Answers
Answer:
- 1364
Step-by-step explanation:
The n th term of a geometric series is
[tex]a_{n}[/tex] = a[tex](r)^{n-1}[/tex]
where a is the first term and r the common ratio
4[tex](-2)^{n-1}[/tex] ← is an n th term
with a = 4 and r = - 2
The sum to n terms of a geometric series is
[tex]S_{n}[/tex] = [tex]\frac{a(r^{n}-1) }{r-1}[/tex], thus
[tex]S_{10}[/tex] = [tex]\frac{4((-2)^{10}-1) }{-2-1}[/tex]
= [tex]\frac{4(1024-1)}{-2-1}[/tex]
= [tex]\frac{4(1023)}{-3}[/tex]
= [tex]\frac{4092}{-3}[/tex]
= - 1364
Related Questions
last week Tom spent 1/10 hour less time than normal exercising. How much time did Tom spend exercising last week explain?
Answers
Answer: 54 minutes
Step-by-step explanation: Given that Tom spent 1/10 hour less time than normal exercising.
Let the normal exercising hour = H
Tom spent 1/10 hour less time than normal exercisin. That is
Tom spent = H - 1/10H
Tom spent = 9/10 hours
The much time Tom spent exercising last week will be
9/10 × 60 = 54 minutes
Which 2d shape can be rotated about the y axis to create a cone
Answers
Answer:
a triangle
Step-by-step explanation:
Answer:
a right triangle
What is the slope of the graph? (Example: 2/3,-4,-2/9)
Answers
Answer:
7/9
Step-by-step explanation:
Answer:
The slope is -1
Step-by-step explanation:
Slope is rise/run
In the picture the graph 'raises' by -1 (Because its going down) and runs by 1
so the slope is -1/1 or -1
A patient takes a medication with a half life. Initially, there are 11 milligrams of the medication in the patient's system. After 70 minutes there are 7 milligrams. After how many minutes will there be only 3 milligrams remaining in the patient’s system? here be after 10 hours? Round your answer to the nearest whole number, do not include units.
Answers
Answer:
201
Step-by-step explanation:
The situation can be represented by the formula N(t)=11e(−kt) where t represents time in minutes and k is a constant.
in a wildlife park there were 18 gray wolves after three years there were 27 gray wolves what is the precent increase
Answers
From 18 wolves to 27 wolves, what was the increase? 27 - 18 is 9, so the increase was 9.
How much of 18 is 9? 9 / 18 is equal to 1 / 2, which is 0.5. To make 0.5 a percent we multiply by 100.
0.5 times 100 is 50%.
PLEASE HELP ASAP!!!! 50 POINTS!!
Create a factorable polynomial with a GCF of 2y. Rewrite that polynomial in two other equivalent forms. Explain how each form was created.
Answers
Answer:
Hope this helps!!
Step-by-step explanation:
2ya and 2yb where a and b have no common factors and a and b are polynomaals
a=(x+2)(x+3)
b=(x+4)(x+5)
no common factors betwen a and b
so
2ya=2y(x+2)(x+3)=2yx²+10xy+12y
2yb=2y(x+4)(x+5)=2yx²+18xy+40y
the 2 polynomials are 2yx²+18xy+40y and 2yx²+10xy+12y
Answer:
The GCF of a polynomial is the greatest factor which is common to all the terms of the polynomial.
Thus, an example of a polynomial with a GCF of 2y is
The above polynomial can also be rewritten as
This form of the polynomial is obtained by factoring out the GCF of the polynomial.
The two lines $y = 2x - 13$ and $3x+y = 92$ intersect. What is the value of $x$ at the point of intersection?
Answers
Answer:
21
Step-by-step explanation:
At the intersection of two lines, the x's are equal and the y's are equal. We may set 2x - 13 = 92 - 3x to find an x, where the y's are equal.
