Answer:
[tex]a_5=-12[/tex]
Step-by-step explanation:
Given that,
The first term of the sequence, a = 8
Common difference, d = -5
We need to find the fifth term of the sequence.
The nth term of the sequence is given by :
[tex]a_n=a+(n-1)d[/tex]
Put n = 5, a = 8 and d = -5 in the above formula
[tex]a_5=8+(5-1)(-5)\\\\=8+4(-5)\\\\=8-20\\\\=-12[/tex]
So, the fifth term of the sequence is -12.
2. y is inversely proportional to cube of x.
When x = 2, y = 4.
Find y when x = 4
(3 Points)
Answer:
y = 0.5 at x = 4
Step-by-step explanation:
According to question,
y is inversely proportional to cube of x i.e.
[tex]y\propto \dfrac{1}{x^3}\\\\y=\dfrac{k}{x^3}[/tex]
or
[tex]k=yx^3[/tex]
Put x = 2 and y = 4 in above expression to find k.
[tex]k=4\times (2)^3\\\\=32[/tex]
Now put x = 4 to given equation to find y.
[tex]y=\dfrac{32}{4^3}[/tex]
y = 0.5 or 1/2
So, the value of y is 0.5 when x = 4.
What is the solution to the system of equations? y = 12x + 2 2y = x + 4
Answer:
(x,y)=(-28/11,16/11)
Step-by-step explanation:
hope this helps!
Answer:
x=0, y=2. (0, 2).
Step-by-step explanation:
y=12x+2
2y=x+4
------------
2(12x+2)=x+4
24x+4=x+4
24x-x=4-4
23x=0
x=0/23
x=0
y=12(0)+2
y=0+2
y=2
ASAP BRAINLIEST
1- One number is 10 less than twice another. If their difference is 31, what is the larger number?
87
72
75
2-
Given the system of equations, what is the solution?
2x + y = 7
2x - 3y = -1
{( , 2)}
{(2, )}
{(1, )}
3-
Which of the following systems is equivalent to the given system?
x - y = 1
x + y = -1
2x - 3y = 6 and 4x + y = 4
4x - 3y = 6 and 4x - y = -4
4x + 3y = -6 and 4x - y = 4
4- Given the system of equations, match the following items.
2x + y = -1
x - 5y = 4
5-
If the second equation is multiplied by 5 and then the equations are added, the result is _____.
x + 5y = 3
2x - y = -2
9x = 13
11x = -7
9x = -7
Answer:
See answers below with explanations
Step-by-step explanation:
Problem 1:
One number is 10 less than twice another.
This translates to n=2m-10
Their difference is 31
This translates to n-m=31
n-m=31
(2m-10)-m=31
m-10=31
m=41
n-41=31
n=72
Therefore the larger number is (B) 72
Problem 2:
Use elimination:
2x + y = 7
- 2x -3y = -1
4y = 8
y = 2
2x+2=7
2x=5
x=2.5
Therefore the solution is (A) {(2.5,2)}
Problem 3:
Use elimination:
x - y = 1
- x + y = -1
-2y = 2
Check if each answer eliminates to -2y=2:
2x - 3y = 6
4x + y = 4
-2x - 4y = 2 NO
4x - 3y = 6
4x - y = -4
-2y = 10 NO
4x + 3y = -6
4x - y = 4
4y = -10 NO
Neither answer is correct
Problem 4:
No visible items to match
Problem 5:
2(2x - y = -2)
4x - 2y = -4
x + 5y = 3
4x - 2y = -4
5x + 3y = -1
None of the answer choices are correct
Please help this is an emergency
Han’s cell phone plan costs $200 to start. Then there is a $50 charge each
month. If you are to graph the relationship, what will be the y - intercept
and the slope?
ASAP 20 points - Which expression best estimates 6 and 3/4 divided by 1 and 2/3?
A. 7 divided by 2
B. 6 divided by 1
C. 8 divided by 3
D. 3 divided by 2
Answer:
A. 7 divided by 2
Step-by-step explanation:
The computation is shown below;
[tex]= 6\frac{3}{4} \div 1 \frac{2}{3} \\\\= \frac{27}{4} \div \frac{5}{3}\\\\= \frac{27}{4} \times \frac{3}{5}\\\\= \frac{27\times 3}{4\times 5} \\\\= \frac{81}{20} \\\\= 4 \frac{1}{20}[/tex]
It could be 4.05
So according to the given options, the option 1 is chosen at is closed to 4.05
Hence, the option A is correct
help please:))) i just wanna pass:/
Answer:
1,3,4 I believe is correct
Is (-3,0)a solution to the equation 2x+6y=-6?
Answer:
Yes
Step-by-step explanation:
x , y
(-3 , 0)
plug in the numbers
2(-3) + 6(0) = -6
-6 = -6
two times what wade's age was seven years ago
Answer:
how old is he now...?
what is 7 divided by 44
Answer:
0.1590909999999001
Step-by-step explanation:
5(*$85$84#58$58$85$&(xgkzgkzgkz&)$"(*85dtkdtistozogzfizfjzfjzfjsotyd
Describe the transformation from the parent
function: f(x) = -1/4(x - 3)^2 + 2
HELP HELP ME PLEASE ANYONE I BEG HELP
Step-by-step explanation:
probability of getting 20 republican, 13 democrats and 6 in independence? help me please I'm preparing by in exam
Answer:
c
Step-by-step explanation:
C is the best answer because she wants to sell for less and not for more than $4.
