Answer:
Completing the square we get: [tex](x-2)^2-(2)^2[/tex]
and factoring the term we get: [tex]x(x-4)[/tex]
Step-by-step explanation:
We need to complete the square for the expression [tex]x^2-4x[/tex]
For completing the square the expression would be of form [tex]a^2+2ab+b^2=(a+b)^2[/tex]
For given expression we have to add (2)^2 and subtract to make it complete the square.
[tex]x^2-2(x)(2)+(2)^2-(2)^2\\(x-2)^2-(2)^2[/tex]
Now, we have to factor the polynomial using formula [tex](a)^2-(b)^2=(a-b)(a+b)[/tex]
So, [tex](x-2)^2-(2)^2\\=(x-2-2)(x-2+2)\\=(x-4)(x-0)\\=x(x-4)[/tex]
Completing the square we get: [tex](x-2)^2-(2)^2[/tex]
and factoring the term we get: [tex]x(x-4)[/tex]
what is the value of 6^-3
What is the slope of the line y=-2x+1
Answer:
-2
Step-by-step explanation:
The area of a circle is 95.75cm2.
Find the length of the radius rounded to 2 DP.
Answer:
5.52 cm
Step-by-step explanation:
area of circle =pi r^2
r=square root (95.75/pi)
=5.52
If f(x) = x - 3 and g(x) = x^2, what is the value of (fºg)(2)?
1. 1
2. -1
3. 4
4. -4
Answer:
1
Step-by-step explanation:
First we need to find g (2) from g (2) = 2 ^ 2 to 4.
the result is 4, so f (4) asks, so f (4) = 4-3 = 1
The solution is x = 6 7x = 42
True
False
Someone help me ASAP
Help PLS!! (Attached photo only 2 questions you can answer one of them) pls and thank you
Answer:
Yes (Answer to number 9)
Step-by-step explanation:
Isaac's answer is reasonable because if you do 365 times 8 you get 2,920. There are 365 days in a year and he said he drinks 8 glasses a day so that's how you get those numbers.
pneumonoultramicroscopicsilicovolcanoconiosis
unscramble that
Answer:
pneumonoultramicroscopicsilicovolcanoconiosis is the word
Step-by-step explanation:
Find the slope (-3, 7) and (0, - 2)
Can show steps too please I’ll mark u brainliest
Answer:
The answer is -3
Step-by-step explanation:
Slope means the rate of change of a line which is the letter m. Whenever you need to find slope remember this: m= y2-y1 over x2-x1.
(x1,y1)= (-3,7), ( x2, y2) = (0,-2) so the slope is -3.
I will mark u as the brainiest if u get this correct
thx
x
Answer:first fine the perimeter 42cm then do the lenth then width and u get the answer
Step-by-step explanation:
or find it on google
Answer:
length= 14cm and width= 7cm
Step-by-step explanation:
The ratio of the length to width is 2:1 so [tex]\frac{length (l)}{width(b)} =\frac{2}{1}[/tex] The perimeter is the sum of 2 length sides and 2 width sides so [tex]perimeter=length+length+width+width=2length+2width[/tex] Now from the ratio we know [tex]\frac{length (l)}{width(b)} =2[/tex] so [tex]length=2width[/tex] So put that into the perimeter equation[tex]perimeter=2(2width)+2width[/tex] so the perimeter is 42cm[tex]42cm=2(2width)+2width\\42cm=4width+2width\\42cm=6width\\width=7cm[/tex] Since length is twice the width, length is 14 cmPlease help this is urgent I will be giving brainlyest to the first and correct answer!!!!! This question will be worth a lot of points too. Please do it right and fast this is really urgent! Tysm!
Answer:
Step-by-step explanation:
Hope this helped (:
5x = 10 can someone help me
Answer:
X=2
Step-by-step explanation: To get a single
x
, divide
5
x
by
5
.
Whatever you do to one side of the equals sign, you must do to the other side. This means, to get the right answer, you must do
5
x
5
=
10
5
The
5
's on the left side of the equals sign cancel out so it would make
5x5=105
and then
x=105105
is equal to
2
so...
x=2
Answer: Hey user! x = 2.
Step-by-step explanation: Step 1: Divide both sides by 5.
5x /5 = 10 /5
x=2
Consider marking this answer as brainliest if it helped you out.
The table below shows the proportional relationship between the weight of dog food, in ounces, and the number of bags of dog food:
Number of Bags
of Dog Food Number of Ounces
of Dog Food
3
36
4
48
5
60
What is the constant of proportionality?
12
36
39
72
Answer: 12
3×12=36
4×12=48
5×12=60
I hope this is good enough:
In a system of two linear equations, the lines represented by each equation have the same slope and different y-intercepts. Which would be the total number of solutions to the system of equations?
Answer:
There will be no common solution
Step-by-step explanation:
Given that the lines that represent the equations in the system of the two linear equations have equal slope but that their y-intercept are different, we have;
The two lines are parallel to each other
The two lines are different lines, given that they have different y-intercept
By definition of parallel lines, we have that the two lines representing the two equations will never meet, and therefore, both equations do not have a common solution which is a value that satisfies both equations
Therefore, the two equations in the linear system of equations, do not have a common solution
Jaythen finds a shirt on sale for 10% off at a store. The original price was $20. Jaythen must also pay 8.5% sales tax. How much is the shirt before taxes? *
How much does Jaythen pay total for his shirt after taxes? *
Answer:
the shirt before taxes is $18. the shirt after taxes is 19.53
Step-by-step explanation:
you multiply 20x.10 and you'll get 2. so you subtract 2 from 20, that's $18.
to get taxes, you multpliply 18x.085 and you get $1.53.
you then add $1.53 to 18 and you get your total price of $19.53
Answer:
Before taxes, the shirt was $18. After taxes. the shirt is $19.53
Step-by-step explanation:
i need to find x in #9 and w in #10
Step-by-step explanation:
9. 131+106+67+x=360
237+67+x=360
304+x=360
x=56
10. 90+90+146+w=360
180+146+w=360
326+w=360
w=34
what is the slope of line QR if Q(11,-2) and R(11,6)
Answer:
noe lsoocslo oqiuepcn
Step-by-step explanation:
mcm
.Ahmed is making pancakes, his recipe uses 150g of flour for 8 pancakes. How much flour will he need to make 12 pancakes? Remember to give units in your answer.
Answer:
Ahmed needs 225g of flour to make 12 pancakes.
Step-by-step explanation:
With the information provided, you know that the recipe uses 150g of flour for 8 pancakes and you can use a rule of three to find the amount of flour needed to make 12 pancakes:
150g → 8 pancakes
x ← 12 pancakes
x=(150*12)/8= 225g
According to this, the answer is that Ahmed needs 225g of flour to make 12 pancakes.
HELP NOWWWW!!!! A skier needs to buy new ski poles during a trip to Utah. The price of the poles is $24 and the sales tax is 4.7%. What is the total cost of the poles, including tax, rounded to the nearest cent?
Answer:
$25.13
Step-by-step explanation:
SALES PRICE = COST PRICE + SALES TAX
= $24 + $1.128 = $25. 128
to the nearest cent would be .13
WHOEVER IS CORRECT GETS BRAINLIEST
The high temperature one day was 30°F. Then
the temperature dropped 23 degrees during the
night. Does the expression 30 + (-23) represent
the temperature at night? Explain
PLEASE EXPLAIN THE LAST PART BCS THEN IT GET MARKED WRONG. THANKS YOUUU
WHOEVER ANSWERS FIRST GETS BRAINLIEST
Answer:
yes because 30 + -23 and 30-23 gives the same value which is 7
Step-by-step explanation:
What is the solution of the linear-quadratic system of equations?
y=x' + 5x + 7
y = x +4
Answer:
[tex]\mathrm{Therefore,\:the\:final\:solutions\:for\:}y=x^2+5x+7,\:y=x+4\mathrm{\:are\:}[/tex]
[tex]\begin{pmatrix}x=-1,\:&y=3\\ x=-3,\:&y=1\end{pmatrix}[/tex]
Step-by-step explanation:
Given the system of the equations
[tex]y=x^2\:+\:5x\:+\:7[/tex]
[tex]y\:=\:x\:+4[/tex]
steps to solve the system of the equations
[tex]\begin{bmatrix}y=x^2+5x+7\\ y=x+4\end{bmatrix}[/tex]
subtract the equations
[tex]y=x^2+5x+7[/tex]
[tex]-[/tex]
[tex]\underline{y=x+4}[/tex]
[tex]y-y=x^2+5x+7-\left(x+4\right)[/tex]
[tex]0=x^2+4x+3[/tex]
solving
[tex]0=x^2+4x+3[/tex]
[tex]\left(x+1\right)\left(x+3\right)=0[/tex]
[tex]x+1=0\quad \mathrm{or}\quad \:x+3=0[/tex]
[tex]x=-1,\:x=-3[/tex]
[tex]\mathrm{Plug\:the\:solutions\:}x=-1,\:x=-3\mathrm{\:into\:}y=x^2+5x+7[/tex]
substitute [tex]x=-1[/tex] into [tex]y=x^2+5x+7[/tex]
[tex]y=x^2+5x+7[/tex]
[tex]y=\left(-1\right)^2-5\cdot \:1+7[/tex]
[tex]y=1-5+7[/tex]
[tex]y=3[/tex]
Now substitute [tex]x=-3[/tex] into [tex]y=x^2+5x+7[/tex]
[tex]y=x^2+5x+7[/tex]
[tex]y=\left(-3\right)^2+5\left(-3\right)+7[/tex]
[tex]y=3^2-15+7[/tex]
[tex]y=3^2-8[/tex]
[tex]y=9-8[/tex]
[tex]y=1[/tex]
[tex]\mathrm{Therefore,\:the\:final\:solutions\:for\:}y=x^2+5x+7,\:y=x+4\mathrm{\:are\:}[/tex]
[tex]\begin{pmatrix}x=-1,\:&y=3\\ x=-3,\:&y=1\end{pmatrix}[/tex]
Help!!!!! Very urgent!!!!!!
