Answer:
A: an = 6n - 9
Step-by-step explanation:
third term in an arithmetic sequence is 9
a3 = a + 2d
a + 2d = 9
the fifth term is 21
a5 = a + 4d
a + 4d = 21
a + 2d = 9 (1)
a + 4d = 21 (2)
Subtract (1) from (2) to eliminate a
4d - 2d = 21 - 9
2d = 12
d = 12/2
d = 6
Substitute d = 6 into (1)
a + 2d = 9 (1)
a + 2(6) = 9
a + 12 = 9
a = 9 - 12
a = -3
nth term of this sequence = a + (n - 1)d
= -3 + (n - 1)6
= -3 + 6n - 6
= 6n - 9
an = 6n - 9
1 Which expression is equivalent to 4 − (−7)?
A 7 + 4
B 4 − 7
C −7 − 4
D −4 + 7
Answer:
The answer is A
Step-by-step explanation:
4−(−7)
=4−(−7)
=4+7
=11
Choose 3 answers pls help
Answer:
B, C, and D
Step-by-step explanation:
They all have inequality signs, < or >, and the others are expressions
I need help figuring out X, i’ve been trying multiple solutions and I still don’t get what I have to do.
Answer: 5
Step-by-step explanation:
47+ 16x-4 +12x-3 =180
28x +40 =180
28x = 140
X= 5
Dave places £17000 in an account which pays 4% compound interest per year. How many
years will it take before he has £19122.69 in the bank?
Answer:
3 years
Step-by-step explanation:
Does the graph represent a function?
Choose 1 answer:
A. Yes
B. No
Plz someone help!
Answer:
B no it's not a function
Step-by-step explanation:
there has to be decrease and increase in the line
-8 is a term true or false
True, -8 is a term. Have a great day.
7. 8x - 4= 4(2x + 1) have how many solutions
Answer:
0
Step-by-step explanation:
Let's solve for x
8x-4=4(2x+1)
8x-4=8x+4
0= 8
This obviously isn't true and therefore there are 0 solution
Answer:
No solution as both side not equal.
What is an equivalent equation for each given equation?
4x + 11 = 15
a.) 4x = 26
b.) -4x +11 = -15
c.) 15 = -11 - 4x
d.)4x = 4
Answer:
d
Step-by-step explanation:
4x + 11 = 15
4x = 4
x = 1
three to the fifth power
answer please
Answer:
243
Step-by-step explanation:
Answer:
243
Step-by-step explanation:
Find the LCM for each pair of numbers. 2, 5 8, 10
please help solve for x ................................................................
Answer:
104°+33°+(5x+13)°=180°[all angle sum is 180°]
137°+(5x+13)=180°
137°+13+5x=180°
150°+5x=180°
5x=180°-150°
5x=30
x=30/5
×=6
Answer:
x = 6
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Sum the 3 angles and equate to 180
5x + 13 + 104 + 33 = 180, that is
5x + 150 = 180 ( subtract 150 from both sides )
5x = 30 ( divide both sides by 5 )
x = 6
hi can anyone tell me the answer
Answer:
Attached a pic!!
Hope it helps!!!!
Which graph represents the function y = 2 x - 2?
3
414
个
2
2
2
2
x
4-2
2
4
-4-2
-4
-2
-2
-2
4
The graph which represents the function; y = 2 x - 2 is the second graph from the left.
Graph of FunctionsBy considering the slope-intercept form of the equation of a straight line;
y = mx + cBy observation, the graph of the function has y-intercept, -2 and has slope, m = 2
The graph most comparable to the information above is the third graph and hence is the graph of the function.
Read more on graph of a function;
https://brainly.com/question/926962
Answer:
3rd one or c
Step-by-step explanation:
Simplify :
- 1/2 (4/5 _ 8y)
Answer:
[tex] - \frac{1}{2} ( \frac{4}{5} - 8y) \\ = - \frac{4}{10} + \frac{8y}{2} \\ = - \frac{2}{5} + 4y \\ = \frac{ - 2 + 5 \times 4y}{5} = \frac{ - 2 + 20y}{5} \\ - 2 + 20y = 0 \\ 20y = 2 \\ y = \frac{1}{10} [/tex]
If the density of a piece of wood is 0.85 g/cm3, what is the volume if the mass of 24.99 cm3?
Answer:
to find volume
Step-by-step explanation:
I think so it is like this 24.99/0.85 =29.4
Evaluate the following expression. Round to the nearest hundredth when necessary.
27
Answer:
27?
Step-by-step explanation:
27 is a whole number you know
Plz help me :(:(:(:(:(:(:(:(::(((::(:(:(.(.(
Answer:
Look below!
Step-by-step explanation:
Angle A = 180-47 = 133
Angle B = 180-32-Angle A = 180-32-47 = 101
Angle D = 90-32 = 58
Angle C = 180-47-58 = 75
Hope I helped!
Answer:
A=133 ,B=15, C=75 D= 58
Step-by-step explanation:
Angle 32, d, and right angle add up to 180. So 180=32+90+x. Then x = 58 (D). The all 3 angles in the triangle add up too 180 so 180=47+58+x. x=75 (C). The 47 and a equal to 180 degrees. 180-47=133. The 133+32+x=180. x=15 (B).
Math Help Me Please!!! Thank you
Answer:
B: Linear
Step-by-step explanation:
Linear can be all different patterns including inconsistent patters as you see on the screen.
Linear can also be provided in algebra.
Dots A: 5
Dots B: 7
Help pls (pls dont write absolute nonsense on here pls i really need help)
Need help with finding X
Answer:
Step-by-step explanation:
Mark took his family to the movies and spent a total of 78$ on tickets he also bought a soda for each family member each sodas cost 4.25 if mark spent a total of 102,50 on sodas and tickets. How much sodas did he buy
Answer: He bought about 6 sodas.
Step-by-step explanation:
Given: Tota cost of tickets = $ 78
Cost of each soda = $4.25
Total cost of sodas and tickets = 102.50
Let x = Number of sodas purchased
Then
[tex]78+4.25x=102.50\\\\\Rightarrow\ 4.25x=102.50-78\\\\\Rightarrow\ 4.25x=24.5\\\\\Rightarrow\ x= \dfrac{24.5}{4.25}\\\\\Rightarrow\ x\approx6[/tex]
Hence, he bought about 6 sodas.
Find the slope of the line given the two points on the
line are (-3, 4) and (5, 7).
Answer:
3/8 its rise over run and positive
A construction company submitted bids for three contracts. The company estimates that it has a 20%
chance of winning any given bid. Let X represent the number of bids the company wins. Here is the
probability distribution of X along with summary statistics:
X = # of bids won-
0 1 2 3
P(X)-
0.512 0.384 0.096 0.008
Mean: µx=0.6
Standard deviation: σx=0.69
It costs the company a total of $2,000 to submit these bids, and they stand to gain $10,000 for each bid
they win. Let V represent their net gain from submitting these three bids.
What are the mean and standard deviation of V?
µv= ______dollars
σv=_______dollars
Answer: 4000 dollars
6900 dollars
Step-by-step explanation:
What is the surface area of this rectangular pyramid?
8.1 cm
9.3 am
12 cm
5 cm
HELP I WILL GIVE BRAINLIEST I PROMISE
There are 8 students on the school chess team. They need to raise at least $760 for a field trip. Their advisor says they still need to raise 85% of the funds, and she wants each of them to raise an equal share of the money still needed. Diego wrote and solved the inequality 8m + 0.85(760) ≥ 760 to find the least amount of money, m, each student on the chess team needs to raise. He says the solution is m ≥ $14.25. Diego is incorrect. What should be the correct solution? *
10 points
m ≤ $14.25
m ≥ $80.75
m ≤ $80.75
Answer:
m ≤ $14.25
Step-by-step explanation:
Answer:
m ≤ $80.75
Step-by-step explanation:
hope it helps
Ill give you brainliest and 5 stars help plz
Answer:
D
Step-by-step explanation:
It is going from top left to bottom right, so we now it is a negative slope. This leaves us with B or D. When the y axis decreases 1 (aka (x,-1)) the x axis is at 4. Rise/run is 1/4.
hey i need that special someone, 7th grade, 13, somewhat a lil older could be fine,also imma a girl, but yk yeah hmu...
Answer:
mf you are asking this in high school.
Step-by-step explanation:
How do you do this C=2πr with π=3.14?
Answer: C=2*3.14*r
Step-by-step explanation:
You just plug in 3.14 for pi, it's pretty simple
can u guys help me this is hard and i dont understand
Answer:
Ok so this is not a function.
However i'm not real sure about domain and range because i'm not sure what you can do in those boxes but this is a guess.
Hope this helps though!:)
Domain: -3, -2, -1, 0
Range: 12, 13, 14, 15
Quien me puede ayudar es U R G E N T E The GCF of 54, 76 and 114 is: 2 6 4 9 1 The GCF of 35, 50 and 120 is: 2 4 5 25 2 Find the GCF of 12, 16 and 20 1 If the GCF of 56 and 120 is c, find the result of 24\div c24÷c
Responder:
a) 2
b) 5
c) 4
d) 3
Explicación paso a paso:
Debemos encontrar el MCD de los siguientes números
a) 54, 76, 114
encontrar los factores primos de cada
54 = 2 * 3 * 3 * 3
76 = 2 * 2 * 19
114 = 2 * 2 * 2 * 2 * 3 * 3
De los factores anteriores, podemos ver que solo 2 es común a todos los factores, por lo tanto, el MCD de 54, 76 y 114 es 2
b) Para 35, 50 y 120
35 = 5 * 7
50 = 2 * 5 * 5
120 = 2 * 2 * 2 * 3 * 5
De los factores anteriores, podemos ver que solo 5 es común a todos los factores, por lo tanto, el MCD de 35, 50 y 120 es 5
c) Para 12, 16 y 20
12 = 2 * 2 * 3
16 = 2 * 2 * 2 * 2
20 = 2 * 2 * 5
De los factores anteriores, (2 * 2) es común a todos ellos, por lo tanto, el MCD de 12, 16 y 20 es 4
d) Para 56 y 120
56 = 2 * 2 * 2 * 7 = 8 * 7
120 = 2 * 2 * 2 * 3 * 5 = 8 * 3 * 5
De los factores anteriores, podemos ver que solo 8 es común a todos los factores, por lo tanto, el MCD de 56 y 120 es 8.
Por tanto, c = 8
Necesario
24 / c
= 24/8
= 3
Por tanto, el resultado de 24 / c es 3