Answers
Answer:
The value of x is -2 and 2.
Step-by-step explanation:
When solve an expression, you have to make the expression equals to 0 by moving all the terms to one side :
x² - 3x - 1 = -3x + 3
x² - 3x - 1 + 3x - 3 = 0
x² - 4 = 0
Next, you have to factorize and solve it :
x² - 4 = 0
x² + 2x - 2x - 4 = 0
x(x + 2) - 2(x + 2) = 0
(x + 2)(x - 2) = 0
x + 2 = 0
x = -2
x - 2 = 0
x = 2
Related Questions
Find the slope and y-intercept of the line.
y= 1/5x - 8
Answers
Answer:
The slope of this line is 1/5 and the y-intercept is -8
Step-by-step explanation:
Hope this helps!
Answer:
slope: 1/5 y-intercept: -8
Step-by-step explanation:
This is slope-intercept form, meaning that the formula is y=mx+b, with m being the slope and b being the y-intercept.
What gives the value of this expression -20/-4+(-15) (-2)
Answers
Answer:
[tex]\frac{-20}{-4+(-15)(-2)} = \frac{-10}{13}[/tex]
Step-by-step explanation:
Given expression
= [tex]\frac{-20}{-4+(-15)(-2)}[/tex]
= [tex]\frac{-20}{-4+30}[/tex]
= [tex]\frac{-20}{26}[/tex]
= [tex]\frac{-10}{13}[/tex]
[tex]\frac{-20}{-4+(-15)(-2)} = \frac{-10}{13}[/tex]
You borrow $500. The simple intrest rate is 3%. You pay off the loan after 4 years. How much do you pay for the loan
Answers
Given:
Principal value of loan = $500
Rate of simple interest = 3%
Time = 4 year
To find:
The total amount pay for the loan.
Solution:
Formula for simple interest is
[tex]S.I.=\dfrac{P\times r\times t}{100}[/tex]
where, P is principal, r is rate of interest in percent and t is time in years.
[tex]S.I.=\dfrac{500\times 3\times 4}{100}[/tex]
[tex]S.I.=\dfrac{6000}{100}[/tex]
[tex]S.I.=60[/tex]
So, the simple interest is $60.
Now,
[tex]Amount=Principal+S.I.[/tex]
[tex]Amount=500+60[/tex]
[tex]Amount=560[/tex]
Therefore, the total amount pay for the loan is $560.
Blue Sky Jeans Company manufactures jeans.
A machine cuts the fabric pieces and workers sew
them.
One worker can sew the fabric pieces for a 1/2
pair of jeans in 1/8
hours?
How long does it take a worker to sew one pair of
jeans?
Answers
Answer: 1/4
Step-by-step explanation:
which is larger 3/4 or 0.73
Answers
Answer:
3/4
Step-by-step explanation:
3/4 as a decimal is .75
.75>.73
Answer:
3/4 is larger
Step-by-step explanation:
3/4=0.75
0.75 is 0.02 larger than 0.73.
Hope this helps! :)
Francesca must buy over $55 worth of art supplies to qualify for free shipping
Answers
Answer
the question isn't complete
Step-by-step explanation
cool
⚠️ANSWER NEEDED FASTT⚠️
Which equation represents the relationship between a and d?
Answers
Answer:
a
Step-by-step explanation:
12.48/25=.52
14.56/28=.52
17.68/34=.52
PLEASEE HELP ILL MARK BRAINLIEST
Answers
Answer:
Area = 95.4 cm²
Step-by-step explanation:
Given
θ = 135°
r = 9cm
Required
Calculate the area of the sector
Area of a sector is:
Area = θ/360 * πr²
Substitute values for θ and r
Area = 135/360 * π * 9²
Area = 0.375 * π * 81
Take π as 3.14
Area = 0.375 * 3.14 * 81
Are = 95.3775
Area = 95.4cm² ---- approximated
Define least common multiple
Answers
Answer:
another term for lowest common multiple
Step-by-step explanation:
btw I got this from the web hoped I helped:)
Answer:
its similar to least common factor; a number or constant that is the lowest a number can be multiplied to get itself.
Step-by-step explanation:
please mark brainliest, give a thanks, and rate a five stars if this helped! feel free to ask anymore questions if you need any more help! thanks!
(lol optional): add my sc: tealyn337
A pole that is 3.4 m tall casts a shadow that is 1.37 m long. At the same time, a nearby tower casts a shadow that is 35.75 mlong. How tall is the tower? Round
your answer to the nearest meter.
Answers
Answer:
89 meters tall
Step-by-step explanation:
Create and use the ratio between the shadow and the object given in the problem. If a pole is 3.4 m tall and it's shadow is 1.37 m long. The ratio between the shadow and the object is 340 : 137 in terms of [length of the shadow : length of the object].
Denominator = bottom number of a fraction.
Numerator = top number of a fraction.
To get from one to the other, just convert the ratio into a fraction where the numerator corresponds to what you are converting to. This is because the length of the shadow × length of the object / length of the shadow = length of the object. The denominator cancels.
Just as the length of the object × length of the shadow / length of the object = length of the shadow.
So since 35.75 represents the length of the shadow, you multiply this by 340 / 137 which is 88.7226277372... ≈ 89 meters which is the length of the actual object (to the nearest meter, or whole meter).
Marco can hit the archery target 3 out of every 15 times he shoots. If he missed 48 times, how many times will he be expected to hit the target?
Answers
Answer: 12
15-3=12 miss ratio
48misses/12 sets of misses= 4 sets of 15 shots
Up to twelve 4*3 twelves accurate shots provided he shot at least 60
Step-by-step explanation:
help?? pleaseeeee cant fudge it out lol
Answers
Answer:
cant see the photo
Step-by-step explanation:
can you tell me what it says-
c. If the mixing container only holds 40 ounces
of paint, then what is the most green paint the
artist can make, and what recipe should she use?
ON
Answers
Answer:
she can make 40 ounces of green paint
Step-by-step explanation:
20 ounces of yellow paint and 20 ounces of blue paint
Which angles form a linear pair? Helppp
Answers
Given:
Pairs of angles in options.
To find:
The angles that form a linear pair.
Solution:
Linear pair: Two angles are called linear pair if they are lie on the same side of a straight line and their sum is 180 degrees.
In the given figure, we have two straight lines MO and NP.
Linear pairs for line MO are
[tex]\angle MRN[/tex] and [tex]\angle NRO[/tex]
[tex]\angle MRP[/tex] and [tex]\angle ORP[/tex]
[tex]\angle LRM[/tex] and [tex]\angle LRO[/tex]
Linear pairs for line NP are
[tex]\angle ORP[/tex] and [tex]\angle NRO[/tex]
[tex]\angle MRP[/tex] and [tex]\angle MRN[/tex]
[tex]\angle PRL[/tex] and [tex]\angle LRN[/tex]
So, pairs of angles in options A, B and D are not linear because they are not lie on the same side of a straight line.
Therefore, the correct option is C.
Find the unit rate. 210 miles in 7 hours
That means you need to find out how many miles are traveled in 1 hour.
Your answer should be written like this: ____ miles in 1 hour OR ____miles per hour OR ____ mph and you need to fill in the blank with your answer!
Answers
Answer:
the answer will be 30 mikes per hour
Step-by-step explanation:
Which of the following percents is equivalent to 31/50
Answers
Answer:
62/100
Step-by-step explanation:
heyyyy someone help me with this
Answers
Answer:
1. 1 hour per day
2. sorry i don't know the answer
Step-by-step explanation:
7hours 30minutes - 1hour 30minutes = 6hours
6 divided by 6 = 1hour
LOTSSS OF POINTSS PLSSS EXPLAIN !!!!
Answers
Answer:
B
Step-by-step explanation:
I am an Alabama football fan, so I know football.
