This won't be the easiest way to do this problem but as your teacher requires it I will do it that way. But at the end I will show another way to do it with the quadratic formula.
First complete the square
x^2-3x+1=0
(x^2-3x+9/4)+1=9/4
(x-3/2)^2=9/4-1
(x-3/2)^2=5/4
x-3/2=±[tex]\sqrt{\frac{5}{4}[/tex]
x= 3/2±[tex]\frac{\sqrt5}{2}[/tex]
Done!
*Now this next way is not the way your teacher wants you to do it but I personally think its easier.
Just use the quadratic formula x=[-b±sqrt(b^2-4ac)]/2
x=[3±sqrt(9-4*1*1)]/2
x=(3±sqrt5)/2
x=3/2±sqrt5/2
We get the same answer but I think this way is easier. Now if your teacher ask for the top way just do the top way don't do the bottom because you will lose points, its just a shorter way to do things. Now I hope this helped and any additional questions about this just ask me in the comments.
How many minutes does April jump rope in 1 day? 1 week?
Answer:
2 1/3 hours
Step-by-step explanation:
7/1 × 1/3 = 7/3 = 2 1/3 so the answer would be 7/3 or 2 1/3
Mila and Ava play a number game. Mila gives Ava a number and she does three computations:
She subtracts 5 from that answer.
She multiplies the number by 2.
Then, she adds 8 to the answer.
What number should Mila give Ava so that the final answer is 92?
Answer:
Step-by-step explanation:
(x-5)2+8 = 92
2x-10+8 = 92
2x = 94
x = 47
Answer:
Step-by-step explanation:
2(n-5)+8=92
2n-10+8=92
2n-2=92
2n=94
n=47
Solve the equation
v-5/6=-7/8
Simplify each exponential expression using the properties of exponents and match it to the correct answer.
Answer:
Answers - 2, 1, 1/2 1. (2x3^-2)(5x3^2)^2 (3^-2)(5x2)^2 2. (3^3)(4^0)^2(3x2)^-3(2^2) 3. (3^7x4^7)(2x5)^-3(5^2) 12^2x5^-1x2^-4 4. (2x3)^-1x2^0 (2x3)-1
Step-by-step explanation:
wikipideia
What is the area of the triangle given below?
A. 32 sq. units
B. 17 sq. units
C. 52 sq. units
D. 26 sq. units
Solve for n:
3n + 2n - 17 = 38
if 8 equals 40 grams how much is 64 grams
Answer:
320 grams
Step-by-step explanation:
First you find out how much 1 bat ate
40 divided by 8 = 5
So each bat ate 5 insects
Multiply 5 by the 64 bats
64 * 5 = 320
I think it’s A but I need help double checking!
1. f(x) = x^3– 4x^2 – 7x + 10
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Answer:
zeros: {-2, 1, 5}
Step-by-step explanation:
A graphing calculator works nicely for identifying turning points, roots, increasing/decreasing intervals, and more.
Mark buys 3 2/5 pounds of apples. He uses 2/3 of the apples in a recipe. Which of the following expressions can be used to find the number of pounds of apples that Mark uses? A: 2/3 + 2/3 + 2/3 + 2/5 B: 2/3 x 17 3 x 5 C: 2/3 x 6/5 D: 2/3 x 3 + 2/3 x 2/5
Answer:
b
Step-by-step explanation:
jayfeather friend me
The length of a rectangular frame is 4 inches longer than twice the width. If the perimeter is 38 inches, find the dimensions of the frame.
WILL GIVE WHOEVER ANSWERS BRAINIEST
Answer:
The width of the rectangle is 20 inches, and the length is 36 inches.
Step-by-step explanation:
2(2x-4) + 2x = 112
4x - 8 + 2x = 112
6x - 8 = 112
6x = 120
x = 20
I hope this helps️️
Convert 6 over 15 to a decimal.
0.2
0.3
0.4
Answer:
0.4
Step-by-step explanation:
just do 6 divided by 15
Answer: 0.4 :)
Step-by-step explanation:
1. 8.3 is equal to _____ tenths ______ hundredths
2. 28 is equal to ______ hundredths _______tenths.
Answer:
8.3 is equal to eight tenths 3 hundredths
28 is equal to 28 tenths.
0.345 times 83.8 I forgot how to do it .w.
Answer:
28.911
Step-by-step explanation:
you just have to open up a calculator lol
1.5(a + 2) + 1.5a = 11.7
Answer:
2.9
Step-by-step explanation:
which shows the product of 23 and 39
Answer:
23 * 29
Step-by-step explanation:
pls give thanks, 5 star, brainliest
What is the answer ?
In the slope - 6/11, the 11 indicates to
A. Rise 11 units
B. Fall 11 units
C. Run 11 units
Answer:
C. run 11 units
Step-by-step explanation:
because you run down -6 you rise 11
Here are eight angles. Which of these angles are obtuse angles?
