help me with proofs please
Answer:
D. Subtraction Property of Equality
Step-by-step explanation:
D. Subtraction Property of Equality
From 6-7, you subtract 132 from both sides. You can only do this because of the subtraction property of equality which essentially means that if you subtract something from one side of the equation, you also have to subtract it from the other side. In this case, you subtract 132 from both sides, therefore it is D.
Use the graph of speed versus time to answer the questions about acceleration.
Which of the cars is speeding up? ______
Which of the cars is slowing down? ______
Which of the cars is maintaining a constant speed? ______
The car that is speeding up is car A.
The car that is slowing down is car C.
The car that is maintaining a constant speed is car B.
What is speed?Speed is the ratio of distance and time.
It shows how fast an object is moving at a given time.
We have,
From the graph, we see that,
Car A speed is increasing with time.
Car B is maintaining a constant speed with time.
Car C is decreasing its speed with time.
Thus,
Car A is speeding up.
Car C is slowing down
Car B is maintaining a constant speed.
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Answer:
Step-by-step explanation:
A carpenter has wood that is 5x+2 feet long. How long is the wood after 2x-5 feet have been cut off. (type in your solution so i can learn from it thanks)
5x+2 - (2x - 5)
= 5x + 2 - 2x + 5
= 3x + 7
I am pretty sure that it is 3x+7
help !! i will give brainliest
Answer:
The y intercept should be 9 and the graph is incorrect.
Beth has 380 pages left to read in her literature book. She has decided to read 40 pages every three days. What is the slope of the
line that represents this function?
Answer:
slope = 1/-13
Step-by-step explanation:
I need help with this
Answer: B
Step-by-step explanation:
We can see that the graph is being compressed, so f(x) is being transformed into f(ax), where 0<a<1.
The only option that satisfies this is y=f(x/2).
Please help I will mark brainliest
Answer:
Hey dude! Im not sure how to figure out the angle on my own so try using math-way algebra it works most of the time!
sorry i cant help any more!
find the radius of cylinder with a volume of 108pi ft3 and height of 12 ft
The volume of a cylinder is the amount of space in it
The radius of the cylinder is 3 feet
How to calculate the radiusThe volume of a cylinder is:
[tex]V = \pi r^2 h[/tex]
Where r represents the radius, and h represents the height
So, we have:
[tex]108\pi = \pi r^2 * 12[/tex]
Divide both sides by 12pi
[tex]9 = r^2[/tex]
Take the square roots of both sides
3 = r
Rewrite as:
r = 3
Hence, the radius of the cylinder is 3 feet
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Choose the correct simplification and demonstration of the closure property given: (3x3 2x2 − 5x) − (8x3 − 2x2). 5x3 2x2 5x; is a polynomial 5x3 2x2 5x; may or may not be a polynomial −5x3 4x2 − 5x; is a polynomial −5x3 4x2 − 5x; may or may not be a polynomial.
The resultant polynomial which is the correct simplification and demonstration of the closure property of give expression is,
[tex]-5x^3 +4x^2- 5x[/tex]
This resultant expression is polynomial.
What is polynomial?Polynomial equations is the expression in which the highest power of the unknown variable is n (n is real number).
The given expression in the problem is,
[tex](3x^3 +2x^2 - 5x) - (8x^3 - 2x^2).[/tex]
Let the resultant polynomial of the above expression is f(x). Therefore,
[tex]f(x)=(3x^3 +2x^2 - 5x) - (8x^3 - 2x^2).[/tex]
To solve the above polynomial, open the bracket by multiplying the sign with inside values as,
[tex]3x^3 +2x^2 - 5x - 8x^3 +2x^2[/tex]
Separate the same power terms of the variables as,
[tex]f(x)=3x^3- 8x^3 +2x^2 +2x^2- 5x\\f(x)=-5x^3 +4x^2- 5x[/tex]
The resultant polynomial which is the correct simplification and demonstration of the closure property of give expression is,
[tex]-5x^3 +4x^2- 5x[/tex]
This resultant expression is polynomial.
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Please help me with the math
Segment EF is tangent to Circle H at Point F and Segment EG is tangent to Circle H at Point G. Determine the value of the variable and the length of Segment EF.
Finding angles , please help
Answer:
m∠C = 43.6°, m∠B = 107.4°, b = 51.2Step-by-step explanation:
Use the law of sines:
a / sin ∠A = c / sin ∠C26 / sin 29° = 37 / sin ∠Csin ∠C = 37 sin 29° / 26sin ∠C = 0.6899m∠C = arcsin 0.6899m∠C = 43.6°Find the missing angle:
m∠B = 180° - 29° - 43.6° = 107.4° (rounded)Use the law of sines to find the length of b:
a / sin ∠A = b / sin ∠B26 / sin 29° = b / sin 107.4°b = 26 sin 107.4° / sin 29°b = 51.2 units (rounded)Plz help! Due tonight!
Recycled CDs, Incorporated, offers a choice of 5 used CDs for $20, with each additional CD costing $6. Write a cost function for purchasing 5 or more CDs. What will the cost of buying 9 CDs be? Let x represent the number of CDs over 5.
the answer will be
48$ dollars
Answer:
20 + 6x
$44
Step-by-step explanation:
So 5 CD's for 20 dollars is $4 ea. then each one added will be +6 with the variable (x).
so you can't have the first 5 becuase x is used for every one OVER 5.
So
$ or price = 20 + 6x
plug 4 in because 9-5 = 4
20 + 6(4)
20 + 24
$44
Which data set does the box-and-whisker plot represent?
Answer:
2nd choice
Step-by-step explanation:
Can I have some help?
But needs to be shown with work!
Answer:
9) y=(-6-3x)/2 10) y=(2x+15)/3 11) y=8+4x
12) y=1/2x+6 13) y= (8-3x)/-4 14) y= (10-6x)/-2
Step-by-step explanation:
The methods I used are known as float and ping, and escalator:
9) We can float the 3x to the other side to make
2y=-6-3x
We now escalate the 2 down to make:
y= [tex]\frac{-6-3x}{2}[/tex]
10) We simply escalate the 3 down to give:
y= [tex]\frac{2x+15}{3}[/tex]
11) We simply float the -4x to the other side:
y=8+4x
12) For this question, it will be better to expand the bracket first:
y-8=-1/2x-2
Now we float the -8 to the other side to give:
y=-1/2x-2+8
Which can be simplified to give:
y=1/2x+6
13) We simply float the 3x to the other side to give:
-4y=8-3x
Now we escalate the -4 down to give:
y= [tex]\frac{(8-3x)}{-4}[/tex]
14) We float the 6x to the other side to give:
-2y=10-6x
Now we escalate the -2 down to give:
y= [tex]\frac{10-6x}{-2}[/tex]
The area of this polygon is 228 square meters
What is the length of the side labeled with a question mark
Enter your answer in the box
Answer: 7
Step-by-step explanation:
Let the unknown length be x
Cut the polygon into 2 pieces
6 * 24 + x * (18 - 6) = 228
144 + 12x = 228
12x = 84
x = 7
The length of the side labeled with a question mark in the given polygon is 7 meters.
What is area?Area is the amount of space occupied by a two-dimensional figure. In other words, it is the quantity that measures the number of unit squares that cover the surface of a closed figure. The standard unit of area is square units which is generally represented as square inches, square feet, etc.
Given that, the area of this polygon is 228 square meters.
We know that, the area of a rectangle is Length×Breadth
Area of a large rectangle = 24×6
= 144 square meters
Let the length of unknown side be x.
Area of a small rectangle = 12×x
Total area = Area of a large rectangle+Area of a small rectangle
228=144+12x
12x=228-144
12x=84
x=84/12
x=7 meters
Therefore, the length of the side labeled with a question mark is 7 meters.
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3rd time posting this question first time was 2 hours ago, someone please help
Answer:
What math level is this?
6x - ? = x
whats the answer
Answer:
5x
Step-by-step explanation:
6x - ? = x
? = 6x - x
? = 5x
Hope it helps ⚜
[tex]6x - ? = x\\-?=x - 6x\\-?=-5x\\\Longrightarrow \: \: ?=5x[/tex]
[tex]\heartsuit \: \sf\: Jenkai \: \bigstar[/tex]
1. The table shows the prices of 3 boxes of laundry detergent of different sizes. Which size box costs the least per ounce? Explain your answer. Size Price 150 OZ 100 oz $18.97 $11.97 $8.97 56 OZ
The table is an illustration of unit rates
Box 2 has the least price per ounce
How to determine the least per ounce
The given parameters are:
Box 1 = $18.97 per 150 Oz
Box 2 = $11.97 per 100 Oz
Box 3 = $8.97 per 56 Oz
Divide the price by the sizes, to get the rates
[tex]Box 1 = \frac{18.97}{150} =0.126}[/tex]
[tex]Box 2 = \frac{11.97}{100} =0.1197}[/tex]
[tex]Box 3 = \frac{8.97}{56} =0.160[/tex]
By comparison, 0.1197 is the least
Hence, box 2 has the least price per ounce
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can you help me solve A=p+prt for R
Answer:
[tex]r=\frac{a-p}{pt}[/tex]
Step-by-step explanation:
Solve [tex]a=p+prt:[/tex]
[tex]r=\frac{a-p}{pt}[/tex]
I need this question answered
Answer:
-40
Step-by-step explanation:
HOPE THIS HELPS BRAINLIST
)) A cylinder has a height of 9 meters and a diameter of 34 meters. What is its volume?
Use a = 3.14 and round your answer to the nearest hundredth.
Answer:
Volume of a sphere is (pi)*(r^2)*(h), where r is raduis, h is height, and pi is 3.14.
Diameter is 24/2 = 12
We just need to plug everything in.
(3.14)*(12^2)*(14) = 6330.24
I hope this helped. :)))
=^._.^=
Please I need help with this problem
Step-by-step explanation:
First problem looks right. Although he started with 145, not 25. Savings and checking combined is the total amount of cash he had before he started working, which is why it's added to the total amount of money he has.
He saves 55 every week. because the multiplier on w, which is weeks is 55. So for every week 55 is added to the multiplication. Ex 2 weeks is 110, 3 is 165, 4 is 220 etc..
He wanted a total of 650 usd. Doesn't matter where it is the total is what matters. Doesn't matetr if hes spending, storing or even burning the money..
So first make 55w+145=650 then solve
Minus 145 from both sides
55w = 505
About 9 weeks one day and 6 hours. This is a rough estimate since the answer is 9.18181818 weeks.
:>) The senior class at Wildgrove High School is graduating. The number of students
receiving diplomas dictates the duration of the graduation ceremony.
)) s = the number of students receiving diplomas
d = the duration of the graduation ceremony
=
)) Which of the variables is independent and which is dependent?
1)
s is the independent variable and d is the dependent
variable
d is the independent variable and s is the dependent
variable
Submit
Answer:
s is the independent variable and d is the dependent variable.
Step-by-step explanation:
--------- :)
In ∆ABC, if <A = 55° and <B = 65°, then = <C=
<A+<B+<C=180(sum of triangle)
55+65+<C=180
120+<C=180
<C=60
Enter answer as a decimal ex: 42.53
Answer:
The probability of pulling a green marble is 0.58 (58%).
Step-by-step explanation:
Total marbles: 36
Purple marbles: 15Green marbles: 21[tex]\frac{21}{36} = 0.58[/tex]
Line m passes through points (10, 4) and (1, 6). Line n passes through points (1, 11) and (10, 9). Are line m and line n parallel or perpendicular
Answer:
Parallel
Step-by-step explanation:
Answer:
parallel
Step-by-step explanation:
Diane flipped a coin 600 times and it landed heads up 240 times. What is the relative frequency of the coin landing heads up based on the results of this experiment?
4%
6%
40%
60%
Answer:
40%
Step-by-step explanation:
Flips 600 times, that's the total flips. ###/600
Heads flipped 240 times, and that's what you're looking for. 240/600
240/600 simplified is 2/5 (0.4)
You're looking for a frequency/percentage so you're looking at the decimal
Decimal number = Percentage
So it'll be 40%
Select the equivalent expression.
Answer:
c
Step-by-step explanation:
the exponent 5 is multiplied by 4 then the other exponent 2 is also multiplied by 4
Answer:
C
Step-by-step explanation:
using the rule of exponents
[tex](a^{m})^n[/tex] = [tex]a^{mn}[/tex]
[tex](\frac{2^{5} }{x^2})^4[/tex]
= [tex]\frac{2^{5(4)} }{x^{2(4)} }[/tex]
= [tex]\frac{2^{20} }{x^{8} }[/tex] → C
A right triangle is shown with a base of 6 cm and a height of 14 cm, what is the area in square cm of the right triangle
Answer:
42 square cm
Step-by-step explanation:
6 x 14 = 84. 84 divided by 2 = 42.
a = b x h divided by 2