What is the first four terms of the geometric sequence where a1=−8 and r=−2 ?
(explanations appreciated!)
Answers
Answer:
-8, 16, -32, 64
Step-by-step explanation:
a1 = -8
r = -2
a2 = -8(-2)=16
a3 = -8(-2)²=-8(4)=-32
a4=-8(-2)³=-8(-8)=64
Related Questions
8x+5=6x+1 if you know can you please help thank youuu
Answers
Answer:
x = -2
Step-by-step explanation:
Subtract 5 from both sides (8x + 5 -5 = 6x + 1 -5);Subtract 6x from both sides (8x - 6x = 6x - 6x - 4);Divide both sides by 2 (2x / 2 = -4 / 2);Answer: x = -2equivalent fractions,please help me!!
Answers
Answer:
54/81 is the answer
Step-by-step explanation:
Square the binomial: (4x-5)^2
Answers
16x2+40x+25
Answer: 16x^2 - 40x + 25
Step-by-step explanation:
How can the logarithmic expression be rewritten? Select True or False for each statement. Statement True False 4 log3 c + 4 log; d = log2 (cd)* å (In a + In b) = ln Va464 3 Ine + 2 ln $ = In ( ) 0
Answers
Answer:
TrueFalse FalseHope it helps :)
The first two logarithmic expressions are true and the third one is false.
What is a logarithm?The logarithm is exponentiation's opposite function in mathematics.
This indicates that the exponent to which b must be raised in order to obtain a number x is the logarithm of x to the base b. For instance, because 100 = 10², the logarithm of 100 in base 10 is 2, or log10 = 2.
Given, [tex]4log_3c + 4log_3d = 4log_3cd[/tex].
= [tex]log_3(cd)^4[/tex] it is true.
[tex]\frac{3}{4}(lna + lnb) = \frac{3}{4}ln(ab)[/tex].
= [tex]ln(ab)^{\frac{4}{3}}[/tex] it is true.
[tex]3lne + 2lnf = lne^3 + lnf^2[/tex].
= [tex]ln(e^3f^2)[/tex] it is false.
learn more about logarithms here :
https://brainly.com/question/28346542
#SPJ2
If 8 cents are needed to buy 10 pebbles, how many dollars are needed to buy 205 pebbles?
Answers
Answer:
Hello There!!
Step-by-step explanation:
If 8 cents=10 pebbles then do 205 divided by 10 which is 20.5 . So, 8×20.5=164 dollars.
(8×20.5=164) 8 cents=10 (10×20.5=205)
164 dollars=205
Therefore,the answer is 164 dollars.
hope this helps,have a great day!!
~Pinky~
The volume of a cylinder is 32.25 cubic inches. If a cone has the same height and radius as the cylinder, what is its volume?
A. 8.06 cu. in.
B. 10.75 cu. in.
C. 21.5 cu. in.
D. 32.25 cu. in.
Answers
Answer:
B. 10.75 cu. in.
Step-by-step explanation:
Vol. of cylinder = π[tex]r^{2}[/tex]h = 32.25
If the cone has the same radius and height,
then the vol. of the cone = π[tex]r^{2}[/tex]h/3 = 32.25/3 = 10.75 cu. in.
HELP PLSPLSPSL check image
Answers
Answer:
D
Step-by-step explanation:
Necesito ayudaaa por favor y gracias
Answers
Answer:
sorry, just coming here to points, couldn't really answer your question anyway.
Step-by-step explanation:
Jerry is 5 years less than half of Mary's age. The sum of their ages is 22. How old is each person?
Answers
Answer:
Mary= 18
Jerry = 4
Step-by-step explanation:
Half of mary's age is 9, minus 5 =4.
18+4=22
Answer:
Equation 1: m/2 - 5 = j
Equation 2: m + j = 22
Mary's age: 18
Jerry's age: 4
Step-by-step explanation:
m/2 - 5 = j
18/2 - 5 = j
9 - 5 = 4
m + j = 22
18 + 4 = 22
22 = 22
Line m intersects lines r,s,t, and w. Based on the given angles, which statement must be true?
Answers
OPTIONS:
A. Lines r and s are parallel.
B. Lines r and t are parallel.
C. Lines r and w are parallel.
D. Lines s and w are parallel
*See diagram in the attachment below
Answer:
B. Lines r and t are parallel.
Step-by-step explanation:
105° lies outside of line r when line m cuts across line r. The adjacent angle that forms a linear pair with 105° would be:
180° - 105° = 75°
Thus, the angle formed outside line t when line m cuts across line t is also equal to 75°.
75° at line t is a matching corner with the 75° at line r. Therefore, lines r and t are parallel.
Which of the binomials below is a factor of this trinomial?
4x2 + 21x + 5
A. 4x + 5
B. 4x-1
C. 4x + 1
D. 4x - 5
Answers
Answer:
c
Step-by-step explanation:
Answer:
C. 4x+1
Step-by-step explanation:
consider the first six terms
in the sequence -11,-4, 3, 10, 17,24
Answers
Answer:
Next term is 31
Step-by-step explanation:
The numbers keep going up by 7.
If this has helped you please mark as brainliest
Tornadoes usually come from a part of the storm that is low to the ground. *
True
or
False
Answers
Answer:
false
Step-by-step explanation:
they form when winds conbine a certain way
Lee cada situacion y escribe la razon correspondiente
Answers
I need some help I have no idea
22L/min= xL/hour
Complete the conversion.
Answers
Answer:
may be 1320L/hr
Step-by-step explanation:
not sure
Answer: X = 1320L/Hour
Explanation : 22L/min = 1320L/Hour
What is the equation that represents the line that passes through the points (9, -2) and (12, -5)?
Answers
Hi there!
[tex]\large\boxed{y = -x + 7}[/tex]
To begin, we must use the slope formula to calculate the slope of the line:
[tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex]
Plug in the coordinates:
[tex]m = \frac{-5-(-2)}{12-9}[/tex]
Simplify:
[tex]m = \frac{-3}{3} =-1[/tex]
Recall that the equation for a line in point-slope form is:
y - y1 = m(x - x1)
Plug in coordinates into the equation along with the slope:
y - (-2) = -1(x - 9)
Simplify:
y + 2 = -x + 9
y = -x + 7
Tara picks out 4 paint colors (beige, blue, green, and gray) to paint 4 rooms in her house (living room, dining room, main bedroom, and kitchen).
What is the probability that tara first paints her bedroom green?
ASAP!!!!!
Answers
im going to guess it's [tex]\frac{1}{4}[/tex]
Solve for y
6x+2y=18
y=_______
Answers
Answer:
y = 18 - 6x / 2 OR y = 9 - 3x
Step-by-step explanation:
Make y the subject of formula.
Find the equation to the line below.
1
[?
Х
y =
Answers
Answer:
y= -4/3x
Step-by-step explanation:
hope this helps :)
Priya has 5 pencils, each x inches in length. When she lines up the end of the pencil to the end, they measure 34.5 inches.
Select all the equations that represent this situation.
Select all that apply:
A. 5 + x = 34.5
B. 5x = 34.5
C. 34.5 ÷ 5 = x
D. 34.5 − 5 = x
E. x = (34.5) ⋅ 5
PLEASE HELP ITS URGENT!
Answers
Answer:
B. 5x = 34.5 the pencil to the end
Leroy took a trip to Alaska. His airfare was $243 and he spent $72 each day while
he was there. Which expression can he use to help him find the cost of the trip?
(x = number of days spent in Alaska) *
Answers
Answer:
72x+243
Step-by-step explanation:
That expression will get you the total amount of money spent
What is the slope of the line that passes through the points listed in the table?
x | y
5 | 8
6 | 13
A. -3
B. 3
C. 5
D. 7
Answers
Answer: -3
Step-by-step explanation:
The slope of a line characterizes the direction of a line. To find the slope, you divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points.
Write an equation of a line in y = mx + b form that passes through the points (5,3)
and (15,1)
Answers
Answer:
[tex]y = - 0.5x + 5.5[/tex]
Step-by-step explanation:
finding the slope
[tex] \frac{3 - 1}{5 - 15} = - \frac{1}{2} [/tex]
m is the slope
[tex] - 0.5x + b = y[/tex]
we can get y from any point but that goes for x,too
[tex] - 0.5(5) + b = 3 \\ b = 2.5 + 3 \\ b = 5.5[/tex]
the equation is
[tex]y = -0.5x + 5.5[/tex]
when a number is doubled and then eight added it became 60 what is the number
Answers
Answer:
26
Step-by-step explanation:
Answer:
26
Step-by-step explanation:
Let the number be x.
Now,
2x + 8 = 60
2x = 60 - 8
x = [tex]\dfrac{52}{2}[/tex]
x = 26
Hence, the number is 26.
A math teacher randomly selects one student in a class to write a probability question on a chalkboard. The teacher then randomly selects a different student to answer the probability question. There are 10 boys in the class, and the ratio of boys to girls is 5:8. Find the probability that the teacher selects a girl first and a girl second. Write your answer as a decimal rounded to the nearest thousandth.
Answers
Answer:
3:5
Step-by-step explanation:
a puzzle is shown below. what is the area of the shaded portions of the puzzle?
Answers
Answer:
it's a parallelogram
Step-by-step explanation:
May ot helpful
347 students said that they played sports. 58% said that they played basketball. How many students play basketball?
Answers
Answer:
201 students play basketball.
Step-by-step explanation:
total students who played sports = 347
58 % played basketball.
That is ,
[tex]\frac{58}{100} \times 347 = 201.26[/tex]
Since number of students cannot be in decimals we take the nearest whole number = 201.
Factor the expression.
10g3 + 15g2 – 12g – 18
(5g2 + 6)(2g – 3)
(5g2 + 3)(2g – 6)
(5g2 – 3)(2g + 6)
(5g2 – 6)(2g + 3)
Answers
Answer:
Hopes this helps!!!!!!! :D
Step-by-step explanation:
48g-1820g^2-18g-1820g^2-54g-1820g^2+54g-1820g^2+18g-18All i did was plug in the problems to the caluculator lol
Help and show workings out I will give your brainlest
Answers
Answer:
87.5 ml tube of toothpaste slightly offers the better value of money.
Step-by-step explanation:
In order to know the better value of money, we need to find the volume of each toothpaste for 1p.
For first tube of toothpaste:
87.5 ml costs 49p
Therefore, for 1 p = 87.5/49 = 1.78571429 = 1.8 ml
For second tube of toothpaste:
125 ml costs 72 p
Therefore, for 1 p = 125/72 = 1.73611111 = 1.7 ml
Since, 1.8 ml > 1.7 ml
So, 87.5 ml tube of toothpaste slightly offers the better value of money.
Tristan has 3 bottles of water and 4 bottles of juice in his ice chest. What is the probability that he will reach into the chest and pull out two bottles of juice in a row if he does not replace the first one?All answers should be given as a fraction in simplest form!
Any help would be appreciated, Thanks!!!
Answers
Answer:
Step-by-step explanation:
P(j=1st) =4/7
P(j=2nd) =3/6
P(j two in a row) = (4/7)*(3/6)= 12/42 = 6/21 = 2/7
P(j two in a row) = 2/7