Enter your answer as a list of letters, separated by commas. For example, if you believe angles A, B, and F are obtuse, type A, B, F.
Help me please. Please, Please!!!
The obtuse angles from the given list are D (between 90° to 180°) and E (111° angle). Thus, the answer is D, E.
The angles are given as follows:
A: less than 45°
B: greater than 270°
C: right angle
D: between 90° to 180°
E: A 111° angle
F: A 222° angle
G: A 0.180° angle
H: A 180.180° angle
To identify which angles are obtuse, we need to determine the angles that are greater than 90 degrees but less than 180 degrees.
Among the given angles:
A: less than 45° (not obtuse)
B: greater than 270° (not obtuse)
C: right angle (not obtuse)
D: between 90° to 180° (obtuse)
E: 111° angle (obtuse)
F: 222° angle (not obtuse)
G: 0.180° angle (not obtuse)
H: 180.180° angle (not obtuse)
Therefore, the obtuse angles from the given list are:
D (between 90° to 180°)
E (111° angle)
The answer is D, E.
Learn more about the obtuse angles here:
https://brainly.com/question/30813354
#SPJ4
John makes a commission of 6% when he sells a house how much is john's commission if he is sells a house for $300,000
Answer:
18,000
Step-by-step explanation:
6% is 0.06
300,000 * 0.06 = 18,000
Answer:
John's commision is $18,000
Step-by-step explanation:
This is is essentially asking what 6% of $300,000 is.
6% in decimal form equals 0.06
You then multiple the decimal to the orginal value.
(0.06)(300,000) = 18,000
John's commision is $18,000
in which equation is y a nonlinear function of x ? will Mark brainiest is for the correct answer please help me
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Answer:
(B)
Step-by-step explanation:
The power of x is 1 everywhere except equation (B), where it is 1/2.
Equation B is a nonlinear function of x.
Answer:
Step-by-step explanation: D
You purchase a new mountain bike for $1,575. You put a 10% down payment and $65.56 per month on a 24 month purchase plan. Determine the total finance charge.
Answer:
c believe me
Step-by-step explanation:
how do you solve y+1=2x
y =2x-1
Step-by-step explanation:
Describe and correct the error in solving the equation. Help so I can pass math
Answer:
you subtract seven not add it.
Step-by-step explanation:
jus trust
Answer:
Step-by-step explanation:
Should subtract 7 not add.
x + 7 = 13
-7 -7
x = 6.
12x13=? please help I only know up too 12 not. 13 helppppp
Answer:
156
Step-by-step explanation:
hopefully this is the answer you're looking for
Answer:
156
Step-by-step explanation:
the answer of the product of 12 and 13 is 156
turn 12/5 into a mixed fraction
Answer:
2 2/5
Step-by-step explanation:
I hope this helps
Set up the division problem in long division format.
5/12
just divide this you should get your answer.
The volume of a cube is 216 ft^3. What is the length of a side?
Answer:
54
Step-by-step explanation:
cause a cub has 4 sides so each side is 54
Answer:
The length of a side is 6.
Step-by-step explanation:
Since, the volume of a cube is equal to l*w*h.
V=l*w*h
Volume is equal to side cubed.
V=s^3
Cube 216 to get 6.
216=s^3
3^√216=s
Answer: 6
For a two-day rental at the surf shop, it cost $55 to rent a surf board and $70 to rent a paddle board. On a certain weekend, the surf shop rented 51 total surf boards and paddle boards and made $3300. How many paddle boards were rented?
Answer:
7 paddleboards
Step-by-step explanation:
In order to solve this, you have to find the total amount that they earned by renting surfboards.
To find this you multiply 55 x 51 =2,805.
Then you use this factor and subtract it from the total amount they earned.
$3,300 - $2,805 = $495.
This shows us that they earned a total of $495 from renting out paddle boards. To find out how many paddle boards were rented out you have to divide $495 by $70 which is how much they charge to rent paddle boards.
495/70 = 7
In conclusion, they rented out 7 paddle boards.
Pls help this is really important
Answer:
x = 30 I'm sure hope this helps
Find the value of x.
AS
7
х
D
3
B
'c
X=
V[?]
Enter
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Answer:
x = √70
Step-by-step explanation:
The triangles shown are all similar, so corresponding sides are proportional.
hypotenuse/long side = x/7 = (7+3)/x
Cross-multiplying gives ...
x^2 = 7(10)
x = √70
_____
You will note that the value of x (the long side) is the geometric mean of the long segment and the whole hypotenuse.
A similar "geometric mean" relation holds for the short side:
BC = √(CD·CA)
There is yet another "geometric mean" relation that holds for the altitude:
BD = √(CD·AD)
You may see these again.