Answer:
[tex]x=2[/tex]
Step-by-step explanation:
[tex]x\left(x^2+8\right)=8\left(x+1\right)[/tex]
Expand:
[tex]x\times x^2+8x=8x+8\times 1[/tex]
[tex]x^3+8x=8x+8[/tex]
Subtract 8x from both sides:
[tex]x^3+8x-8x=8x+8-8x[/tex]
[tex]x^3=8[/tex]
Cube root both sides:
[tex]\sqrt[3]{x^3} =\sqrt[3]{8}[/tex]
[tex]x=2[/tex]
The equation y=3.2x represents the cost y (in dollars) for a taxi ride during peak hours that costs x dollars during off-peak hours. a. Solve the equation for x.
Answer:
x = y / 3.2
Step-by-step explanation:
Given:
y = 3.2x
Where
y = cost for a taxi ride during peak hours (in dollars)
x = cost for a taxi ride during off-peak hours (in dollars)
Solve the equation for x.
y = 3.2x
Divide both sides by 3.2
y / 3.2 = 3.2x / 3.2
y / 3.2 = x
x = y / 3.2
This means,
Cost for a taxi ride during off-peak hours (in dollars) = Cost for a taxi ride during peak hours (in dollars) / 3.2
If x = 1 -√2, find the value of ( x -1/x)^3
Answer:
8
Step-by-step explanation:
(x-1/x)³((1-√2)-1/(1-√2))³ 8If 7/35 = 4/y, what is y?
Answer:
y = 20Step-by-step explanation:
[tex] \frac{7}{35} = \frac{4}{y} [/tex]
First of all cross multiply
That's
7y = 140
Divide both sides by 7
That's
[tex] \frac{7y}{7} = \frac{140}{7} [/tex]
We have the final answer as
y = 20Hope this helps you
A wheel whose radius is 50 centimeters completes 6 radians in 1 seconds. What is the linear speed of a point on the rim of the wheel? Convert your answer to meters per second (m/s).
Answer:
3m/seconds
Step-by-step explanation:
In this problem we are required to solve for linear speed of the rotating wheel
The linear speed =angular speed x raduis
Given data
Radius r= 50cm
Converting from cm to m
50/100= 0.5m
Angular velocity w= 6rad/s
V=wr
V= 6*0.5m
V=3m/s
The linear speed is 3m/seconds
Answer:
get from (4,1) to (2,9) go up 8 and over 2 left (-2) - (4 - 2, 1 + 8), do this again (2 - 2, 9+8) and end up at (0,17) which is the y how do you change 7x+3y=3 into slope intercept form.
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Josh is trying to find the least common multiple (LCM) of 6 and 8. His work is shown at the right. What is Josh's mistake?
Explain how to find the correct LCM of 6 and 8.
Answer: C is the valid answer to the mistake part
Step-by-step explanation:
6: 2x 3
8: 2x 2 x 2
all together: 2x2x2x2x3 = 48
They were finding the prime factorization and what they were trying to find was the lcm.
Help I really don't know how to do this I need help !!!!!!
Answer:
It would be C for it is the lowest.
Step-by-step explanation:
Since all of these numbers are fractions we can divide them by the denominator and see which one would be the lowest. If we do that we will end up getting C.
A - 0.5
B - 0.5
C - 0.4
D - 0.45
Tom bought 8 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are now only 32 cards left. How many cards did Tom start with ?
Answer:
56
Step-by-step explanation:
Help me plz!!!!!!!!!!!!
What is 1.8b + 4.5b?
How many times larger is 5 x 10^6 than 5 x 10^2
A. 125
B. 625
C. 1000
D. 10,000
Answer:
10,000
Step-by-step explanation:
Answer:
the answer is D
Step-by-step explanation:
Help!!I need this done! Best answer wins brainlest REAL ANSWERS!!!
C (the bottom left one), because the number of total possible spins that C has is 10, which therefore answers the question.
A can of soup in the shape of a cylinder has a radius of 3.8cm and a height of 11cm. What is the surface area of the can to the nearest tenth?
Answer:
The answer would be 41.8
Step-by-step explanation:
All you have to do is multiply length times width to get the area of an object.
There is an attachment at the bottom help me please.
Answer:
Fourth option
Step-by-step explanation:
We know that A and B are rational numbers because they can be written as the quotient of two integers. Therefore, that eliminates the first and third options because they state that (at least) one of the numbers is irrational but we know that both are rational, hence, they are incorrect. The second option is incorrect because A · B = [tex]\frac{mn}{pq}[/tex], not [tex]\frac{mp + nq}{pq}[/tex], therefore, the correct answer is the fourth option.
simplify (sin^4(x) - cos^4(x)) / (sin^2(x) - cos^2(x))
Answer:
1
Step-by-step explanation:
Using the trig. identity
sin²x + cos²x = 1
Given
[tex]\frac{sin^4x-cos^4x}{sin^2x-cos^2x}[/tex]
[tex]sin^{4}[/tex]x - [tex]cos^{4}[/tex]x ← is a difference of squares and factors as
(sin²x - cos²x)(sin²x + cos²x), then fraction becomes
= [tex]\frac{(sin^2x-cos^2x)(sin^2x+cos^2x)}{sin^2x-cos^2x}[/tex] ← cancel (sin²x - cos²x) on numerator/ denominator
= sin²x + cos²x
= 1
3: Mary has 26 sweets and is able to share them evenly between her friends.
Mary has more than 1 friend.
Write down how many friends Mary might have.
Answer:
Mary has 12 friends, and a total of 13 people including her. Or, she has 25 friends, and a total of 26 people including her.
Step-by-step explanation:
First, we know that 26 is divisible by 1, 2, 13, and 26 because (2x13) and (1x26) both equal 26 but we know that Mary has more than 1 friend and if Mary is also added to the group where the candy is divided, that means that 1 and 2 are both out because Mary has more than 1 friend so 1 cannot be the answer and if Mary has 2 friends, that means that the candy would have to be divided 3 ways which is not possible evenly so the answer is either 12 friends or 25 friends.
Hector has 10 cups of flour. Which equation shows how to determine the number of Two-fifths of a cup servings there are in the 10 cups of flour? 10 divided by two-fifths = 25 10 times two-fifths = 4 Two-fifths divided by 10 = StartFraction 1 Over 25 EndFraction Five-halves divided by 10 = one-fourth
Answer:
10/(2/5)
Step-by-step explanation:
If you want to find how much of something is in another thing, you divide.
Answer:
The answer is A 10 divided by 2/5=25. I just took the test on Ed
Step-by-step explanation:
bruh no one answers my question
Answer:
what was your question?
Determine whether the equation 12y+6=6(2y+1) has one solution, no solution, or infinitely many solutions. If it does have a solution, what is it?
Answer: Infinitely many solutions
First person to answer gets branliesg f(x)=|x+6|
Answer:
Domain: (-infinity, infinity)
Range: [0,infinity)
Answer:
Domain: Negative infinity less than to x less than inifinity.
Range: [0, infinity)
X-Intercept: (-6, 0)
Y-Intercept: (0, infinity)
Asym: None
Minimum: (-6, 0)
what is 5/6 + 4/6 + 1/6?
Answer:
The answer would be 1 2/3.
Step-by-step explanation:
First: (Add)
5/6 + 4/6 + 1/6 = 10/6.
Leaving the denominator the same.
Next: (Breakdown)
6 can go into 10, 1 time. With 4 more left. Which is 1 4/6.
Then the numerator and denominator can be divided both by 2. Which equals 1 2/3.
A boat sailing at a speed of 35 mph set to head due west encounters a wind blowing 15 mph due south. What is the approximate resulting speed of the boat?
Answer:
38.08mph
Step-by-step explanation:
The question tells us that the speed of
Speed of boat = 35mph
Wind blowing = 15mph
We have to use the pythagorean theorem in other to find the resulting speed.
So,
Speed² = 35² + 15²
Such that
Speed = √35² + 15²
Speed = sqr(1225 + 225)
Speed = sqr(1450)
Speed = 38.08
The approximate resulting speed of the boat is therefore 38.08mph
yes I am so certainly brainly right now
What is that supposed to mean
Please answer ASAP. You need to find what the mistake Page made. WILL AWARD BRAINLEST TO WHOEVER GIVE CORRECT ANSWER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer: She added 7x and 3y
Step-by-step explanation: The final answer should be 7x + 3y, not 10xy.
Answer:
She added 7x and 3y
Step-by-step explanation:
the final answer answer should be 7x + 3y, not 10xy. bc that is the mistake and ima give credit to the person who answered first bc it looks like i took the answer from them and i did not
have a blessed day byeee
Record the mass of the object based on the reading from the mass of the object is
the triple-beam balance
grams
Answer:
167
Step-by-step explanation:
Answer:
167
Step-by-step explanation:
In the Caribbean Sea, there are 15 yachts, 32 sailboats, and 8 trawlers. What fraction of the boats are sailboats?
Answer:
32/55
Step-by-step explanation:
You have to get the total number of boats first :
15 + 32 + 8 = 55
out of the 55 boats, 32 are sailboats
the fraction would be :
32/55
Hope this helps :)
We are solving for #4
Answer: 3.50p + 5.50p +6 = 51; 61
Answer: 5 people
Step-by-step explanation:
For this word problem, we can use the description in the problem to construct an equation. Let's use x for number of people.
3.5x+5.5x+6=51 [combine like terms]
9x+6=51 [subtract both sides by 6]
9x=45 [divide both sides by 9]
x=5
There were 5 people that went to the fair.
-3r + 16 >-r- 4r
solve r
show work
Answer:
r = - 8
Step-by-step explanation:
First, put -3r + 16 and -r - 4r equal to each other. -3r + 16 = -r - 4r, then combine the -r -4r to equal -5r so the equation is easier to solve. -3r + 16 = -5r, then add 3r to both sides to get 16 = = -2r and then divide both sides by -2 to get r = -8.
A gym charges $45 per month and a $75 one-time starting fee. Which of these
will show how much it costs to join the gym for one year?
)
(45 x 12) + 75 = c
(45 + 75) x 12 =c
(75 - 45) x 12 = c
(75 x 12) + 45 = c
Answer:
(45 × 12) + 75 = c
Step-by-step explanation:
45 × 12 months + 75 starting fee
how do you round up/down numbers PLEASE ANSWER
Answer:If the number is over 5 then you go to the next number
Step-by-step explananation
7.99 = 8 its over 5
Which of the following equations has been vertically stretched by a factor
of 5?
A) Y=|x+5|
B) Y=|x-5|
C) Y=5|x|