Answer:
14
Step-by-step explanation:
14 x 2 = 28
14 x 3 = 42
Perpendicular to the line y=4x+8 and contains the point (-8,4) in standard form.
Rewrite each equation below so that it is solved for y.
Answer:
a) y=1/3x-2
b) y=1/5x+2
c) y=[tex]\sqrt{x}[/tex]
Step-by-step explanation:
Check each set that includes the number shown. 5/9
Answer:
rational numbers and real numbers
Step-by-step explanation:
please mark me brainliest24 rounded to the nearest hundred
Answer:
24.00
Step-by-step explanation:
24.oo to the nearest hundred
if A=x² +xy-6, B=6xy-2x² +1 and C= 3x² +7 -3xy,find :(i) A+B+C (ii)A-B+C (iii)A+B-C
Answer:
I)
[tex]\displaystyle A + B + C = 2x^2 + 4xy + 2[/tex]
II)
[tex]\displaystyle A - B + C = 6x^2 -8xy[/tex]
III)
[tex]\displaystyle A + B - C= -4x^2 + 10xy -12[/tex]
Step-by-step explanation:
We are given the three equations:
[tex]\displaystyle A = x^2 + xy -6,\, B = 6xy - 2x^2 +1 \text{ and } C = 3x^2 + 7 -3xy[/tex]
I)
We want to find:
[tex]\displaystyle A + B + C[/tex]
Substitute:
[tex]\displaystyle = (x^2 + xy - 6) + (6xy -2x^2 + 1) + (3x^2 + 7 -3xy)[/tex]
Rewrite:
[tex]\displaystyle = (x^2 + 3x^2 - 2x^2) + (xy + 6xy - 3xy) + (-6 + 1 + 7)[/tex]
And combine like terms. Hence:
[tex]\displaystyle A + B + C = 2x^2 + 4xy + 2[/tex]
II)
We want to find:
[tex]\displaystyle A - B + C[/tex]
Likewise, substitute:
[tex]\displaystyle = (x^2 + xy - 6) - (6xy - 2x^2 + 1) + (3x^2 + 7 - 3xy)[/tex]
Distribute:
[tex]\displaystyle = (x^2 + xy - 6) + (-6xy +2x^2 - 1) + (3x^2 + 7 - 3xy)[/tex]
Rewrite:
[tex]\displaystyle = (x^2 + 2x^2 +3x^2) + (xy - 6xy -3xy) + (-6 -1 + 7 )[/tex]
And combine like terms. Hence:
[tex]\displaystyle A - B + C = 6x^2 -8xy[/tex]
III)
We want to find:
[tex]\displaystyle A + B - C[/tex]
Substitute:
[tex]\displaystyle = (x^2 + xy - 6) + (6xy - 2x^2 + 1) - (3x^2 + 7 - 3xy)[/tex]
Distribute:
[tex]\displaystyle = (x^2 + xy - 6) + (6xy - 2x^2 + 1) + (-3x^2 - 7 + 3xy)[/tex]
Rewrite:
[tex]\displaystyle = (x^2 - 2x^2 - 3x^2) + (xy +6xy +3xy) + (-6 +1 - 7)[/tex]
And combine like terms. Hence:
[tex]\displaystyle A + B - C= -4x^2 + 10xy -12[/tex]
helpppp quick please!! explanation and answers! thanks:)
Answer:
DO NOT CHEAT
Step-by-step explanation:
IT'S HARAM >:(
Alex is 1.88 meters tall and Belle is 1.73 meters tall. How much taller is Alex than Belle in meters
Answer: 0.15 meters taller
Step-by-step explanation:
Two thirds of a number is 24. Find the number.l
Answer:
36
Step-by-step explanation:
of means multiply and is means equals
2/3 *x = 24
Multiply each side by 3/2
3/2 * 2/3 *x = 24 * 3/2
x = 36
Simplify to create an equivalent expression.
Answer:
A
Step-by-step explanation:
Given
- k - (- 8k + 7) ← distribute parenthesis by - 1
= - k + 8k - 7 ← collect like terms
= 7k - 7 → A
Answer:
7k + 7
Step-by-step explanation:
-k - (-8k + 7)
-k + 8k + 7
7k + 7
give brainliest please I need it to level up
whats the perimiter of the following rectangle? The side says x - 2 and the bottom says 2x + 1
Answer:
6x-2
Step-by-step explanation:
The perimeter of a rectangle is found by
P = 2(l+w)
=2( x-2 + 2x+1)
Combine like terms
P = 2(3x-1)
Distribute
P = 6x-2
Given: three halves times x minus ten equals fifty
Step 1: three halves times x minus ten equals fifty Reason 1: Given
Step 2: three halves times x minus ten plus ten equals fifty plus ten Reason 2: Addition Property of Equality
Step 3: three halves times x equals sixty Reason 3: Simplify
Step 4: three halves times x times two thirds equals sixty times two thirds Reason 4: Division Property of Equality
Step 5: x = 40 Reason 5: Simplify
Choose which reason is incorrect.
Reason 2
Reason 3
Reason 4
Reason 5
Answer:
Reason 4Step-by-step explanation:
All the reasons are correct apart from the 4th.
Step 4 involves multiplication of both sides by (2/3). Thee reason given is: "Division property of equality", which is wrong as division is not applicable.
Answer:
Reason 4 is correct I just did the quiz
The Garcia family has two cars. Last week, the first car consumed 30 gallons of gas and the second consumed 25 gallons of gas. The two cars drove a combined total of 1,250 miles, and the sum of their fuel efficiencies was 45 miles per gallon. What was the fuel efficiency of each of the cars last week?
Answer:
25 and 20 milies/gallons
Step-by-step explanation:
Let the fuell efficientcy of the first and the second car be f and s in gallons/miles.
Then the distance traveled by car 1 is 30 f and the car 2 is 25 s.
Since we also know that 1250 is the total distance traveled then
30 f + 25 s = 1250 (1)
Moreover we know that the efficiency is 45 miles/gallon. Hence
f + s = 45
Multiply by 30 we have
30 f + 30 s = 1350 (2)
Subtract the (1) equation from (2) we have
5s = 100
s = 20
f + 20 =45
f = 25
So the efficiency of the first car is 25 miles/gallons while the second one is 20 miles/gallons.
Algebra Nation Section 1 Topic 4 Question 7
the owner of two hotels is ordering towels. he bought 11 hand towels and 22 bath towels for his hotel in Oxford, spending a total of $220. he also ordered 65 hand towels and 14 bath towels for his hotel in Greenpoint, spending $256. how much does each towel cost
Answer:
$4.25
Step-by-step explanation:
11+22+54+14=112
$220+$256= 476
476÷112=$4.25
Help me plz because i don't know how to do it!!!
Answer:
the play area is a circle with radius = 12
Step-by-step explanation:
Circle area = A= π r²
r = radius
A = 144 π = 452.39
Diameter = 2r
= 24
circumference = C = 2π r
= 24 π = 75.4
Q2)
Area = π r²
r = 15
r²= 225
area = 706.5
the width of rectangle is 2w, and the length is (w+5). the perimeter is 40 inches. what are the measurements of the rectangle?
Width = 2w , Length = w+5 , perimeter = 40
Perimeter of rectangle = 2 (Length + Width)
P= 2 (L + w)
40 = 2 [ (w+5) + (2w) ]
40 = 2 ( 3w+5)
40= 6w +10
6w= 40 – 10
6w= 30
w = 30/6
w = 5
Width = 2w = 2(5) = 10
Length = w + 5 = 5+5 = 10
I hope I helped you^_^
Can someone please answer this question.
Use the Pythagorean theorem to solve for the diagonal distance
Diagonal = sqrt(50^2 + 150^2)
Diagonal distance = sqrt(25,000)
Diagonal distance = 158.11 feet
Round to 158 feet.
If the stayed on the sidewalk they would walk 50 + 150 = 200 feet.
The distance they saved = 200-158 = 42 feet
Answer: 42 feet.
Help me prettyy please
Answer:
[tex]y = \frac{3}{5} x + \frac{49}{5} [/tex]
Step-by-step explanation:
slope = -5/3
Perpendicular slopes must be opposite reciprocals of each other: m1 * m2 = –1
With the new slope, use the slope intercept form and the point to calculate the intercept: y = mx + b
the new slope = 3/5
y = 3/5 x + b
8 = -9/5 +b
b = 40/5 + 9/5 = 49/5
y=3/5x + 49/5
the size of an interior angle of a rectangular polygon is(3x)⁹ while the exterior angle is (X-20)⁰.find the number of side of the polygen.
Answer:
12 sides
Step-by-step explanation:
The sum of the exterior angle and the interior angle = 180° , then
3x + x - 20 = 180
4x - 20 = 180 ( add 20 to both sides )
4x = 200 ( divide both sides by 4 )
x = 50
Then
exterior angle = x - 20 = 50 - 20 = 30°
The sum of the exterior angles of a polygon = 360°
The number of sides n is sum divided by 1 exterior angle , that is
n = 360° ÷ 30° = 12
What is a good estimate for the solution to the equation x = 95? How did you come up with your estimate?
Answer:
Answer: My estimation is 5
Step-by-step explanation:
[tex] {x}^{3} = 95[/tex]
Introduce power of ⅓ on all sides:
[tex]( {x}^{3} ) {}^{ \frac{1}{3} } = {95}^{ \frac{1}{3} } \\ \\ {x}^{ \frac{3}{3} } = {95}^{ \frac{1}{3} } \\ \\ x = 4.5629....[/tex]
Approximation / estimation :
[tex]x \approx5[/tex]
Help ASAP, I’ll give brainliest
Show work ty
Step-by-step explanation:
A
3(6+15)
=3(21)
=63
B
5[15-(6+1)]
=5(8)
=40
B
⅓(15)
=5
C
⅓(6+15)
=⅓(21)
=7
E
15/6
=2/1/2 or 2.5
W
2(6)(15-3)
=2(7)
=36
L
4(⅓+⅓+⅓)
=4(1)
=4
L
6/15 - 15/6
=36/90 - 225/90
= -189/90
= -21/10
Kendra bought 235 donuts for $120. Her profit was $35 once she had sold 100 donuts. Which equation below represents Kendra’s profit P(n), as a function of the number sold, n?
P(n)=0.85n-120
P(n)=-0.85n+120
P(n)=0.35n
P(n)=1.55n-120
1.
Which is the graph of the exponential function y = 0.5(0.5)x?
Answer:
The answer is B
Step-by-step explanation:
-(x)+2)=2(3x-6) awnser
Answer:
[tex] -( x) + 2 = 2(3x - 6) \\ - x + 2 = 2 \times 3x - 2 \times 6 \\ - x + 2 = 6x - 12 \\ x \: terms \: togther \\ - x - 6x = - 12 - 2 \\ - 7x = - 14 \\ x = \frac{ - 14}{ - 7} = 2 \\ x = 2 \\ thank \: you[/tex]
What is the equation of the line that is parallel to the line 5x + 2y = 12 and passes through the point (-2, 4)?
O y=
--x-1
Oy=-x+5
O y=-x-1
O y=x+5
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Mark this and retum
The equation of the line that is parallel to the line 5x + 2y = 12 and passes through the point (-2, 4) is y = [tex]-\frac{5}{x} x-1[/tex]
Parallel lines
Parallel lines have the same slope. Therefore, using slope intercept form.
y = mx + b
m = slope
b = y-intercept
Therefore,
5x + 2y = 12
2y = -5x + 12
[tex]y = -\frac{5}{2} x+12[/tex]
The slope of the line is [tex]-\frac{5}{2}[/tex]
Base on parallelism, for the line that passes through (-2, 4)
y = mx + b
4 = [tex]-\frac{5}{2} (-2)+b[/tex]
b = -1
Therefore,
y =
learn more on parallel lines here: https://brainly.com/question/18245473
Find the distance d(A,B) between points A and B.
A(1. - 6); B(1,7)
Answer:
d = 13
Step-by-step explanation:
d = √(x2 - x1)² + (y2 - y1)²
d = √[7 - (-6)]² + (1 - 1)²
d = √(13)² + (0)²
d = √169
d = 13
To keep it simple i am confused about this problem what can i do?
*show work
*will give brainlist
Answer:
11. 10, 20,30,40,50,60,70
12. 35, 45,55,65,75,85,95
Step-by-step explanation:
10 dollars per week for 7 weeks in equivalent to 10x7 which equals $70.
If you already had $25 you would do 10x7+25. Using PEMDAS you would multiply first (10x7=70) then add 25 (70+25=95)
A sheet of standard-size copy paper measures 8.5 in. by 11 in. If a ream (500 sheets) of this paper has a volume of 187(to the third power) in. , how thick is the ream.
I need an explanation on how to do it please.
============================================================
Explanation:
The area of any given sheet of paper is 8.5*11 = 93.5 square inches.
Divide the volume over this area to get the height of the stack
187/(93.5) = 2
The stack is 2 inches tall.
Extra info: The thickness of each piece of paper is 2/500 = 0.004 of an inch which approximates to about 0.1016 mm.
In this diagram, BAC~EDF. If the area of BAC=15 in2, what is the area of EDF? 4, 5.
Enter a decimal rounded to the tenths.
Answer:
9.6 square inches.
Step-by-step explanation:
We are given that ΔBAC is similar to ΔEDF, and that the area of ΔBAC is 15 inches. And we want to determine the area of ΔDEF.
First, find the scale factor k from ΔBAC to ΔDEF:
[tex]\displaystyle 5 k = 4[/tex]
Solve for the scale factor k:
[tex]\displaystyle k = \frac{4}{5}[/tex]
Recall that to scale areas, we square the scale factor.
In other words, since the scale factor for sides from ΔBAC to ΔDEF is 4/5, the scale factor for its area will be (4/5)² or 16/25.
Hence, the area of ΔEDF is:
[tex]\displaystyle \Delta EDF = \frac{16}{25}\left(15\right) = 9.6\text{ in}^2[/tex]
In conclusion, the area of ΔEDF is 9.6 square inches.
- I am a multiple of 5
- My hundreds digit is equal to my tens digit
- the sum of my digit is 19
what number am I?
Answer:
The number is 775
7=7
7+7+5=19
775 is a multiple of 5