Answers
Related Questions
Simplify the equation.
Answers
Answer:
Step-by-step explanation:
5(x-3y)+2(4x+y)-(x+y)
5x-15y+8x+2y-x-y
5x+8x-x-15y+2y-y
13x-x-13y-y
12x-12y
explanation:
add 5x and 8x and you get 13x−15y+2y−x−y
then subtract x from 13 x and you get 12x-15y+2y-y
then you add -15y and 2y and you get 12x-13y-y
then you subtract y from -13y and you get 12x-14y (answer).
Use the distributive property to remove the parentheses. Simplify your answer as much as possible. 2/3(5+9u)
Answers
Answer: 18u + 10/3
Step-by-step explanation: sorry if im wrong
Answer:
\(\boxed{\sf 6 u + \dfrac{10}{3}}\)
Explanation:
Given expression:
\(\sf \rightarrow \dfrac{2}{3} (5+9u)\)
distribute inside parenthesis
\(\sf \rightarrow \dfrac{2}{3} (5)+ \dfrac{2}{3} (9u)\)
multiply variables
\(\sf \rightarrow \dfrac{10}{3} + \dfrac{18}{3} u\)
simplify following
\(\sf \rightarrow 6 u + \dfrac{10}{3}\)
The hypotenuse of a right triangle has a length of 14 units and a side that is 9 units long. Which equation can be used to find the length of the remaining side?
Answers
Answer:
Step-by-step explanation:
Pitagora theorem is 14^2=9^2+x^2
-9^2 -9^2
so the equation is
x^2=14^2-9^2
Answer:
10.7 units
Step-by-step explanation:
Well this is actually pretty simple.
You have to use the Pythagorean Theorum formula which is \(a^2+b^2=c^2\) and in this case we have a and c.
So c is 14 and a is 9 so we can plug those numbers in.
\((9)^2+b^2=(14)^2\).
So 9 squared is 81 and 14 squared is 196.
So to get b by itself we have to subtract 81 by 196 which is 115.
Now we have to find the square root of 115 and b which is b and about 10.7 units.
So The length of the remaining side is 10.7 units.
woah carrot plus grape what is it?
grarrot
carrape
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Answer:
well if you mix together will make Both
Step-by-step explanation:
But in this case It will be Carrot
I need help with the rest of them PLEASE!!!!
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helppppppp plsssssssssss
Answers
Answer:
don’t blame me if you get it wrong but it’s b and c
Step-by-step explanation:
Terri is trying to save $250 so she can buy a new surfboard . She has \$75 saved already and plans to save $45 per week . How many weeks will it take her to save up enough money to purchase a new surfboard ?
Answers
Answer:
It will take Terri 4 weeks to save up enough money for a new surfboard.
Step-by-step explanation:
250-75= 175
175/45= 3.888
But its asking for whole weeks, so round to the nearest whole number, which is 4.
btw 45x4= 180 so she'll have 5 extra dollars.
x= number of weeks
250=75+45•x
75+45•x=250
45•x=250-75
45•x=175
x=175/45
x=3.88
Terri needs to save money for at least 4 weeks.
4•45=$180
$180+$75=$255
Hello can you guys help me with this
Answers
Answer:
Put a dot at 1,4 2,8 3,12 4,16 5,20
Step-by-step explanation:
x goes this way <----->
Y goes this way ↑ and ↓
Answer:
dot at 1,4 2,8 3,12 4,16 5,20
Step-by-step explanation:
Yvonne’s bakery makes blondies and brownies. ● Blondies are squares with 3 inch sides. ● Brownies are squares with 6 inch sides. ● The tray that displays the blondies and brownies has an area of 648 square inches and is completely full. If she has 4 rows of blondies and 4 rows of brownies, what fraction of the area of the tray, in square inches, is blondies?
Answers
Answer:
1/2 half of them are blondies
Step-by-step explanation:
Answer:
Step-by-step explanation:
the answer is 1/2 half of them are blondies
Quick only 5 minutes to answer!
Question: Tyler and Kiran each started running at a constant speed at the same time. Tyler ran 4,200 meters in 30 minutes and Kiran ran 6,300 meters in 1/2 hour. Eventually, Kiran ran 1 kilometer (1000 meters) more than Tyler. How much time did it take for this to happen?
(I'll give 12 points and I'll name you brainlist.
Answers
Answer:
14 and 2/7 minutes, or 100/7 minutes
Step-by-step explanation:
To begin with, supposed the rate at which Tyler and Kiran are running are variables T and K. We can come up with the equations
30T= 4,200 and
30K= 6,300.
Where 30 is the number of minutes, multiplied by the rate at which they are running to equal the total distance ran. We can isolate the variables by dividing both sides of both equations by 30, resulting in Tyler's speed of 140 meters per minute and Kiran's speed of 210 meters per minute.
We can then plug these values into a final equation where x is the amount of time taken for Kiran to run 1 km more than Tyler
We end up with this: 210x= 140x+1000
Solve first by subtracting 140x from 210x to get 70x, and then divide both sides by 70. This isolates x and you get a final answer of 14 2/7 minutes, or 100/7 minutes
And sorry I couldn't get this to you in the 5 minutes you needed, but I hope this at least helps you understand the concept :')
It will take 14 and 2/7 minutes, or 100/7 minutes, for this to happen.
What is the equation?The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.
To begin, consider Tyler and Kiran's running rates to be variables T and K. We can create the equations.
30T= 4,200 and
30K= 6,300.
Where 30 is the number of minutes multiplied by the speed of running to equal the total distance run. By dividing both sides of both equations by 30, we can isolate the variables, obtaining Tyler's speed of 140 meters per minute and Kiran's speed of 210 meters per minute.
We have to substitute the value into a final equation where x is the time it takes Kiran to run 1 km further than Tyler.
We end up with this: 210x= 140x+1000
To begin, remove 140x from 210x to get 70x, then divide both sides by 70. This isolates x, obtaining a final result of 14 2/7 minutes, or 100/7 minutes.
Thus, It will take 14 and 2/7 minutes, or 100/7 minutes, for this to happen.
Learn more about the equation here:
brainly.com/question/13947055
#SPJ2
Express the following sums and summation notation.
pls help me, i need this for tomorrow
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For question 6 the answer is 91 just add the numbers
someone help me with this
Answers
Answer:
Step-by-step explanation:
cassie is placing stickers on a page that is 12 inches long and 8 inches wide the sticker are 3 inches long and 2 inches wide
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Answer:
To find the greatest number of stickers Cassie can place on a page that is 11 inches long and 8 inches wide without them overlapping, we need to use the same approach as before.
Firstly, we need to calculate the maximum number of stickers that can fit along the length of the page, which is now 11 inches. Since each sticker is 3 inches long, we can fit 3 stickers along the length (11 ÷ 3 = 3 with a remainder of 2).
Next, we can calculate the maximum number of stickers that can fit along the width of the page, which is still 8 inches. Since each sticker is 2 inches wide, we can fit 4 stickers along the width (8 ÷ 2 = 4).
To ensure that the stickers do not overlap, we can only use the full row of 3 stickers from the previous calculation. Therefore, we can place 3 stickers along the length and 4 stickers along the width, giving us a maximum of 12 stickers that Cassie can place on the page without them overlapping.
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
First, find out how much stickers you can put on the long side:
12/3 = 4
Next, find out how much stickers you can put on the wide side:
8/2 = 4
Lastly, calculate them together:
4x4=16
So the answer is 16.
please help me!! i need help!
Answers
It is 56 r4 bc if u do 6x6 it is 36
Answer: The answer is 6
Step-by-step explanation:
6*6=36
A vehicle rental company charges $35 to rent a moving van plus $.40 for each mile traveled. Which expression represents the total cost of renting a van and driving d miles? *
A. 35 + d
B. 35 + 0.40d
C. 35 – 0.40d
D. 35d + 0.40
Answers
Answer:
B
Step-by-step explanation:
B is the answer
Answer:
D
Step-by-step explanation:
I will mark brainlest
Juan height of a mountain he hiked down at a consistent rate the table shows you want elevation at each hour after you begin to descend which function describes you want elevation during the descent
Answers
Answer:
there is no table so I can't help
Step-by-step explanation:
Answer:
What are the answer choices??
I have a number between 60 and 80. I have a remainder of 3 when divided by 4. I have a remainder of 1 when divided by 7. What number am I?
Thanks
Answers
Answer:
71
Step-by-step explanation:
Divide 71 by 7 and you get 10 and 1 leftover. Divide 71 by 4 and you get 17 with 3 leftover.
71
Step-by-step explanation:
Divide 71 by 7 and you get 10 and 1 leftover. Divide 71 by 4 and you get 17 with 3 leftover.
Directions: Answer each of the following questions.
1. Do you know the current world population? What units did you use in this estimate? What site did you use to locate this information?
2. What is the increase in the world population over the last 10 years? What site did you use to locate this information?
3. Look at the table below. Compare the population growth in the last ten years to the growth between 1950 -1960. How did you compare the growth over different periods of time?
4. Do you think it would be useful to be able to predict future population? Why?
5. Identify factors that influence population growth?
6. Identify possible consequences of population growth.
Part B
Directions: Review the table below that includes the world population for selected years.
