Answer: Is it...
v=−y/9+128/9?
A large company put out an advertisement in a magazine for a job opening. The first day the magazine was published the company got 70 responses, but the responses were declining by 10% each day. Assuming the pattern continued, how many total responses would the company get over the course of the first 23 days after the magazine was published, to the nearest whole number?
Answer:
638
Step-by-step explanation:
The total number of responses is the value of a geometric series with first term 70 and common ratio 1-10% = 0.90. That sum is given by the formula ...
Sn = a1·(1 -r^n)/(1 -r)
where r is the common ratio, n is the number of terms, and a1 is the first term.
The sum of n=23 terms of the series with a1=70 and r=0.9 is ...
S23 = 70·(1 -0.9^23)/(1 -0.9) = 700(1 -0.9^23) ≈ 638
The model predicts 638 total responses over the first 23 days.
Solve by Substituting the equation -4x+y=-7, -8x+2y=-14
Step-by-step explanation:
I solved it using substitution method
Answer:
All Real Numbers
Step-by-step explanation:
Find the original price of a CD if it was discounted by 5% and was sold for $21.84.
Answer:
$ 22.98
Step-by-step explanation:
discounted = 5%
sold at = 100 % - 5%
= 95%
let the original price of CD be x
= 95% of x =21.84
= 95/100 × x = 21.84
= x = 21.84 × 100/95
= x = 2184/95
= x = $22.98Please mark my answer the brainliest and rate me 5 star and follow me.please please please please please please
The total cost of 7 shirts and 5 pairs of pants is $517. The total cost of a shirt and a pair of pants is $89. How much does a pair of pants cost?
Answer:
pair of pants = $53
Step-by-step explanation:
s = shirts
p = pair of pants
eq = equation
eq 1: 7s + 5p = 517
eq 2: s + p = 89
multiply the equation 2 by 7
eq 3: 7s + 7p = 623
negate equation 1 and add it to the eq 3
7s + 7p = 623
+ -7s - 5p = -517
2p = 106
p = 53
How nice are your teacher 1-20 and what grade was your favorite
Answer:
Modify short_names by deleting the first element and changing the last element to Joe.
Sample output with input: 'Gertrude Sam Ann Joseph'
['Sam', 'Ann', 'Joe']
Answer:
my science teacher is 20 my civics teacher is 18 my math teacher is 100
Step-by-step explanation:
Fav grade? first. just color in the boxes and you get a 100 lolll
What is the value of x for the inequality in the box? 3 ( x − 7 ) + 4 ≥ 22
Step-by-step explanation:
3(x-7) + 4 = 22
or,3x-21+4 = 22
or, 3x-17 = 22
or, 3x = 22+17
or, x = 39/3
x = 13
PLEASE HELP ME WITH THIS KHAN ITS NOT HARD IM JUST TIRED
I WILL MARK BRAINLIEST
Answer: c
Step-by-step explanation: if you draw second function you'll see they are the same so slop is also the same(0.5)
use pascals triangle to find the coefficient of the third term in the expansion of (a + b)2
Answer:
2. ( a + b )
Step-by-step explanation:
The (a + b)2 formula is the algebraic identity used to find the square of the sum of two numbers. To find the formula of the binomial in the form (a + b)2, we will just multiply (a + b) (a + b).
Please help me urgently
Answer:
3/8 seems to be the most relevant answer
Select the correct answer.
What is the value of x in the triangle?
Answer:
A. 4
Step-by-step explanation:
SOH CAH TOA
Opposite & hypotenuse - sin
Sin(30) = o/8
x 8
O = 8 x Sin(30)
O =4
Hope this helps!
Find the equation of a line parallel to y=4x−4 that contains the point (−2,0). Write the equation in slope-intercept form.
keeping in mind that parallel lines have exactly the same slope, let's check for the slope of the equation above
[tex]y=\stackrel{\stackrel{m}{\downarrow }}{4} x-4\qquad \impliedby \qquad \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}[/tex]
so we're really looking for the equation of a line whose slope is 4 and passes through (-2 , 0)
[tex](\stackrel{x_1}{-2}~,~\stackrel{y_1}{0})\qquad \qquad \stackrel{slope}{m}\implies 4 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{0}=\stackrel{m}{4}(x-\stackrel{x_1}{(-2)}) \\\\\\ y=4(x+2)\implies y=4x+8[/tex]
Find the solution set of given inequality. Pls answer fast its urgent. I will give 90 points to the person who will answer it and also mark his answer as brainliest
Answer:
x ≥ 5
Step-by-step explanation:
5 + 2(2x - 3) ≥ 3x + 4
Expand brackets:
⇒ 5 + 4x - 6 ≥ 3x + 4
Combine like terms:
⇒ 4x - 1 ≥ 3x + 4
Subtract 3x from both sides:
⇒ x - 1 ≥ 4
Add 1 to both sides:
⇒ x ≥ 5
Answer: x>=5
Step-by-step explanation:
Simplify the expression
5+2\cdot\left(2x-3\right)>=3x+4
5+2\cdot2x+2\cdot-3>=3x+4
5+4x-6>=3x+4
4x+\left(5-6\right)>=3x+4
4x-1>=3x+4
Group all r terms on the left side of the inequality
x-1>=4
x-1+1>=4+1
x>=4+1
x>=5
_)) Miss Johnston has 80 gold stickers. She wants
to give the same number of stickers to each of her
8 students. How many stickers will each student
receive?
gold stickers per student
Answer:
10Step-by-step explanation
80 ÷ 8 = 10
Hope this helped!
From: Aug1e
The lateral area of a cone is 12.8π in. The radius is 1.6 in. Find the slant height.
Answer:
8
Step-by-step explanation:
12.8π=πrl
12.8=1.6*l. (π=πcancel)
l=12.8/1.6
l=8
Write the equation of the line that passes through (7,-4) and (-1,2) in slope-intercept form
Trapezia ABCD and PQRS are similar.
Find the area shaded in green.
The area shaded in green is 864 cm²
Similar figures
Similar figures, corresponding angles are congruent and the sides are ratio of each other. Therefore,
AB / PQ = CD / RS
30 / 10 = 24 / RS
30RS = 240
RS = 240 / 30
RS = 8 cm
let find the height of trapezium PQRS.
AB / PQ = 36 / h
30 / 10 = 36 / h
30h = 360
h = 360 / 30
h = 12 cm
Therefore,
area of the green portion = area of ABCD - area of PQRS
Area of a trapeziumarea = 1 / 2(a + b)hTherefore,
area of ABCD = 1 / 2(24 + 30)36 = 1 / 2 (54)36 = 1944 / 2 = 972 cm²
area of PQRS = 1 / 2(10 + 8)12 = 1 / 2(18)12 = 216 / 2 = 108 cm²
Area of the green portion = 972 - 108 = 864 cm²
learn more on trapezium here: https://brainly.com/question/11961445
what is: a + 1/10=5/10 ? pls dont delete this its school work.
Answer:
a = 2/5
Step-by-step explanation:
a + 1/10 = 5/10
Subtract 1/10 from both sides of the equation.
a + 1/10 = 5/10
-1/10 -1/10
a = 4/10
This answer is not incorrect but we usually need to simplify it if possible.
4/10 can be reduced to 2/5.
a = 2/5
Answer:
a=2/5
Step-by-step explanation:
To solve this, we first need to isolate the a so we can solve from there
First, we subtract 1/10. But whatever we do to one side we have to do to the other side. So when we subtract 1/10 from the left side we cancel it out and we subtract 1/10 from the right side so 5/10-1/10
So our equation becomes…
a=5/10-1/10
We can simplify this to…
a=4/10
4/10 is equal to 2/5
So that is our final answer
Now since we have nothing else to do that is our final answer
PLEASE AWARD BRAINLIEST I REALLY NEED TO LEVEL UP!
Can someone help solve this question?
Answer:
Total percentage is always 100% so if its 12% for her to slip the remainder is 100-12= 88.
88% she doesn't slip.
Using Percentage, the odds against jessie slips on the ice is 88%.
What is percentage?A percentage is a "number or ratio that can be expressed as a fraction of 100".
According to the question,
The probability of jessie slip on the ice is 12% and the percentage is always taken as 100%.
In order to find the odds against jessie slips on the ice only if difference from 100% to 12%.
100 - 12 = 88.
Hence, the odds against jessie slips on the ice is 88 percentage.
Learn more about percentage here
https://brainly.com/question/19926290
#SPJ2
The figure is the net for a rectangular prism.
What is the surface area of the rectangular prism represented by the net?
Answer:
544cm^2
Step-by-step explanation:
A=2(wl+hl+hw)
=2(6×16+8×16+8× 6)
= 544cm^2
pasagot nmn po thanks
Answer:
wag Po lagi umasa sa brainl.
multiple -c2( 3c - 2)
Answer:
[tex]-3c^3+2c^2[/tex]
Step-by-step explanation:
[tex]-c2( 3c - 2)[/tex]
Apply distributive law:
[tex]-c^2\times \:3c-\left(-c^2\right)\times \:2[/tex]
[tex]-3c^3+2c^2[/tex]
Name:
Chapter 5 Section 1
More Practice Finding the Coordinates of the point of Concurrency
1. The vertices of AABC are A(1,6), B(5,4), C(5,-2). Find the coordinates of the circumcenter.
a) Graph and label the triangle
b) Find the midpoint of each side of the triangle
Midpoint AB = 5, 1)
Midpointbc =
し32)
Midpointac = [1, 2]
c) Find the slope of each side of the triangle
MAB =
MBC =
MAC =
d) Find the slope of each perpendicular bisector
IMAB =
IMBc =
IMAC =
e) Use the midpoint and the perpendicular slope to accurately draw each perpendicu
bisector on the triangle.
Answer:
see the attachments for the graph, and a spreadsheet with midpoints and slopes
Step-by-step explanation:
We are given the coordinates of the vertices of a triangle, and asked to find the parameters of the perpendicular bisectors of the sides of the triangle. The perpendicular bisectors are to be plotted on the graph.
Given:Coordinates A(1, 6), B(5, 4), C(5, -2)
__
Find:a) Graph and label the triangle
b) Find the midpoint of each side of the triangle
c) Find the slope of each side of the triangle
d) Find the slope of each perpendicular bisector
e) Use the midpoint and the perpendicular slope to accurately draw each perpendicular bisector on the triangle
__
Solution:a)See the attached graph for shaded triangle ABC.
__
b)The midpoint (M) of a segment AB will be ...
M = (A+B)/2
For example, the midpoint of segment AB is ...
D = ((1, 6) +(5, 4))/2 = (1+5, 6+4)/2 = (6, 10)/2 = (3, 5)
This repetitive arithmetic is carried out in the spreadsheet shown in the second attachment. The midpoints are ...
D(3, 5) is midpoint of AB
E(5, 1) is midpoint of BC
F(3, 2) is midpoint of CA
__
c)The slope of a segment is found using the slope formula (or by counting grid squares). That formula is ...
m = (y2 -y1)/(x2 -x1)
For segment AB, this is ...
mAB = (4 -6)/(5 -1) = -2/4 = -1/2
The other slopes are calculated similarly in the spreadsheet. When the denominator is zero (a vertical line), the slope is "undefined."
mBC = undefined
mCA = -2
__
d)The slope of the perpendicular line is the opposite reciprocal of the slope of the segment.
m⟂AB = -1/(-1/2) = 2
m⟂BC = 0 . . . . . a horizontal line has 0 slope
m⟂CA = -1/-2 = 1/2
__
e)The perpendicular bisectors of each of the sides of the triangle are shown in the first attachment. As the lesson title indicates, their point of concurrency is G(1, 1), the circumcenter of the triangle.