HOPE THIS HELPED
The shadow of a vertical tower is 52.5 meters long when the angle of elevation of the sun is x degrees. The height of the tower is 41 meters. Find the angle of elevation rounded to the nearest degree.
Answer:
Angle of Elevation = 38°
Step-by-step explanation:
Angle of Elevation formula is given as
tan x = Opposite /Adjacent
Where
x = Angle of Elevation
Opposite = Height of the tower = 41 meters
Adjacent = Shadow of the vertical tower = 52.5 meters
Hence:
tan x = 41 m/52.5m
x = arc tan (41 m/52.5m)
x = 37.988141726°
Approximately to the nearest degree x = 38°
Please help with my math homework
Answer:
81+49=c^2
c=11.74
this is the right answer
Answer:
root 130 is the may the correct if it is wrong sorry
what is the volume of a cube that has a height of 10 inches? 10 Inches 100 cubic inches » 40 cubic inches 600 cubic inches 1,000 cubic inches Done
Answer:
40 cubic
Step-by-step explanation:
whats the average rate of change for 1
Answer:4
Step-by-step explanation:
To the nearest hundredth, which is the value of x in the solution of the following system? 3.5x - 2.8 = -4.67x + 12.5 Select one: a. -3.75 b. -1.87 c. 1.87 d. 3.75
Answer:
C. 1.87
Step-by-step explanation:
3.5x - 2.8 = -4.67x + 12.5
3.5x + 4.67x = 12.5 + 2.5
8.17x = 15.3
x = 15.3 ÷ 8.17
x = 1.87270501836
So, the closest choice to 1.87270501836 is 1.87, so the answer is C.
Hence, the answer would be C. 1.87. I am 100% sure on this, for I am a pro.
Please mark as Brainliest!!!I need help with only 1-4. I'll give brainliest to the most helpful answer !!!
Answer:
1. the second picture
2. the third picture
3. the third picture
4.the first picture
Convert each fraction to a decimal. Show your work.
#1. 1/4=
#2. 2/5=
#3. 11/25=
#4. 79/100=
Answer:
1. 0.25
2. 0.4
3. 0.44
4. 0.79
Step-by-step explanation:
I’m so sorry short on time can’t explain right now
A car travels 120 miles in 2.5 hours (with a constant speed). What is the car's
speed in miles per hour?
Answer:
48
Step-by-step explanation:
120 divided by 2.5 = 40
Answer:
48 miles per hour
Step-by-step explanation:
to find the average speed, the equation is speed = distance ÷ time
120 ÷ 2.5 = 48 miles per hour
choose the symbol that correctly compares these mixed numbers .
Answer:
B. <
Step-by-step explanation:
The whole parts are equal since they are both 9.
We just need to compare the fractions 3/8 and 5/7.
The LCD is 8 * 7 = 56
3/8 = 21/56
5/7 = 40/56
3/8 < 5/7
9 3/8 < 9 5/7
In a survey, patients are asked how long they sat in their doctor's waiting area. The results for two doctors are shown below.
Doctor #1 (waiting time in minutes): 5, 10, 10, 15, 20, 20, 20, 100
Doctor #2 (waiting time in minutes): 10, 10, 10, 20, 20, 20, 25, 25
Based on the results, what is the best measure of center to compare the data, and how do the measures compare?
The median is the best measure. The median waiting time for Doctor #1 is 7.5 minutes longer than for Doctor #2.
The mean is the best measure. The mean waiting time for Doctor #2 is 2.5 minutes longer than for Doctor #1.
The mean is the best measure. The mean waiting time for Doctor #1 is 7.5 minutes longer than for Doctor #2.
The median is the best measure. The median waiting time for Doctor #2 is 2.5 minutes longer than for Doctor #1.
Answer: The mean is the best measure. The mean waiting time for doctor #2 is 2.5 minutes longer than for doctor #1
Step-by-step explanation:
find the values of x and y
Answer:
x=30
Step-by-step explanation:
dive 3x both sides then u should get 10
Which is a value for a that makes the following true? a/-3 - 1 > 4
Answer:
a= -18
Step-by-step explanation:
-18/-3 = 6
6-1=5
5>4
I just used guess and check to find -18 :)
Find the slope of the line that passes through (1, 15) (10, 8)
Answer:
m=-7/9
Step-by-step explanation:
The answer is -7/9 or -7 over 9
Hector's goal is to run at least 135 miles. He is going to run at least 3 miles per day.
Answer:
what's the question here if ur asking how long It'll take it's 45
Write the slope intercept form of the equation of each line given the slope Y- intercept. Slope =9, y- intercept = -5.
Please help me
Answer:
y = 9x - 5
Step-by-step explanation:
Slope Intercept Form: y = mx + b
( m = slope and b = y-intercept form )
Is it addition
subtraction
multiplication
division
Which number is irrational
Answer:
[tex]\sqrt{2}[/tex]
The answer is [tex]\sqrt{2}[/tex] because it equals an irrational number. ( [tex]1.41421356237[/tex] )
Hope this helps! <3
Somebody help me out
8=-5k+k
Answer:
k = -2
Step-by-step explanation:
8 = -4k
8 / -4 = k
k = -2
Please mark as Brainliest!!!Can someone plz help .quick!!! Plz I beg u
Answer:
its number 2
Step-by-step explanation: