ALGUIEN POR FAVOR AYUDEME A RESOLVER ESTOS 3 PROBLEMAS
Answer:
a. x^2 - 1
b. x^2 - 6x + 9
c. [tex]\dfrac{3x + 1}{x^2 + x}[/tex]
Step-by-step explanation:
a.
(x + 1)(x - 1) =
= x^2 - x + x - 1
= x^2 - 1
b.
(x - 3)^2 =
= (x - 3)(x - 3)
= x^2 - 3x - 3x + 9
= x^2 - 6x + 9
c.
[tex] \dfrac{3 + \frac{1}{x}}{1 + x} = [/tex]
[tex] = \dfrac{x(3 + \frac{1}{x})}{x(1 + x)} [/tex]
[tex] = \dfrac{3x + 1}{x + x^2} [/tex]
[tex] = \dfrac{3x + 1}{x^2 + x} [/tex]
I neeeed help someone help meeeeeee
The sign at the right shows the costs for a deep-sea fishing trip. How much will the total cost be for 1 adult, 2 children, and 1 senior citizen to go on a fishing trip? Use mental math.
DEEP-SEA FISHING
Adults.....$41
Children (12 & under)....$35
Seniors (65 & up)......$39
Answer:
$150
Step-by-step explanation:
1 adult ($41) + 2 children ($35+$35) + 1 senior citizen ($39)
Find the missing angle in the triangle
Answer:
61.
...juodkybog itt g8txogit I.
Answer:
C- 61 degrees
Step-by-step explanation:
56+63+x= 180 (angle sum of triangle)
119+x=180
x=180-119
x= 61
Therefore ans= C
can someone help me with the following question in the picture please
Answer:
its a straight origin
Step-by-step explanation:
I'm smart
X-9y=17 find y (use integers or fractions for any numbers in the expression)
Let's see what to do buddy...
_________________________________
[tex]x - 9y = 17[/tex]
Subtract the sides of the equation minus x
[tex] - 9y = 17 - x[/tex]
Divided the sides of the equation by -9
[tex] \frac{ - 9}{ - 9}y = \frac{17 - x}{ - 9} \\ \\ [/tex]
[tex]y = \frac{ - (17 - x)}{9} \\ [/tex]
[tex]y = \frac{x - 17}{9} \\ [/tex]
_________________________________
And we're done.
Thanks for watching buddy good luck.
♥️♥️♥️♥️♥️
4x + 6y = 9
2x = 4 - 3y
Please explain how you got your answer please. it’ll help me.
Answer:
The answer is no solutions.
Step-by-step explanation:
use systems of equations!
first, rewrite both equations so that the sum or difference includes the same variable.
[tex]9-4x=6y\\-4+2x=-3y[/tex]
notice how i made sure the coefficients that have x and y respectively line up.
with this, i can cancel out the x variables by making 2, and -4 as -8 (8+-8=0).
rewrite the equation.
[tex]2(9-4x=6y)\\4(-4+2x=-3y)\\[/tex]
distribute.
[tex]18-8x=12y\\-16+8x=-12y[/tex]
now we can successfully cancel out the x variable!
[tex]18=12y\\-16=-12y[/tex]
uh oh! it seems we can also cancel out the y variables..
[tex]18=0\\-16=0[/tex]
18 is not equal to 0 and neither is -16. because of this, we can conclude there is no solution for this system of equations.
hope this helps!!
I need help finding the solution
✩ Answer:
✧･ﾟ: *✧･ﾟ:*✧･ﾟ: *✧･ﾟ:*✧･ﾟ: *✧･ﾟ:*
[tex]\bold{Hello!}\\\bold{Your~answer~is~below!}[/tex]
✩ Step-by-step explanation:
✧･ﾟ: *✧･ﾟ:*✧･ﾟ: *✧･ﾟ:*✧･ﾟ: *✧･ﾟ:*
✺ Subtract [tex]5[/tex] from both sides:
[tex]3z<17-5[/tex]✺ Subtract [tex]5[/tex] from [tex]17[/tex] to get [tex]12[/tex]:
[tex]3z<12[/tex]✺ Divide both sides by [tex]3[/tex]. Since [tex]3[/tex] is positive, the inequality direction remains the same:
[tex]z<\frac{12}{3}[/tex]✺ Divide [tex]12[/tex] by [tex]3[/tex] to get [tex]4[/tex]:
[tex]\boxed{z<4}[/tex][tex]Hope~this~helps~and,\\Best~of~luck!\\\\~~~~~-TotallyNotTrillex[/tex]
"ටᆼට"
Find the domain of the graphed function.