Year
1950
1960
1970
1980
1985
1990
1995
1999
Population (billions)
2.555
3.039
3.708
4.456
4.855
5.284
5.691
6.003
U.S. Census Report http://www.census.gov
a. Research the world population growth from 2000-2005, and from 2005-2010. Create a table for your data. Provide the site that you used to gather the data.
Part C: Analyze the data
Directions: Answer each of the following questions.
1. How much did the population change between 1950 and 1960? What was the average annual change for that period? Hint: Calculate the changes, then calculate the mean, or average, by dividing by the number of years. State the units clearly. The units are listed on the chart.
2. Repeat question 1 for the period between 1970 and 1980; between 1990 and 1995.
3. Do you think a linear model (or graph) would best illustrate this data? Explain your reasoning.
Part D: Interpret your data
Directions: Answer each of the following questions.
1. Is the average change in population the same now as it was 50 years ago? Explain your answer.
2. Reflect on the interpretation of your data.
3. What should you consider when comparing population growth (or decline) over different intervals of time? Hint: What factors influence population growth or decline? Explain fully and provide examples where needed.
Answers
Answer:
I don't think anyone is going to answer ALL of those questions but ill get you started...
Step-by-step explanation:
1: 7.8 billion. Used billions as my unit. Did not use a site, I already knew this information.
2: The population has increased by approximately 12% in the last 10 years. Worldometer.com shows this information.
3: 1950 population: 2.5 billion, 1960 population: 3.039 billion. The population comparison can be achieved by looking at the increase in billions. The increase was almost 0.6 billion.
Hopefully, that can get you started.
Easy brainly for anyone who can solve this
(747+21) - (629 -12) +83 x 24
Answers
Answer:
83x^24+151
Step-by-step explanation:
768-(629-12)+83x^24
768-617+83x^24
83x^24+(768-617)
83x^24+151
GIVING 30 POINTS!
What is the least common denominator for these two fractions?
Answers
Answer:
The LCD is 12
Step-by-step explanation:
Answer: 12
Step-by-step explanation:
= -2/3 -(-3/4)
= -2/3 +3/4
= -8/12 + 9/12
so the least common denominator here will be 12 as via factorization will get 2×2×3 = 12
Look at the image below.
I give Brainliest
Answer the questions.
Answers
Answer:you do every number plus 24 and that’s how you get it
Step-by-step explanation:
The points (5.6) and (25,30( form a proportional relationship. Find the slope of the line through the points. Then use the slope to graph the line
The slope is ( ??? )
Answers
Answer:
I assum you me (5,6) (25,30)
m= \(\frac{6}{5}\) or m= 1.2
Step-by-step explanation:
You can find slope by using this formula: m= \(\frac{y2-y1}{x2-x1}\)
Subtract the numbers : \(\frac{24}{20}\)Reduce the fraction : \(\frac{6}{5}\)Question 1: Rory finds a toy that costs $11.00. She pays $0.86 in tax. What was the sales tax rate?
Question 2: A customer pays $3.22 in tax for an item they bought at a 5.5% tax rate. How much was the original price of the item?
Question 3: Yolanda buys jeans at store A that cost $22.00 before tax, and she buys jeans at store B that cost $20 before tax? Assuming a 6% sales tax, how much did she have to pay in total for both pairs of jeans?
Answers
Answer:
1.The answer to question 1 is 9.46
2.The answer to question 2 is 17.71
3.The answer to question 3 is 2,640
(I hope I helped you) =)
tan theta = 24/43 what is the value of theta HELPP (10 points + gifts)
Answers
arctan(tan(theta)) = arctan(24/43)
Since arctan(tan(theta)) = theta (for -π/2 < theta < π/2), we have:
theta = arctan(24/43)
Using a calculator or a table of trigonometric functions, we can evaluate this as:
theta ≈ 29.5 degrees (rounded to one decimal place)
Therefore, the value of theta is approximately 29.5 degrees.
I don't get what they mean by "Coach Green could possibly have
7,9, or 12 players on her team." It definitely not 12 I think but I really don't get it
Answers
Answer:
the answer is 7 as 7 is not divisible by anythign exept for one
Step-by-step explanation:
evaluate x+3 squared by 2 - 6 when x = 4
Answers
Answer:
43
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
Identify.
(x + 3)² - 6
x = 4
Step 2: Evaluate
Follow Order of Operations.
Substitute in x [Equation]: (4 + 3)² - 6(Parenthesis) Add: 7² - 6Exponents: 49 - 6Subtract: 43Answer:
43
Step-by-step explanation:
Assuming you meant "evaluate x+3 squared - 6 when x = 4, we get:
(x + 3)^2 - 6
Substituting 4 for x, we get 7^2 - 6, or 43.
really dont understand can someone help me
Answers
Answer: 30.25 cm2.
Step-by-step explanation:
Given: Perimeter of a square = 22 cm.
Concept used: Area of a square = side2 Perimeter of a square = 4 × side.
Calculations: Let the side of the square be 'a' Perimeter of a square = 22 cm. ⇒ 4a = 22. ⇒ a = 5.5 cm. ...
∴ Area of square is 30.25 cm2.
Find all possible values of a such that ax² + (2a + 2)x + a + 3 = 0 has two roots and the distance between them on the number line is greater than 1.
Answers
Answer:
\(-2\sqrt{2}-2 < a < 2\sqrt{2}-2,\;\;a\neq0\)
Step-by-step explanation:
Given quadratic equation:
\(ax^2 + (2a + 2)x + a + 3 = 0\)
To find the possible values of "a" such that the given equation has two roots and the distance between them on the number line is greater than 1, use the quadratic formula.
\(\boxed{\begin{minipage}{4 cm}\underline{Quadratic Formula}\\\\$x=\dfrac{-b \pm \sqrt{b^2-4ac}}{2a}$\\\\when $ax^2+bx+c=0$ \\\end{minipage}}\)
Comparing the coefficients:
\(a = a\)\(b = (2a + 2)\)\(c = (a + 3)\)Substitute the coefficients into the quadratic formula:
\(x=\dfrac{-(2a+2) \pm \sqrt{(2a+2)^2-4a(a + 3)}}{2a}\)
Simplify the discriminant (the part under the square root sign):
\(x=\dfrac{-(2a+2) \pm \sqrt{-4a+4}}{2a}\)
Factor out 4 from the discriminant:
\(x=\dfrac{-(2a+2) \pm \sqrt{4(-a+1)}}{2a}\)
\(\textsf{Apply the radical rule:} \quad \sqrt{ab}=\sqrt{a}\sqrt{b}\)
\(x=\dfrac{-(2a+2) \pm \sqrt{4}\sqrt{-a+1}}{2a}\)
Therefore:
\(x=\dfrac{-(2a+2) \pm 2\sqrt{-a+1}}{2a}\)
Factor out the common term 2:
\(x=\dfrac{-(a+1)\pm \sqrt{-a+1}}{a}\)
Therefore, the two solutions are:
\(x=\dfrac{-a-1+\sqrt{-a+1}}{a},\;\;x=-\dfrac{a+1+\sqrt{-a+1}}{a}\)
As both solutions have "a" as their denominator, a ≠ 0.
Note: When substituting a = 0 into the original equation, we are left with a linear equation, which only has one root. Therefore, this confirms that a ≠ 0.
Now we have found expressions for the two roots, we can set the distance between them to greater than 1:
\(\dfrac{-a-1+\sqrt{-a+1}}{a}-\left(-\dfrac{a+1+\sqrt{-a+1}}{a}\right) > \:1\)
\(\dfrac{-a-1+\sqrt{-a+1}}{a}+\dfrac{a+1+\sqrt{-a+1}}{a} > \:1\)
Simplify:
\(\begin{aligned}\dfrac{-a-1+\sqrt{-a+1}+a+1+\sqrt{-a+1}}{a}& > 1\\\\\dfrac{2\sqrt{-a+1}}{a}& > 1\\\\2\sqrt{-a+1}& > a\\\\(2\sqrt{-a+1})^2& > a^2\\\\4(-a+1)& > a^2\\\\-4a+4& > a^2\\\\a^2+4a-4& < 0\\\\(a+2)^2-8& < 0\\\\(a+2)^2& < 8\end{aligned}\)
\(\textsf{For\;\;$u^n < a$,\;\;if\;$n$\;is\;even\;then\;\;$-\sqrt[n]{a} < u < \sqrt[n]{a}|$:}\)
\(-\sqrt{8} < a+2 < \sqrt{8}\)
Therefore:
\(-\sqrt{8} -2 < a < \sqrt{8}-2\)
\(-2\sqrt{2}-2 < a < 2\sqrt{2}-2\)
So the possible values of "a" such that ax² + (2a + 2)x + a + 3 = 0 has two roots and the distance between them on the number line is greater than 1 are:
\(\large{\boxed{-2\sqrt{2}-2 < a < 2\sqrt{2}-2,\;\;a\neq0}\)
Please please please help me I’m in honors math so our teacher makes us show our work
Answers
Answer:
You didn't put the question
Step-by-step explanation:
(will edit when the question is fixed)
Answer:
what is the question?
Step-by-step explanation:
Jennifer jogged 4 miles
every day to train for a
race. How many miles did
she run in 8 days? Show
the constant rate of
change on the graph
included on your answer
document to prove your
answer.
Answers
Answer:
32 miles is the answer for everyday over to the right 1 on the graph it should move up 4 so a point would be(2,16) and (3,24)