Answers
Answer:
The answer is c and e :D Step-by-step explanation:
Answer: C, E
Step-by-step explanation:
Related Questions
3x^2+ 4x + 5 for x = -2
Answers
3(-2)^2+4(-2)+5
-6^2+ (-8) + 5
36 + (-8) + 5
28+5
33
The company plans to have the tanks painted after they are installed. Describe the effect that doubling the diameter has on the amount of paint needed to paint the tanks. What happens when the diameter is increased by a factor of 3?
Answers
Answer:
The effect of doubling the diameter is increased the area to paint as 4 times. So, paint needed is 4 times than it was before. And the area is increased by 9 times when the diameter is increased by a factor of 3. So, paint needed is 9 times than before.
Step-by-step explanation:
Please remember the concept
If side lengths are in the ratio a : b
Then the area are in the ratio of a^2 :b^2
The volume are in the ratio of a^3 :b^3,
When diameter is doubled, the area ratio becomes [tex]x^{2} :(2x)^{2}[/tex] which is simplified to [tex]x^{2} :4x^{2}[/tex]
So, the area is increased by 4 times.
According to this concept , the diameter is increased by the scale factor 3.
Let the diameter of tank is 'x', so the diameter becomes "3x"
So, it's area ratio would be [tex]x^{2} :(3x)^{2}[/tex]
If we simplify it we get [tex]x^{2} :9x^{2}[/tex]
We conclude that area to be increased by 9 times.
An architect is using the scale 10 feet = 1 inch. If the actual length of the room 65 feet, what will be the length of the scaled copy?
Answers
Answer:
6.5 inches
Step-by-step explanation:
you would divide 65 by 10 feet to get the answer in inches which is 6.5
the slope and y intercept of y=-8x
Answers
Answer:
m = -8
b = 0
Step-by-step explanation:
In slope intercept form [ y = mx + b ], m = slope and b = y-intercept.
We aren't given a b value, but we are given a m value which is -8.
Best of Luck!
The side lengths of a rectangular room are 10 ft and 24 ft. The room is going to be split in half along the hypotenuse of a
triangle using string. Find the length of the piece of string needed.
Answers
40ft hope I helped with your problem! Have a great day my comrade
The cost for an order of 100 kilograms of steel bars is $230. The cost for an order of 150 kilograms of steel bars is $320. Write an equation for the cost of an order of steel bars (y) in terms of the weight of steel bars ordered (x). Show or explain how you found your equation.
Answers
Answer:
y = 9x/5 + 50
Step-by-step explanation:
We are represent the information as coordinate (x,y)
If the cost for an order of 100 kilograms of steel bars is $230, this is expressed as (100, 230)
Also if the cost for an order of 150 kilograms of steel bars is $320, this is expressed as;
(150, 320)
Find the equation of a line passing through the points. The standard form of the equation is expressed as y = mx+c
m is the slope
c is the intercept
Get the slope;
m = y2-y1/x2-x1
m = 320-230/150-100
m = 90/50
m = 9/5
Get the y-intercept by substituting m = 9/5 and any point say (100, 230) into the expression y = mx+c
230 = 9/5(100)+c
230 = 9(20)+c
230 = 180 + c
c = 230-180
c = 50
Get the required equation
y = mx+c
y = 9/5 x + 50
Hence an equation for the cost of an order of steel bars (y) in terms of the weight of steel bars ordered (x) is y = 9x/5 + 50
If JKLM is a rectangle, JL = 2x + 5, and MK = 7x – 40, find MK
Answers
Answer:
MK = 23
Step-by-step explanation:
Rectangle means that the angles are all 90 degrees, so all the sides are not tilted in any direction. Meaning the JL = MK, therefore:
2x + 5 = 7x - 40
subtract 5 from both sides
2x = 7x - 45
subtract 7x from both sides
-5x = -45
divide by -5
x = 9
Now input 9 into the equation
MK = 7(9) - 40 = 63 - 40 = 23
The value of MK is 23.
We would need to apply our knowledge of the property of rectangles to solve the given problem.Recall:The diagonals of a rectangle that intersect each other are equal (a property of a rectangle).
Thus:[tex]JL = 2x + 5 $ (given)\\\\MK = 7x - 40 $ (given)[/tex]
Therefore:
[tex]JL = MK[/tex] (diagonals of rectangle JKLM)Substitute[tex]2x + 5 = 7x - 40[/tex]
Collect like terms[tex]2x -7x = -5-40\\\\-5x = -45[/tex]
Divide both sides by -9[tex]x = 9[/tex]
Find [tex]MK[/tex]:[tex]MK = 7x - 40[/tex]
Plug in the value of x[tex]MK = 7(9) - 40\\\\MK = 63 - 40\\\\MK = 23[/tex]
Therefore, the value of MK is 23.Learn more here:
https://brainly.com/question/1675446
-6(x-3)
pls help me....
Answers
Answer:
−6x+18
Step-by-step explanation:
-6(x-3)
(−6)(x+−3)
=(−6)(x)+(−6)(−3)
=−6x+18
Answer:
18 - 6x
Step-by-step explanation:
According to the distributive property:
-6(x-3) =
-6*x + -6*-3 =
-6x + 18
1.
Mark translated trapezoid A B C D to trapezoid A prime B prime C prime D prime Vertex B was at (4, 3) . If B prime is now at (-2, 2) , what did he have to do to get there?
move 6 units left and 1 down
move 2 units down and 1 left
move 6 units down and 1 up
move 5 units right and 6 left
Answers
Marcus has earned 353 out of 400 points in Math class. What grade did Marcus make in his math class? (Round grade to the nearest tenth of a percent)
Answers
Answer:
an 88.25
Step-by-step explanation:
well 88%
Find the answer to 12.6 x 3.9?
