Simplify the polynomial expression. (1/2x +2)(1/2-2x)+(1/4x+7/2)
Simplifying the given polynomial expression is; -(1/4)x³ - (7/2)x² + (214/16)x + (7/2)
How to Simplify Polynomial Expressions?We want to simplify the polynomial expression;
((1/2)x + 2)((1/2) - 2x) + ((1/4)x + (7/2))
Let us expand the first bracket to get;
((1/2)x * (1/2) + (2 * (1/2)) - ((1/2)x * 2x) - (2 * 2x))
⇒ (1/4)x + 1 - x² - 4x
⇒ 1 + (15/4)x - x²
Thus, our expression is now;
(1 + (15/4)x - x²)((1/4)x + (7/2))
This can be multiplied out to give;
(1/4)x + (15/16)x - (1/4)x³ + (7/2) + (105/8)x - (7/2)x²
= -(1/4)x³ - (7/2)x² + (107/8)x + (15/16)x + (7/2)
= -(1/4)x³ - (7/2)x² + (214/16)x + (7/2)
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I’m confused! About this whole thing can someone help me
Answer:
Step-by-step explanation:try using quizlet
Question 1 of 10
What can you say about the y-values of the two functions f(x) = -5* +2 and
g(x)=-5x² +2?
A. f(x) and g(x) have equivalent maximum y-values.
B. The maximum y-value of f(x) approaches 2.
C. g(x) has the largest possible y-value.
D. f(x) has the largest possible y-value.
SUBMIT
In the given function, the Statement B and C are correct.
According to the statement
We have to find that the y-values of the two functions.
So, For this purpose, we know that the
Function is an expression, rule, or law that defines a relationship between one variable and another variable
From the given information:
The given functions are:
f(x) = -5* +2 and g(x)=-5x² +2
In these functions, we see that the when we solve these functions
Then
The maximum y-value of f(x) approaches 2.
And when we solve the function g(x) then g(x) has the largest possible y-value.
Then the statements in the two functions are the Statement B and C correct.
So, In the given function, the Statement B and C are correct.
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An open rectangular box (no top) with volume 9 cubic meters has a square base. Express the surface area S of the box as a function of the length x of one of the sides.
In linear equation, S = x2 + 36/x the surface area S of the box as a function of the length x of one of the sides.
What in mathematics is a linear equation?
There are only one or two variables in a linear equation. No variable can be multiplied by a number larger than one or used as the denominator of a fraction in a linear equation. All of the points fall on the same line when you identify the values that together make a linear equation true and plot those values on a coordinate grid.Let x = length of the sides of the base, and h = the height. The volume is given as 9 m3
Volume = area of base * height
9 = x2*h
So 9/x2 = h
The surface area, S, of the box is:
S = (Area of Base) + 4*(Area of a Vertical Side)
S = x2 + 4 * (xh)
Substitute 5/x2 in place of h:
S = x2 + 4 * x * (9/x2)
S = x2 + 36/x
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PLEASE HELP URGENT
If m<4=37°, find m<1,m<2,m<3
i would need a photo of the lines to find the values of other angles
How is the sentence "10 more than p is -3" written as an equation
p-3 = 10
p+10=-3
p+10=3
p 10-3
The equation for the sentence 10 more than p is -3" will be B. p + 10 = -3.
How to calculate the value?It should be noted that an equation illustrates the relationship between the variables that are given.
In this case, the equation for the sentence 10 more than p is -3" will be:
p + 10 = -3
p = - 3 - 10
p = -13
The value of P is -13.
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Answer if you know your right, bur dont answer just for the points
Answer:
c
Step-by-step explanation:
166% is also equal to 1.66 as a decimal. 1 2/3 as a decimal is 1.6666 repeating. It can't be 166% because they are equal.
7/3 is equal to 2 1/3. Without converting it to a decimal, you already know 2 is bigger than 1, so option c is your answer.
Answer:
C.
Step-by-step explanation:
7/3 = 2.3 > 1 2/3
Evan is thinking of a number that contains the digit 2. The digit 2 in Evan's number has 10 times the value of the digit 2 in the number 328,907.
Which number could be the number that Evan is thinking of?
Answer:
Evan could be thinking of 200,000.
