Answers
Answer:
FOR NUMBER 1
1. angleAED = 7x-40 and angleBEC= 3x + 40; given
2. 7x-40=3x+40; vertical angles are congruent
3. 4x-40=40; addition property of equality
4. 4x=80; addition property of equality
5. x = 20; division property of equaliy
FOR NUMBER 2
1. angle CED=2X+30 and angleAED=5x-46; given
2. Angle aed and angle ced are supplementary; assumed from diagram
3. 2x+30+5x-46=180; supplementary angles add upto 180
4. 7x-16=180;substitution (simplification of like terms)
5. 7x=196; addition property of equality
6. X=28; division property of equality
FOR NUMBER 3
1. angleBEC=4x-30 and angle BEA =2x ; given
2. angle bec and angle bea are supplementary; assumed from diagram
3. bec+bea = 180; definition of supplementary angles
4. 4x-30+2x=180; substitution
5. 6x=210; addition property of equality
6. X = 35; division property of equality
Step-by-step explanation:
Related Questions
Simplify:
25x - 6X - 18x + 7
Answers
Answer:
x+7
Step-by-step explanation:
25x - 6x - 18x + 7
x + 7
Please helppp!!!!!!! And please show your work so i can know what to do next time i have this same problem !
Answers
Answer: The answer is $152.25
Step-by-step explanation:
First you multiply 0.07 by 163.71 to get 11.4597.
The you subtract 163.71 from 11.4597.
Then that's your answer. I hope this helped!
The average persons stride length
Answers
Answer:
5 feet/ 60 inches
hope this helps :)
A 12 ounce starbucks latte costs $3.36. What is the constant of proportionality that relates the codt in dollars,y,to the number of ounces,x,in a starbucks latte?
Answers
Answer:0.28
Step-by-step explanation:
3.36÷12= 0.28
The constant of proportionality is 0.28 dollars per pounds.
An equation is used to show the relationship between two or more numbers and variables.
Let y represent the cost in dollars for x number of ounces.
Since y is proportional to x, hence it van be represented by:
y = kx
where k is the constant of proportionality.
Given that:
A 12 ounce starbucks latte costs $3.36. Therefore:
3.36 = 12k
k = 0.28
The constant of proportionality is 0.28 dollars per pounds.
Find out more on proportionality at:https://brainly.com/question/24868934
If ab = 2, bc = 6 and ca = 3 then find the value of a.
Answers
Answer:
a = 1
Step-by-step explanation:
and this is because is if bc=6 and the numbers 2 and 3 themselves = 6 it wouldn’t be possible for a to be any other number without the outputs being different
2) Mr. Riley dove off a cliff that was 30 feet above the surface of the water and descended a total of 100 feet. Which of the equations below can be used to determine his elevation at the bottom of his dive?
a) 30 + 100
b) 30-100
C) 30 + (-100)
d) Both b and c
Answers
Answer:
B
Step-by-step explanation:
Mr.Riley was 30 feet above the water, which means he is at +30 above sea level. If he descends 100 feet, that means he goes 100 feet lower then that. 30 - 100 is equal to -70. He is 70 feet under water after he dived. You do not need to know the answer, but it helps to visualize the problem you have, therefore, finding the answer
a shopkeeper bought 12pencil for rs16.how much he sell one pencil to gain 50percent
Answers
Answer:
1 dozen pen = 13
so
Step-by-step explanation:
i think 16/12 * 50 =66.66
for one pen = 66.66/100 I am not sure
Answer:
Rs 2
Step-by-step explanation:
12 pencils = Rs 16
50% profit on Rs 16 = 50/100 × 16 = 8
selling price = 16 + 8 = 24
cost of 1 pencil = 24/12 = Rs 2
What is the value of the expression below when z=9
Answers
Jenny has three times as much money as Peter. Together they have $44. How much do they each have
Answers
Answer:
33 & 11
Step-by-step explanation:
33+11=44
Answer:
jen has 33, Peter has 11
Step-by-step explanation:
j + p = 44 and
j = 3p
substitute j
3p + p= 44
4p + p=44
p = 44/4
p=11
j + 11 = 44
j = 44 - 11
j= 33
Vivian earned $540 last month. She saved 30% of this money. How much did she save?
%
Answers
Answer:
$162.00
Step-by-step explanation:
$540.00 x.30 =$162.00
Uno de los problemas ambientales es la escasez de agua. Para proveer de agua a una comunidad, se necesitan 3846 metros de tubería, y cada tubo mide 6 metros de largo. ¿Cuántos tubos se necesitan?
Porfa respondanme con la operacion pls
Answers
Responder:
Explicación paso a paso:
Dado el total de tubería necesaria = 3846 m
Longitud de cada tubo = 6 m
Cantidad de tubería necesaria = tubería total / longitud de cada tubo
Cantidad de tubería necesaria = 3846/6
Cantidad de tubería necesaria = 641
Por lo tanto, la cantidad de tubería necesaria será de 641 tuberías.
On 31 August 2018,Musk Traders purchased a machine on credit for a cost price of R402 500(including VAt at 15%). Machinery is depreciation over six years according to the straight - line basis and there is no residual value on this machine, as it is highly specialized. Musk traders has a 30 June year-end
Calculate the depreciation and accumulated depreciation for 2019 and 2020.
Answers
Answer:
Depreciation should be on a value net of VAT.
Cost + (Cost * VAT) = 402,500
Cost + Cost * 15% = 402,500
1.15 * Cost = 402,500
Cost = $350,000
Depreciation is straight line for 6 years so per year is = 350,000/6 = $58,333
2019
In 2019 the June year end from date of purchase will be 10 months.
Depreciation in 2019
= Yearly depreciation * 10/12 months
= 58,333 * 10/12
= $48,611
Accumulated Depreciation 2019
= $48,611
2020
2020 will be a complete year so depreciation
= $58,333
Accumulated Depreciation 2020
= 2019 + 2020
= 48,611 + 58,333
= $106,944
Write down the whole numbers less than 5?
Answers
Answer:
1,2,3,4 and all the negitive numbers but I do not think they need negitive
Step-by-step explanation:
Whole numbers are numbers that do not have decimals or fractions
Please help if you know how to do this, thanks
Answers
Answer:
6) see https://brainly.com/question/18513777
7) y = 0x^2 +3x -7; (A, B, C) = (0, 3, -7); a linear equation
8) p ≈ -0.213312t^2 +2.08483t +22.9624; p(11) ≈ 20.08; between 20,000 and 20500
Step-by-step explanation:
7) The result of using a graphing calculator to find a quadratic model for the given points is shown in the first attachment. The equation is ...
y = 0x^2 +3x -7 . . . . . A, B, C = 0, 3, -7
The A coefficient of 0 tells you this is a linear equation.
__
8) The quadratic regression model* found by my graphing calculator is ...
p ≈ -0.213312t^2 +2.08483t +22.9624
The "work" is shown in the second attachment. (Apparently, you have a regression tool you're supposed to use.)
Evaluating this equation for t=11 (corresponding to 11 years after 1996), we find ...
p = (-0.213312·11 +2.08483)·11 +22.9624 = -0.261602·11 +22.9624
p ≈ 20.084778 ≈ 20.08 . . . . thousands
The population in 2007 is between 20,000 and 20,500.
_____
* We're not sure exactly what is supposed to be rounded to 2 decimal places. Error tends to creep up if the quadratic coefficients are rounded to 2 decimal places, but you may be expected to enter your answer that way.
The population in thousands is "between 20 and 21" when rounded to 2 decimal places. It makes no sense to compute the population (in people) as 20,084.78, rounded to 2 decimal places. We have chosen 20,000-20,500 as the answer to the question about population in 2007, because the question doesn't ask for thousands.
G(x)=x^3+x^2-x-2 , which expression represents g(3n)
Answers
What is the circumference of the circle
below?
52 yd
A 254.18 yd
B 387 yd
C 199.3 yd
D 163.28 yd
Answers
Answer:
D) 163.28 yd
Step-by-step explanation:
to get the circumference, the equation is 2(π * radius)
52 is the diameter, and half of a diameter is the radius.
so the radius of your circle is 26.
now put that into the equation and you get 2(26π), or 52π
pi is infinite, but you can actually get away with multiplying 52 by 3.14, which gives you the approximate answer.
52 * 3.14 = 163.28
so your answer is D) 163.28 yd
Urgently need help please
Answers
Answer:
17280
Step-by-step explanation:
Answer: 324
Step-by-step explanation:
8 x 6 x 3 = 144
10 x 6 x 3 =180
180 + 144 = 324
I can add more info if you are still having trouble :)
how do i check 5p +2 = 4p - 1
Answers
Answer:-3
Step-by-step explanation:
Answer:
p = -3
Step-by-step explanation:
5p + 2 = 4p - 1
-4p -2 -4p -2
p = -3
Reflect triangle across the x-axis. What are the coordinates of B'?
у
C
A
Pre-image
Image
Final Image
A(-5,6)
=(-5.-6)
A =(2,-6)
B
B
с
Rule:
(4.-3)
O (4,3)
O(-4,-3)
Answers
Answer:
O (-4,-3) is the answer
Can someone please help me with this
Answers
18,000,000
Step-by-step explanation:
if you need an explanation, then comment on this answer. :)
Calculate the product below and give your answer in scientific notation.
(95) x (3 x 104) = ?
Answers
(95)(312)
29,640
2.964 x 10^4
Answer:
2.964 x 10^4
QUESTION 1
Find the derivative of the function f(x)= /7x-8 using the limiting process.
Answers
Answer: Apply the Sum/Difference Rule
d/dx(7x)-d/dx(8)
d/dx(7x)=7
d/dx(8)=0
7-0=7
Step-by-step explanation: The answer is 7
The probability distribution for the random variable follows. a. Is this a valid probability distribution? - Select your answer - b. What is the probability that (to 2 decimals)? c. What is the probability that is less than or equal to (to 2 decimals)? d. What is the probability that is greater than (to 2 decimals)?
Answers
Complete question :
X: 20__25 ___30 ___35
f(x): 0.20 _0.20_0.25 _0.35
Probability that x = 30
Probaility that x less than or equal to 25
Probability that X is greater than 30
Answer:
Kindly check explanation
Step-by-step explanation:
To establish if it is a valid probability distribution :
The sum of the probabilities must be equal to 1:
Σf(x) = 0.20 + 0.20 + 0.25 + 0.35 = 1
Hence it is valid
Probability that x = 30
P(x = 30) = 0.25
Probability that x ≤ 25 :
P(x = 20) + p(x = 25)
P(x ≤ 25) = 0.20 + 0.20 = 0.40
Probability that x > 30
P(x > 30) = p(x = 35) = 0.35
Find an equation in slope intercept for the line (5,3) and (-1,4)
Answers
Answer:
Step-by-step explanation:
5
A lifeguard received 15
Answers
Answer:
c
Step-by-step explanation:
54 - 6 x 5/3
= 54 - ? /3
= 54 - ?
= ?
Answers
Answer:
Step-by-step explanation:
Select the best estimate of the product of 68 x 32 = ____
A 1,900
B 1,100
C 1,500
D 2,100
Answers
Answer:
2,100
Step-by-step explanation:
68 x 32 =
rounded numbers below
70x30=2,100
Consider the system of inequalities x < 10 and x > 3
How many solutions are there to this system of inequalities?
What is the largest value of x in the solution set?
Explain your responses in the box below.
Answers
Answer:
There are 6 different solutions. The largest value of x in the solution set is 9.
Step-by-step explanation:
X has to be less than 10 and greater than 3. So it has to be 4 5 6 7 8 or 9
A rectangle has a width of 3∕4 inches and a length of 9∕10 inches. Another rectangle is larger but still proportional to the first rectangle. It has a width of 30 inches and a length of 36 inches. What proportion could model this situation?
Question 1 options:
A)
B)
C)
D)
Answers
Answer:
Bigger size / smaller size = 40
Step-by-step explanation:
Notice that we
36 / (9/10) = 30 / (3/4) = 40
Therefore the proportion model would be
Bigger size / smaller size = 40
If x ≅ y, state the reason why lines p and q are parallel.