Answer:
x= [tex]\frac{4}{3}[/tex]
Step-by-step explanation:
(✿◡‿◡) <-- she helped u on your test, the least you can do is give her brainliest
The distance y (in miles) that Train A travels in x hours is represented by the equation y=68x . The graph shows the distance that Train B travels. (0, 0) and (1, 64).
Answer:
For train A, the distance traveled as a function of time in hours is written as:
y = 68*x
For train B, we know that it's equation passes through the points (0, 0) and (1, 64)
Remember that:
A linear relationship can be written as:
y = a*x + b
where a is the slope and b is the y-axis intercept.
For a line that passes through the points (x1, y1) and (x2, y2), the slope can be written as:
a = (y2 - y1)/(x2 - x1).
Then the slope for the equation of train B is:
a = (64 - 0)/(1 - 0) = 64
Then equation of train B is something like:
y = 64*x + b
Now, we know that it passes through the point (0, 0), this means that when x = 0, we also have y = 0, then if we replace these two values in the equation we get:
0 = 64*0 + b
0 = 0 +b
then b = 0
This means that the equation for train B is:
y = 64*x
Where again, y is the distance in miles and x is the time in hours.
If we look at both equations, we can see that train A has a larger slope, which means that for each unit of time, train A travels a larger distance, then we can conclude that train A is faster than train B.
The nth term of the sequence is n^2 + 20
How many terms in the sequence are less than 50
plss help!!
Answer: 5 terms.
Step-by-step explanation:
We know that the n-th term of a sequence is:
Aₙ = n² + 20
Where n can be any natural number, then n ∈ {1, 2, 3, ...}
We want to find how many terms are smaller than 50.
Then we could find the first value of n such that Aₙ is equal or larger than 50.
Then we can solve:
Aₙ = n² + 20 = 50
then:
n² = 50 - 20 = 30
n = √30 = 5.48
This is not a natural number, so we need to round to the next one that is n = 6
This means that the first natural number n such that Aₙ is equal or larger than 50 is n = 6, then for the values:
n = 1, 2, 3, 4, 5
Aₙ is smaller than 50
This means that there are 5 terms of the sequence that are smaller than 50.
How do you find the base in the Pythagorean theorem, c=18, a=9, what is b?
Answer:
b = 15.59
Step-by-step explanation:
a^2 + b^2 = c^2
9^2 + b^2 = 18^2
81 + b^2 = 324
-81 -81
b^2 = 243
b = 15.59
Pythagorean Theorem -
[tex]a^{2} + b^{2} = c^{2} [/tex]
1 - Input the values!
[tex] 9^{2} + x^{2} = 18^{2} [/tex]
2. Find the exponents!
[tex]81 + x^{2} = 324[/tex]
3. Multi step Equations!
[tex]81 - 81 = 0 \\ 324 - 81 = 243[/tex]
4. Use square roots to find x!
[tex]x = \sqrt{243}[/tex]
Answer: X=The Square Root Of 243
Find the length side
Answer:
PR = 6.93 units
PQ = 13.86 units
Step-by-step explanation:
From ΔPQR,
m∠Q = 30°
QR = 12
By applying tangent rule for the given angle in the triangle,
tan(30°) = [tex]\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]
tan(30°) = [tex]\frac{PR}{QR}[/tex]
[tex]\frac{1}{\sqrt{3}}=\frac{PR}{12}[/tex]
PR = [tex]\frac{12}{\sqrt{3} }[/tex]
PR = 4√3 ≈ 6.93
Now we apply cosine rule,
cos(30°) = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]
[tex]\frac{\sqrt{3} }{2}=\frac{QR}{PQ}[/tex]
[tex]\frac{\sqrt{3} }{2}=\frac{12}{PQ}[/tex]
PQ = [tex]\frac{24}{\sqrt{3} }[/tex]
PQ = 8√3 ≈ 13.86
a wedding planner accounts for 8 chairs at every round table. how many tables will be needed to seat 175 people?
Answer:
21.875
Step-by-step explanation:
you do 175 divided by 8
The required number of tables to seat 175 people are 22.
What is division?Division is defined as the splitting of a large group into smaller groups such that every group will have an equal number of items.
it is given that,
Number of chairs for 1 table = 8
Number of people to seat = 175
Therefore chairs = 175
Since 8 chairs are required at every round table
Therefore,
Number of tables to seat 175 people = Number of people to seat/Number of chairs for 1 table
⇒ Number of tables to seat 175 people = 175/8
⇒ Number of tables to seat 175 people = 21.87 ≈ 22 tables
Thus, the required number of tables to seat 175 people are 22.
To learn more about division:
https://brainly.com/question/14905604
#SPJ2
Margo is repaying a loan from her parents.she has already paid $315 and still owes them $1245. Write an equation to find the original amount a of the loan.
The original amount of the loan of Margo is $1560.
How to form an equation?Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.
In other words, an equation is a set of variables that are constrained through a situation or case.
Let's say the original amount is x
Given that,
She has already paid $315 and still owes them $1245.
So,
x - 315 = 1245
x = 1560.
Hence "The original amount of the loan of Margo is $1560".
For more about the equation,
https://brainly.com/question/10413253
#SPJ2
Determine the coordinates of the y-intercept of 3x − 4y = 24.
Answer:
(0, -6)
Step-by-step explanation:
At the y-intercept, the x-coordinate equals zero.
3x - 4y = 24
3(0) - 4y = 24
-4y = 24
y = -6
Answer: (0, -6)
Anyone mind helping ?
Is 12/15 greater than 1
Answer: well no I dont think so because it’s not a whole. it would be 12/12 I believe.