Step-by-step explanation:
The digit 2 in 328,907 has values 20,000 so in Evan's number it has the values 200,000.
here are the points on the graph that im finding slope to 3 , 135 and 5 ,225 and 7, 315
EDIT I FOUND THE ANSWER
The slope of the line having points (3,135), (5,225), and (7,315) is 45
Slope:
The ratio of how much y grows as x grows by a certain amount is known as a line's slope. The slope of a line indicates how steep it is, or how much y rises as x rises. Anywhere along the line, the slope remains constant (the same).
The formula of slope for a line(m)=[tex]\frac{y2-y1}{x2-x1}[/tex]
Given the points (3,135) , (5,225) and (7,315)
Consider any two points, Let's say (3,135) and (5,225).
Slope=[tex]\frac{225-135}{5-3}[/tex]
Slope=45
Therefore, The slope of the line having points (3,135), (5,225), and (7,315) is 45
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what is the diameter of a circle? use 3.14 for pi and enter your answer as decimal
The diameter of the circle whose circumference is 47.1cm comes out to be 15cm
Let us assume the diameter of circle whose circumference be x
The formula for circumference of the circle is 2 r
As we are already been provided with the circumference of the circle in the question as 47.1 cm
The radius of circle is half of the diameter of the circle
So, the radius of the circle is x/2
2 r = 47.1
We will use the value of as 3.14 as provided in the question
2 3.14 x/2 = 47.1
3.14x= 47.1
X=47.1/3.14
X= 15cm
So, the diameter of the circle whose circumference is 47.1cm comes out to be 15cm
The correct question is What is the diameter of a circle whose circumference is 47.1 cm? use 3.14 for pi and enter your answer as decimal
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the length of the rectangle is 12 cm more than the width of the perimeter is 68cm find the length and width of this rectangle
The length and width of the rectangle is 23 and 11 cm.
Given, perimeter = 68 cm
A rectangle's perimeter P is determined by the equation P=2l+2w, where l is the rectangle's length and w is its width. In the formula A=lw, where l is the length and w is the width, the area A of a rectangle is determined.
let the width of the rectangle be x.
and length of the rectangle be 12 ₊ x
Formula of the perimeter = 2l ₊ 2w
68 = 2(12 ₊ x) ₊ 2x
68 = 2x ₊ 24 ₊ 2x
68 ₋ 24 = 4x
44 = 4x
x = 44/4
x = 11
Hence the width of the rectangle is 11 cm and length:
12 ₊ x
= 12 ₊ 11
= 23 cm
Hence we get the length and width of the rectangle as 23 and 11 cm.
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Solve the inequality below for
Answer:
[tex]p ≤6[/tex]
Step-by-step explanation:
Inequality: [tex] - 4p +36 ≥2p[/tex]
Collect like terms
→ [tex] - 4p - 2p≥ - 36[/tex]
→ [tex] - 6p≥ - 36[/tex]
Divide both sides by -6
→ [tex] \frac{ - 6p}{ - 6}≤\frac{ - 36}{ - 6} [/tex]
Therefore: [tex]p ≤6[/tex]
I hope this helpsWhich fraction is greater than -2/3 and less than -1/2?? Please help!! Thank you!!
first of all let's recall that on the negative side of the number line, the closer to 0, the greater, so -1 is much greater than -1,000,000.
well, let's simply try to convert both fractions to the same denominator by multiplying top and bottom by 1 or namely the same value, hmmm let's multiply -2/3 by 2/2 = 1, and -1/2 by 3/3 = 1
[tex]-\cfrac{2}{3}\cdot \cfrac{2}{2}\implies -\cfrac{4}{6}\hspace{5em}-\cfrac{1}{2}\cdot \cfrac{3}{3}\implies -\cfrac{3}{6}[/tex]
well, rats, no much wiggling room there, well, let's simply multiply them again by 1, in this case hmmmm 2/2 for both
[tex]-\cfrac{4}{6}\cdot \cfrac{2}{2}\implies \boxed{-\cfrac{8}{12}}\hspace{5em}-\cfrac{3}{6}\cdot \cfrac{2}{2}\implies \boxed{-\cfrac{6}{12}} \\\\\\ \underset{-\cfrac{2}{3}}{\boxed{-\cfrac{8}{12}}}\hspace{5em} < \qquad -\cfrac{7}{12}\qquad < \hspace{5em} \underset{-\cfrac{1}{2}}{\boxed{-\cfrac{6}{12}}}[/tex]
Cora hits the bullseye (the 75 point circle) 19 times during the archery season she hits the 33 point circle 238 times
What is the total number of points for those hits
The value of the given equation is 19 x 75 + 238 x 33 = 9279.
fundamental arithmetic operations:Addition, subtraction, multiplication, as well as division, are the four fundamental arithmetic operations. The division represents one of the most fundamental procedures in our daily work. A large group is divided into equal smaller groups. For instance, divide 25 by 5. The division fact, in this case, in this case, will be 25/5 = 5.
According to the given data:She hits the bullseye = 19 times.
she hits the 33 point circle 238 times.
Total number of points:
19 x 75 + 238 x 33 = 9279
19 x 75 = 1425
238 x 33 = 7854
So,
The value of the given equation is 19 x 75 + 238 x 33 = 9279.
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I understand that the question you are looking for is:
Cora hits the bullseye (the 75 point circle) 19 times during the archery season she hits the 33 point circle 238 times. What is the total number of points for those hits Complete the equation to model the situation_. Enter the correct numbers in the boxes. _ x 75 + _ x 33 =
A change in temperature of 6°C is equivalent to a change in temperature of
°F.
Carlos read 150 words in one minute. He
read 5 times as many words as his younger
brother. How many words did his younger brother
read in one minute?
Answer:
30
Step-by-step explanation:
150/5 = 30
Answer: 30
Step-by-step explanation:
What’s the y and c intercept
Answer:
x - intercept; (80, 0)
y - intercept; (0, ∞)
Step-by-step explanation:
Let Week be w and Amount be A;
We see an inverse proportionality;
[tex]{ \rm{w \: \alpha \: \frac{1}{A } }} \\ \\ { \rm{w = \frac{m}{A} }}[/tex]
m is a constant of proportionality;
When w is 1, A = 68
[tex]{ \rm{ 1 = \frac{m}{68} }} \\ \\ { \rm{m = 68}}[/tex]
Therefore;
[tex]{ \tt{w = \frac{68}{A} + c }} \\ [/tex]
c is a constant;
When w is 0, A is 80
[tex]{ \rm{0 = \frac{68}{80} + c}} \\ \\ { \rm{c = - \frac{17}{20} }}[/tex]
Overall equation:
[tex]{ \rm{y = \frac{68}{x} + \frac{17}{20} }} \\ [/tex]
For x-intercept, y = 0
[tex]{ \rm{ \frac{17}{20} = \frac{68}{x} }} \\ \\ { \rm{x = 80}}[/tex]
For y-intercept, x = 0
y = ∞
Define overlapping.
Answer:
to extend over or past and cover a part of The roof shingles overlap each other. 2 : to have something in common with Baseball season overlaps the football season in September. 1 : to occupy the same area in part The two towns overlap.
Step-by-step explanation:
Jim and Henry have played 41 tennis matches.
Jim has won 23 times.
Henry won the rest.
a) Estimate the probability that Jim wins.
b) Estimate the probability that Henry wins.
Answer:
a) The probability that Jim wins is 0.56.
b) The probability that Henry wins is 0.44.
Step-by-step explanation:
Hope this helps!
(Solving Linear equations)
I’m doing solving linear equations and I need help do I have to do it this way or can I flip the equation and the answer will be the same? 53=8x+5 .
The equation:[tex]53 = 8x + 5[/tex]
Get 5 to cross over the = sign so it meets its kind which is 53 and then changes to minus(-) due to the equality sign.
[tex]53 - 5 = 8x⟹ 48 = 8x[/tex]
Now divide both sides of the equation by 8 to find the value of x
[tex] \frac{48 }{8} = \frac{8x}{8} [/tex]
[tex]6 = x[/tex]
Therefore:
[tex]x = 6[/tex]
ASAP
the actual distance on a map is 50km and on the map it corresponds to 4cm on map
Answer:
1 cm : 12.5 m
Step-by-step explanation:
Answer: 1250000:1
Step-by-step explanation:
Scale factor: 50 km/4 cm=25 km/2 cm
25 km/2 cm=
(25 * 1000 m)/(2 * 1/100 m)= ==> convert to common measurement which is meters.
(25000 m)/(2/100 m)=
(25000*100 m)/(2*100/100 m)=
2500000 m/2 m=1250000/1
oml i need help with this
Answer:
[tex]2x^{4} - 3x^{2} + 7x[/tex]
Step-by-step explanation:
The cost of 4 boxes of pens and 3 boxes of pencils is $22.55. The cost of 3 boxes of pens and 2 boxes of pencils is $16.45. Find the cost of each.
Answer:
One pen is $4.25 and one pencil is $1.85.
Step-by-step explanation:
Let cost of pens be x and cost of pencils be y.
1. 4x+3y=22.55
2. 3x+2y=16.45
Sub. 1.-2.,
x+y=22.55-16.45
x=6.1-y
Sub. x=6.1-y into 1.,
y=1.85
x=4.25
Answer:
Cost of a box of pens = $4.25
Cost of a box of pencils = $1.85
Step-by-step explanation:
Given information:
Cost of 4 boxes of pens and 3 boxes of pencils = $22.55Cost of 3 boxes of pens and 2 boxes of pencils = $16.45Define the variables:
Let x = the cost of a box of pens.Let y = the cost of a box of pencils.Create two equations from the given information:
[tex]\textsf{Equation 1}: \quad 4x + 3y = 22.55[/tex]
[tex]\textsf{Equation 2}: \quad 3x + 2y = 16.45[/tex]
Multiply Equation 1 by 3:
[tex]\implies 3 \cdot 4x + 3 \cdot 3y = 3 \cdot 22.55[/tex]
[tex]\implies 12x + 9y = 67.65[/tex]
Multiply Equation 2 by 4:
[tex]\implies 4 \cdot 3x + 4 \cdot 2y = 4 \cdot 16.45[/tex]
[tex]\implies 12x + 8y = 65.80[/tex]
Subtract the equations to eliminate the term in x:
[tex]\begin{array}{r rr}& 12x+9y = &67.65\\- & 12x+8y = &65.80\\\cline{2-3} & y = & 1.85\end{array}[/tex]
Substitute the found value of y into one of the equations and solve for x:
[tex]\implies 3x + 2y = 16.45[/tex]
[tex]\implies 3x + 2(1.85) = 16.45[/tex]
[tex]\implies 3x + 3.7 = 16.45[/tex]
[tex]\implies 3x =12.75[/tex]
[tex]\implies x=4.25[/tex]
Solution
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Daniel read several pages of a book on Saturday. He only reads 12 pages on sunday which was 25% less than what she read on Saturday. How many pages did Daniel read on Saturday.
Carol Heinrich has lateral filing cabinets that need to be placed along the wall of a storage closet. The filing are each 1 1/2 feet wide and the wall is. 6 feet long. Decide how many cabinets can be placed along the wall
The number of cabinets that can be placed along the wall is 15.
How to calculate the value?It should be noted that in this scenario, we simply have to calculate the perimeter.
This will be:
= 2(length + width)
= 2(1 1/2 + 6)
= 2(7 1/2)
= 15
Therefore, the number of cabinets that can be placed along the wall is 15.
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a sculptor is making scale models of famous stone landmarks. If his model is to be 112 scale and the original landmark weighs 86 tons, solve the equation 12x=86 to determine how many tons his completed sculpture will be.
Based on the fact that the model has a scale of 1/12, solving the equation of 12x = 86 to determine the tons of the completed sculpture gives 7 tons.
How to find the tons that the completed sculpture weighs?The model is said to have a scale of 1/12 of the original stone landmark which means that if the original famous landmark weighs 86 tons, the tons of the model can be found by the formula:
12x = 86
When solving for x which is the tons of the completed sculpture, the weight would be:
12x = 86
x = 86 / 12
x = 7 tons
In conclusion, the completed sculpture would weigh 7 tons.
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Which expression is equivalent to -6 -(-4)
Answer:
B, -6+4
Step-by-step explanation:
By using the distributive property on -(-4) you multiply the negative by -4, which makes it a positive, aka +4
- a negative x a negative = positive
- negative x positive = negative
- positive x positive = positive
Therefore, you get -6+4.
.......................
Answer:
Step-by-step explanation:
6.92
Hi, id like help with answering D I'm confused on it in general. and can (a, (b and (c be checked i feel like doing most of it is wrong. A response before 11:50 would be GREATLY appreciated. non-calc math with physics
Using it's concept, the average rate of change of the function on the interval [0,2] is of -1.5.
Before going into the average rate of change, the other items are correct.
What is the average rate of change of a function?The average rate of change of a function is given by the change in the output divided by the change in the input. Hence, over an interval [a,b], the rate is given as follows:
[tex]r = \frac{f(b) - f(a)}{b - a}[/tex]
For the interval [0,2], we have that:
f(0) = 3.f(2) = 0.Hence the rate is:
r = (0 - 3)/(2 - 0) = -1.5.
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how do you get the 40-4=36units, can you explain