Answer:
-3x² + 6x - 4Step-by-step explanation:
Simplify:
4x + 7 - 8x² + 2x + 5x² - 11 =x²(-8 + 5) + x(4 + 2) + (7 - 11) =-3x² + 6x - 4Answer:
[tex] \tt \huge \boxed{ \boxed{\color{silver} { - 3x}^{2} + 6x - 4}}[/tex]
Step-by-step explanation:
to understand thisyou need to know about:algebraalgebraic addition subtractionPEMDAStips and formulas:quadratic expression standard form:ax²+bx+corder of PEMDASparenthesesexponentmultiplication ordivisionadditionsubtractionleft to rightgiven:4x+7-8x²+2x+5x²-11to dosimplificationlet's do:[tex]step - 1 : define[/tex]
[tex] \sf 4x + 7 - {8x}^{2} + 2x + {5x}^{2} - 11[/tex]
[tex]step - 2 : simplify[/tex]
[tex] \tt \: rewrite : \\ \sf {8x}^{2} + {5x}^{2} + 4x + 2x + 7 - 11[/tex][tex] \tt \:combine \: like \: terms: \\ \sf { - 3x}^{2} + 6x + 7 - 11[/tex][tex] \tt \: substrak : \\ \sf { - 3x}^{2} + 6x - 4[/tex]therefore
we can see the expression is in standard form since a,b and c is -3,6 and -4
also let's justify it
substitute the value of a,b and c respectively
(-3)x²+(6)x+(-4)
-3x²+6x-4 (proven)
Carolyn is sewing a border around a rectangular quilt that is 80 inches long and 60 inches wide. How many inches is the border?
Answer:
280 inches
Step-by-step explanation:
Ohnny loves hats and has collected them for years. 1/4 of his hats are baseball hats and 5/8 of his hats are fishing hats. What fraction of his hat collection is baseball hats or fishing hats?
Answer:
the letters of the
Step-by-step explanation:
One angle of a triangle measures 94°. The other two angles are congruent.
Enter and solve an equation to find the measure x of the congruent angles.
An equation is ______ = 180.
The congruent angles each measure _____
°.
Answer:
43 is the answer
Step-by-step explanation:
i just added till i got it
I need to find the volume:)
Answer:
396π in^3
Step-by-step explanation:
The formula for calculating volume of a cylinder is πr2h (r : radius, h : height)
π×6^2×11 = 396π in^3
The histogram shows the number of cell phone calls received by Medera, a middle school student, on 10 a.m. to 10 p.m. Cell Phone Calls 12 10 Numberof calls 6 4 2 O 10 a.m. - 11:59 a.m. 12 p.m.- 1:59 p.m. 2 p.m. - 4 p.m. - 3:59 p.m. 5:59 p.m. Time of Day 6 p.m.- 7:59 p.m. 8p.m. - 9:59 p.m. Which statement most reasonably explains the hours when zero calls were received
Answer:
A. Medera turned the phone off while playing in the soccer game
Step-by-step explanation:
Answer:
A.
Step-by-step explanation:
Hope this helps :)
PLEASE HELP ME !!!!
Answer:
y = 17/2
Step-by-step explanation:
7y − 4 = 9y + 13 − 4y
Simplify both sides of the equation.
7y - 4 = 5y + 13
Subtract 5y from both sides.
2y - 4 = 13
Add 4 to both sides.
2y = 17
Divide both sides by 2.
y = 17/2
I hope this helps! Feel free to ask any questions!
The number of visitors to a certain Web site triples every month. The number of visitors is modeled by the expression 900 * 3^m, where m is the number of months after the number of visitors was measured. Evaluate the expression for m=-2. What does the value of the expression represent in the situation?
Answer:
[tex]900\times 3^m[/tex] = 100
Step-by-step explanation:
The number of visitors is modeled by the expression [tex]900\times 3^m[/tex]
Where m is the number of months after the number of visitors was measured.
We need to evaluate the above expression for m = -2.
So,
[tex]900\times 3^m=900\times 3^{-2}\\\\=900\times \dfrac{1}{3^2}\\\\=900\times \dfrac{1}{9}\\\\=100[/tex]
At m = -2, the value of the above expression is equal to 100.
Y'all I really need help
Answer:
15.75
Step-by-step explanation:
15 x 1.05
hope this helps you out
Please help.
Is algebra.
Please help it’s due today
Answer:
[tex]\sqrt{57}[/tex]
Step-by-step explanation:
Pythagorean Method
Find the distance between (3, -11) and (3, -3). *
Need Help Due Tomorrow
MUST SHOW WORK!!!
DONT BOTHER ANSWERING IF YOU CANT SHOW WORK
Answer:
B!
Step-by-step explanation:
we know that (x-5) and (y-6) must add up to 129 because 180-51 is 129
now let's plug in the values to see
51-5= 66 63-6 = 57
57+66 is 123, not this one, let's repeat the same step
77-5 is 72, 63-6 is 57, these added is 129
How do you solve the equation: 7x = 26
Divide by 7 on both sides
Divide by 26 on both sides
Multiply by 7 on both sides
Multiply by 26 on both sides
Answer:
Divide by 7 on both sides
Step-by-step explanation:
7x is a coefficient so you divide by 7
A = 27 + 0.3 C
The maximum amount of potassium chloride, AA, in grams (gg), which can be dissolved in 100g of water at CC degrees Celsius is given by the equation above. Which of the following is the best interpretation of 0.30 as shown in the equation above?
Group of answer choices
Approximately 0.3 grams of potassium chloride can dissolve in nearly frozen water.
The maximum amount of potassium chloride that can dissolve in water at all temperatures is 0.3 grams.
The amount of potassium chloride that can dissolve in water increases by 1 gram for an increase of 0.3 degrees Celsius in temperature.
The amount of potassium chloride that can dissolve in water increases by 0.3 grams for every 1 degree Celsius increase in temperature.
Answer:
Step-by-step explanation:
Divide 27 by 0.3 to get your answer
Answer:
27.30 because your basically adding 30 as in cents.
Step-by-step explanation:
What type of pattern do exponential functions have
Graphical
Step-by-step explanation:
They have graphical pattern
HELP DUE IN 5 MINS!
Finish the proof.
What is reason 1?
CPCTC
Reflexive Property
Vertical Angles Theorem
SAS Postulate
AAS Postulate
HL Theorem
ASA Postulate
SSS Postulate
Definition of Midpoint
Given
Definition of Perpendicular
Definition of Congruence
Answer:
The reasons:
1. Given2. Reflexive Property3. AAS Postulate4. CPCTCWrite the equation of the parabola in vertex form.
Vertex:(4,4)
Point :(2,-8)
Answer:
Step-by-step explanation:
y = a(x-4)^2 + 4
Plug in (2,-8) and solve for a:
-8 = a(2-4)^2 + 4
a = -3
y = -3(x-4)^2 + 4
A rectangle has a perimeter of 64.
Let x equal the width of the rectangle.
Let y equal the area of the rectangle.
Which equation can be used to find the area of the rectangle?
A. y = x² - 64x
B. y = -x² + 64x
C. y = x² - 32x
D. y = -x²+ 32x
Answer:
You can use option (D) to find the area of rectangle
(D) y = - x²+32x
Step-by-step explanation:
If you can substitute your values you can find your answer
THANK YOU....
PLZZ GIVE ME A BRAINLIEST TAG
The expression for the given rectangle with width x and area y is[tex]y = -x^{2} +32[/tex]
it is given that
area of the rectangle = y
width of the rectangle = x
so the length of the rectangle will be = area/width = [tex]\frac{y}{x}[/tex]
perimeter = 64
What is the perimeter of a rectangle?Perimeter is the sum of all four sides of the rectangle.
we can say that,
2(length + breadth) = 64
[tex]2( \frac{y}{x} + x)=64\\\\[/tex]
[tex]\frac{y}{x} + x= 32[/tex]
[tex]\frac{y + x^{2} }{x} = 32[/tex]
[tex]y+x^{2} = 32x[/tex]
[tex]y = -x^{2} +32[/tex]
therefore, the expression for the area of the rectangle,
[tex]y = -x^{2} +32[/tex]
to get more about rectangles refer to the link,
https://brainly.com/question/25292087
g = f에서 5 = g는 무엇입니까?
Answer:
임의의 변수로 풀기
g = 5
f = 5
Step-by-step explanation:
english: Solve in terms of the arbitrary variable
g=5
f=5
한국에서이 질문을 한 선생님은 누구입니까?
Help me with my math please!!!!
Look up "Everything You Need To Know About Math In One Big Fat Notebook pdf." It's the best thing I've ever been given, I have it with me in math class all the time and I've aced every test. I have it with me right now and it has everything I've ever been taught about math in it so it might help you.
39.54 divided by 3 please.
Answer: 13.18
Step-by-step explanation:
Answer: 13.18
Step-by-step explanation: But if rounded to the nearest tenth its 13.2
hope that helped
Is the following relation a function? {(1, 2), (4, -3), (4, 7), (8, -6)}
a. Yes
b. No
help plsss
Answer:
A function will not have any repeating x values...it can have repeating y values, just not the x ones. So all ur x's have to be different.
This relation is NOT a function because u have repeating x values...u have 2 x values that are 0.3
I need help with this equation -6х- 7 = 4x - 2
Answer:
X= -2
Step-by-step explanation:
Answer:
yes it is X= -2
Jackie's commute is 15 minutes longer than Laura's. If Laura drives 12 minutes for every 17 minutes Jackie drives what are both Jackie's and Laura's drives?
Answer:
Laura drives for [tex]36\ \text{minutes}[/tex] while Jackie drives for [tex]51\ \text{minutes}[/tex]
Step-by-step explanation:
Laura's commute is [tex]x\ \text{minutes}[/tex]
Jackie's commute is
[tex]x+15[/tex]
Laura drives 12 minutes for every 17 minutes Jackie drives so
For every minutes Laura drives Jackie drives [tex]\dfrac{17}{12}\ \text{minutes}[/tex]
So,
[tex]\dfrac{17}{12}=\dfrac{x+15}{x}\\\Rightarrow 17x=12x+180\\\Rightarrow 5x=180\\\Rightarrow x=\dfrac{180}{5}\\\Rightarrow x=36\ \text{minutes}[/tex]
Hence, Laura drives for [tex]36\ \text{minutes}[/tex] while Jackie drives for [tex]36+15=51\ \text{minutes}[/tex].
Find x . Giving Brainly!
Answer:
x should equal 1
Step-by-step explanation:
What is th square root of 45, trying to figure it out on my calculstor but I cant find the sqaure root sign
Trapezoid ABCD has vertices A(-5,9) B(-2,9) C(-8,0) D(1,0) after a translation of 2 units right and 3 units down followed by a dilation with a scale factor of 2/3. What are the vertices of trapezoid RSTU
Answer:
(-2,4), (0,4), (-4,-2) and (2,-2)
Step-by-step explanation:
Given
[tex]A = (-5,9)[/tex]
[tex]B = (-2,9)[/tex]
[tex]C = (-8,0)[/tex]
[tex]D = (1,0)[/tex]
[tex]Translation: 2\ units\ right\ \& \ 3\ units\ down[/tex]
[tex]Dilation: \frac{2}{3}[/tex]
Required
Determine the vertices of the image RSTU
When a coordinate (x,y) is translates b units right, the new coordinate is: (x + b, y)
So, translation 2 units right gives:
[tex]A = (-5,9)[/tex] ---> [tex]A' = (-5 + 2,9) = (-3,9)[/tex]
[tex]B = (-2,9)[/tex] ---> [tex]B' = (-2 + 2,9) = (0,9)[/tex]
[tex]C = (-8,0)[/tex] ---> [tex]C' = (-8 + 2,0) = (-6,0)[/tex]
[tex]D = (1,0)[/tex] --- > [tex]D' = (1 + 2,0) = (3,0)[/tex]
When a coordinate (x,y) is translates b units down, the new coordinate is: (x, y-b)
So, translation 3 units down gives:
[tex]A' = (-3,9)[/tex] ---> [tex]A" =(-3,9-3) =(-3,6)[/tex]
[tex]B' = (0,9)[/tex] --> [tex]B" =(0,9-3) =(0,6)[/tex]
[tex]C' = (-6,0)[/tex] --> [tex]C" =(-6,0-3) = (-6,-3)[/tex]
[tex]D' = (3,0)[/tex]--> [tex]D"=(3,0-3) = (3,-3)[/tex]
Lastly, dilation of 2/3 gives:
[tex]New = Old * \frac{2}{3}[/tex]
[tex]R = (-3,6) * \frac{2}{3} = (-2,4)[/tex]
[tex]S = (0,6) * \frac{2}{3} = (0,4)[/tex]
[tex]T = (-6,-3) * \frac{2}{3} = (-4,-2)[/tex]
[tex]U = (3,-3) * \frac{2}{3} = (2,-2)[/tex]
Hence, the coordinates of RSTU are: (-2,4), (0,4), (-4,-2) and (2,-2)
Find the total surface area of the net below.
Answer:
122
Step-by-step explanation:
The total surface area is 122. This is because 7 times 4 equals 28. Then you do 7 times 5 twice, which makes 35 times 2, which makes 70. This is because there are 2 triangles with 7 as the base and 5 as the height. Next, you do 4 times 3 twice, which equals 12 + 12 which adds up to 24. Now add the numbers up. 70 + 28 + 24, which = 122.
It's been about a few years since I did area and circumference, if this is the wrong answer I apologize!
If 3 centimeters is equal to 30 millimeters, how many centimeters are in 140 millimeters?
Answer:
14
Step-by-step explanation:
divide by 10
Answer:
14
Step-by-step explanation:
You have the proportion:
3 cm: 30 millimeters
divide both sides by 3
1 cm: 10 millimeters
Then, multiply both sides by 14
14cm: 140 millimeters
So 14 centimeters are in 140 millimeters
Find the value of the variable. If your answer is not an integer, leave it in simplest radical form.
Answer:
[tex]\frac{13}{\sqrt{2}}[/tex] or 9.19 (approximately). I am confused how the question is asking for it to be typed, so it might be this: [tex]\frac{13}{\sqrt{2}}[/tex] , but if you cannot type that in, then maybe it is sin(45) * 13.
Step-by-step explanation:
The three main trigonometric ratios are: sine (o/a), cosine (a/h), or tangent (o/a) depending on the given. To help you remember them, you can use the saying SOH CAH TOA, which is sin = opposite/hypotenuse, cosine = adjacent/hypotenuse, and tangent = opposite/adjacent.
In this problem, we are going to use one that has the hypotenuse, which rules out tangent, and leaves us with sine or cosine. Since, we are given the hypotenuse and the opposite side (from angle 45), we will be using sine. Then we just need to set up the trigonometric ratio:
sin (45) = x/13
Then, you need to get x by itself, so you multiply 13 on each side, which leaves you with:
x = sin(45) * 13 = 9.19 (approximately)
This could also be seen as a special right triangle, where the hypotenuse is [tex]x\sqrt{2}[/tex], and the two sides are x.
So, to find the value of x, you could also do this: 13/[tex]\sqrt{2}[/tex], which might be how the question wants it formatted.
Good luck!