Answers
The correct answer is 49.14.
Hope this helps!!
Brainliest?
Answer: 49.14
Step-by-step explanation: All you have to do is multiply the two and then you get 49.14 12.6 X 3.9=49.14
HOPE THIS HELPED, IF THIS IS NOT WHAT YOU WERE LOOKING FOR THEN I AM SORRY FOR WASTING AND ANSWER! IF CORRECT THEN YOU ARE WELCOME FOR THE HELP! :)
HAVE A NICE DAY!!! :D
Write a function for the following table
X. Y
-1. -4
0. -2
1. -1
2. -0.5
Please help I only have 20 minutes
Answers
Answer: x+1 = y/2
Step-by-step explanation:
X is increasing by 1
(Adding 1 to each number)
For Y, divide it by 2
-4/2 = -2
-2/2 = -1, etc.
I NEED HELP PLS!! i am so confused on what to do if you can explain that would be awesome!
Answers
Answer:I am pretty sure that it is that you add 26 and 71 and then subtract it by 180 and then the other one is across so it would be the same answer so it would be 83
Step-by-step explanation: I hope this helped
through: (-3, -4) and (2, 1)
Answers
Answer:
y = 1x - 1
Step-by-step explanation:
[tex]\frac{y2-y1}{x2-x1}\\\frac{1-(-4)}{2-(-3)}\\\frac{1+4}{2+3}\\\frac{5}{5}=1\\y=1x+b\\1=1(2)+b\\1 = 2 + b\\-1 = b\\y = 1x-1[/tex]
1. What do you need to show in order to prove that a number is divisible by 3?
Then, use an example to show your explanation is correct. *
Answers
Answer:
You can divide and see if its devided by 3, and if its not in the times table, you will have a decimal
Step-by-step explanation:
♦Will mark brainliest♦
A zoologist is recording the loss of wolves in her state. She notes the number of wolves, w, in the state on January 1. One year later, there were 84 wolves in the state, which is 23 fewer wolves than were in the state a year earlier. What is the number of wolves in the state on January 1? Which equation can be used to find the number of wolves in the state on January 1?
w−84=−23
w + 23 = 84
w−23=84
23−w=84
For those who know this answer and did not get to copy the link below and paste it into search bar thanks have a wonderful day
https://brainly.com/question/20143416
Answers
Answer:
3.
Step-by-step explanation:
The wolves from the previous year minus 23 is 84.
Jamar spent $5.60 on 5 bags of Doritos The neighborhood store. how much did each bag of chips cost?
Answers
Answer:
5!60
Step-by-step explanation:
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Hunt ye dzkpksnsnjfnngfhnf l dk h TL hhsinp
why the fudge is that the earths solar system connects to the outer route of the satellite that leads down to 5g incorporated electricians resolve to inside ur mum
Answers
Answer:
the answer is not my mom but to yours .
Find the equation in slope-intercept form that describes each line.
a line with slope –2 and y-intercept 4
A. y = –2x
B. y = 2x – 4
C. y = –2x + 4
D. y = 4x – 2
Answers
Explanation:
Evaluate: 461 ÷ 10 to the third power
Answers
Answer:
461 divided by 10^3 is 0.461.
Step-by-step explanation:
Hope this helps and I hope u have an Amazing day!!
a college spends 40% of an individual's tuition on salaries and the remainder on other costs if they spend 1,800 on other costs how much is an individual's tuition?
Answers
Answer:
$3000
Step-by-step explanation:
If the remainder is spent on other costs, then that means 60% of the tuition as spent on other costs.
To find the total tuition, divide 1800 by 0.6:
1800/0.6
= 3000
So, their tuition was $3000
i will love uu forever if uu answer dis for me
Answers
#15 is 11 and
#16 is adding 3
Answer:
the answer is 2...........jpjpjp ion knowwwwwwwww
Step-by-step explanation:
Please help due in 9 minutes
Answers
Answer:
the ans is 5 I think only
Carí is searching onlíne for airline tickets. Two weeks ago, the cost to fly from Denver to Orlando was
S220. Now the cost is $315. What is the percent increase? What would be the percent íncrease if the
airline charges an additional $50 baggage fee with the new ticket price?
The percent increase of the airline ticket is
(Round to the nearest percent as needed.)
%.
Answers
Answer:
For the first question, the answer would be 43.2%; if you want to round further, it would be 43%.
For the second question, the answer would be 65.9%; if you want to round further, it would be 66%.
Step-by-step explanation:
1st question:
315/220 = 1.4318181....
1.4318*100 = 143.18
143.18 - 100 = 43.18
2nd question:
315 + 50 = 365
365/220 = 1.659090....
1.6590*100 = 165.90
165.90 - 100 = 65.90
If a factory can produce 25,000 gears in 1 day, how many gears will it produce in 3 days?
Answers
Answer:
75,000 gears
Step-by-step explanation:
Find the measure of angle A.
Please help??
Answers
Answer:
4
Step-by-step explanation:
Answer:
Creo que es 40
Step-by-step explanation:
80+15x+(11x-4)=180
26x=104
x=4
Entonces
11x-4 --> 11*4-4 = 40
3. Use the distributive property to express 64 + 24. *
Answers
Answer: 8(8+3)
Step-by-step explanation:
64 + 24 is the same as 8*8 + 8*3. Therefore you can "pull out" the 8 and that is your answer
help me plz guys for 14 point
Answers
Please help for the whole section i really need this answer am failing my math class
Answers
yoo plz help with these 2 questions
using algebra to solve for missing in a formula
Answers
Answer:radius is 6,height is 4
Step-by-step explanation: