Answer:
Tn=a+(n-1)d
Tn=-2+(n-1)8
Tn=-2+8n-8
Tn=8n-10
Which of the following is equal to the expression below?
A.
B.
C.
D.
Answer: I think it might be B. Sorry if incorrect
Step-by-step explanation:
Simplify this problem for me
Answer:
[tex]\displaystyle E=e^{5x}[/tex]
Step-by-step explanation:
Exponentials
Properties of exponentials:
[tex]x^ax^b=x^{a+b}[/tex]
[tex]\frac{x^a}{x^b}=x^{a-b}[/tex]
Simplify:
[tex]\displaystyle E=\frac{e^{-2}\cdot e^{2x+3}}{e^{1-3x}}[/tex]
Multiplying in the numerator:
[tex]\displaystyle E=\frac{e^{-2+2x+3}}{e^{1-3x}}=\frac{e^{+2x+1}}{e^{1-3x}}[/tex]
Applying the quotient:
[tex]\displaystyle E=e^{2x+1-(1-3x)}[/tex]
Operating:
[tex]\displaystyle E=e^{2x+1-1+3x}[/tex]
Simplifying:
[tex]\boxed{\displaystyle E=e^{5x}}[/tex]
what's 15/3 times 4? i really need this answer and its telling me to type more :/
Answer:
20
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
15/3 x 4/1 = 60/3
60/3 simplified is 20/1 or 20! Hope this helps!
Madison, John, and Michael had a challenge to see who could bike the farthest in one day. Madison biked 12 miles, John biked 4 times as many miles as Michael and Michael biked 2 times as many miles as Madison. How many miles did John bike?
Answer:
96 Miles
Step-by-step explanation:
PLZ HELP WITH THESE AND FAST!!!!!!!!!!!!
Answer:
(11+4)/3*square root of 64=40
Step-by-step explanation:
11+4=15
15/3=5
the square root of 64 is 8
5*8=40.
HELP ASAP PLEASE! I need to write an equation in point-slope form of the line that passes through the points below
Step-by-step explanation:
step 1. pick one of the points: (-2, 5)
step 2. calculate the slope of the points (-2, 5) and (1, -1). m = (-1 - 5)/(1 - (-2)) = -6/3 = -2
step 3. plug them in: y - y1 = m(x - x1) = y - 5 = -2(x - (-2)).
A tent that initially sold for $68.00 is on sale for 21% off. What is the sale price of the tent?
a. $41.28
b. $47.00
c. $47.00
d. $323.81
Answer:
Hey!
Try this!
Take the original price.
Divide the original price by 5.
Alternatively, divide the original price by 100 and multiply it by 20.
Subtract this new number from the original one.
The number you calculated is the discounted value.
Enjoy your savings!
Answer:
Step-by-step explanation:
100-21 gives you 79 so 68.00- .79, however, that gives you 53.72
Lorna can walk 4 kilometers in 1 hour. at this rate how far can Lorna walk in 3 1/2 hours?
Answer:
14km
Step-by-step explanation:
What is the remainder of x^4-6x^3-10x^2+20x+15
divided by (x + 2)
0-1
0-49
O 15
0 -17
Answer:
0 - 1
Step-by-step explanation:
U can do by simple division method to get the answer
28.8 ÷ 9 Use compatible numbers to estimate the quotient
Please help me- .
Answer:
3.2
Step-by-step explanation:
Answer: 28.8 divided by 9 is 3.2
Step-by-step explanation: PLEASE MARK ME BRAINLIST!
A small box measures 6 in. by 4 in. by 3 4 3 4 in. high. Find the volume of the box.
Answer:
Step-by-step explanation:
6*4*3434=24*3434=82416
Find the value of y for the given value of x.
y=2x−3;x=−4
y=
Step-by-step explanation:
Given
y = 2x - 3
if x = - 4 Then
y = 2 * ( -4) - 3
= -8 - 3
= - 11
Hope it will help :)
The value of y when the value of x is equal to the negative number 4 is negative 11 (-11).
What is an unknown variable?Unknown variables are used to find the unknown values of the problem using the algebraic expressions.
The expression for the variable x and y are given as,
[tex]y=2x-3[/tex]
The x value for the above expression is given as,
[tex]x=-4[/tex]
The value of y for the above value of x has to be found out. Put the value of x in the given expression to find the value of variable y as,
[tex]y=2(-4)-3[/tex]
Solve it further as,
[tex]y=2(-4)-3\\y=-8-3\\y=-11[/tex]
Hence, the value of y when the value of x is equal to the negative number 4 is negative 11 (-11).
Learn more about the unknown variable here;
https://brainly.com/question/1235185
76% of U.S. adults think that political correctness is a problem in America today. You randomly select six U.S. adults and ask them whether they think that political correctness is a problem in America today. The random variable represents the number of U.S. adults who think that political correctness is a problem in America today. Answer the questions below.
Answer:
[tex]E(x) = 4.56[/tex] --- Mean
[tex]s^2 = 1.0944[/tex] --- Variance
[tex]s = 1.0461[/tex] --- Standard Deviation
Step-by-step explanation:
See Comment for missing details
Given
[tex]p = 0.76[/tex] --- proportion
[tex]n = 6[/tex] -- sample
Solving (a): The mean; E(x)
This is calculated as:
[tex]E(x) = n * p[/tex]
Substitute values for n and p
[tex]E(x) = 6 * 0.76[/tex]
[tex]E(x) = 4.56[/tex]
Solving (b): The variance; s^2
This is calculated as:
[tex]s^2 = n*p*(1-p)[/tex]
Substitute values for n and p
[tex]s^2 = 6 * 0.76 * (1-0.76)[/tex]
[tex]s^2 = 6 * 0.76 * 0.24[/tex]
[tex]s^2 = 1.0944[/tex]
Solving (c): The standard deviation; s
This is calculated as:
[tex]s = \sqrt{s^2[/tex]
Substitute value for s^2
[tex]s = \sqrt{1.0944[/tex]
[tex]s = 1.0461[/tex]
What is the missing reasons in the proof?
answer:
substituion property or transitive property
step-by-step explanation:
we already knew that <ABC was 90 degrees, therefore all we had to do was substitute, therefore transitive property-
The first three terms of a geometric sequence are as follows.
2, 10, 50
Find the next two terms of this sequence.
Answer:
250, 1250
Step-by-step explanation:
Since 10/2 = 50/ 10 = 5, the common ratio = 5 So the next term in the sequence is found by multiplying the last term by 5.
Therefore, 50 x 5 = 250 and 250 x 5 = 1250. So, the next two terms in your sequence are 250 and 1250
The ordered pairs model an exponential function, where b is the function name and q is the input variable.
{(1, 30), (2, 120), (3, 480), (4, 1920)}
What is the function equation in sequence notation?
Enter your answer in the box.
Answer:
30*4^q-1
Step-by-step explanation:
I just did the test and it said I got it right.
Express the ratio below in its simplest form.
9:9:3
Answer:3:3:1
Step-by-step explanation:divide by 3
-4+2(5k-6)=-3k-39
need it with the steps
y(2y + 5) = 0
a 0 or 5/2
b 0 or - 5/2
c 0 or - 2/5
d 0 or 2/5
e 0 or -5
Answer:
option B
Step-by-step explanation:
option B is the correct answer of this question.
plz mark my answer as brainlist plzzzz if you get it right .
Answer:
I'm going with option A
Step-by-step explanation:
A cell phone provider offers a plan that costs $40 per month plus $0.20 per text message sent or received. A comparable plan costs $70 per month but offers unlimited text messaging.
Answer:
For, 250 messages the plans cost the same. Under 250 messages, plan A is cheaper.
Step-by-step explanation:
Giving the following information:
Plan A:
Fixed costs= $40
Variable cost= $0.2
Plan B:
Fixed cost= $40
I assume that we have to determine the indifference point, where the two plans cost the same.
First, we need to establish the total cost equations
Plan A= 20 + 0.2x
Plan B= 70
x= number of messages
Now, we equal both formulas and isolate x:
20 + 0.2x = 70
0.2x= 50
x= 250
For, 250 messages the plans cost the same. Under 250 messages, plan A is cheaper.
Use the slope formula to find the slope of the line through the points (−2,4) and (0,9).
Answer:
The slope of the line is [tex]\frac{5}{2}[/tex]
Step-by-step explanation:
Hi there!
We are given the following points: (-2, 4) and (0, 9)
We want to find the slope (m) of these 2 lines, and the problem asks us to use the slope formula
The slope formula is given as [tex]\frac{y_2-y_1}{x_2-x_1}[/tex], where [tex](x_1, y_1)[/tex] and [tex](x_2, y_2)[/tex] are points
We have everything we need to calculate the slope, but let's label the values of the points to avoid any confusion.
