On Monday, Mr. Sanchez started reading a 225-page biography. He plans to read 15 pages each day until he finishes the book. Write an explicit function to represent the number of pages he has left to read depending on the day number; Monday is day number 1, Tuesday is day number 2, and so on. Find f(5) and interpret its meaning in this situation.
Answers
Answer:
Step-by-step explanation:
answen
Step-by-step explanationRelated Questions
Which inequality is represented by the graph?
A. y > -2/3x+1
B.y < -2/3x +1
C.y < -3/2x +1
D.y> -3/2x +1
Answers
Answer:C
Step-by-step explanation:
Can someone please help me with this, I will mark you as brainliest
Answers
Answer:
1st answer is 1/2x^5
2nd answer is m^3/16p^2q^2
3rd answer is 2r^4+9r^3
What is the product of -3(-6r+6)
Answers
Step-by-step explanation:
-3 times -6r= 18r
-3 times 6 =-18
18r=-18
R=-1
If the answer is wrong try just 1
Answer:
0
Step-by-step explanation:
remove r first
-3(-6+6)
-3x-6= 18 -3x6|=-18
18-18=0
or
-3(-6+6)
=-3(0)
=-3x0
=0
don't forget the r you removed which equals to one
so you got 1
-3(-6r+6)=1
wish it could help
What is the reciprocal of 7/11 in simpliest form
Answers
Answer:
11/7is your answer ....
Step-by-step explanation:
hope its help you
Write the whole number 7 as an improper fraction.
Answers
Improper Fractions means
The numerator is greater than (or equal to) the denominator.Then the Answer is :
[tex] = \dfrac{21}{3} [/tex]A company sells widgets. The amount of profit, y, made by the company, is related to the selling price of each widget, x, by the given equation. Using this equation, find out the maximum amount of profit the company can make, to the nearest dollar. y=-x^2+78x-543
Answers
Answer:975
Step-by-step explanation:
The Diameter Of a circle is 10 cm. find its area in terms of pi
Answers
A = 1/2 x 3.14 x 10^2
Answer = 78.54
Hope this helps. If it’s too confusing, I can simplify it.
Which expression is equivalent to 4(x + 6), if x = 8 ?
A. 8 + x + 8 + 6
B. 8x - 8
C. 8 + x + 6
D. 8x + 24
Answers
Answer:
B
Step-by-step explanation:
4(8+6)=56
8(8)-8=56
Answer:
b
Step-by-step explanation:
the equation equals 56 and b equals 56 as well
What is the value of y=-1/2x +5
Answers
There are three possible answers
Slope = -1.000/2.000 = -0.500
x-intercept = 10/1 = 10.00000
y-intercept = 10/2 = 5
If this is helpful please mark brainliest. Have a great day
If x-5=12, what is the value of x-9?
Answers
Answer
8
Step-by-step explanation:
5+12=17 and 17-9=8
Help me please
Which polygons are similar to palygon a
Answers
Answer:
I believe it's B because they look very similar
8(3x-2)-8x=9(2x-6) find x
Answers
Answer:
x=19
Step-by-step explanation:
8(3x-2)-8x=9(2x-6) Distribute.
24x-16-8x=18x-54 Combine like terms.
16x-16=18x-54 Subtract 16x from both sides (getting rid of a variable first
-16x -16x is easier).
-16=2x-54 Add 54 to both sides.
+54 +54
38=2x Divide both sides by 2.
/2 /2
19=x
Hope this helps!! Have a great day ^^
Kane is training for a marathon. He starts by running 3 miles during every training session.
Each week plans to increase the distance of his run by mile.
1/4
Let w be the number of weeks. Write an expression to show the distance Kane
runs in a training session after w weeks.
Answers
Answer:
1/4w + 3 the answer has to be 20 characters long so ignore this
Answer:
Step-by-step explanation:
Given
Required
Determine the distance for w weeks
This will be calculated using the following Arithmetic progression formula
Where
Substitute these values
Open Bracket
Collect Like Terms
Take LCM
Two cities on a map is 7.5 centimeters.The map is 1 centimeter represents 30 kilometers.What is the distance between the cities in kilometers?
Answers
Answer:
225 kilometers
Step-by-step explanation:
7.5 times 30 equals 225
Provide the correct justifications for each statement in the derivation of the tangent difference identity.
1.
identity
2. Trigonometric
identities
3. Divide numerator and denominator by
4. Factor out common factors using the quotient identity.
Answers
Answer:
1: Quotient
2: Difference
3: cos(x)cos(y)
Step-by-step explanation:
I just did it on Edge :)
Answer:
Step-by-step explanation:
it's right here lol
56x + 40 = 48x + 104
Answers
Answer:
56x-48x=104-40
8x=24
X=3
Step-by-step explanation:
the answer is 8
]explanation subtract 56-48 and 104-40 you should get 8x=64
divide 8/8 and 64/8 and the answer is 8
In an office building, 39 offices are currently being rented. This represents 30% of the total units. How many offices are there in the building?
