Write down in terms of n an expression of the nth terms?
Answer:
A. nth term = 4 + (n - 1) -3
B. nth term = -7 + (n - 1) -5
Step-by-step explanation:
A. 4, 1, -2, -5, -8
First term, a = 4
Common difference, d = 1 - 4 = -3
nth term = a + (n-1)d
nth term = 4 + (n - 1) -3
B. -7, -12, -17, -22, - 27
First term, a = -7
Common difference, d = -12 - (-7)
= -12 + 7
= -5
nth terms = a + (n - 1)d
nth term = -7 + (n - 1) -5
Clark Kent and Lois Lane were laying on a blanket, enjoying a relaxing picnic when Clark noticed a giant asteroid approaching Earth. Clark calculates the angle of elevation of the asteroid's approach to be 62°. Lois' penthouse apartment is also in the pathway of the asteroid's approach, 100 feet above ground. Clark's eye is 75 feet from the base of Lois' building. Will the asteroid take out Lois' penthouse apartment?
Answer:
The asteroid will not take out Lois' penthouse.
Step-by-step explanation:
Since the distance between Clark and the base of Lois' building is x = 75 feet and the asteroid is at an angle of elevation of Ф = 62°. These two components form a right-angled triangle with opposite side h which is the height of the asteroid above the ground.
So, by trigonometric ratios,
tanФ = h/x
h = xtanФ
h = 75 ft × tan62°
h = 75 ft × 1.8807
h = 141.1 feet
Since h = height of asteroid above the ground = 141.1 feet is greater than height of the penthouse above the ground = 100 feet, the asteroid will not take out Lois' penthouse.
kevin mowed 12 lawns and earned a total of $60. which rate represents the amount of money earned per lawn?
HELP ASAP!!
Answer:
$5 per hour
Step-by-step explanation:
60/12= 5
Please help me I need help
Answer: 30 degrees
Step-by-step explanation:
Fill in the missing terms of the arithmetic sequence.
-7,_1,5,_,13
A:-3,9
b:-3,10
c:-4,10
d:-4,9
Answer:
d
Step-by-step explanation:
SOMEONE HELPPPPPPPPPP
Greg invests $300 in a savings account that earns 6% simple interest annually. If he does not make any additional deposits or withdrawals, how much money will be in the savings account after 4 years?
Group of answer choices
$318.00
$72.00
$18.00
$372.00
Answer:
372.00
Step-by-step explanation:
Answer: The answer is choice number four I hope this really helps!
Step-by-step explanation:
select all of the statements that are true about the following expression: -4x^3+3x^2-1
a) the polynomial is a cubic trinomial
b) the polynomial is not in standard form
c) the degree of the polynomial is 3
d) the leading coefficient is 4
e) the polynomial has 3 terms
f) the leading coefficient is -4
Answer:A
Step-by-step explanation:
Simplify the expression.
6/7x - 8 - 4/7x - 8
Answer:
Step-by-step explanation:
[tex]\frac{6}{7}x - 8 - \frac{4}{7}x - 8 = \frac{6}{7}x -\frac{4}{7}x - 8 - 8\\\\=\frac{6-4}{7}x - 16\\\\=\frac{2}{7}x - 16\\[/tex]
It doesn't make sense ?
Answer:
30 in
Step-by-step explanation:
1/4x-4=-10
Solve the equation for the value of the variable show all work please and thanks:)
Money from an allowance her job is known as what
Answer:
Step-by-step explanation:
income
Eric bought a canoe for $330.00. The sales tax was 5%. What was the total cost for the canoe?
Answer:
Step-by-step explanation:
to find out the sales tax,
330*(5/100)=16.50
total cost
330+16.50=346.50 dollars
please help me please will give brainliest to
Answer:
It is c
Step-by-step explanation:
Answer:
A) N = p/m
Step-by-step explanation:
let's say you can read 10 pages in 2 minutes and you're asked how many pages you can read in 1 minute. you would divide 10 by 2 to say you can read 5 pages in 1 minute
who wants an ice cream cone this small...? I have to use this as another reference......
Answer:
Depends on how much it costs...
Step-by-step explanation:
Answer:
i will glady take one anyday
Step-by-step explanation:
its smol
11) -6x – 9y = 0
-24x = 36y
Answer:
x = 0, y = 0
or
(0, 0)
Step-by-step explanation:
-24x - 36y = 0
divide the equation by 4
-8x - 9y = 0
-6x - 9y = 0
multiply the second equation by -1
6x + 9y = 0
add them together
-8x - 9y = 0
6x + 9y = 0
-2x = 0
x = 0
substitute into the second equation
-8 * 0 - 9y = 0
-9y = 0
y = 0
True or False:
3 + 11 = 11 + 3
A. true
B. false
Answer:
True, I think.
Step-by-step explanation:
Can some help me explain how and why
Please help!!!!!!
y=[?]°
Answer:
Since there are already 2 angles shown, which are 48 and 90 (indicated by the square in the bigger triangle, we can set up an equation.
48 + 90 + y = 180
138 + y = 180
-138 + 138 + y = 180 - 138
y = 42°
A colony of amoebas is being studied. The mass of the colony triples every day. On Day x of the study, the colony has a mass of 3 ^ x mg. a. What is the mass of the colony on Days 3, 2 and 1? What is the mass of the colony on Day 0, when the study begins? Show your work .
Answer:
mass on day 1: 3
mass on day 2: 9
mass on day 3: 27
Step-by-step explanation:
using this equation, y = 3^x, you can plug in 1, 2, and 3 for 'x' to get the value of 'y' (which represents the mass on specific days)
3^1 = 3
3^2 = 9
3^3 = 27
The perimeter of a pentagon is 94 yards. The sides measure 10 yards, 15 yards, 22 yards, 30 yards, and n yards. What is the measurement of the fifth side?
Answer:
20 yards
Step-by-step explanation:
94-10-12-22-30=20
n a survey of 3100 people who owned a certain type of car, 775 said they would buy that type of car again. What percent of the people surveyed were satisfied with the car?
answer : 25%
775 / 3100 were satisfied
to make this a percentage, you need to make the demoninator 100 : 3100/100=31
and then you divide the numerator by this : 775/31= 25
10x10x8 divided by 2 with remainder
Answer:
400
10x10x8÷2
=100x8÷2
=800÷2
=400
Hope this helps :)
A laundry basket contains 6 socks, of which 2 are red.
What is the probability that a randomly selected sock will be red?
Write your answer as a fraction or whole number.
Answer:
1/3
Step-by-step explanation:
If 2 out of the 6 socks are red then the odds of you picking one randomly are 2/6 which equals 1/3
It's important that you understand this stuff. Do you have any questions?
Answer:
it 3/10
Step-by-step explanation:
i did it
May someone please assist me...I keep getting it wrong and it is due in 10 minutes.
Answer:
what is it you need to know
Step-by-step explanation:
What is the exact solution to the system of equations shown on the graph?
Answer:
x = 1.2
y = 4.6
(1.2, 4.6)
Answer:
(-1 [tex]\frac{1}{5}[/tex], 4 [tex]\frac{3}{5}[/tex])
Step-by-step explanation:
the system of equations is:
y = -3x + 1
y = 2x + 7
4/7w = 16 hurry please
Answer:
4
7
w
=
16
Multiply both sides of the equation by
7
4
.
7
4
⋅
4
7
⋅
w
=
7
4
⋅
16
Simplify
7
4
⋅
4
7
⋅
w
.
Step-by-step explanation:
Answer:
28
Step-by-step explanation:
4/7w = 16
Multiply both sides by 7/4 to get the variable isolated
w=28
My husbands: bakugou, Deku, tamaki, dabi, hawks, denki, Kiri, shinsou, Hinata, kageyama, suga, saiki k
Oh so mods don’t come Whats 1+1
Answer:
2
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
yea
Is x = 5 a solution to the equation 19 - x= 14?
A. Yes, because 19 - 5 = 14 is not true.
B. No, because 19 - 5 = 14 is not true.
C. Yes, because 19 - 5 = 14 is true.
D. No, because 19 - 5 = 14 is true.
Answer:
C.
Step-by-step explanation:
If you plug in the value of x (5) into the equation you get...
19-5=14
Then solve.
14=14
Is 14=14?
Yes!
Meaning that it is a solution.
Hope this helps!
Helpppp I’m being timed please write this in y=Mx+b form
Answer:
y=2x-2
Step-by-step explanation:
Answer:
y = 2x - 2
Step-by-step explanation:
find the slope, and the y axis
ZB = round your answer to the nearest hundredth PLEASE HELP
Answer:
Boy a dont no but good luck
Step-by-step explanation:
i am not smart but sonthing like 67