Two friends shop for fresh fruit. Elena buys a watermelon for $6.75 and 5 pounds of cherries. Taniy buys a pineapple for $3.55 and 4 pounds of cherries. Use the variable p to represent the price, in dollars, per pound of cherries. Write and simplify an expression to represent how much more Elena spent.
Answer:
The expression that represents how much more Elena spent is $3.2 + p
Step-by-step explanation:
A 9 foot ladder liens against the side of a house how far is the bottom of the ladder from the side of the house when the angle of elevation of the latter is 75°
==========================================
Work Shown:
cos(angle) = adjacent/hypotenuse
cos(75) = x/9
x = 9*cos(75)
x = 2.32937140592269
x = 2.3
The bottom of the ladder is about 2.3 feet from the bottom of the house.
50 points and brainlest
1. D
2. B
3. B
4. C
5. A
6. C
7. C
8. B
9. D
10. D
Step-by-step explanation:
i just took the test
Answer:
Question 1 ⇔ .D
Question 2 ⇔ .B
Question 3 ⇔ .B
Question 4 ⇔ .C
Question 5 ⇔ .A
Question 6 ⇔ .A
Question 7 ⇔ .C
Question 8 ⇔ .B
Question 9 ⇔ .B
Question 10 ⇔ .D
Step-by-step explanation:
I hope this helps and have a good day!
In a video game, the chance of rain each day is always 30%. At the beginning of each day in the video game, the computer generates a random integer between 1 and 50. Explain how you could use this number to stimulate the weather in the video game.
Answer: See below
Step-by-step explanation:
30% * 50
= 30/100 * 50
= 15
Therefore, 30% of the integers between 1 and 50 are in the range 1 to 15
So the random integer generated is in this range, that is, less than or equal to 15, then the weather must be simulated to be rainy.
This would mean that the chance of rain on each day is 30% (if the computer generates the random number consistently)
Show that the difference between the7th square number and the 4th square number is a multiple of 3
how that the difference between the 7th square number and the 4th square number is a multiple of 3 step by step and Answer 3
5. To rent a bicycle a bike shop charges a deposit plus an hourly rate, Jim can
determine how much he will have to pay for a rental lasting t hours by using the
expression 8t + 20. What does the coefficient 8 most likely represent?
a) time
b.) insurance
c.) hourly rate
d.) deposit
Answer:
c.) hourly rate
Step-by-step explanation:
The value the coefficient represents can often be learned from its units. The term 8t gives a value in currency units, since the expression 8t+20 is an amount that is to be paid. (We can only add like terms, so both 8t and 20 must have currency units.)
The value of t has units of hours, so the coefficient 8 must have units that are ...
8 currency units/hour
That is, multiplying by hours gives currency units.
In this context, a number with units of currency units per hour is most likely the hourly rate of the rental.
Question is in the photo
Answer:
Step-by-step explanation:
positive factors are:
1, a, b, a², ab, a²b
17) The measures of two sides of a triangle are (2x + 3y) and (5x – 2y). If the perimeter
of the triangle is (12x + 5y), what is the measure of the third side?
Answer:
5x +4y
Step-by-step explanation:
The perimeter of a triangle is the sum of side lengths. That fact can be used to find z, the length of the third side.
(2x +3y) +(5x -2y) +z = 12x +5y . . . . sum of sides is perimeter
z = (12x +5y) -(7x +y) . . . . . . . . . . . . subtract (7x+y) from both sides
z = 5x +4y . . . . . . . . . collect terms; the length of the third side
The third side of the triangle is (5x +4y).
