Answer:
B: after 5 months
Step-by-step explanation:
Make to equations from the given information
Let y be the cost, and let x be the number of months
Gym 1: y = 35.65x + 75
Gym 2: y = 17.95x + 164
It wants to know when the cost will be the same, so set the 2 equations equal to each other and solve..
35.65x + 75 = 17.95x + 164
17.70x = 89 (subtract 17.95x and 75 from both sides)
x = 5.02 (divide both sides by 17.7)
So after 5.02 months the cost will be equal, since 5.02 is greater than 5 months, the answer is after 5 months, which is B
What is the 9 percent out of 600
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❖ 9% of 600 = 54
9/100 * 600 = 54
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9% out of 500
0.09* 500 = 45
45
what is the range of the cubic function f(x)=2x^3+21
A(-∞,+∞)
B(-∞,21)
C(21,+∞)
D(-∞,21)U(21,+∞)
ANSWER
A
[tex]( - \infty , + \infty )
[/tex]
EXPLANATION.
The given function is
[tex]f(x) = 2 {x}^{3} + 21[/tex]
Let
[tex]y= 2 {x}^{3} + 21[/tex]
Solve for x.
[tex]2 {x}^{3} = y - 21[/tex]
[tex] {x}^{3} = \frac{1}{2} y - \frac{21}{2} [/tex]
Take cubic root of both sides,
[tex]x = \sqrt[3]{ \frac{1}{2} y - \frac{21}{2} } [/tex]
x is defined for all real values of y.
The range refers to the values of y, for which x is defined.
Hence the range is all real numbers.
In interval notation, we write this as,
[tex]( - \infty , + \infty )
[/tex]
The correct choice is A.
Answer:
Yes it’s A
Step-by-step explanation:
A large snowfall of 45 inches fell on Buffalo if one third of the snow melts each day, how much snow will remain
Answer:
Step-by-step explanation:
45/3=15
15" of snow melts each day, so after day 1 30" of snow will remain, after day 2 15" will remain and after day 3 all snow will be gone.
The parallelogram shown below has an area of 135 units2 Find the missing base.
===================================================
Explanation:
The area of the parallelogram is equal to the base times height. The formula to use is A = b*h. The height and base are always perpendicular to one another.
The base is some unknown variable b. Multiply the base by the height 15 to get 15*b which is equal to the area 135
Therefore, 15*b = 135
Divide both sides by 15 and we isolate b
15b = 135
15b/15 = 135/15
b = 9
So the base is 9
Check:
area = base*height = 9*15 = 135
so the answer is confirmed
side note: we never use the value 17 at all. It is likely put in there as a distraction.
Answer:
9
Step-by-step explanation:
Khan Academy
(a+b)(a^2+ab+b^2) multiply polynomial
Answer:
[tex]\large\boxed{(a+b)(a^2+ab+b^2)=a^3+2a^2b+2ab^2+b^3}[/tex]
Step-by-step explanation:
Use FOIL: (a + b)(c + d) = ac + ad + bc + bd
[tex](a+b)(a^2+ab+b^2)\\\\=(a)(a^2)+(a)(ab)+(a)(b^2)+(b)(a^2)+(b)(ab)+(b)(b^2)\\\\=a^3+a^2b+ab^2+a^2b+ab^2+b^3\qquad\text{combine like terms}\\\\=a^3+(a^2b+a^2b)+(ab^2+ab^2)+b^3\\\\=a^3+2a^2b+2ab^2+b^3[/tex]
Given f(x) = 2x + 1 and g(x)= 3x+2, what is f(3)/ g(2)
Answer:
[tex]\large\boxed{\dfrac{f(3)}{g(2)}=\dfrac{7}{8}}[/tex]
Step-by-step explanation:
[tex]f(x)=2x+1,\ g(x)=3x+2[/tex]
[tex]f(3)\to\text{put x = 3 to the equation of}\ f(x):\\\\f(3)=2(3)+1=6+1=7[/tex]
[tex]g(2)\to\trext{put x = 2 to the equation of}\ g(x):\\\\g(2)=3(2)+2=6+2=8[/tex]
[tex]\dfrac{f(3)}{g(2)}=\dfrac{7}{8}[/tex]
The average distance from the sun to Jupiter is 778 million km. The distance is 550 million km greater than the average distance from the sun to mars. Write and solve an equation to find the average distance that mars is from the sun (in millions of km)
The average distance from the sun to Mars can be found by setting up an equation based on the given information. Subtracting 550 from the average distance to Jupiter gives the average distance to Mars, which is 228 million km.
