Answer:
Step-by-step explanation:
x2−y=2,2x−y=−1
4x+4y=1,6x−y=1
x+2y=4,x−y=−3
Pls help me
The diameter of a circle is 12 cm. Find its area in terms of \piπ.
PLS FOLLOW THE RULES
TROLL FOR POINTS= REPORT
FIRST AND CORRECT ANSWER= BRAINLIEST
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#2
Answer:
113.1
Step-by-step explanation:
Simplify the expressions by combining like terms
1/2h + 2h + 3/2h - 1
Answer:
4h-1
Step-by-step explanation:
h/2 +2h/1 +3h/2-1
h/2+4h/2+3h/2-1
(h+4h+3h)/2 -1
8h/2 -1
4h-1
I hope this helps :)
Let me know if you need any explanations
Plot (−3 1/2, −1 1/4) on the coordinate plane.
What property is being shown? 3 + x + b= 3 + b + x
a. Associative
b. Commutative
c. Symmetric
Answer:
B. Commutative
Step-by-step explanation:
Commutative The order in which the operands are taken does not affect their image under the operation.
I belive this is the answer!
Hope this Helps!! :))
Answer:
B. Commutative
Step-by-step explanation:
Pls help me with maths. Attachment below.
Answer:
First is zero slope
Second is negative slope
Thirs is positive slope
Step-by-step explanation:
Answer:
1. Zero Slope
2. Negative Slope
3. Positive Slope
Step-by-step explanation:
Please help me!!!!!!
Answer:
the answer is D, 15
Step-by-step explanation:
multiply to find the lcm!
(please pick as brainlyist!)
Answer:
D. 15
Step-by-step explanation:
if u are adding 5 and adding 3 then it will be 15
Please help thank you!
Answer:
18/(10-7)+2=8
(48/2)-4^2 +2*2=12
I hope you have a nice day!
Hannah's hair was 18 inches long .Three years later it was 33 inches long. What was the percent increase,to the nearest hundredth, of Hannah's hair length?
Answer:
54%
Step-by-step explanation:
if you take 18 and divide it by 33 you would get 54
The 83.33 percent increase in Hannah's hair length.
What is the meaning of percentage?A percentage is a number or ratio expressed as a fraction of 100.
Hannah's hair was 18 inches long
After three years,
it was 33 inches long
[tex]Difference\ (increase\ in\ length) = 33-18=15\ inches[/tex]
[tex]percent\ increase = \dfrac{Increase}{Original\ Number}\times100=\dfrac{15}{18}\times100=83.3333\\\\percent\ increase = 83.33 (nearest\ hundredth)[/tex]
Hence 83.33 % increase in Hannah's hair length after three years.
learn more about percentages:
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Petra invested $6,000 at 6.5% simple interest for 3 years. Martin invested $6,000 at
5% for 42 months. Who had more money at the end of their investments and by how much?
The measures of the angles of a triangle are shown in the figure below. Find the measure of the smallest angle.
(2x+18)°
55°
(4x+11)°
Answer:
(2x+18) degrees
Step-by-step explanation:
A triangle is a total of 180 degrees, so you would do:
(2x+18)+55+(4x+11)=180
(2x+4x)+(18+55+11)=180 <- take out parentheses and add like terms
6x+84=180 <- subtract 84 from both sides of the equation
6x=96 <- divide 6 from each side
x=16
Now that you know what x is you would plug it into each of the angles
Angle 1: 2x+18 --> 2(16)+18= 32+18= 50
Angle 2: 55
Angle 3: 4x+11 --> 4(16)+18= 64+18= 82
Then out of these three angles of the triangle, angle 1 (2x+18) would be the smallest.
A tank can hold a maximum of 400 gallons of water. The volume of water when pumping water into the tank can be determined by the function f (m) = 12.5m + 25 where m is the number of minutes that the pump is running and f(m) is the volume of gallons of water in the tank. If the tank must maintain a minimum of 25 gallons of water, which inequality represents the domain of this situation?
(Hint: The variable f(m) is like "y" and m is like "x")
0 < m < 400
30 < m < 400
25 < m < 400
0 < m < 30
Inequalities help us to compare two unequal expressions. The inequality that represents the domain of this situation is 0<m<30.
What are inequalities?Inequalities help us to compare two unequal expressions. Also, it helps us to compare the non-equal expressions so that an equation can be formed.
It is mostly denoted by the symbol <, >, ≤, and ≥.
Given that the volume of the tank should be between 400 gallons of water to 25 gallons of water. While the function of the volume of the water is given as,
f(m) = 12.5m + 25,
Now to know the value of m for which the volume of water in the tank is 400 gallons.
[tex]f(m) = 12.5m + 25\\\\400=12.5+25\\\\375=12.5m\\\\m = 30[/tex]
Also, the value of m for which the volume of the water in the tank is 25 gallons is,
[tex]f(m) = 12.5m + 25\\\\25=12.5+25\\\\0=12.5m\\\\m = 0[/tex]
Hence, the inequality that represents the domain of this situation is 0<m<30.
Learn more about Inequality:
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What is the percent sale for a 2 for 1 deal?
Answer:
A 100% discount.
A 2-for-1 deal means you pay the price of one and you get another one free. One as a percentage is 100%
h + 86.43 = 531.79
h = ___________
Answer:
h=445.36
Step-by-step explanation:
Subtract both sides by 86.46
531.79 - 86.43 = 445.36
Check answer by plugging it back in
445.36 + 86.43 = 531.79
question is in the picture please explain how you got ur answer!
Answer:
1/6
Step-by-step explanation:
Because there are 3 even numbers on a number cube, and if you roll it twice then it would be 6. And there is only one "3" on a number cube. So, the answer is 1/6.
Which of these systems of equations would be best solved using the subtraction method?
I. 2x−7y+3y = 4
−6x−4y = −52
II. 2y = −5x+6x−5
y = 2x−6
III. −7x+3x+2y = 4
4x−6y = −52
Answer:
diagram a has a slope of 4
diagram b has a slope of 1/4
diagram c has a slope of -1/4
Step-by-step explanation:
have a great day :D
help me with this question please
Answer:
I believe the value is 3 or I dont know sorry
Answer:
40.5
Step-by-step explanation:
9*4.5 is 40.5 the shape is getting bigger so you multiply it with the bigger part of the scale factor
Hello!
I need help please...
What is [tex]\sqrt[450]{3,650}[/tex] as a divided.
Make a explanation to this... Do not copy, or go on g.oogle to get the answer to this...
And maybe you can show proof how you got the answer?
Thanks~
Answer: The Answer is in a fraction form
Step-by-step explanation:
9/73
7x+9=2x+39 i need all the steps
Answer:
Step-by-step explanation:
7x+9=2x+39
7x+9-9=2x+39-9
7x=2x+30
7x-2x=2x+30-2x
5x=30
5x/5=x
30/5=6
x=6
Answer:
X=6
Step-by-step explanation:
7x+9=2x+39
First, subtract 9 from both sides like this
7x+9 -9 =2x+39-9
equaling 7x=2x+30
Then, subtract 2 from both sides like this
7x - 2=2x -2+30
equaling 5x=30
Lastly you divide 5 from both sides like this
5x / 5 = 30 / 5
equaling x=6
The price of an item was reduced 25% to $30. What was the original price of the item?
thank you!
Rose wants to buy a toy that costs $14. If she gives the cashier $20, which equation will tell you how much change Rose gets back?
A) x - 14 = 20
B) x + 14 = 20
C) x + 14 = -20
D) x - 14 = -20
Answer:
B) x + 14 = 20
Step-by-step explanation:
A number cube is rolled 24 times. It lands on “2” four times and “6” three times.
Find the experimental probability of landing on a 2 and write as a fractions.
Find the experimental probability of landing on a 6 and write as a fraction.
What would be the theoretical probability of rolling on a 6?
Answer:
Step-by-step explanation:
21
Write an equation for the relationship shown in the table.
Answer:
(0.3/1)x-1.7
Step-by-step explanation:
I used the format mx+b
m= slope
x= x value (usually stays as x when you write an equation and replace it with the x value when solving)
b= y-intercept (in this case when p is zero what is the q value)
y-intercept = -1.7 (in this equation found from the table)
slope= 0.3/1 (the rate it the numbers increase at. q is changing +0.3 each time and p is changing by 1. p (or the x value) goes on top of q (or the y value)) (I found the missing information in between 2 and 5)
hence you have (0.3/1)x-1.7
Answer:
its (0.3/1)x-1.7
Step-by-step explanation:
One market sells a 3-kilogram bag of tortillas for 45 pesos, and the second market sells 2 kilograms of tortillas for 22 pesos.
Which unit price is lower? / Would I subtract 2 kilo from 22 pesos?
Answer:
The second market is cheaper
Step-by-step explanation:
For the first market:
If the 3Kg = 45 pesos
then 1Kg = 15 pesos because you divide it by 3
In the same way for the second market:
2Kg = 22pesos
so 1Kg is 11 pesos as you divide it by 2.
Therefore the second market is cheaper as the unit price is lower.
anyone wanna help me w/ a prank?
ok so you have to have rob lox (my friend who i'm pranking has it so yea)
basically i need someone to fake replace her and pretend i replaced her, shes always been afraid of that.
Dw ill text her right after that it was a prank lol.
Answer:
um sure but first 8/16 simplified to 1/2
Step-by-step explanation: ddon't mind the equation
What is the angle of BGH?
Dr. Wong has a table of data in her veterinary office that shows the average lifespans and weights of several popular dog breeds. Alfonso made a scatterplot of these data for a math project.
Answer the questions to make predictions about the lifespan of a specific breed of dog.
1. Describe the association shown by this scatterplot.
2. Alfonso is thinking of getting a bloodhound. Bloodhounds usually weigh about 90 pounds. Based on the data, estimate for the lifespan of a bloodhound. Explain how you made your estimate.
3. Alfonso's friend Dani tells Alfonso that her bloodhound, Ol' Sniffy, lived to be 14.
Based on what you know, do you think this was because:
1. Alfonso didn't use a good estimation method,
2. Dani doesn't remember Ol' Sniffy's age correctly, or,
3. Ol' Sniffy lived an unusually long time?
Justify your answer.
Answer:
1. The heavier the dogs are, the shorter lifespan they have.
2. The lifespan of a bloodhound is on average 10 years long
3. Number 2
Step-by-step explanation:
#1 explination: Since its obvious that the graph angles downwards as it goes towards the left, and because as you go to the left you get heavier dogs, put 2 and 2 together and you get my answer.
#2 explination: We see 3 dots around 90 pounds, one that lives 11 years, and 2 that live 10 years. Since we need to be accurate, we need to find the average of 10, 11, and 10. (10+10+11)/3=10.33. Now we round to 10, so 10 is our answer.
#3 explination: Since there is a bloodhound that lives to be 14, we have two answers, 2 or 3. 1 doesn't work since if Alfonso doesn't have good estimation, the first two questions wouldn't matter *the more you know*. Since we see no unusual pattern between any of the three dots I mentioned earlier, Dani must of forgotten her dog's age (probably because of that dog years thing.)
Answer:
Person Above is correct.
Step-by-step explanation:
Give them brainliest.
Explain Steps. Do not answer.
#10 and 11
Questions are in the Picture
Answer:
Step-by-step explanation:
For problem 10:
1. AE/ED=AC/CB (Since triangle ABC is similar to triangle ADE, we can determine that the ratio of AE to ED is equal to the ratio of AC to CB)
2. AE/ED=(AE+EC)/CB (Rewrite AC as the sum of the lengths forming it; This is sometimes referred to as the Partition Postulate)
3. 9/x=(9+6)/10 (Substitute the given values into this equation)
4. x=6 (Use algebra to solve for x)
For problem 11:
1. AG/AB=AE/AD (Use the same strategy as step one in problem 10, since the rectangles are similar we can create this equation)
2. AG/(AG+GB)=AE/(AE+ED) (Rewrite sides as the some of their parts)
3. 14/(14+7)=18/(18+x) (Substitute given values)
4. x=9 (Solve for x)
lmk if there are mistakes in my explanation, hope this helps :)
THIS IS #2 PLLZZZ HELP AND TY FOR THE PERSON WHO DID THE FIRST ONE! :)
{ ILL GIVE U BRAINLIST AND A THANK YOU! }
Answer:
I dont know about this one
Step-by-step explanation:
In 2002, heavy rains caused drivers to slow down at the Texas Motor Speedway. This resulted in the slowest race ever in the history of the track. The winning car took 52.5 seconds to travel one lap around the track, which is 2,414 meters long.
Calculate What was the speed of the winning car?
Calculate How much time will it take a race car to do a lap if it is traveling at a speed of 90.0 m/s?
Answer:
45.98m/s, 26.82 seconds
Step-by-step explanation:
simple math, divide the length of the track by the time or speed.
The percentages that several players on a basketball team score of the team's total number of points are shown. Order the values from least (on top) to greatest (on bottom).
1. 0.125
2. 37.5
3. 1/6
4. 2/9
5. 1/9
(You can use 1.-5. to list that way its easier! Thank you!)