-7y + 3 – 12 – 2y
What is the answer
(8 x 10^-3) x (2 x 10^-4)
The fifth term of a geometric sequence is 32 and the eighth term is 4.
(a) Find the ratio. (2 marks)
(b) Find the first term. (2 marks)
(C) Find the sum of the first 50 terms of the sequence. (3 marks)
What is the first term?
Answer:
a. 1/2
b. 512
c. 1024
Step-by-step explanation:
The nth term of a geometric progression can be written as;
Tn = ar^n-1
where a is the first term, r is the common ratio and n is the term number
From the question;
Fifth term = ar^4 = 32
Eight term = ar^7 = 4
a. We want to find the common ratio
What to do here is that we can divide the 8th by the 5th term
ar^7/ar^4 = 4/32
r^3 = 1/8
r^3 = (1/2)^3
Thus r = 1/2
b. First term
we can make a substitution in any of the two given terms
Let’s use the fifth term
ar^4 = 32
a * (1/2)^4 = 32
a * 1/16 = 32
a = 16 * 32
a = 512
C. Sum of the first 50 terms
To calculate this, we use the sum of terms formula
Sn = a(1- r^n)/1-r
a = 512 , n = 50 and r = 1/2
Making the substitution;
Sn = 512(1-(1/2)^50)/1-1/2
Kindly note that (1/2)^50 will be infinitesimally small and will be close to zero
So we can approximate (1/2)^50 to be zero
Hence;
Sn = 512(1-0)/0.5
Sn = 512/0.5
Sn = 1024
If 4 tickets to a show cost$9.00, find the cost of 14 tickets.
Answer:
Step-by-step explanation:
Answer:
31.50 for 14 tickets
Step-by-step explanation:
We can use ratios to solve
4 tickets 14 tickets
-------------- = --------------------
9 dollars x dollars
Using cross products
4x = 9*14
4x =126
Divide each side by 4
4x/4 = 126/4
x =31.50
Plzzz help!!!! DUE TODAY!!!!! I AM WILLING TO GIVE BRAINLIEST!!!!! Use the values x=−0.5, 0, 1 to prove your solution to the equation 5+x−12=2x−7. In your final answer, include all of your calculations.
Round 3,567 to the nearest thousand
[tex]\text {Hey there!}\\\\\text {3,567 to the nearest thousand}\\\text {First, we look at the 5 in the hundreds.}\\\text {3567 nearest thousand is 4,000 because if the number is 5, it will goes to the end.}\\\\\text {Hope this helps!}\\\text {-TestedHyperr}[/tex]
Solve
(6.0 x 10 ^4) + (3.0 x 10 ^4)
Answer:
9x10000 or 9.0 x 10^4
Step-by-step explanation:
6x104+3x104
Simplifies to:
9x10000
=9x10000
Mark Brainliest?
Answer:
9.0 x 10^4
Step-by-step explanation:
(6.0 x 10 ^4) + (3.0 x 10 ^4)
=> 6 x 10000 + 3 x 10000
=> 10000(6+3)
=> 9(10000)
=> 9 x 10^4
=> 9.0 x 10^4
Simplify 7(exponent 6) multiplied by 7 (exponent 5)
Answer:
(7x7x7x7x7x7x7)x(7x7x7x7x7)
Step-by-step explanation:
The simplified version of [tex]7^6*7^5[/tex] is [tex]7^{11}[/tex]
The rule of multiplying exponents with like terms is to add the exponents.
If you want the fully simplified answer, its 1977326743
HELO ME PLEASE I NEED THIS NOW
Answer:
172.05
Step-by-step explanation:
formula to find regular pentagon=1/4 root 5(5+2root5)a^2
Please answer ASAP. You need to find what the mistake Page made. WILL AWARD BRAINLEST TO WHOEVER GIVE CORRECT ANSWER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer: She added 7x and 3y
Step-by-step explanation: The final answer should be 7x + 3y, not 10xy.
Answer:
She added 7x and 3y
Step-by-step explanation:
the final answer answer should be 7x + 3y, not 10xy. bc that is the mistake and ima give credit to the person who answered first bc it looks like i took the answer from them and i did not
have a blessed day byeee
HELP!!!!!!!!!!!!!!!! URGENT question below
Let's solve your equation step-by-step.
3x−5x+14=26
Step 1: Simplify both sides of the equation.
3x−5x+14=26
3x+−5x+14=26
(3x+−5x)+(14)=26(Combine Like Terms)
−2x+14=26
−2x+14=26
Step 2: Subtract 14 from both sides.
−2x+14−14=26−14
−2x=12
Step 3: Divide both sides by -2.
−2x
−2
=
12
−2
x=−6
Answer:
x=−6
If AABC = ADEC,
B = 48° and E = x + 4
A
B
E
x = [?]
Answer:
x = 44°
Step-by-step explanation:
If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ÷)
7 - 5/2 (8r - 6) + 2r =32
Answer:
r=-5/9
Step-by-step explanation:
Factor out the 2 from the expression
Reduce the numbers with the greatest common factor 2
Distribute the 5
Add Like terms
And then divide to get r
You have $700 to buy new carpet for your bedroom right and solve in any quality that represents the cost per square foot that you can pay for the new carpet. Specify the units of measure in each step
If you can show the steps it’ll be helpful
Most brainliesttttttttttttttttttttttttttt
Answer:
88
Step-by-step explanation:
d=6 f=2
(6)^2 + 26(2) =
36 + 26(2) =
36 + 52 =
88
Answer:
88
Step-by-step explanation:
Given
d² + 26f , substitute d = 6 and f = 2 into the expression
= 6² + 26(2)
= 36 + 52
= 88
Hey, I'd really appreciate some help. Thanks! I've attached the image :)
I really need an explanation, it's so confusing
Answer :0
Step-by-step explanation:a= -2 b= 5/2 c=-1/2
so a+b+c= -2+5/2 -1/2 =0
4 questions, if you dont know all of them please just help with at least 1. i have crossed out the ones i dont need help with. help me for brainliest <3
Answer:
the part you crossed out makes it look like a person's eyes and eye brows lol
Step-by-step explanation:
x+2/2x+3=y+1 rearrange and make x the subject
Answer:
x = y/2 - 1
Step-by-step explanation:
Solve for x:
2 x + 3 = y + 1
Hint: | Isolate terms with x to the left hand side.
Subtract 3 from both sides:
2 x = y - 2
Hint: | Solve for x.
Divide both sides by 2:
Answer: x = y/2 - 1
Which of the following could be in section D? A.√99 B.60/15 C.-20 D.9.2
Answer:
A. and B.
Step-by-step explanation:
A natural number by definition is a number that spans from 1 to 100 it can't have decimals or negative numbers.
A. Natural number, the square root of 99 is 11 which is in the span of 1 to 100.
B. includes a natural number when you divide 60/15 you get 4 which is in the span of 1 to 100.
C. Incorrect, includes a negative number so it's not a natural number.
D. Not a natural number it includes decimals.
When traveling to the airport, your checked baggage must be under 50 pounds. There are about 2.2 lbs. in one kilogram. What is this weight in kilograms? Round to the nearest tenth. *
I need help
Answer:
22.7 kg
Step-by-step explanation:
Using a conversion factor:
50 lb × (1 kg / 2.2 lb) = 22.7 kg
Using a proportion:
1 kg / 2.2 lb = x kg / 50 lb
2.2x = 50
x = 22.7
Atomic number tells you the number of ______________ contained in the nucleus of an atom. Which is always equal to the number of _____________ in an atom.
Answer:
The atomic number is equal to the number of protons in an atom
The atomic number tells you the number of protons in one atom of an element. It also tells you the number of electrons in a neutral atom of that element. The atomic number gives the “identity “of an element as well as its location on the Periodic Table.
Step-by-step explanation:
The atomic number is the number of protons in an atom of an element. For example, krypton's atomic number is 36. This tells us that an atom of krypton has 36 protons in its nucleus.
The atomic number tells you the number of protons contained in the nucleus of an atom. Which is always equal to the number of electrons in an atom.
What is an atom?An atom is the smallest possible unit of a chemical element.
There are protons and neutrons in the nucleus of an atom, and electrons outside the nucleus.
The atomic number indicates the number of protons or the number of electrons.
Therefore, Atomic number tells you the number of protons contained in the nucleus of an atom. Which is always equal to the number of electrons in an atom.
Learn more about atoms here:
https://brainly.com/question/1566330
#SPJ5
Monica reads 7 1/2 pages of a mystery book in 9 minutes what’s her average reading rate in pages per minute
Answer:
0.83
Step-by-step explanation:
How many solutions does the following system of equations have?
v=3x +2
2v=5x+8
Answer:
The answer is C, zero solutions.
Step-by-step explanation:
y = 5/2x + 2
2y = 5x + 8
Multiply 2 to the first equation.
2y = 5x + 4
Compare it with the other equation
2y = 5x + 4
2y = 5x + 8
Cancel 2y and 5x on both sides.
Remaining:
4 = 8
4 ≠ 8. Therefore, the answer is C, zero solutions.
7) Line Segment PR is 5 ft. Find the length of Line Segment PQ and QR. (Hint: use the segment addition postulate.)
Answer:
PQ = 1 ft
QR = 4 ft
Step-by-step explanation:
From the picture attached,
Segment PR has been divided into two parts by a point Q.
Length of segment PR = 5 feet
Length of segment PQ = (15x - 2) ft
Length of segment QR = (5x + 3) ft
Since, PR = PQ + QR
5 = (15x - 2) + (5x + 3)
5 = 20x + 1
20x = 4
x = [tex]\frac{4}{20}[/tex]
x = 0.2
PQ = 15x - 2
= 15(0.2) - 2
= 3 - 2
= 1 ft
QR = 5x + 3
= 5(0.2) + 3
= 1 + 3
= 4 ft
Simplify the following expression by combining like terms 5x^2 + 6x - 3 + 4x^2 + - 8x +2
Find the slope of the line parallel to the given line
y=8/3x-5
Answer:8/3
Step-by-step explanation: parallel lines have the same slope
Can someone answer fast.plsss
Answer:
a
Step-by-step explanation:
sec (thita) = squrt (5)
squaring on both sides:
sec^2 (thita) = 5 - equation 1
1 + tan^2 (thita) = 5
tan^2 (thita) = 4
tan (thita) = 2.
= tan (thita) - squrt(5)sin(thita)
= 2 - squrt(5) x 2/ squrt(5)
= 0
from eqn - 1
sec(thita) = squrt(5)
cos(thita) = 1/ squrt(5)
sin(thita) = squrt ( 1- 1/(squrt (5))^2)
sin(thita) = 2/ squrt(5) .
57 toys are split into groups of 4 toys. What question do we need to answer here? pls answer quick! this test is already missing and I need to complete it! please no wrong answers :(( it's due in like 20 mins :/
Answer:
how many toys are in each group?
the ratio of boys to girls in a class is 4 : 5
a) what is the fraction of boys in the class
b) what is the fraction of girls in the class
Answer: 4/9 of the class are boys and 5/9 of the class are girls.
Step-by-step explanation:
There are 9 nine students in total in the class since 4 + 5 = 9.Input the amount of boys and girls there are in the class in the numerator and have 9 as the denominator. 4/9 of the class are boys and 5/9 of the class are girls.Points P, R, and S, are collinear such that R lies on PS. It is known that the ratio of
PR: RS = 1/3}. Find the location of coordinate R if P is located at (-2,-6) and is
located at (10,30).
Answer:
1,3
Step-by-step explanation:
Sorry if my English is bad
or if my answer is wrong but from my understanding,
as you can recognize from the photos, we need to understand what a collinear is. Collinear are points that are lying in the same straight line. Thus, we can transform the ratio to fractions which means 1 : 3 into 1/3
Hence, the coordinate R is 1/3 between P and S.
Therefore, to determine coordinate R, we must use the formula that is provided. P is (X1, Y1), S is (X2,Y2), M1 is 1 or the Numerator and M2 is 3 or The denominator.