Explanation:We know that the average distance from the sun to Jupiter is 778 million km, which is 550 million km more than the distance from the sun to Mars. We could express it in the form of an equation and solve to find the average distance that Mars is from the sun. Let's denote that Mars is 'x' million km from the sun. Then we can write it as:
x + 550 = 778
To find x, we need to subtract 550 from both sides of the equation, which gives us:
x = 778 - 550
And so, the distance from the sun to Mars is x = 228 million km.
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Write a story problem about 40 apples and 17 pears
Final answer:
This story problem involves calculating the sales and remaining stock of 40 apples and 17 pears at Ms. Adams' farmer's market stand, applying basic arithmetic operations in a real-life scenario.
Explanation:
Imagine a local farmer's market where Ms. Adams has a stand selling fruits. This particular Saturday, she starts with 40 apples and 17 pears. Throughout the day, customers buy apples and pears at different rates. By midday, half of the apples were sold. An hour later, five customers each bought 2 pears. By the end of the day, Ms. Adams noticed she sold twice as many apples as pears.
Your task is to use this story to calculate:
How many apples did Ms. Adams sell?How many pears did she sell?How many of each fruit does she have left?This problem helps students practice basic subtraction, division, and multiplication within a real-world context, applying arithmetic operations to solve a practical problem.
15.755264 round to the nearest tenths
Answer:
15.8
Step-by-step explanation:
Rounding to the nearest tenths means we are focusing on the number 7 and the number after it- 5. Because it is a 5, we will round the number 7, one higher. If it were to be a 4, it would stay a 7.
Answer:
15.8 is the Answer
Step-by-step explanation:
1) 5 in the hundreds place will be turn to 6 due to the fact that in can round up because a 5 is in the thousandth place.
2) Since 6 is 5 and greater than 5 it will round up 7 in the tenths place to 8.
hopes this helps.
What is a theoretical and Experimental Probability?
Answer:
See below...
Step-by-step explanation:
Theoretical probability is the probability that something should happen based on the beginning conditions. Such as having a jar of 30 marbles with 5 being blue. The probability of pulling out a blue marble when selecting 1 marble is
5/30, or 1/6. Theoretically you should pull one blue marble out every 6 times you pull a marble out.
This isn't guaranteed to happen though, that's where experimental probability comes form.
Experimental probability is the number of desired outcomes achieved, divided by the total number of outcomes. This is based on what actually happened. Say you selected a marble, and put it back 10 times, recording the color each time and you got 2 blue marbles. Your experimental probability is
2/10, or 1/5, which doesn't match the theoretical probability. The more times this experiment is conducted, the closer your result will be to the theoretical probability
What is the value of this expression?
22.26 x 10^7 is the correct answer
Multiply the decimal numbers:
5.3 x 4.2 = 22.26
When multiplying scientific numbers, add the exponents together: 4+3 = 7
So you now have 22.26 x 10^7
Now you need to convert 22.26 to a scientific number, by only having one number to the left of the decimal point.
You need to move the decimal 1 place to the left, which means you need to add 1 more to the exponent.
The final answer would be 2.226 x 10^8
I need help please????
Answer:
It's True 36/9=4
4*3=12
Answer: 12
Step-by-step explanation:36 divided by 9=4
4 times 3 is 12
The area of a triangular block is 64 square inches. If the base of the triangle is twice the height, how long are the base and the height if the triangle?
hope i could helpp!!!!
Convert 2.618 to degrees
Answer:
2.618 in Degrees Celsius is 36.7124 Degrees Fahrenheit. 2.618 in Degrees Fahrenheit is -16.323333 Degrees Celsius.
the scuba diver standing on a boat is at an altitude of 1.3 meters above sea level. The scuba diver jumps into the water and decreases his altitude by 5.6 meters in one minute. what equation can be used to represent the divers altitude
Since the scuba diver jumps into the water and decreases his altitude by 5.6 meters in one minute, the equation that can be used to represent the divers altitude is [tex]y = -5x + 1.3[/tex]
What is the eqquation?The standard equation is [tex]y = mx + b[/tex]
y,x = variables
m = rate of change
b = initial value of y.
y = the height of the scuba driver after x minutes.
Given that b = 1.3
m = -5.6(decrease in altitude)
Then the equation can be written as ; [tex]y = -5x + 1.3[/tex]
hence scuba driver height is given by the equation [tex]y = -5x + 1.3[/tex]
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missing options;
A.
1.3 + 5.6
= 6.9
B.
-1.3 + 5.6
= 4.3
>
O
C. 1.3+(-5.6) = – 4.3
>
O
D. -1.3+(-5.6) = -6.9
The equation that represents the scuba diver's altitude after jumping into the water is y = 1.3 - 5.6t, where y is in meters and t is in minutes.
Let y represent the diver's altitude in meters relative to sea level after t minutes. Initially, at sea level, we have y(0) = 1.3. Due to the descent in water, the altitude decreases by 5.6 meters per minute, which means the altitude change per minute can be represented by
-5.6t. Thus, the equation that can be used to represent the diver's altitude as a function of time is:
y = 1.3 - 5.6t
where y is in meters and t is in minutes.
Complete the following proof.
Given: 2x + 11 = 15
Prove: x = 2
Statements Reason
1. 2x + 11 = 15 1. Given
2. 2x = 4 2.
3. x = 2 3. Division Property of Equality
Answer:
it is the subtraction property of equality
Miles saves $22.45 each month for 6 months. In the seventh month,he only saves $10.50. How much money would Miles save after 7 months
Please help me
Answer:
I think it is 145.20
Step-by-step explanation:
I did 22.45x6=134.70+10.50=145.20
Answer:
$145.04
Step-by-step explanation:
$22.45 * 6 + $10.50 = $145.04
what two integers have a product of -35 and a sum -2
-7 and 5. The product would be -35 and the sum -2.
Hope this helps
Sylvie bought 13 bagels and a container of cream cheese. Each bagel cost the same price. The cream cheese cost $2.95. Sylvie spent a total of $7.50. Write an algebraic equation to represent the situation. Solve the equation to determine the cost of each bagel.
Answer:
0.35 cents
Step-by-step explanation:
7.50-2.95= 4.55
4.55 / 13 bagels = 0.35
Which statement is most likely to be true for this distribution?
A. The mean is the same as the median.
B. The mean is less than the median.
C. The mean is greater than the median.
In a distribution, if the data is skewed left, the mean is less than the median; if skewed right, the mode is often less than the median, which is less than the mean.
Explanation:In a distribution, if the data is skewed to the left, the mean is less than the median, which is often less than the mode. On the other hand, if the data is skewed to the right, the mode is often less than the median, which is less than the mean. Therefore, the most likely statement to be true for this distribution is B. The mean is less than the median.
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The statement that is most likely to be true for this distribution is The mean is greater than the median.
What is right skewed distribution?This distribution is "bunched up" at the left and has a larger tail to the right, indicating that it is right skewed. The median will be nearer the left side of the graph in a right-skewed distribution since most of the data points are at the smaller end.
The mean will rise and become greater than the median due to the increased numbers in the "tail". A positively skewed distribution, also known as a right-skewed distribution in statistics, is one in which the majority of values are concentrated at the left tail of the distribution while the right tail is longer. The distribution that is negatively skewed is directly opposed by the positively skewed distribution.
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The length of a room is 20 ft. and its width is 12 ft. What's the perimeter?
Answer:
64
Step-by-step explanation:
20 + 20=40
12 +12 = 24
24+40=64
Answer:
Perimeter = 64ft
Step-by-step explanation:
Perimeter is the sum of the sides i.e. length and width
Perimeter = 20+20+12+12 = 64
Function transformation which of the following is equal to g(x)?
Answer:
The answer is
g(x) = (x-3)^3
Step-by-step explanation:
We can easily solve this problem by plotting each equation with a graphing tool or calculator.
Please see attached graph
The correct answer is
g(x) = (x-3)^3
Need help with this problem.
Answer:
16 to 20 spells
Step-by-step explanation:
4 to 5 spells and you find how much you need to multiply it by and in this case it is 4. Take the 4 and multiply it to 5 and 4 and you will get your answer.
Answer:
25
Step-by-step explanation:
Luna casts 4/5 of the amount of spells that Ginny casts (busy witches), so you take 1/4 of 20 and add it to 20. In other words, add 20 + 5
A certain gas station requires a minimum of $5 to use a debit card. You plan on buying a soda and however many bags of cheetos required to use your debit card. A soda costs $1.20 and bags of cheetos cost $1.40 each. Let x be the number of bags of cheetos you buy, and create an inequality that models the situation above
Answer:
1.20 + 1.40x ≥ 5, or $1.20 + $1.40x ≥ $5
Step-by-step explanation:
So since you are only buying 1 soda and you are buying multiple bags of Cheetos so you are able to use you debit card and meet the requirement of at least $5, you can make the inequality:
1.20 + 1.40x ≥ 5, or $1.20 + $1.40x ≥ $5
where x is the number of bags of Cheetos.
Judy needs to take out a personal loan for $2,500 for tuition assistance. Her bank has offered her one of the four loan packages outlined in the chart below. Determine which of the four loans will be cheapest for Judy in the long run. All interest rates are compounded monthly.
The answer would be Loan A
even though she'll pay more per month, with the others she'll pay be paying more by the time she as payed it off due to having to pay interest over a longer period of time
Answer:
Loan A is the cheapest.Step-by-step explanation:
The different loan plans are showed in the image attached.
Loan A: 12 months of duration with 9.50%.
Loan B: 24 months of duration with 8.75%.
Loan C: 36 months of duration with 7.75%.
Loan D: 48 months of duration with 6.60%.
Now, all loans are compouneded monthly. Let's the compound interest formula
[tex]A=P(1+\frac{r}{n} )^{nt}[/tex]
Loan A:
[tex]A=2500(1+\frac{0.095}{12} )^{12(1)}\\A=2,748.12[/tex]
Loan B:
[tex]A=2500(1+\frac{0.095}{24} )^{24(2)} \\A=2500(1.004)^{48}\\ A=3,028.02[/tex]
Loan C:
[tex]A=2500(1+\frac{0.095}{36} )^{36(3)} \\A=2500(1.003)^{108}\\ A=3,454.94[/tex]
Loan D:
[tex]A=2500(1+\frac{0.095}{48} )^{48(4)}\\ A=2500(1.002)^{192}\\ A=3,668.95[/tex]
Now, if you compare, you will observe that Loan A offer the cheapest result for Judy.
Therefore, Judy should use the Loan A plan.
Factor completly: x3 + 7x2 + 10x
[tex] {x}^{3} + 7 {x}^{2} + 10x \\ = x( {x}^{2} + 7x + 10) \\ = x( {x}^{2} + 5x + 2x + 10) \\ = x(x + 5)(x + 2)[/tex]
your answer is x(x+2)(x+5)
x3+7x2+10x
x3+7x2+10x
=x(x+2)(x+5)
Solve the triangle for x.
For this case we have that the law of cosine is given by:
[tex]c ^ 2 = a ^ 2 + b ^ 2-2 (a) (b) * cos (x)[/tex]
Where:
[tex]c = 12 \ ft\\a = 8 \ ft\\b = 9 \ ft[/tex]
We replace:
[tex]12 ^ 2 = 8 ^ 2 + 9 ^ 2-2 (8) (9) * cos (x)\\144 = 64 + 81-144 * cos (x)\\144 = 145-144 * cos (x)\\-1 = -144cos (x)\\cos (x) = \frac {1} {144}\\x = cos ^ {- 1} (\frac {1} {144})\\x = 89.60 \ degrees[/tex]
Answer:
Option B
Donnovan earned 99 points on his science project. If his grade was a 90%, how many points were possible?
PLEASE HELP!!!
PLEASSSSSSSSSSSSSSEEEEEE?
Answer:
Total points were 110.
Step-by-step explanation:
90/100*x=99
9/10*x=99
=x=99*10/9
=x=11*10
=110
Please Find g(x)-h(x)
Answer:
B
Step-by-step explanation:
g(x) - h(x)
= 5x² - 10x + 9 - ( - 3x³ + 5x - 6) ← distribute parenthesis by - 1
= 5x² - 10x + 9 + 3x³ - 5x + 6 ← collect like terms
= 3x³ + 5x² - 15x + 15 → B
Math help please..............
The answer is 2. The rate of change between -1 and 0 is 3 and between 0 and -1 is 1. The average between 3 and 1 is 2.
Answer:
- 2
Step-by-step explanation:
The average rate of change in the closed interval [ a, b ] is
[tex]\frac{f(b)-f(a)}{b-a}[/tex]
here [ a, b ] = [ - 1, 1 ]
f(b) = f(1) = 1 - 2 = - 1
f(a) = f(- 1) = 1 + 2 = 3
Hence
average rate of change = [tex]\frac{-1-3}{1-(-1)}[/tex] = [tex]\frac{-4}{2}[/tex] = - 2