[tex]x_1=-2\\y_1=4\\x_2=0\\y_2=9[/tex]
Now substitute these values into the formula to find the slope.
m=[tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
m=[tex]\frac{9-4}{0--2}[/tex]
Simplify.
m=[tex]\frac{9-4}{0+2}[/tex]
Add (or subtract) the numbers together
m=[tex]\frac{5}{2}[/tex]
The slope of the line is [tex]\frac{5}{2}[/tex]
Hope this helps!
See more on finding the slope from 2 points here: https://brainly.com/question/26738734
A skirt originally cost $28. Alicia pays $21 for the skirt during a scale. What percent does Alicia save with the sale? (helpp )
Answer:
25% is the answer.,....
money Alicia save= 28-21= 7
percentage Alicia saves with the sale= 7/28*100
= 25%
Answer:
28 - 21 = 7
Your answer is $7
Given that the triangles are similar, find the value of x. Find the length of NR.
S
T
40
60
R
2x-2
8
N
M M
X
NR =
Given:
Figure of similar triangles.
To find:
The value of x and the measure of NR.
Solution:
In triangle RST and RMN,
[tex]\angle SRT\cong \angle MRN[/tex] (Vertically opposite angles)
[tex]\angle RST\cong \angle RMN[/tex] (Alternate interior angles)
[tex]\Delta RST\sim \Delta RMN[/tex] (By AA property of similarity)
We know that, corresponding sides of similar triangles are proportional.
[tex]\dfrac{RS}{RM}=\dfrac{RT}{RN}[/tex]
[tex]\dfrac{40}{8}=\dfrac{60}{2x-2}[/tex]
[tex]5=\dfrac{60}{2x-2}[/tex]
[tex]2x-2=\dfrac{60}{5}[/tex]
On further simplification, we get
[tex]2x=12+2[/tex]
[tex]x=\dfrac{14}{2}[/tex]
[tex]x=7[/tex]
The value of x is 7.
Now,
[tex]NR=2x-2[/tex]
[tex]NR=2(7)-2[/tex]
[tex]NR=14-2[/tex]
[tex]NR=12[/tex]
Therefore, the value of x is 7 and the measure of NR is 12 units.
The width of a rectangle is five more than two times the length. The perimeter of the rectangle is 106 inches. What are the dimensions of the rectangle?
ABCD is a parallelogram. Find the measure of ABC.
12°
B
130°
A
389
12°
с
38°
50°
Answer:
50°
Step-by-step explanation:
As we know that the opposite angles of parallelogram are equal so
< ADC = < ABC
< ABC = 38° +12°
< ABC = 50°
Hope it will help :)
Please help! image is shown below
Answer:
I think its 15
Step-by-step explanation:
25 + 25 = 50
So 15 + 15 = 30
pls help me!!!!!!!!!!!!!!!!!
Answer:
1/4
Step-by-step explanation:
because when u add the demical u get the answer b
Given the relation y = 3x^2 + 1, if the input is 4, what is the output?
Answer:
Step-by-step explanation:
y=3(4)²+1
=48+1
=49
Answer:
The output is 49
Step-by-step explanation:
If the input is 4, then x = 4.
Replace x with 4 and you have the equation:
3(4)^2 + 1 = 49
Because Y is the output, and Y = 49, the output is 49
Suppose that the probability that your mail is delivered before 2 pm. 90. What is the probability that your mail will be delivered before 2 pm for two consecutive days? Give your answer as a decimal.
Thank you!
Answer:
Step-by-step explanation:
1. The probability that your mail is delivered before 2 pm is 0.9, so the probability that the mail is delivered at 2 pm or after 2 pm (so not before 2 pm) is 1-0.9=0.1.
Remark: 0.9=9/10=90/100=90%, and 0.1 is 10%
2. Probability of the mail being delivered before 2 pm for 2 consecutive days is
3. take a look at the picture attached, the tree diagram is another method we could use.
Answer:
.81
Step-by-step explanation:
I have acellus too and this is the correct answer. I can't explain it very well. Sorry!
what is the slope of the line shown below?
Answer:
A
Step-by-step explanation:
m = (-7 - 6 ) / (-5 - 1)
m = -13 / -6
m = 13/6