6.9x + 7.7
D. 8.6x2 – 6.9x – 7.7
the height of the Empire State Building in New York City is 1250 ft and 364 fewer feet than the height of the world financial center building in shanghai, china. what is the height (h) of the World Financial Center building?
Answer:
1614 should be the correct answer
Hope this helps!
2. What is the value of x? Show ALL of your work. Round your answer to the nearest tenth.
А
x cm
12 cm
B
6 cm
9514 1404 393
Answer:
10.4
Step-by-step explanation:
The Pythagorean theorem applies to the sides of this right triangle.
x² + 6² = 12²
x² +36 = 144 . . . . find the squares
x² = 108 . . . . . . . . subtract 36
x = √108 . . . . . . . take the square root
x ≈ 10.4
Y’all give me dis answer to
Answer:
The solution is: (1,-3)
Step-by-step explanation:
Given equations are:
x-y=4 Eqn 1
4x+y = 1 Eqn 2
Substitution involves finding value of a variable from one equation and putting in other equation
From equation 1
x = y + 4
Putting in equation 2
[tex]4(y+4) + y = 1\\4y+16+y = 1\\5y = 1-16\\5y = -15\\\frac{5y}{5} = \frac{-15}{5}\\y = -3[/tex]
Putting y = -3 in equation 1
[tex]x- (-3) = 4\\x + 3 = 4\\x = 4-3\\x = 1[/tex]
Hence,
The solution is: (1,-3)
i need help with these questions.
Answer:
Q1) C=2pi r
C= 2 x 7.5 x 3.142
C= 47.13
Q2) A= pi r^2
A= 3.142 x 7.5^2
=3.142 x 56.25
A=176.74
Q3) A= pi r^2
A= pi 6^2
A=36pi mm^2
Q4) A= pi r^2
A= 4^2 x 3.142
A= 50.3
Q5) A=pi r^2
Radius= C/2---------------------> R=14/2--------------> R=7
A=pi x 7^2
A=49 pi cm^2
Paula says that 2/3 is equivalent to 4/9 because 4 is a multiple of 2 and 9 is a multiple of 3. explain her error.
Answer:
Paula is wrong because, in order to be equivalent, the nominator and denominator of a fraction must have to be multiplied by the same number.
Step-by-step explanation:
Paula is wrong because, in order to be equivalent, the nominator and denominator of a fraction must have to be multiplied by the same number.
4/9 is basically obtained when we multiply the denominator of 2/3 by 2 and denominator by 3, which is wrong.
Thus, the correction is as follows:
Given the fraction
[tex]\frac{2}{3}[/tex]
Multiply the nominator and denominator of the fraction by 2
[tex]\frac{2\times 2}{3\times 2}=\frac{4}{6}[/tex]
Thus, the 4/6 is the correct equivalent expression of 2/3.
Find x when y = 32, given that x varies inversely as y, and x = 132 when y = 4.
Answer:
When y=32, x=16.5
Step-by-step explanation:
Find x when y = 32, given that x varies inversely as y, and x = 132 when y = 4.
We are given:
x varies inversely with y
We can write it as: [tex]x\:\alpha \:\frac{1}{y}[/tex]
[tex]x=\frac{k}{y}[/tex]
We have x = 132, when y=4
We can find value of k by using these values
[tex]x=\frac{k}{y}\\132=\frac{k}{4}\\k=132*4\\k=528[/tex]
We need to find x when y=32
[tex]x=\frac{k}{y}\\x=\frac{528}{32}\\x=16.5[/tex]
So, when y=32, x=16.5
3. f(3) if f(x) = 2x + 4 I also need the explanation please!
Answer:
f(3) = 10
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Function NotationStep-by-step explanation:
Step 1: Define
f(x) = 2x + 4
f(3) is x = 3
Step 2: Evaluate
Substitute in x: f(3) = 2(3) + 4Multiply: f(3) = 6 + 4Add: f(3) = 10Answer:
10
Step-by-step explanation:
2x+4
2(3)+4
6+4
10