Step-by-step explanation:
(ASAP AND JUST LOOK AT THE PICTURE. )
The following graph shows a proportional relationship
What is the constant of proportionality between y and x in the graph?
y
8+
6+
41
2+
2
4
6
8
Constant of proportionality =
Answer:
4
Step-by-step explanation:
4/1=4
HELP!!!! If a scale of 2 in:10 ft is used, how long is an object that is 14 in. long
in a drawing?
Johnny makes $30 per hour , which is 20% of Sarah hourly rate. What is Donovan's hourly rate if he makes 50% of Sarah Hourly hourly rate ?
Answer: i think its 3 i not the best at math so im so sorry if this is wrong lol
Step-by-step explanation:
Joe spent 1 1/3 hours studying for his math test. Randy studied for the amount of time that Joe did. What fraction of a hour did Randy spend studying?
Answer:
1 1/3
Step-by-step explanation:
Randy studied for the same amount of time so it would be the same answer im not sure if I'm correct but hope this helps
I need help ASAP!! can u do this? :)
Find the area. Simplify your answer.
Answer:
2x(x + 3)
2x^2 + 6x
Answer: 2x²+6x
Step-by-step explanation:
A = bh
A = 2x(x+3)
A = 2x²+6x
Help me please this is my homework question
512 c2 so A sorry if im wrong
Answer:
384
Step-by-step explanation:
So there are 6 faces in a cube so first you need to know how big is one face then just multiply by 6 for all 6 faces. so 8*8 = 64. that means 64 is the area of one face.
then multiply that by 6 to get the total surface area.
there it is your answer 384 the 3rd option there
Write the equation of the line that passes through the points (4, -8) and (-8, 1).
Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal
line.
Answer:
y = -3/4x -5
Step-by-step explanation:
(4, -8) and (-8, 1)
m = (y2-y1)/(x2-x1)
m= (1+8)/(-8-4)
m = (9)/(-12)
m = -3/4
y - y1 = m(x-x1)
y + 8 = -3/4(x -4)
y + 8 = -3/4x + 3
y = -3/4x -5
Answer:
y = -3/4x - 5
Step-by-step explanation:
Hope this helps!
Either enter an exact answer in terms of T or use 3.14 for 7 and enter your answer as a decimal.
d=2
Answer:
N CCX XN
Step-by-step explanation:
HELPPPP PLSPLSPLSPSLSLLSLSLSLSLLSLSLSLLS
For the first box, you would multiply.
For the second box, you would multiply both sides by 3/2.
For the third box, the answer is 18.
[tex]\frac{2}{3}x=12[/tex]
[tex](\frac{3}{2} )*\frac{2}{3}x=12*(\frac{3}{2})[/tex]
[tex]x = 18[/tex]
If you have any further questions, please reach out to me :)
Answer:
multiply both sides by 3/2. The correct answer is 18
Step-by-step explanation:
I have absolutely no idea what this even is and it is a huge grade
Answer:
50.27 (to 2dp)
Step-by-step explanation:
radius = 4
area of circle = pi * r * r
16 pi is area = 50.2655 units^2 (to 4dp)
Answer:
50.24
Step-by-step explanation:
Area of the circle is [tex]\pi r^{2}[/tex]. If the diameter is 8, then we know that the radius is 4, because the radius is half of the diameter. Then solve. 4 squared is 16, then multiply by 3.14 in place of pi and you will get 50.24. So yes, you are correct, it is 50.24.
I need help asap thank you
Answer:
A) it's positive
B) 37/30 or 1 7/30
Step-by-step explanation:
What is the result of the following expression? -9.07-(-2.8+1.3)
Answer:
-13.6
Step-by-step explanation:
Open the bracket
-9.07-(-2.8+1.3).
-25.39+11.79
-13.6
Answer:
-7.57
i found the answer by solving the equation in the parenthises, then i subtract the answer i got with -9.07, and thats how i found out the answer is -7.57 (feel free to use a calculator to make sure its correct :D)
What is 36838e÷592019339e
Answer:
Hi! Your answer is down below!
Step-by-step explanation:
Hope this helps!
Have a nice day <3
Answer:
57.2243187
Step-by-step explanation:
it would be way too long to explain
DUE ASAP PLZ HELP (brainliest if you get it right)
Part A
PERSEVERE Mei got scores of 76, 80, and 78 on her last three history exams. Write an inequality to determine the score, x, she needs on the next exam so that her average is at least 82.
Part B
Fill in the blanks to complete the sentence.
Solve the inequality.
Mei needs a score of at least ____ on the next exam.
here's the right answer!
A) 76 + 80 + 78 + x = 82 times 4
234 + x = 328
x = 94
B) Mei needs a score of at least 94 on the next exam.
hope you have a good day
find the slope of the line graphed below.
Answer:
5/6
Step-by-step explanation:
What number could replace m below?
4/12 = 1/m
Answer:
3
Step-by-step explanation:
4/12 = 1/3 yepppp djdkkdkdd
PLZ PLZ PLZ HELP I GIVE BRAINEST
what does x represent in the equation 3x+1=10
Answer:
3
Step-by-step explanation:
3x+1=10 subtract 1 to both sides
3x+1-1=10-1
3x=9 divide both sides by three
3x/3=9/3
x=3
If the perimeter of square 3 is 36 units and the perimeter of square 2 is 48 units, what is the area of square 1?
Answer:
225 [tex]units^{2}\\[/tex]
Step-by-step explanation:
Determine the y intercept I don’t know how please help
Answer:
(0, -2)
Step-by-step explanation:
Since line is intersecting y axis at point (0, - 2)
Hence, y-intercept = (0, - 2)