Answer:
Step-by-step explanation:
X= Fred
56=x+3x
56=4x
Divide both sides by 4
56/4=14
Fred had 14 points and Phil had 42
Check: 14+42=56
You have two numbers. If you double the first number and add it to the second number, the sum is 10.
Let x represent the first number and let y represent the second number.
1) Write an equation showing the relationship between x, y, and 10.
Answer:
probably 2,5&10 because they are all multiples of 2
Which value of x makes this equation true?
-8(x+5) = -3x - 7+ X-3
A. = 7 1/2
B. X=-5
c. X = 1 1/4
D. X= 12
Answer:
B: x = -5
Step-by-step explanation:
9. What is the 12th term of the sequence 3, 6, 12, 24...? (1 points
O2,048
O 3,072
O 6,144
O 12,288
Answer:
each number plus itself so it will be 06,144
Round to nearest tenth
Answer:
Step-by-step explanation:
this is exactly the same as the 1st one, just they put it in a different orientation. sooo use law of cosines , where
QR = c
a = 12
b = 23
cos(120) = cos (P)
c = sq rt [ a^2+b^2﹣2*a*b*cos(P) ]
QR = sq rt [ 12^2 + 23^2 - 2* 12*23*cos(120) ]
QR = sq rt [ 144 + 529 - 552 * (-0.5 0 ]
QR = sq rt [ 673 + 276 ]
QR = sq rt [ 949 ]
QR = 30.8058
rounded to nearest 10th is
QR = 30.8 :)
PLEASE HELP FOR 5 STAR AND BRAINLIST TYSM
Answer:
Step-by-step explanation:
1) 792÷ 36=22
2) 1/2 ÷ 3 = 1/6
3) D
4) its 10,00 cause 7.741 x 10 = 77,410
5) the answer in decimal is 60.089
Answer quick please
Simplify -6 + 10+ -8
Answer:
-4
Step-by-step explanation:
Well, just add.
Christy is painting pinwheels to sell at a fair. It takes her 1.5 hours to paint each pinwheel. How many pinwheels will she be able to paint in 13.5 hours?
Answer: 9 hours
Step-by-step explanation:
13.5 hours / 1.5 hours = 9 hours
Please help I'll give brainliest! And 100 points this is due tonight!!!
Answer:
You can try searching it up or going to math.way
Step-by-step explanation:
Nicole and all her co-workers wear blue
Answer:
that's a good color to wear
Step-by-step explanation:
:)
find the value of each variable
WILL GIVE BRAINLIEST!!! As part of an offseason training program, the Lane Tech cross county team must sprint up a ramp with a 28% grade. To the nearest degree, what angle does with ramp make with the ground?
Answer:
20%
Step-by-step explanation:
what two consecutive whole numbers that 12 lie between
Can someone help me with these questions and show work please and thank you
Answer:
11. 78
12. 4x² - 3x - 1
Step-by-step explanation:
11. Sum of n whole numbers = ½(n² + n)
Multiply
½*n² + ½*n
= n²/2 + n/2
To find the sum of the first 12 whole number, substitute 12 for n into the equation.
= 12²/2 + 12/2
= 144/2 + 12/2
= 72 + 6
= 78
12. Area of trapezoid = ½(a + b)*h
Where,
a = 5x - 4
b = 3x + 2
h = x + 1
Area = ½(5x - 4 + 3x + 2)*(x + 1)
Area = ½(8x - 2)*(x + 1)
Area = ½[8x(x + 1) -2(x + 1)]
= ½[8x² + 8x - 2x - 2]
Add like terms
= ½(8x² - 6x - 2)
= ½(8x²) - ½(6x) - ½(2)
= 4x² - 3x - 1
Square root of 3
Square root of 36
Square root of 9
Which number is irrational?
Answer:
Square root of 3
Step-by-step explanation:
Answer:
can you help me with this math am not good enough
Which of the following is a solution to 10x^2-x=3?
Answer:
g
Step-by-step explanation:
Suppose we want to choose 2 objects, without replacement, from the 4 objects pencil, eraser, desk, and chair
Answer: First off. Question or statement? Secondly. What?
Step-by-step explanation: Third. What?
1/2 + 3/4 + 3/8 change your improper fraction into a mixed number.
Answer:
13/8
Step-by-step explanation:
Hi. can I send a screenshot?
anwer yess? go ahead
Answer:
Yes you can
Step-by-step explanation:
You just send it through the paperclip when you write a response or make a question
Solve for x
- 7 = x - 2
Answer:
x = -5
Step-by-step explanation:
move the variable tothe left hand side change the sign
-x-7= -2
Calculate the sum
-x =5
change the sign on both of the equations
x =
I need math help as soon as possible please
Answer:
jrkfkgkgf
Step-by-step explanation:
gfkfkfkfkknnfjjgjgjgkgjgjgjgjggjg
A function is a special type of relation where
A. one x can map to multiple y's
B. one x can map to only one y
Answer: the answer would be B :)
It took Kai 9 hours to mow 6 lawns. If Kai worked at the same rate, how many lawns could he mow in 33 hours?
Answer:
so im not sure it can either be 33, 1.5 or 49.5
Step-by-step explanation:
What cultural effect did Napoleon have on Europe?
A.) Napoleon changed culture in Europe by building French art schools throughout Eastern Europe and Spain.
B.) Napoleon spread ideas from the French Revolution throughout Europe, leading to national unity outside of France.
C.) Napoleon impacted European culture by ending monarchies and establishing Communist governments.
D.) Napoleon affected culture by expanding education throughout Europe, leading to a rise in literacy among the wealthy.
Answer:
C.
Step-by-step explanation:
B. is your answer
≈Godbless
What is the solution to a>-167
>-213
a<-213
O as 213
a<21
ف الا
Answer:
option A will be your answer
Step-by-step explanation:
have a nice day/night ^_^
newtons second law states that force equals mass times
Answer:
acceleration
Explanation:
Newtons second law: "Force is equal to the change in momentum per change in time. For a constant mass, force equals mass times acceleration."
find the volume. round your answer to the nearest hundredth
Answer:
268.082 ft3 // rounded would be 268.10
Step-by-step explanation:
Which ordered pair is a solution to the equation y = 5x + 2?
A (-2, -8)
B (22, 4)
C (8, 40)
D (-5, 2)
The problem is attached, thanks.
Answer:
[tex]\displaystyle \frac{dy}{dx} \bigg| \limit_{(1, 4)} = 2[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightEquality Properties
Multiplication Property of EqualityDivision Property of EqualityAddition Property of EqualitySubtraction Property of EqualityAlgebra I
Coordinates (x, y)Exponential Rule [Root Rewrite]: [tex]\displaystyle \sqrt[n]{x} = x^{\frac{1}{n}}[/tex]Exponential Rule [Rewrite]: [tex]\displaystyle b^{-m} = \frac{1}{b^m}[/tex]Calculus
Derivatives
Derivative Notation
Derivative of a constant is 0
Implicit Differentiation
Basic Power Rule:
f(x) = cxⁿf’(x) = c·nxⁿ⁻¹Step-by-step explanation:
Step 1: Define
[tex]\displaystyle \sqrt{x} - \sqrt{y} = -1[/tex]
Point (1, 4)
Step 2: Differentiate
[Function] Rewrite [Exponential Rule - Root Rewrite]: [tex]\displaystyle x^{\frac{1}{2}} - y^{\frac{1}{2}} = -1[/tex][Implicit Differentiation] Basic Power Rule: [tex]\displaystyle \frac{1}{2}x^{\frac{1}{2} - 1} - \frac{1}{2}y^{\frac{1}{2} - 1}\frac{dy}{dx} = 0[/tex][Implicit Differentiation] Simplify Exponents: [tex]\displaystyle \frac{1}{2}x^{\frac{-1}{2}} - \frac{1}{2}y^{\frac{-1}{2}}\frac{dy}{dx} = 0[/tex][Implicit Differentiation] Rewrite [Exponential Rule - Rewrite]: [tex]\displaystyle \frac{1}{2x^{\frac{1}{2}}} - \frac{1}{2y^{\frac{1}{2}}}\frac{dy}{dx} = 0[/tex][Implicit Differentiation] Isolate y terms: [tex]\displaystyle -\frac{1}{2y^{\frac{1}{2}}}\frac{dy}{dx} = -\frac{1}{2x^{\frac{1}{2}}}[/tex][Implicit Differentiation] Isolate [tex]\displaystyle \frac{dy}{dx}[/tex]: [tex]\displaystyle \frac{dy}{dx} = \frac{2y^{\frac{1}{2}}}{2x^{\frac{1}{2}}}[/tex][Implicit Differentiation] Simplify: [tex]\displaystyle \frac{dy}{dx} = \frac{y^{\frac{1}{2}}}{x^{\frac{1}{2}}}[/tex]Step 3: Evaluate
Substitute in point [Derivative]: [tex]\displaystyle \frac{dy}{dx} = \frac{(4)^{\frac{1}{2}}}{(1)^{\frac{1}{2}}}[/tex]Exponents: [tex]\displaystyle \frac{dy}{dx} = \frac{2}{1}[/tex]Division: [tex]\displaystyle \frac{dy}{dx} = 2[/tex]Topic: AP Calculus AB/BC (Calculus I/II)
Unit: Implicit Differentiation
Book: College Calculus 10e
This circle is centered at the origin, and the length of its radius is 2. What iS
the circle's equation?
Answer:
Step-by-step explanation:
If the center of the circle is at the origin, the general formula for the circle is
x^2 + y^2 = r^2.
Since r = 2 units in this particular problem, the equation of the circle is:
x^2 + y^2 = 2^2, or x^2 + y^2 = 4
Given A(-3,2), B(-1,4), and C(-6,3) *
Rotate 180 degrees around the origin. Name the coordinates of B'.
Answer:
2,6 are the coordinates of B
Step-by-step explanation: