Answer:
2.4 (6.2-x) > -4.5
I assume this is what you mean.
Answer:
C. The difference of six and two tenths and a number multiplied by two and four tenths is not less than negative four and five tenths
Step-by-step explanation:
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HARDEST QUESTION EVER! WHAT IS 2+2=? NOBODY CAN GET THIS
Answer:
4
Step-by-step explanation:
its 4 duh
Answer:
Step-by-step explanation:
2 + 2 = 4
4.
Mrs. Smith has a cardboard box in the shape of a rectangular prism. She plans to cover it with
paper. The dimensions of the box are 3in by 4in by 6in. What is the minimum amount of paper
needed to completely cover the box?
Answer:
108 inches²
Step-by-step explanation:
Rectangular prism = cuboid
To find how much paper is required to cover the box, we need to find the TSA of the cuboid.
TSA of cuboid = 2 [LB + LH + HB] = 2 [ (3×4) + (3×6) + (4×6) ] = 2 [ 12+18+24 ] = 2 × 54 = 108 inches²
Alexa and Raymond spent the same amount ofmoney at the art store. Alexa bought a paintbrushfor $8 and 4 jars of paint. Raymond bought apaintbrush for $5 and 6 jars of paint. Each jar ofpaint that Alexa and Raymond bought cost thesame amount.What is the x-variable? And what are the 2 y-variable equations?
Alexa and Raymond spent the same amount of money at the art store.
Alexa bought a paint brush for $8 and 4 jars of pant.
Raymond bought a paintbrush for $5 and 6 jars of paint
Let the cost of each jar of paint be x
For Alexa,
Since, she bought a paintbrush for $8 and 4 jars of paint
Total cost = y
Total cost = cost of paint brush + number of jars of paint x cost of each jar of paint
Since the cost of each jar of paint = x
total cost = 8 + 4 * x
y = 4x + 8----------- Alexa total cost equation
For Raymond,
He bought a paint brush for $5 and 6 jars of paint
Since, the cost of each jar of paint = x
Total cost = y
y = 6 * x + 5
y = 6x + 5 ---------- Raymond equation
The x - variable is the cost of each jar of paints
Lydia graphed ADEF at the coordinates D (-2,-1), E (-2, 2), and F (0,0). She thinks ADEF is a right triangle. Is Lydia's assertion correct?
A) Yes, the slopes of EF and DF are opposite reciprocals.
B) Yes, the slopes of EF and DF are the same.
C) No, the slopes of EF and DF are not opposite reciprocals.
D) No, the slopes of EF and DF are not the same.
The true statement is (c) No; the slopes of segment EF and segment DF are not opposite reciprocals.
Right trianglesRight triangles have a pair of perpendicular lines
Coordinates
The coordinates are given as:
D = (-2,-1)E = (-2,2)F = (0,0)SlopesStart by calculating the slopes of lines DF and EF using:
\(m = \frac{y_2 -y_1}{x_2 -x_1}\)
So, we have:
\(m_{DF} = \frac{0 + 1}{0 +2}\)
\(m_{DF} = \frac{1}{2}\)
Also, we have:
\(m_{EF} = \frac{0 -2 }{0+2}\)
\(m_{EF} = \frac{-2 }{2}\)
\(m_{EF} = -1\)
For the triangle to be a right triangle, then the calculated slopes must be opposite reciprocals.
i.e.
\(m_1 = -\frac{1}{m_2}\)
By comparison, the slopes of both lines are not opposite reciprocals.
Hence, the true statement is (c)
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Answer:
c
Step-by-step explanation:
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what is √29 Place a dot on the number line at the BEST approximation
Answer:
5.4
Step-by-step explanation:
square of 29 = 5.385164807
5.385164807 estimated is 5.4
based on the graph which inequality is correct for a number that is to the left of -4 8 7 6 5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8
We are asked to decide on an inequality based on a graph.
The correct inequality among the listed ones is -6 < -4
and corresponds to the following graph:
If a polynomial function has integer coefficients, then every rational zero of the function has the form p/q, where p is a factor of the ? and q is a factor of the ?
If a polynomial function has integer coefficients, the every rational zero of the function has the form p/q, where p is a factor of the constant term and q is a factor of the leading coefficient.
The rational zero theorem says that if a polynomial has integer coefficients then any rational zeros must be of the form p/q where p is the factor of the constant term and q is the factor pf the leading coefficients.
The rational zero theorem is used to determine the rational roots of a polynomial function.
Rational Zero Theorem statement:-
The rational zero theorem states that each rational zero(s) of a polynomial wit integer coefficients
f(x) = anxⁿ + an-1xⁿ⁻¹ + ... + a₂x² + a₁x + a₀ is of the form p/q where,
p is a factor of the constant a₀,
q is a factor of the leading coefficient an,
and p and q are relatively prime.
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The rectangle below has the dimensions:
5.3 × 5.7
Create another rectangle that is scaled to 4
times the size of the current rectangle.
Answer:
A rectangle of 10.6 x 11.4 dimensions.
Step-by-step explanation:
(5.3*2)*(5.7*2)=5.3*4*5.7=10.6x11.4.
You can sand 4/9 square yard of wood in 1/2 hour. How many square yards can you sand in 3.2 hours? Justify your answer.
Answer:
4/9 = 1/2 x
Step-by-step explanation: 2.84 sands
A ship traveled 25° South of West. After 250 miles changed direction to 70° East of South. After it traveled 45 miles further, find the distance and direction of the ship from its starting point.
We can approach this problem by breaking down the two displacements of the ship into their respective x- and y-components and then adding them together to find the net displacement.
For the first displacement, the ship traveled 25° South of West for 250 miles. This can be broken down into an x-component and a y-component as follows:
x = 250 cos(25°) (to the west) y = -250 sin(25°) (to the south)
For the second displacement, the ship changed direction to 70° East of South and traveled 45 miles further. This can also be broken down into an x-component and a y-component:
x = 45 cos(70°) (to the east) y = -45 sin(70°) (to the south)
To find the net displacement, we can add the x-components and y-components separately:
total x = 250 cos(25°) + 45 cos(70°) total y = -250 sin(25°) - 45 sin(70°)
We can use these values to find the distance of the ship from its starting point by using the Pythagorean theorem:
distance = sqrt((total x)^2 + (total y)^2)
Substituting the values from above and evaluating:
distance = sqrt((250 cos(25°) + 45 cos(70°))^2 + (-250 sin(25°) - 45 sin(70°))^2)
distance ≈ 272.8 miles
To find the direction of the ship from its starting point, we can use the inverse tangent function to find the angle:
angle = atan(total y / total x)
Substituting the values from above and evaluating:
angle ≈ -65.1°
Since the angle is negative, we know that the direction is to the west of south. Therefore, the ship is approximately 272.8 miles away from its starting point in a direction that is 65.1° west of south.
Can someone help me please
Answer:
A. addition property of equality
Step-by-step explanation:
To make x stand alone, "5" was added to both sides of the equation. The property that is applied here is the addition property of equality.
Adding "5" to both sides of the equation makes the equation balanced.
The answer is: A. addition property of equality
I am stuck please help with this graph.
An equation for the function graphed above include the following: g(x) = -1/4|x + 1| - 2.
How to interpret and determine the equation of g(x)?By critically observing the graph of this absolute value function, we can reasonably infer and logically deduce that the parent absolute value function f(x) = |x| was vertically compressed by a factor of 1/4, reflected over the x-axis, followed by a vertical translation 2 units down, and then a horizontal translation to the left by 1 unit, in order to produce the transformed absolute value function as follows;
f(x) = |x|
y = A|x + B| + C
g(x) = -1/4|x + 1| - 2
In conclusion, the value of the variables A, B, and C are -1/4, 1, and 2 respectively.
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Use inductive reasoning to predict the most probable next number in the list.
3, 9, -3, 3, -9, -3, -15, -9, -21, ?
Need Help
Answer: -27
Step-by-step explanation: Use inductive reasoning to predict the most probable next number in the list.
3, 9, -3, 3, -9, -3, -15, -9, -21, ?
We can start by looking at the differences between consecutive terms in the list:
9 - 3 = 6 -3 - 9 = -12 3 - (-3) = 6 -9 - 3 = -12 -3 - (-9) = 6 -15 - (-3) = -12 -9 - (-15) = 6 -21 - (-9) = -12
Notice that the differences alternate between positive 6 and negative 12. This suggests that the pattern involves adding 6, then subtracting 12, and then adding 6 again. Applying this pattern to the last term in the list (-21), we get:
-21 + 6 = -15 -15 - 12 = -27 -27 + 6 = -21
Therefore, we predict that the most probable next number in the list is -27.
PLEASE HELP AND SHOW THE WORK
An equation of the line that goes through the point (-1, -3) and (3, 5) is y = 2x - 1.
An equation of the line in slope-intercept form that is perpendicular to the equation for obstacle 1 is y = -x/2 + 3.
How to determine an equation of this line?In Mathematics, the point-slope form of a straight line can be calculated by using the following mathematical expression:
y - y₁ = m(x - x₁) or \(y - y_1 = \frac{(y_2- y_1)}{(x_2 - x_1)}(x - x_1)\)
Where:
m represent the slope.x and y represent the points.At data point (-1, -3), a linear equation in slope-intercept form for this line can be calculated by using the point-slope form as follows:
\(y - y_1 = \frac{(y_2- y_1)}{(x_2 - x_1)}(x - x_1)\\\\y - (-3) = \frac{(5- (-3))}{(3-(-1))}(x -(-1))\\\\y +3 = \frac{(5+3)}{(3+1)}(x +1)\)
y + 3 = 2(x + 1)
y = 2x + 2 - 3
y = 2x - 1
In Mathematics, a condition that must be met for two lines to be perpendicular is given by:
m₁ × m₂ = -1
2 × m₂ = -1
m₂ = -1/2.
At point (-4, 5), an equation of the line can be calculated by using the point-slope form as follows:
y - y₁ = m(x - x₁)
y - 5 = -1/2(x + 4)
y = -x/2 - 2 + 5
y = -x/2 + 3
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find the area of a rectangle with a length of 10 inches and a width of 4 inches
Answer:
40 in²---------------------
Formula for area of a rectangle with dimensions l and w is:
A = lwSubstitute 10 for l and 4 for w:
A = 10*4A = 40 in²What are the zeros of the function f(x) = x2 – 10x + 21?
help bro
Answer:
3, 7
Step-by-step explanation:
"Zeros" means solutions to the equation f(x) = 0. In other words, what are the values of x that make the function's value equal to zero?
This one can be solved by factoring.
\(x^2-10x+21=0\\(x-7)(x-3)=0\\x-7=0 \text{ or } x-3=0\\x=7 \text{ or } x=3\)
1/2 (2x + 5) = 3/4 (x + 1) + 5/2 show your work!!:)
Answer: 0
Step-by-step explanation:
1/2(2x+5)=3/4(x+1)+5/2
distribute 1/2 to 2x and 5
distribute 3/4 to x and 1
1/4x+5/2=5/2
subtract 5/2 to 5/2
1/4=0
multiply 1/4 by the reciprocal
4/1*1/4=0*4/1
Answer= 0
The circumference of a sphere was measured to be 72 cm with a possible error of 0.5 cm. (a) Use differentials to estimate the maximum error in the calculated surface area. (Round your answer to the nearest integer.) 22.91 Correct: Your answer is correct. cm2 What is the relative error
Answer:
dA(s) = 22,917 cm² maximum error
dA(s) /A(s) = 0,01389 or 1,38 % relative error
Step-by-step explanation:
The Volume of a sphere is:
V(s) = 4/3)*π*r³ where r is the radius of circumference
If the length of circumference is 72 cm then
L (c) = 72 = 2*π*r
r = 72/2*π
r = 72/ 6,28 ⇒ r = 11,46 cm
And
L(c) = 2*π*r
Differentiation on both sides of the equation give:
dL (c) = 2*π*dr
dr = dL(c) /2*π
dr = 0,5 / 6,28 ⇒ dr = 0,07961
The surface area Is:
A (s) = 4*π*r²
And the maximum or absolute error is
dA(s) = 8*π*r*dr
dA(s) = 22,917 cm²
The relative error is dA(s) /A(s)
dA(s) /A(s) = 8*π*r*dr/ 4*π*r²
dA(s) /A(s) = 2*(0,07961)/ (11,46)
dA(s) /A(s) = 0,01389 or 1,38 %
If y varies inversely as X and y=16 when X=4,find y when X=32
\(\qquad \qquad \textit{inverse proportional variation} \\\\ \textit{\underline{y} varies inversely with \underline{x}} ~\hspace{6em} \stackrel{\textit{constant of variation}}{y=\cfrac{\stackrel{\downarrow }{k}}{x}~\hfill } \\\\ \textit{\underline{x} varies inversely with }\underline{z^5} ~\hspace{5.5em} \stackrel{\textit{constant of variation}}{x=\cfrac{\stackrel{\downarrow }{k}}{z^5}~\hfill } \\\\[-0.35em] ~\dotfill\)
\(\stackrel{\textit{"y" varies inversely with "x"}}{y = \cfrac{k}{x}}\hspace{5em}\textit{we also know that} \begin{cases} x=4\\ y=16 \end{cases} \\\\\\ 16=\cfrac{k}{4}\implies 64 = k\hspace{9em}\boxed{y=\cfrac{64}{x}} \\\\\\ \textit{when x = 32, what's "y"?}\qquad y=\cfrac{64}{32}\implies y=2\)
I'll mark whoever answers first!! Please help me
Answer:
Center ( -8, 1 )
Radius ( 13 )
The circle shown below has a diameter of 18 centimeters. What is the
approximate area of the shaded sector?
A. 763 cm2
B. 509 cm2
C. 212 cm2
D. 191 cm2
Answer:
191cm^2
Step-by-step explanation:
How many real roots does the equation
have?
x² + 3x +4=0
Answer:
2
Step-by-step explanation:
they are x² and 3x
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SUPER URGENT AND EASY FOR MOST- 30 PTS
factorise
10x + 300
Answer:
10(x + 30)
Step-by-step explanation:
10x + 300
Both terms have 10 in common, so you can factor out 10.
10x + 300 = 10(x + 30)
Write rules for the composition of translations.
Answer: gurl you think i know
Step-by-step explanation:
in ABC, X is the centroid If CW=15 what is WX
Given data:
The given length of CW is CW=15 units.
The expression for the length of WX is,
\(WX=\frac{1}{3}(CW)\)Substitute 15 units for CW in the above expression.
\(\begin{gathered} WX=\frac{1}{3}(15\text{ units)} \\ =5\text{ units} \end{gathered}\)Thus, the WX length is 5 units.
A function is defined by y = 2x + 1. What is the range of the function if the domain is {0, 2, 3}?
{0, 4, 6}
{0, 4, 6}
{1, 5, 7}
{1, 5, 7}
{0, 2, 3}
{0, 2, 3}
{2, 4, 5}
{2, 4, 5}
9514 1404 393
Answer:
{1, 5, 7}
Step-by-step explanation:
For x=0, y = 2·0 +1 = 1
For x=2, y = 2·2 +1 = 5
For x=3, y = 2·3 +1 = 7
The range is the list of y-values, so is {1, 5, 7}.
Point A (4,-3) is reflected over the y- axis. What are
the coordinates of A'?
Answer:
A'(-4,-3)
Step-by-step explanation:
use formula of reflection over y axis
(x,y)=(-x,y)
A(4,-3)=A'(-4,-3)
the answer is (-4,-3).
How can we develop a margin of error through the use of simulation models for random sampling
When using simulation models for random sampling, we can develop the margin of error by multiplying the critical value by the standard error.
What is the margin or error?This is a measure of the error that we get when we use a random sampling model.
It can be found by the formula:
= Critical value x Standard error
If using a z-test, the critical value would be z and the standard error would be (σ / √n). The margin or error would therefore be:
= z (σ / √n)
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-19 + 4k - 15k - k -9
Answer:
Let's simplify step-by-step.
−19+4k−15k−k−9
=−19+4k+−15k+−k+−9
Combine Like Terms:
=−19+4k+−15k+−k+−9
=(4k+−15k+−k)+(−19+−9)
=−12k+−28
Answer:
=−12k−28
Step-by-step explanation:
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Answer:
Step-by-step explanation:
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