2x - 13 &= 92 - 3x
5x = 105
x =21
find the area of the shaded porrion
Answers
Answer: 111.72 m^2 if they want round its 112
Is from O to C 14m
A=pixr^2
3.14x14^2= 615.44 m/2 half circle = 307.72
Area of triangle A= 1/2bh. .5x28x14=196
307.72-98=196= 111.72 m^2
Step-by-step explanation:
Which ordered pairs could be points on a line parallel to the line that contains (3,4) and (-2,2) check all that apply.
Options:
(-2,-5) and (-7,-3)
(-1,1) and (-6,-1)
(0,0) and (2,5)
(1,0) and (6,2)
(3,0) and (8,2)
Answers
Answer:
B: (-1, 1) and (-6, -1)
D: (1, 0) and (6, 2)
E: (3, 0) and (8, 2)
Step-by-step explanation:
Hope this helps! :D
Answer:
there' yo answer. B,D,E
Find the midpoint of the segment in the diagram
Answers
Answer:
(-1/2,1/2)
Step-by-step explanation:
We have the two endpoints
(-3,-2) and ( 2,3)
To find the x coordinate of the midpoint, add the x coordinates of the endpoints and divide by 2
(-3+2)/2 = -1/2 =-1/2
To find the y coordinate of the midpoint, add the y coordinates of the endpoints and divide by 2
(-2+3)/2 = 1/2
The midpoint is (-1/2,1/2)
LOTS OF POINTS, EASY QUESTION
Answers
Answer:
1/3
Step-by-step explanation:
Take the model size and divide by the original size by using the length
7/21 = 1/3
The scale factor is 1/3
We check by using the width
5/15 = 1/3
Using the distributive property to transform 4(x +3) = 3(3x -1) how do I substitute 3 for x to see if it’s a true statement?
Answers
4x + 12 = 9x - 3
x = 3
4(3) + 12 = 9(3) - 3
12 + 12 = 27 - 3
24 = 24 ✔️
Answer:
4(3+3)=3(3(3)-1)
Step-by-step explanation:
1) plug in the three
2) distribute
3) see if the answers gotten are the same if not than the statement is wrong
I know it looks a bit complicated but its not once you get the hang of it
Determine the value of the variable in the simplified expressions. What is the value of x in this simplified expression? x = What is the value of y in this simplified expression? y =
Answers
Answer:x=7 y=5
Step-by-step explanation:
I just took it, sorry I'm not good at math and just guessed until I got it right for this answer.
Answer:
-4
Step-by-step explanation:
magic
What is the domain of the function y=2ex graphed below?
Answers
Answer:
I´m pretty sure its all real numbers
Step-by-step explanation:
Well I already know that y=0,and the domain would be (-∞,∞)
hope this helps!
Answer: d. all real numbers!!
Step-by-step explanation:
Edge
Simplify [tex]5\sqrt{81q^5}[/tex]
Answers
Answer:
45√q^5
Step-by-step explanation:
15x + 35 = 65 * what does X=
A. x = 2
B. x = -2
C. x = 5
D. x = 50
Answers
Answer:
A
Step-by-step explanation:
15x+35=65
15x=30
x=2
Answer: X= 2
Step-by-step explanation:
We know that 15 + 35 = 50.
But we still need to figure out the X, out of the options multiply it by 2 will get you 30. If we have 30 then we can complete our equation.
15x2 = 30 + 35 = 65
Hope this helps :D
Can you explain it and help me out pleasssee
Answers
B is the correct answer.
Answer:
B.
Step-by-step explanation:
Answer:
B. x= -1, x=3
Step-by-step explanation:
4x²-8x -12 =0 /:4
x² - 2x -3=0
x² - 3x + x -3 = 0
x(x-3) + 1(x-3)=0
(x-3)(x+1)=0
x-3 =0 or x+1 =0
x=3 and x = -1
Please answer this question! I will try to give brainlist if possible. I beg you, I have asked this question three times!
Answers
Answer:
2/7
Step-by-step explanation:
Even numbers: 6, 8, 10, 20
P(E1) = 4/7
P(E2) = 3/6
4/7 × 3/6
2/7
Which equation is equivalent to 2x + 10 = 6
A)
2x = 4
x + 5 = 3
(
x + 10 = 3
2x + 6 = 10
Answers
x=-2
Solve the equation if 0 degrees<=x<=360 degrees.
sinx= -sqrt 2/2
Answers
Answer:
Step-by-step explanation:
hello :
sinx = - -√2/2 0°≤x≤360°
x = 225°
x= 315°
The value of x in this equation is 315°
What are trigonometric functions?In mathematics, trigonometric functions are real functions that relate an angle of a right-angled triangle to ratios of two side lengths. The six trigonometric functions are Sine, Cosine, Tangent, Secant, Cosecant, and Cotangent.
Given here:
Sinx= -√2/2
x =sin⁻¹( -√2/2)
x = -45°
Therefore positive angle of x is given by 360-45=315°
Hence, The value of x in this equation is 315°
Learn more about trigonometric functions here:
https://brainly.com/question/6904750
#SPJ3
find the simple interest on $5,000 at 6% interest for 3.5 years.
Answers
Look at the attached picture ⤴
Hope it will help u..
A paving company was hired to make a 4 mile section of the highway. They need 700 tons of concrete to complete the job. How many pounds of concrete will they need to repave the highway?
Answers
Answer:
they will need 1,400,000
Step-by-step explanation:
1 ton is 2,000 pounds. so 700x 2,000=1,400,000
Which best describes the scale factor for each
dilation?
Answers
Can you give us the options so we can try to help you?
These are the dilations
What is the median of the set of values?
591 27 3 1 8 8 1 3
Answers
Answer:
The median is 5.5.
How to convert 7 over 9 to a decimal?
Answers
help me pls ill give brainly
64−(3y+8y+y)÷40=37
Answers
64 - (3y + 8y + y) / 40 = 37
Simplify 3y + 8y + y
64 - 12y / 40 = 37
Add 12y / 40 to both sides and subtract 37
27 = 12y / 40
Multiply both sides by 40
1080 = 12y
Divide both sides by 12
90 = y
Answer:
y=90
Step-by-step explanation:
Collect the like terms first (3y, 8y, and y) and add them together, which gives you 12y. Equation looks like this so far 64-12y/40=37
Divide the -12 by 40, which can be reduced to -3/10.Equation so far: 64-3/10y=37
Multiply each side by 10 to cancel out the 10 in -3/10y. Equation so far: 640-3y=370
Use inverse operations to move the 640 with the 370. Equation so far: 3y=370-640
Subtract 640 from 370, which gives you -270. Then you'll have -3y=-270 and divide both sides by -3.
Angle of elevation __________ Angle of depression
Select one:
a. is complementary to
b. equals the
c. is supplementary to
d. >
Answers
Answer:d
Step-by-step explanation:
A book is markdown by 28% from an original price of $19.50. What is the new price?
Answers
Answer:
$14.04
Step-by-step explanation:
19.50 - 28%·19.50 =
= 19.50 - 28·19.50/100
= 19.50 - 546/100
= 19.50 - 5.46
= $14.04
What is the volume of a 3-foot-tall cylindrical trash can with a 1-foot radius?
Answers
Answer:
The volume of the cylinder in feet is
V= 9.43ft³
Step-by-step explanation:
Step one
The formula for the volume of a cylinder is given as
V=πr²h
Where r= radius
h= height
Step two
Given Data
Radius = 1foot
Height = 3 feet
Substituting in our formula we have
V=3.142*1²*3
V= 9.43ft³
Answer:
i just got this question... It was B
3pie ft^3
Step-by-step explanation:
Which point is a solution to the inequality? (–2, 1) (–1, 1) (0, One-half) (3, One-half)
Answers
Answer:
The answer is D
Step-by-step explanation:
Answer: The answer is (3, One-half) or option D
Step-by-step explanation: