Answer:
-21
Step-by-step explanation:
Given the sum of the first n term as;
Sn = 2 - 7n^2
The nth term is expressed as;
Tn = Sn - Sn-1
Sn-1 = 2 - 7(n-1)^2
Tn = 2 - 7n^2 - (2 - 7(n-1)^2)
Tn = -7n^2 + 7(n-1)^2
To get the second term, we will substitute n = 2 into the resulting expression
T2 = -7(2)^2 + 7(2-1)^2
T2 = -7(4)+7(1)^2
T2 = -28 + 7
T2 = -21
Hence the second term of the sequence is -21
HELP PLEASE DUE IN 3 MINUTES
does anyone know the answer to this?
Answer:
I think she has about 3 segments for sprinting and 6 segments for jogging
A train travels 5 miles in 12 minutes at this rate how far will go in two hours
Answer:
Well, 60 (minutes in an hour) divided by 12 (from the problem) is 5, so you have to multiply that 5 by the 5 from the problem to find that the train is going 25 (5*5) mph. Just double this for two hours, and you result in 50!
Step-by-step explanation:
9 cm
8 cm
13 cm
9 cm
11 cm
O 455cm
172cm?
Submit Answer
Step-by-step explanation:
13×9+((13-8)×11)/2
117+55/2
154.5
HELP PLEASE
will give brainliest to correct answer
Answer:
use ph0t03ath its answers every math question
Help me with this please
Answer: (7 , 4)
5+2 = 7
2+2 = 4
Answer: (7,4)
Step-by-step explanation:
Given that ∠S ≅ ∠A, and AB ≅ ST , what is the third congruence needed to prove that ΔABC ≅ ΔSTU by ASA?
Answer:
angle-side-angle. that's my answer
A stack of 6 books weighs 4.8 pounds. If each book weighs the same amount, how much does each book weigh?
Answer:
Each book weights .8 pounds
Step-by-step explanation:
Take the total weight and divide by the number of books
4.8 /6
.8 lbs
Each book weights .8 pounds
Find the indicated side of the
triangle.
b = 7 [?]
b is a diagonal of a square. Diagonal is just [tex]a\sqrt{2}[/tex] which means that b is equal to [tex]7\sqrt{2}[/tex].
A. x < 3
B. x > 3
c. y < 3
D. y > 3
Answer:
x>3
Step-by-step explanation:
this show unequally in the graph
3. Evaluate the expression
-8 + 5 - (-4) - 7
do u know this can u help me its for my math IA
Step-by-step explanation:
-8+5-(-4)-7
-6 Hope this helos you
y= -3x + 1
y + 5 = -3(x + 2)
are thes perpendicular or paralell
Answer:
Parallel
Step-by-step explanation:
Which inequality best represents the range of the part of the quadratic function graphed on the grid?
Answer:
It's B
Step-by-step explanation:
The line is on the x so it will be something with x in the answer. -9 or 0 or not present so it is B
what the answer for the poles in feet.
Answer:
A)10 feet tall
Step-by-step explanation:
The man casts a shadow half his height and so does the telephone pole
The Problem: Phillips Health and Beauty Spa is replacing one of its workstations. The interest on a loan secured by the spa was $93.50. The money was borrowed at 5.5% simple interest for 2 years. What was the amount that they borrowed?
Answer:
$850
Step-by-step explanation:
Amount that was borrowed = interest / (interest rate x time)
93.50 / (0.055 x 2) =
93.50 / 0.11 = $850
After a shipwreck, Sam is stranded on a desert island. He needs to build a shelter, so he
makes an axe using materials from the wreckage and starts cutting down trees.
There is a proportional relationship between the number of days Sam is stranded on the
island, x, and the total number of trees he cuts downy
The constant of proportionality is gotten from the graph to be 5
How to solve for constant of proportionalityThe complete part of the question is in the attached image which is a graph.
The graph has a positive slope, which implies a direct proportionality
hence we have that the number of trees is directly proportional to the number of days spent.
Let t represent the number of tress, d represent the number of days, and k constant of proportionality
The relationship is expressed mathematically as:
t ∝ d
t = kd
using any arbitrary point from the y axis ( t ) and tracing to the x axis ( d ). We have t = 5 and d = 1. substituting the values gives
5 = k* 1
Therefore
k = 5
The constant of proportionality is 5
Read more on proportional relations here: https://brainly.com/question/23318486
#SPJ1
Answer:
Step-by-step explanation:
i don't know but the answers is 5
can someone help please 13 points and those are the only answer options for all 4
Answer:
1 - x-axis, 2 - y-axis, 3 - y-axis, 4 - x-axis
Step-by-step explanation:
1. Which expression is equivalent to 9(y + 5) ?
a) 9y + 5
b) 9y + 45
c) 9y + 14
d) 14y
Answer:
B)
Step-by-step explanation:
When you take the bracket out, you need to do 9*y + 5*9 = 9y + 45.
If it is helpful, plz give me Brainliest.
Describe and correct the error. |8.94| = -8.94
Answer:
8.94
Step-by-step explanation:
the absolute value by itself is not a negative number
I just need help solving this problem. Also please don't put the answer into a file because I can't open them. It's also really sketchy.
Answer:
The value of x is 27
because 2 times 27 equals 54 minus 7 equals 47
A boogie board that normally sells for $69 is on sale at a 35% discount. what is the total cost of the boogie board?
Answer: 44.85
Step-by-step explanation:
apply the distributive property to factor out the greatest common factor
60m-40=
Answer:
The greatest common factor is 20
Step-by-step explanation:
Rewrite 40 as 20*2
Rewrite 60 as 20*3
=20*3m-20*2
Factor out common term 20;
20(3m-2)
Answer:
I put in the answer on khan and got it correct.
Step-by-step explanation:
Select the correct answer.
For the function () =
this function?
–3sin(s) + 2, the distance between the maximum and minimum values is 6. Which statement must be true about
ОА. The period of the function is 37
OB. The range is (-3, 3].
OC. The midline is y = 3.
OD.
The amplitude is 3.
Answer:
C its obviusssssssssssssss
Can someone help me asap
Answer:
1) 4
2) 5
3) -23
4) 8
5) 7
6) -64
7) -10
8) 19
9) 9
10) -56
Answer:
1) = -4
2) = 5
3) = 17
4) = 8
5) = 7
6) = -64
7) = -10
8) = 19
9) = 9
10) = -56
Step-by-step explanation:
1) (-4 + 2)^2 = -2^2 = -4
2) 25 / (9 - 4) = 25 / 5 = 5
3) 4 * 5 - 3 = 20 - 3 = 17
4) 2(2 + 2) = 2 * 4 = 8
5) (-10 + 5) / 5 + 8 = -5 / 5 + 8 = -1 + 8 = 7
6) (-3 - 1)^3 = -4^3 = -64
7) 5(5 - 7) = 5 * -2 = -10
8) 2 * 7 + 5 = 14 + 5 = 19
9) (5 * 3 + 3) / 2 = (15 + 3) / 2 = 18 / 2 = 9
10) 8(-1 - 6) = 8 * -7 = -56
Six times the sum of a number and 9 equals 8: translate the sentence into an equation
Answer:
6 times x+9=8
Step-by-step explanation:
Answer:
6(x+9)=8
Step-by-step explanation:
What’s the process for the lattice step by step?
At a local print shop, 12 copies can be made for $3. At this rate, how much would it cost to make 84 copies? Fill out the table of equivalent ratios until you have found the value of x
I'm here to get some points very sorry have a nice day
Find the coordinates of P.
Here is my answer. I hope this is helpful. If there is something you don't understand in my solution, you can ask me.
Can someone help me with this question.
Can someone help me fill in the chart
Brainiest answer to whoever helps
Answer:
9 for each row
Step-by-step explanation:
Answer:
I think that :
A and B : 464
C and D : 132
Step-by-step explanation:
For A and B
Surface area = (2(5+4)*8) + ( 2( 5*4*8)) = 464
For C and D
Surface area = (2(3+2)*6) + ( 2( 3*2*6)) = 132
I hope that is useful for you