Can anybody please help me out on question 4? I would really appreciate it so much. Please and thank you .
Step-by-step explanation:
b im not sure but my answer is b
I need help with these 2 questions, please help me.
Answer:
The probability of the spinner landing on 2 is one fourth.
Step-by-step explanation:
The spinner is split into 4 equal parts labeled 1, 2, 3, 4
The probability of the spinner landing on 2 is given as:
(Possibility of it landing on 2) ÷ (Total possible outcome)
The total possible outcome is 4, because the spinner could land on 1, or 2, or 3, or 4.
It can only land on 2 once, so the possibility of it landing on 2 is 1.
Probability = 1/4
Solve for x
x = _____
Answer:
x=5
Step-by-step explanation:
They are vertical angles, so they are equal.
22x+5=23x
minus 22x from each side
5=x
and you can switch it around :)
x=5
Jaycie has 21 gallons of gas in her car and uses approximately .05 gallons of gas each mile that she drives. Which equation shows the linear relationship between x, the number of miles Jaycie has driven, and y, the total gallons of gas in her car? a. Y = 21x - .05 b. Y = -.05(x+21) c. Y = 21 - .05x d. Y =21 + .05x
Given:
Jaycie has 21 gallons of gas in her car and uses approximately .05 gallons of gas each mile that she drives.
To find:
The equation which shows the linear relationship between x, the number of miles Jaycie has driven, and y, the total gallons of gas in her car.
Solution:
We have,
Initial amount of gas in car = 21 gallons
So, y-intercept of the linear relationship is 21.
It uses approximately .05 gallons of gas each mile that she drives.
It means, the gas is decreased by .05 gallons for each mile.
So, slope of the linear relationship is -0.05. Here, negative sign represents the decrease in amount of gas.
Slope intercept form of a line is
[tex]y=mx+b[/tex]
where, m is slope and b is y-intercept or initial value.
Substitute m=-.05 and b=21 in the above equation.
[tex]y=-.05x+21[/tex]
[tex]y=21-.05x[/tex]
So, the equation [tex]y=21-.05x[/tex] represents the linear relationship between x, the number of miles Jaycie has driven, and y, the total gallons of gas in her car.
Therefore, the correct option is c.
on Monday the price of gas decrease 6 cent on Tuesday in increased 9 cent what was the overall decrease or increase of the price of gas by the of the day on Tuesday
Answer:
The increase would be 3 cents
Step-by-step explanation:
if she had a child when she was 14 now her son is 21 how old is she now
Answer:
35
Step-by-step explanation:
21+14=35
Walter and Brian each have a CD collection. • The number of CDs in Walter's collection can be represented by x. • The number of CDs in Brian's collection is 3 times the number in Walter's collection. • The total number of CDs in both collections is 144. What is x, the number of CDs in Walter's collection?
Answer:
Number of CDs in Walter's collection = x = 36
Step-by-step explanation:
x denotes number of CDs in Walter's collection.
Also, the number of CDs in Brian's collection is 3 times the number in Walter's collection.
Number of CDs in Brian's collection [tex]=3x[/tex]
Total number of CDs in both Walter's collection and Brian's collection = 144
[tex]x+3x=144\\4x=144\\x=\frac{144}{4}\\ x=36[/tex]
So,
Number of CDs in Walter's collection = x = 36
8. A football team lost 3 yards on
each of three consecutive plays.
What was the team's total
change in position for the three
plays?
Answer:
x-9 yards
Step-by-step explanation:
x (the original position of the football team) -3(3)
so x-9 yards is the answer
Find the value of x for which d ||m.
A and B are alternate interior angles[tex].[/tex]
∴ ∠A = ∠B
➠ (2x - 20)° = 90°
➠ 2x = 90° + 20°
➠ 2x = 110°
➠ x = 110°/2
➠ x = 55°
Hope It Helps!The value of x for which d || m is 35° and their alternate angles are of equal measure.
What is a transversal line?A transversal is a line that intersects two lines on the same plane at two different points. When those two intersected lines are parallel their alternate angles, interior angles and exterior angles are equal and the converse of this statement is also true.
We know when two parallel lines are intersected by a transversal their interior alternate angles are equal.
∴ (2x - 20)° = 90°
2x = (90 - 20)°.
2x = 70°.
x = 35°.
learn more about transversal here :
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A submarine descends at a rate of 2.6 kilometers per hour.
If the ocean floor is 6.24 kilometers below sea level, how long will it take the submarine to descend to the ocean floor?
Round your answer to the nearest tenth. Enter your answer in the box.
Answer:
6.24/2.6 = 0.24
0.2 is the answer
Step-by-step explanation:
Answer:8.84 if you add -3.63 when sub 14.976 when multiplyed and 0.2 when devided
Step-by-step explanation:
i just use a simple mdethod and it was to do all the pfroblems then do what ever to them to get my answer
Find the equation of the line in slope intercept form
Answer:
y= 1/3x-3
Step-by-step explanation:
rise /run
-3 is the point you start
Answer:
y = 1/3x - 3
Step-by-step explanation:
First, find the slope
(3, -2)
(0, -3)
-2-(-3) = 1
3 - 0 = 3
Slope = 1/3
Now, find the y intercept
y = mx + b
-2 = 3 * 1/3 + b
-2 = 1 + b
-3 = b
Rewrite the equation
y = 1/3x - 3
Please let me know if I did something wrong!
Choose the answers above
Answer:
0.5
Step-by-step explanation:
is the following a function? each employee's social security number paired with their salary.
a.) not enough information is given
b.) yes, because each employee's social security number is unique and will be paired with just one salary
c.) no, because not all employees will have a social security number
d.) no, because more than one employee will be paired with the salary
Answer:
b.) yes, because each employee's social security number is unique and will be paired with just one salary
Step-by-step explanation:
each employees social security number will be different, but there will be more than one employee with one salary but the employee could be find by the social security number
Eric can run I mile in
6.5 minutes. How long
will it take him to run
3.5 miles?
Answer:
it will take Eric 22.75 minutes to run 3.5 miles
Step-by-step explanation:
It is a rational number because 98.45 can be turned into a fraction.
Answer:
Yes, but if you are looking for the answer it is 9845/100
Step-by-step explanation:
The posted weight limit for a covered wooden bridge in Pennsylvania is 6000 pounds. A delivery truck that is carrying x identical boxes each weighing 14 pounds will pass over the bridge. If the combined weight of the empty delivery truck and its driver is 4500 pounds, what is the maximum possible value of x that will keep the combined weight of the truck, drives, and boxes below the bridge's posted weight limit?
Answer:
The answer to x is 107
Step-by-step explanation:
If the driver and truck weigh 4500 and the bridge is can hold 6000 lbs. than there is room for 1500 more lbs. multiply 14 by 100 and get 1400, than multiply 14 by 7 and get 98. Add those to to get 1498. So the answer is x=107
The scatterplot below shows the average yearly consumption of bottled water by people in the United States starting in 1990. Using the trend line, predict the average consumption of bottled water in the year 2000.
5/6y-9=1/6y-5
What’s y
Answer:
y=4/6
Step-by-step explanation:
Step 1: Add 9 to both sides.
5/6y -9 = 1/6y -5
5/6y = 1/6y +4
Step 2: Subtract 1/6 to both sides.
5/6y= 1/6+4
y=4/6
If you are confused still, 5/6 - 1/6 is 4/6. Remember signs matter, because if the original equation was 5/6y -9 = -1/6y -5 the answer would be y= 4!
I hope this helps!! CAN I GET BRAINLIESTT?
10. A pizzeria charges $11.00 for a large cheese pizza and $0.75 per topping on the pizza. Find the slope.
A. $11.00
B. $0.75
C. $11.75
D. $10.25
Answer:
I'm pretty sure the answer is "D".
Step-by-step explanation:
A calculator screen shows a number in scientific notation as 1.04E10. Write this number in standard form.
Answer:10400000000
Step-by-step explanation:
The standard form of a number is a way of writing the number in a form of a decimal number, between 1.0 and 10.0, multiplied by a power of 10.
The standard form of the number 1.04E10 is 1.04 x [tex]10^{10}[/tex].
What is a standard form of a number?The standard form of a number is a way of writing the number in a form of a decimal number, between 1.0 and 10.0, multiplied by a power of 10.
We have,
1.04E10
This is in a scientific notation.
E10 = [tex]10^{10}[/tex]
So,
1.04E10 = 1.04 x [tex]10^{10}[/tex]
Thus the standard form of the number 1.04E10 is 1.04 x [tex]10^{10}[/tex].
Learn more about the scientific notation of a number here:
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The total weight of 30 bags of flour and 4 bags of sugar is 42.6 kg.If each bag of sugar weighs 0.75 kg,what is the weight of each bag of flour?
I think the answer is -24 but im not too sure. HELP ME
Answer:
You're right! It's -24.
Step-by-step explanation:
Integers do not include fractions, so you are left with:
A. 98
D. -24
Whole numbers do not include negative numbers, though, so A is the only whole number. That leaves you with D.
You're welcome.