Okay. so the equation shown is 10=8-9+5+x
8-9 equals -1
-1+5=4
10-4=6
Answer:
b
Step-by-step explanation:
10=8-9+5+x
8-9 equals -1
-1+5=4
10-4=6
THANKS! Everyone if you answer this
Answers
Answer:
Down Below .
Step-by-step explanation:
A. Nickel and Copper.
B. The average temp is 1034.8575. I got that by adding all the temps then dividing it by 4
I need help with this ASAP! (Click on the image I uploaded)
Answers
Answer:
d = 24.63
Step-by-step explanation:
82.53 - (21.7 + 17.3 + 18.9) =
24.63
15% of what number is 12?
Answers
Answer:
1.8 my brotha
Step-by-step explanation:
por que si es tru
Determine the value of y, if x is 12.
y = x2 – 11
Answers
Answer:
y=13
Step-by-step explanation:
y=12 × 2 -11
y= 24 - 11
y= 13
Answer:
13
Step-by-step explanation:
You probably need this answer fast so....
Substitute x with 12
do 12 - 11
its 13
Find the slope of the given line, if it is defined.
The line through the origin and (-9,12)
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
O A. The slope equals
(Simplify your answer.)
B. The slope is undefined.
Answers
Answer: A. The slope is [tex]-\dfrac{4}{3}[/tex].
Step-by-step explanation:
The slope of a line helps to specify the direction of the line.
The slope of a line that passes through (a,b) and (c,d) is given by :-
[tex]\text{Slope}=\dfrac{d-b}{c-a}[/tex]
Then the slope of a line passes through origin i.e. (0,0) and (-9,12) is given by :-
[tex]\text{Slope}=\dfrac{12-0}{-9-0}\\\\\Rightarrow\ \text{Slope}=\dfrac{12}{-9}\\\\\Rightarrow\ \text{Slope}=-\dfrac{4}{3}[/tex]
Hence, the slope is [tex]-\dfrac{4}{3}[/tex].
Give the least common
multiple:
3a, 15
Answers
Answer:
3
Step-by-step explanation:
3 goes into 3a once and 15 5 times
PLZ HELPPP
6.7 multiplied by 8
Answers
Answer:
53.6
Step-by-step explanation:
Answer:
53.6 is the answer :D
Step-by-step explanation:
so confused -_- please help :)))
Answers
Answer:
The speed of the periodic wave is 3 meters per second.
Step-by-step explanation:
Given that:
Wavelength of the periodic wave = 1 m
Frequency of the periodic wave = 3 Hz
We have to find the speed of the wave.
Speed of wave = Wavelength * Frequency of wave
Speed = fλ
Speed = 1*3
Speed = 3 m/s
Hence,
The speed of the periodic wave is 3 meters per second.
Answer:
i can help
Step-by-step explanation:
What is the difference of 54.567 and 361.02
Answers
Answer:
-306.453
Step-by-step explanation:
306.453
(i just used a calculator hsfgkhd)
Simplify the expression. 6(x+4)+I
Answers
Answer:
6x + 25
Step-by-step explanation
Distribute 6 through the parenthesis
Then add 24 and 1 to get 25
then you end up with 6x + 25
Answer:
6x+25
Step-by-step explanation:
6x+24+1 first distribute 6 into (x+4)
then add all your constants 24+1
then u get 6x+25,ur answer
5 A contractor is laying out the sides of a
rectangular porch. She knows that the porch will
form a rectangle if it can be broken up into two
right triangles, as shown below.
The lengths of the two longer sides of the porch
are 24 feet and the lengths of the two shorter
sides are 17 feet. Enter the length of the diagonal
of the porch in feet, rounded to the nearest tenth.
Answers
I took the test
A group of 45 students went trip to the zoo. Each student paid $11.50 admission to the zoo. How much in all did the student pay for admission to the zoo
Answers
Answer:
517.50$
Step-by-step explanation:
11.50x45=517.50
Answer:
$517.50
Step-by-step explanation:
take 45 and multiply it by 11.50 to get ur answer of $517.50