Answer:
π /2
Step-by-step explanation:
Which is the cubic polynomial in standard form
with roots 3, -6, and 0?
Group of answer choices
x^2 - 3x - 18
x^3 - 3x^2 - 18x
x^2 + 3x - 18
x^3 + 3x^2 - 18x
Answer:
D
Step-by-step explanation:
Roots are the solution to a polynomial equation. So construct the factors of the polynomial. (x-3)(x+6)(x-0). Now multiply the factors and you will get option D.
Neveah goes out to dinner at a restaurant. The bill for dinner is $57.25, and Neveah gives the server a 20% tip. What is the total cost for dinner?
Need answer please :(
Answer:
11.45 + 57.25
Step-by-step explanation:
$68.70 is the correct answer because the question asks WHAT IS THE TOTAL COST FOR THE DINNER
The total cost he paid is $68.7
What is percentage?Percentage, a relative value indicating hundredth parts of any quantity. One percent (symbolized 1%) is a hundredth part;
Given:
Bill for dinner is $57.25
20% tip was given
So, 20% on 57.25 is
=0.20 * 57.25
=11.45
Hence, total he paid = 57.25 +11.45 = 68.7
Learn more about percentage here:
https://brainly.com/question/13244100
#SPJ2
If you worked 120 hours in the summer and were paid $10 an hour, how much money would you expect to receive?
consider the conditional statement: if it swims in the water, then it is a fish
What is the truth value of the statement in this question? If false, give a counterexample! Pls help! I’ll give brainliest :)
it is not true, some things that swim in water are not fish. counterexample: whales (they swim in water but aren't fish)
TIMED
Find the slope
Answer: The slope is -1.
I need help with this: 100 marked down 65%
Answer:
The item is now 35$.
Step-by-step explanation:
First, find 65% of 100, which is 65. Then subtract the discount, or the "mark down" from 100. This gets you $35, so the item is $35 after the mark down.
(Will Mark BRAINLIEST)
Which of the following correctly completes the equation below?
0.63 x ____ = 630
101
102
103
100
Answer:
100 is the closest but that only leaves you with 63 not 630. It would have to be 1000.
Step-by-step explanation:
Peter works as a delivery person for a bike shipping company. The graph shows a linear model for his
delivery times on different days.
(a) what is the equation of the line, first written in point-slope form and then written in slope- intercept form? show how you determined the equation.
(b) based on the linear model, predict how long it initially took peter to deliver his packages (y-intercept) approximately how much did his delivery time decrease per day (slope)? Complete sentences
Answer/Step-by-step explanation:
a. Using a point on the graph, (6, 12), and the slope of the line, we can first generate an equation in the point-slope form, given as [tex] y - b = m(x - a) [/tex], where,
m = slope, and (a, b) is a point on the line.
Using two points, (6, 12) and (3, 21), let's find slope, m.
[tex] slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{21 - 12}{3 - 6} = \frac{9}{-3} = -3 [/tex]
Using a point (6, 12) and slope, m = -3, generate an equation in the point-slope form by substituting a = 6, b = 12, and m = -3 in [tex] y - b = m(x - a) [/tex].
✅Equation in point-slope form would be:
[tex] y - 12 = -3(x - 6) [/tex]
Rewrite this to make it be in the slope-intercept form, [tex] y = mx + b [/tex].
[tex] y - 12 = -3(x - 6) [/tex]
[tex] y - 12 = -3x + 18 [/tex]
Add 12 to both sides
[tex] y = -3x + 18 + 12 [/tex]
[tex] y = -3x + 30 [/tex]
✅The equation in slope-intercept form is [tex] y = -3x + 30 [/tex]
b. ✍️Based on the linear model, [tex] y = -3x + 30 [/tex], the 30 represents b = y-intercept.
✅Therefore, it took Peter 30 mins long initially to deliver his package.
✍️Based on the linear model, [tex] y = -3x + 30 [/tex], "-3" represents the slope.
✅Therefore, Peter's delivery time decreased 3 mins per day.
Solve
10/r > 1; r = 5
Answer:
10/5 = 2
so its 2>1
Step-by-step explanation: