Answers
Answer:
x=3+√2 or x=3−√2
Step-by-step explanation:
For this equation: a=1, b=-6, c=7
1x2+−6x+7=0
Step 1: Use quadratic formula with a=1, b=-6, c=7.
x=
−b±√b2−4ac
2a
x=
−(−6)±√(−6)2−4(1)(7)
2(1)
x=
6±√8
2
x=3+√2 or x=3−√2
Related Questions
the diameter of a bail ball is 6cm. what is the volume? round to the nearest whole number
Answers
Answer:
lnkbprtngbp knmbmt[onbmorbmntionbtlrmbvlnrpoigmboigmnb
Step-by-step explanation:
Find the value of x: x/6 = 16/48
PLEASE HELP
Answers
Answer:
x = 2
Step-by-step explanation:
multiply (16/48) by 6 to get rid of the fraction and then you get x = 2
PLEASE HELP ME IV'E BEEN TRYING TO GET HELP BUT NOBODY WILL HELP ME PLEASE HELP "A phone sells for $137.99. It is now on sale for 1/10 off the original price. Tom has a coupon for an extra 5% off the sale price. To the nearest dollar, how much less that the original price will Tom pay for the phone."
Answers
Answer:
$122.99
Step by Step explanation
HELP PLEASE, I CANT FAIL THIS.
Answers
Answer:
1. complementary angles
2. vertical angles
i am not sure about question 3. 4. 5
3.
4.
5- (not sure)
6. c
Step-by-step explanation:
Which expression is equivalent to 5x + 9?
A. 5(x-4)+9
B. 5(x+4)+29
C. 5(x-4) +9
D. 5x+(x+9)
Answers
Answer:
i belive it would be D
Step-by-step explanation:
On a coordinate plane, 2 straight lines are shown. The first solid line has a positive slope and goes through (0, 3) and (3, 4). Everything above the line is shaded. The second dashed line has a positive slope and goes through (0, negative 2) and (1, 1). Everything to the right of the line is shaded.
Which system of linear inequalities is represented by the graph?
Answers
Answer:
A. y≥[tex]\frac{1}{3\\}[/tex]x+3, 3x-y>2
Step-by-step explanation:
The linear equations above match the lines in terms of slope and y-intercept.
I hope you found this helpful! If you did, I'd really appreciate if you'd mark my work as 'brainliest'. Please don't hesitate to ask any questions!
Have a great day!
The system of linear inequalities of the given points is required.
The system of inequality is
[tex]x-3y\leq -9[/tex]
[tex]3x-y>2[/tex]
Points of the first line
[tex](0,3)[/tex]
[tex](3,4)[/tex]
The equation of the line is
[tex]y-3=\dfrac{4-3}{3-0}(x-0)\\\Rightarrow y-3=\dfrac{1}{3}x\\\Rightarrow y-\dfrac{1}{3}x=3\\\Rightarrow 3y-x=9\\\Rightarrow x-3y=-9[/tex]
Let us take a point above this line [tex](2,4)[/tex]
It is also a solid line.
[tex]2-3\times 4=-10<-9[/tex]
So, the inequality is [tex]x-3y\leq -9[/tex]
Points of the second line
[tex](0,-2)[/tex]
[tex](1,1)[/tex]
The equation of the second line is
[tex]y+2=\dfrac{1+2}{1-0}(x-0)\\\Rightarrow y+2=3x\\\Rightarrow 3x-y=2[/tex]
Let us take a point towards the right of the line [tex](2,2)[/tex]
[tex]3\times 2-2=4>2[/tex]
Since, the line is dashed the second inequality will be [tex]3x-y>2[/tex]
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Anya says, "62,996 rounds to 63,000"
Select all the places to which she could
have rounded the number.
Answers:
ones
tens
hundreds
thousands
ten thousands
Answers
Answer:
hundreds
Step-by-step explanation:
hundreds because in the hundreds place in the number 62996 there's number 9, which it's greater than 4, so it will add 1 to the thousands and all the numbers in the right will be zero
Marianna draws a rectangle with a width of 2/5 inch and a length of 3/5 inch. What is the area of the rectangle
Answers
Answer:
[tex]A = \frac{6}{25} in^{2}[/tex]
Step-by-step explanation:
area = length • width
[tex]A = \frac{2}{5} *\frac{3}{5}\\A = \frac{6}{25} in^{2}[/tex]
Answer:
6/25
Step-by-step explanation:
i dont feel like explaning what a draaaaaggggg
all rational numbers are integers trure or false
Answers
The rational numbers include all the integers, plus all fractions, or terminating decimals and repeating decimals. ... All natural numbers, whole numbers, and integers are rationals, but not all rational numbers are natural numbers, whole numbers, or integers.
All rational numbers are not integers. Rational numbers are of the form p/q, where p and q are integers with non-zero q.
Write a linear function for the data in each table using function notation.
Answers
Answer:
A. f(x) = 6.5xB. f(x) = 3x - 2Step-by-step explanation:
Table AThis is proportional relationship
The function is:
f(x) = 6.5xTable BThe slope is:
(10 - 7)/(4 - 3) = 3The y-intercept is:
10 - 4*3 = -2The function is:
f(x) = 3x - 2Answer:
A. f(x) = 6.5x
B. f(x) = 3x - 2
Step-by-step explanation:
Let f be the function defined by f(x)=x^3+x^2+x. Let g(x)=f^-1(x), where g(3)=1. What is the value of g'(3)?
Answers
Answer:
1/6
Step-by-step explanation:
Given the function
f(x)=x^3+x^2+x
Get the inverse. Let y = f(x)
y = x^3+x^2+x
Replace y with x
x = y³+y²+y
Differentiate with respect to x
1 =3y²dy/dx + 2ydy/dx + dy/dx
1 = (3y²+2y+1)dy/dx
dy/dx = 1/3y²+2y+1
g'(x) = 1/3(g(x))²+2g(x)+1
If x = 3
g'(3) = 1/3(g(3))²+2g(3)+1
g'(3) =1/3(1)²+2(1)+1
g'(3) = 1/3+2+1
g'(3) = 1/6
Hence g'(3) = 1/6
A shirt has a retail price of $25.00. If the tax rate is 8%, what will the tax amount be?
Answers
Answer:
2
Step-by-step explanation:
25 x 0.08 = 2
please help me asap?!? test is past due :(
Find the missing side lengths using your notes on the 45-45-90 and 30-60-90 special triangles.
Answers
It says that there was an error with my answer, but I don't know what, so I screenshotted what I typed and attached them as 4 images below:
Terri weighed 95 lbs last month. This month she weighed 105 lbs.
What is the percent of increase?
Answers
Answer:
10 Ib. difference so maybe 0.99
Step-by-step explanation:
The sum of 7 and Rita's score is 54
Answers
Answer:
the answer to your question is 61
Step-by-step explanation:
54+7=61
Answer:
47
Step-by-step explanation:
54-7=47
I'm assuming we are trying to find Rita's score. We know that the total is 54. "The sum" refers to addition, so we must reverse the problem to find her score
54- 7= 47
Total - 7 = her score
What is the measure of angle N?
Answers
=========================================================
Work Shown:
Apply the law of sines
sin(N)/MO = sin(O)/MN
sin(N)/18 = sin(17)/6
sin(N) = 18*sin(17)/6
sin(N) = 0.87711511416821 ................. which is approximate
N = arcsin(0.87711511416821)
N = 61.296295678111
N = 61 degrees approximately
----------------------
Notes:
Arcsine is the same as inverse sine. Your calculator is likely to have a button labeled [tex]\sin^{-1}[/tex] to indicate inverse sine.There are two solutions to sin(N) = 0.877; however, the other solution for N is larger than 90. This triangle your teacher is showing appears to be an acute triangle where every angle is less than 90 degrees. Technically two triangles are possible with these current given sides and angle.8. Bir sınıftaki öğrenciler sıralara ikişerli oturduğunda 3 öğrenci
ayakta kalmaktadır. Üçerli oturduklarında ise 1 sira boş kal-
maktadır.
Buna göre sıra sayısını veren denklem hangi seçenekte
doğru olarak verilmiştir?
B) 2x + 3 = 3x - 1
A) 3x + 1 = 2x + 3
C) 2x - 3 = 3(x + 1)
D) 2x + 3 = 3(x - 1)
Answers
Answer:
cvp B çünkü o iki kavram birbiriyle eşit
If an object falls 40 meters in 4 seconds,how far will it fall in6 seconds
Answers
Answer:
60 seconds
Step-by-step explanation:
step 1.) find how many meters it falls per second
40m / 4sec = 10m/s
step 2.) use the equation above to find in terms of the question
10m/s for 6sec = 10 x 6 ====> 60 seconds
Jalen charges $25.50 for every 3 hours of yard work he does for his neighbors. Ralph charges $34 for every 4 hours of work that he does. Who charges less?
They charge the same amount.
Ralph
Jalen
Answers
34/4= 8.50
They charge the same. $8.50 an hour
Answer:
They charge the same
Step-by-step explanation:
i hope this helps
HELP WITH QUESTION 14 AND 15 IF I GET THEM RIG U WILL GIVE BRAINLIEST
Answers
Answer:
333 meters per second
Step-by-step explanation:
Answer:
14) 333 meters per second
15) True
Step-by-step explanation: hope this help :)
which of the following statements is false about the area of a circle
Answers
Answer:
Step-by-step explanation:
All are true except for the second. Only the second is false.
(pi)(d) is the circumference (not the area) of a circle.
The incorrect statement is [tex]A = \pi d[/tex].
The correct option is 2.
What is Surface Area?The area is the area occupied by a two-dimensional flat surface. It has a square unit of measurement. The surface area of a three-dimensional object is the space taken up by its outer surface. Square units are used to measure it as well. The region that includes the base(s) and the curved portion is referred to as the total surface area. It is the overall area that the object's surface occupies. The total area of a form with a curved base and surface is equal to the sum of the two areas.
As per the given data:
We have to find out the incorrect statements out of the given options about the area of a circle.
[tex]A = \pi r^2[/tex]
This statement is correct, as the area of a circle is pi times square of the radius.
[tex]A = \pi d[/tex]
This statement is incorrect, as the area of a circle is given by:
[tex]A = \pi r^2 =\frac{ \pi d^2}{4}[/tex]
The area of a circle determines how much space is covered by the circle.
This statement is correct.
The area of a circle describes the number of square units that fit inside the circle.
This statement is correct.
Hence, the incorrect statement is [tex]A = \pi d[/tex].
To learn more about surface area, click:
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The least common multiple of 20 and 12 is
Answers
Answer:
60
Step-by-step explanation:
What is the measure of _Y, in degrees?
y
A. 116°
B. 32°
C. 640
D. Cannot be determined
Answers
Answer:
C. 116º
Step-by-step explanation:
Both sides are congruent, so the triangle is an isosceles triangle. So angle Z will have to be congruent to angle X. Add together the two angles, (32 + 32) and subtract the sum from 180º since all triangles add up to 180º.
32 + 32 = 64
180 - 64 = 116
Drag the symbol to complete the solution to this inequalities
Answers
Answer:
x ≤ 13.2.
Step-by-step explanation:
6 ≥ x/2.2
Multiply both sides by 2.2:
6 * 2.2 ≥ x
x ≤ 13.2.
The solution to the inequality is [tex]x \leq 13.2[/tex], the correct symbol used in blank is ≤.
To complete the solution to the inequality [tex]6 \geq \frac{x}{2.2}.[/tex]
Rearrange the inequality as follows:
[tex]\frac{x}{2.2} \le 6[/tex]
The solution to the inequality is:
[tex]x \leq 13.2[/tex]
Comparing the expression [tex]\frac{x}{2.2}[/tex] to 6, we can see that [tex]\frac{x}{2.2}[/tex] should be less than or equal to 6 in order for the inequality to hold true.
Therefore, the correct symbol to place in the blank is "≤" and solution is [tex]x \leq 13.2[/tex].
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HELP
Which equation represents a line parallel to y = 3x - 4?
1) y=-3x + 4
2) 6x-2y = 12
3) x + 3y = 9
4) y = 1/3x - 2
Answers
Please help i really need help on a b and c
Answers
It will take 72 cars for the class fund to be $385. Work shown is in the picture attached.
PLEASE HELP ME I BEG OF YOU IF YOU HELP ME I WILL GIVE YOU BRAINTLIEST JUST PLEASE HELP ME "Julie goes to the sports store and spends $40.50 before tax. She buys a pair of shorts for $21.75 and 3 pairs of socks that each cost same amount. How Much does each pair of socks cost?" Please help me
Answers
Answer:
$6.25
Step-by-step explanation:
this is iready please helpppppppp.cries
Answers
Answer:
umm okay
Step-by-step explanation:
Answer:
There is nothing
Step-by-step explanation:
Solve for perimeter. (photo included)
Answers
Answer:
24
Step-by-step explanation:
5+7+5+7=24
Answer:
24 m
Step-by-step explanation:
Add the complete outside of the shape. One side measure is 5 m. The other measure is 7 m. Add 5 + 7 to get 12 m. This is your answer for half of the shape. Double it to find the other completely symmetrical half. To double it, use the equation 12 x 2 = 24.
Hope it helps and is correct!
An exponent fiction has a base of 3/4 and a y- intercept of -5. Write an equation of the exponential function.
