2x (29 +28y )
That is the answer
:) have a good day
HAPPY HOLIDAYS❄️☃️
#4
Graph the equation.
Y=|x|-2. Let x = -3, -2, -1, 0, 1, 2, 3
Graph of the equation is attached in the following image .
Input is x = - 3 , - 2 , - 1 , 0 , 1 , 2 , 3
Output is y = 1 , 0 , - 1 , - 2 , - 1 , 0 , 1
Since , the given function is a modulus function , graph will be V - shaped .
Modulus Function : A function f ( x ) = | x | is a modulus function , it takes positive value as an output . If x is negative , then - x is the output . It takes the absolute value of a function .
Hence , graph of the equation is attached in the following image .
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Tom paid $16 for 4 pounds of jellybeans. How much did he pay for each pound? Write the expression
Answer: 4 dollars/ lbs
Step-by-step explanation:
Tom paid 16 dollars for 4 lbs
16/4=4 dollars/ lbs
Answer:
$4
Step-by-step explanation:
$16 for 4 pounds so divide 16 by 4 to find how much was one pound:
16/4 = 4
I pound cost $4
find the distance from the given point to each of the following. (4, 7, -5) (a) the xy-plane (b) the yz-plane (c) the xz-plane (d) the x-axis (e) the y-axis (f) the z-axis
[tex]So distance from a) xy plane = |-5| = 5 b) yz plane = |4| = 4c) xz plane = |7| = 7d) x-axis = √[(7)^2+(-5)^2] = √[49+25]=√[74] = 8.6023e) y-axis =√[(-5)^2+(4)^2] = √[25+16] =√[41] = 6.4031f) z-axis = √[(4)^2+(7)^2] = √[16+49] = √[65] = 8.0622[/tex]
What is axis?A Cartesian coordinate system in a plane is a system of coordinates that uniquely identifies each point by a pair of numerical coordinates that are the signed distances from two fixed perpendicular oriented lines to the point, measured in the same unit of length. An axis is a line that is used to sketch, measure, rotate, etc. a curve or a figure. The Cartesian axes in the plane or in space, which are often mutually perpendicular, are the most frequently seen axes. Axes, pronounced "ax-ees," is the plural form of "axis." The phrase is also used to describe a line that passes across a group of aircraft. The line on a graph that passes 0 horizontally (left to right).
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Amiya answered 19/20 of questions correctly on her last exam.
What percent of questions did Amiya answer correctly on her last exam?
Answer:
95%
Step-by-step explanation:
19÷20×100=95
Hope it's right
Answer:
[tex]95\ percent[/tex]
Step-by-step explanation:
[tex]We\ know\ that:\\Percentage = Ratio*100\\Or,\\Percentage=\frac{Observation}{Total}*100\\Here,\\No. of\ answers\ Amiya\ gets\ correct=19\\Total\ no.\ of\ answers\ in\ the\ test=20\\Hence,\\Percentage\ of\ answers\ Amiya\ gets\ correct= \frac{19}{20}*100\\=19*5\\=95\ percent\\[/tex]
Is the following relation linear, quadratic, or cubic? If it is linear, find the equation. Explain your reasoning and include all of your work in your final answer.
1. Q = { (x,y) : (0,0), (1,2), (2,16), (3, 54), (4, 128), (5,250) }
2. R= { (x,y) : (2,3), (4,4), (6,5), (8,6) }
3. S = { (x,y), : (1,3), (2,9), (3,17), (4,27), (5, 39), (6,53) }
Answer:
Q = { (x,y) : (0,0), (1,2), (2,16), (3, 54), (4, 128), (5,250) } is cubic
R= { (x,y) : (2,3), (4,4), (6,5), (8,6) } is linear
S = { (x,y), : (1,3), (2,9), (3,17), (4,27), (5, 39), (6,53) } is quadratic
Equation of the linear relation is
y = 0.5x + 2
Step-by-step explanation:
A linear equation has the form y = mx + b where m is the slope and b is the y-intercept. Slope is a constant and growth of function is determined by x value
A quadratic equation has the general form y = ax² + bx + c where a b and c are constants. Growth of the function is mostly determined by the square of x
A cubic equation has the general form y = ax³ + bx² + cx + d where a, b and c are constants. The growth of the function is mostly determined by the cube of x value
Looking at the three relations
#1 is obviously cubic since the value of y appears to be determined by the cube of the value of x. Specifically, when x = 0, y = 0/. When x =1, y = 2 but when x =2, y =16 and 16 is 2x³ = 2(2³) = 2 x 8
Looking at x =3, 2(3³) = 2(27) = 54
So this is a cubic function
#2 is obviously a linear function When x increases by 2, y increases by 1 so it is a linear growth
#3 In this equation we can see that the y value appears to be controlled by the square of x. The specific equation is y = x² + 3x -1
For the linear equation, find the slope from the first two points
m = (4-3)/(4-2) = 1/2 = 0.5
So the equation is y = 0.5x + b
To find b, use the coordinates of any point. Let's choose (4,4)
At x = 4, y = 4 so
4 = (0.5)4 + b = 2+b yielding b = 2
So the equation is y = 0.5x + 2
Relation Q is not linear, relation R is linear with the equation y = (1/2)x + 2, and relation S is not linear.
1: Q = { (0,0), (1,2), (2,16), (3,54), (4,128), (5,250) }
To determine if this relation is linear, quadratic, or cubic,
Examine the differences between the y-values.
Calculate the differences for the given data:
Difference in y-values:
(2-0) = 2
(16-2) = 14
(54-16) = 38
(128-54) = 74
(250-128) = 122
Looking at the differences,
we can see that they are not constant.
In a linear relation, the differences between the y-values would be constant.
Therefore, we can conclude that this relation is not linear.
2: R = { (2,3), (4,4), (6,5), (8,6) }
Similar to the previous relation, let's calculate the differences:
Difference in y-values:
(4-3) = 1
(6-4) = 2
(8-6) = 2
In this case, the differences between the y-values are constant
(both are 2). This indicates a linear relation.
To find the equation, we can use the slope-intercept form (y = mx + b). Let's choose any two points from the relation, for example, (2,3) and (4,4):
Slope (m) = (4-3) / (4-2) = 1/2
m = 1/2
Now, let's plug in the values of one point (2,3) and the slope into the equation:
y = mx + b
3 = (1/2) x 2 + b
3 = 1 + b
b = 2
Therefore, the equation for this linear relation is y = (1/2)x + 2.
3: S = { (1,3), (2,9), (3,17), (4,27), (5,39), (6,53) }
Again, calculate the differences:
Difference in y-values:
(9-3) = 6
(17-9) = 8
(27-17) = 10
(39-27) = 12
(53-39) = 14
The differences between the y-values are not constant, indicating that this relation is not linear.
Hence,
Relation Q is not linear.
Relation R is linear, with the equation y = (1/2)x + 2.
Relation S is not linear.
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OMGGG PLEASE I NEED HELPPPPPPP
Answer:
[tex]\sqrt{3}[/tex], 2, 1
Step-by-step explanation:
sin30=a/h=1/2
a=length of opposite side a =1
h=length of hypotenuse h=2
tan30=a/b=1/√3
a=length of opposite side a =1
b=length of adjacent side a =[tex]\sqrt{3}[/tex]
hope this helps
Answer:
i dont really know
Step-by-step explanation:
What is the simplified form of 1/x-1/y/1/x+1/y?
a. y+x/y-x
b. y-x/y+x
c.x-y/x+y
d.x+y/x-y
Answer:
b
Step-by-step explanation:
Find the exact length of the third side.
Answer: 10
Step-by-step explanation:
You just add them together-
Step-by-step explanation:
using Pythagoras theorem :
hyp²= opp² + adj²
x²= 7² + 3²
x² = 49 + 9
x² = 58
take the root of both sides
x = √58
x = 7.62
Rearrange t2=3x+1 to make x the subject
the equation t² = 3 x + 1 will be written as x = t² / 3 - 1 / 3 with the subject as x.
We are given an equation:
t² = 3 x + 1
We need to solve it so that the subject becomes x.
For this, we will first subtract 1 from both the sides:
t² - 1 = 3 x + 1 - 1
3 x = t² - 1
Now, we will divide both the sides by 3
3 x / 3 = (t² - 1) / 3
x = t² / 3 - 1 / 3
So, the subject is being made as x now.
Therefore, we get that, the equation t² = 3 x + 1 will be written as x = t² / 3 - 1 / 3 with the subject as x.
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MATH HALP PLEEESE I NEEED IT
Answer:
second in first 1 in last and last is 4
Step-by-step explanation:
Answer:
(2x + 3)(x - 7)
Step-by-step explanation:
Given
2x² - 11x - 21
Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term
product = 2 × - 21 = - 42 and sum = - 11
The factors are - 14 and + 3
Use these factors to split the x- term
2x² - 14x + 3x - 21 ( factor the first/second and third/fourth terms )
= 2x(x - 7) + 3(x - 7) ← factor out (x - 7) from each term
= (2x + 3)(x - 7) ← in factored form
PLEASE HELP!! What is the answer?
Subtract 38¢ from $5.60. Include the dollar sign and no spaces in your answer.
Answer:
$5.22
Step-by-step explanation:
you would subtract so 5.60-.38=$5.22
Answer:
$5.22
Step-by-step explanation:
$5.22-0.38
ĺlllllllllllllllllllllll
is y=x^3 one to one?
Answer: Yes
Step-by-step explanation:
Answer:
Its graph is a parabola, and many horizontal lines cut the parabola twice. The function f(x)=x 3, on the other hand, IS one-to-one. If two real numbers have the same cube, they are equal. The horizontal line test is also easy to apply.
Step-by-step explanation:
ASAP Answer this now
For each part of the questions below, use the following situation:
You have 15 coins valued at $3.00. Some of the coins are dimes and some are quarters.
What is the first equation that can be written for this situation?
3x=15
What is the second equation that can be written for this situation?
How many dimes do you have?
How many quarters do you have?
Answer:
3x=15 the x is 5
10+5=15
10 quarters
5 dimes
Step-by-step explanation:
Find the area of a circle that has a diameter of 20 cm.
8 + x/2 = -12 (8 + x divided by 2 = -12) *
Answer:
[tex]8 + \frac{1}{2} x = - 12 \\ 16 + x = - 24 \\ x = - 24 - 16 \\ x - 40[/tex]
Can you mark as BREINLEST
I NEED HELP ON THIS ALSO!! Please help ASAP
100ml
Step-by-step explanation:
l think so
-5 0 1 5 Select the values that make the inequality u < 1 true.
Answer: 0 and -5
Step-by-step explanation:
Answer:
-5 and 0 make the inequality true.
Step-by-step explanation:
-5 and 0 are less than 1, making 1 and 5 greater than one (so 1 and 5 don't apply to this situation)
Can someone help me with this one question please thank you
Find f(3) for f(x)=−5x−2
A. -10
B. -15
C. 13
D. -17
Answer:
f(3) = -17
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) = -5x - 2
f(3) is x = 3
Step 2: Evaluate
Substitute in x: f(3) = -5(3) - 2Multiply: f(3) = -15 - 2Subtract: f(3) = -17solve the right angle trig problem. round to the nearest tenth.
Answer:
x ≈ 16.5
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightGeometry
[Right Triangles Only] SOHCAHTOA[Right Triangles Only] cos∅ = adjacent over hypotenuseStep-by-step explanation:
Step 1: Define
We are given a right triangle. We can use trig to find the missing side length.
Step 2: Identify Variables
POV from the angle measure
Angle = 38°
Adjacent Leg = x
Hypotenuse = 21
Step 3: Solve for x
Substitute [cosine]: cos38° = x/21Isolate x: 21cos38° = xRewrite: x = 21cos38°Evaluate: x = 16.5482Round: x ≈ 16.5Can someone please help?!
Answer:
D. m = -15/1
Step-by-step explanation:
Slope Formula-
m = (y2-y1)/(x2-x1)
Using two random points-
(-1, 13) (0,-2)
-1 = x1
13 = y1
0 = x2
-2 = y2
m = (-2 - 13)/(0-(-1))
m = -15/1
t < –3 or t > 2 is equivalent to –3 < t < 2. WILL GIVE BRAINLYEST
True
False
Answer: False
Step-by-step explanation:
If t<-3, and t>2, that means that all values less than 3, and all values greater than 2 are true.
In the inequality -3<t<2, only values between -3 and 2 are true, so this means they are not equivalent.
Step-by-step explanation:
t>-3 or t<2
THE STATEMENT ABOVE CONTRADICTS THE GIVEN STATEMENT THEREFORE IT IS FALSE
I NEED HELP ASAP IT IS DUE AT MIDNIGHT PLEASEEEEEE!!!!
Answer:
A = -2.2
B = -1.7
C = 1.87
D = 19.97
Step-by-step explanation:
A = 7.4 - 9.6 = -2.2
B = -2.2 + 0.5 = -1.7
C = -1.1(-1.7) = 1.87
D = 18.1 + 1.87 = 19.97
Answer:
A = -2.2
B = -1.7
C = 1.87
D = 19.97
Step-by-step explanation:
A line goes through the points (-4,6) and (-2,3). A line perpendicular to
that line is:
Answer: A line with a slope of 2
Step-by-step explanation: the slope of the line is -1/2 so the negative reciprcal of the slope is 2 (It would be perpendicular to it)
i used m=y2-y2/x2-x1 to figure ou the slope and -(x/y) as the negative reciprcal for the perpendicular line.
Help please! Its late! Xoxo
Answer:
1)B
Step-by-step explanation:
I thought the answer was 110 but the answer was so wrong so I’m doing something wrong. Can someone please help me?
Answer:
b= 50
Step-by-step explanation:
the entire angle equals 80 degrees and a portion of it equals 30. therefore the portion that equals b = 50 because 30+50=80 hope this helps.
which points is of the ordered pair (-4,2)
Answer:2-4
Step-by-step explanation:
Answer:
2-4
Step-by-step explanation:
now please answer my question
Can someone help me pls
Answer:
432 ft^2
Step-by-step explanation:
Answer:
432
Step-by-step explanation:
Lets plug it into the formula
b1 should be the horizontal line on the bottom horizontal line and b2 should be the top horizontal line
so we get b1 = 28 and b2 = 20
according to the formula we should add b1 and b2, getting us 48.
divide 48 by 2: we get 24
24 times h, or the hieght, or 18 is 432
so the answer is 432
could you pls give me brainliest? I only need 1 more brainliest to rank up ;-;