There are __ offices in the building
Answers
Answer:
130 offices are in the building
Step-by-step explanation:
first 39/x = 30/100
secondly, you cross multiply 39 x 100 and 30 x x
100 x 39= 3900
3900/30 = 130
Answer:
ANS. = 130
30% or 30/100=39offices
use cross multiplication
100/30 x 39/1 (note 30/100 is inversed to 100/30) math. law
10/3 x 39/1 (using divisor 10)
10/1 x 13/1 (using divisor 3)
10 x 13 = 130
Ans = 130 offices
Ans.Checked
30% of 130 offices
30/100 x 130/1
3/10 x 130/1 (10 as divisor)
3/1 x 13/1 (10 as divisor)
3 x 13 = 39
39 offices
Q.E.D
kevin and joe each manage a shop that sells CDs. Kevin’s shop is in the high street and Joes is in the rentail park.
Answers
Answer:
Number of CDs sold each day Frequency
0 – 10 10
11 – 20 34
21 – 30 24
31 – 40 13
41 – 50 7
51 – 60 12
Which sentence can represent the inequality
Answers
How many numbers are 10 units from 0 on the number line?
Answers
Answer:
2 Numbers; -10, and 10.
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
10 and -10
The employees of a firm that manufactures insulation are being tested for indications of asbestos in their lungs. The firm is requested to send three employees who have positive indications of asbestos to a medical center for further testing. If 30% of the employees have positive indications of asbestos in their lungs, find the probability that eleven employees must be tested in order to find three positives. (Round your answer to three decimal places.)
Answers
Answer:
0.070
Step-by-step explanation:
Y = number on trial
Y has a negative binomial distribution
r = 3
P = 30% = 0.3 probability of positive indication.
P(Y = 11) probability of 11 employees that must be tested to get 3 positives
Y-1Cr-1*p^r*q^(y-r)
Y-1 = 11-1 = 10
r-1 = 3 -1 = 2
10C2 x 0.3³x0.7⁸
45x0.027x0.05764801
= 0.070
This is the probability that 11 employees must be tested to get 3 positives.
(6.2x10^17)+(1.2x10^15)
Answers
Answer:
621200000000000000
Step-by-step explanation:
(6.2×10^17 )+(1.2×10^15)
6.2×100000000000000000+1.2×10^15 ≈6.212⋅10^ 1 7
620000000000000000+1.2×10^15 ≈6.212⋅10^ 1 7
620000000000000000+1.2×1000000000000000≈6.212⋅10^ 1 7
620000000000000000+1200000000000000≈6.212⋅10^1 7
621200000000000000
Answer:
6.212×10^17
Step-by-step explanation:
[tex] = ( 6.2 \times {10}^{17} ) + (1.2 \times {10}^{15} )[/tex]
[tex] = (620 \times {10}^{15}) + (1.2 \times {10}^{15} )[/tex]
[tex] = 620 \times {10}^{15} + 1.2 \times {10}^{15} [/tex]
[tex] = (620 + 1.2)\times {10}^{15} [/tex]
[tex] = 621.2\times {10}^{15} [/tex]
[tex] = 6.212 \times {10}^{17} [/tex]
I hope it helped u :)
If 2,x,18,and15y are in the proportion find the value of x
Answers
Answer:
if your proportion is [tex]\frac{2}{x}[/tex] = [tex]\frac{18}{15y}[/tex] then your answer would be 1.667 or 1 [tex]\frac{2}{3}[/tex]
edit: your answer could also be [tex]\frac{5}{3}[/tex]
are the triangles below acute obtuse or right
Answers
Answer:
Acute
Step-by-step explanation:
Answer:
B = acute
C = acute
Step-by-step explanation:
None of them have degrees over 90 degrees
sorry for the late reply lol
Four more than twice a number is -10.
Answers
Answer:
4 + ( -7 X 2 ) = -10
Step-by-step explanation:
Check work:
-7 times 2 is -14.
4 + -14 = -10
Convert 5/6 into a decimal
Answers
Answer:
Divide the numerator, 5, by the denominator, 6, to express the fraction 5/6 as a decimal. You can do this on either a calculator or using long division by hand. The answer will equal 0.83333 with the number 3 repeating endlessly.
Step-by-step explanation:
We can write 5/6 into a decimal as 0.84.
What is decimal numeral system?The decimal numeral system is the standard system for denoting integer and non-integer numbers.
Given is to write 5/6 into a decimal.
We can write 5/6 as a decimal below -
{x} = 5/6
{x} = 0.84
Therefore, we can write 5/6 into a decimal as 0.84.
To solve more questions on decimal, visit the link below -
https://brainly.com/question/4954886
#SPJ5
Jim is an archaeologist who wants to determine the age of a fossil. The half-life of Carbon-14 is 5730 years. Jim determines there must have been 6.6 grams of Carbon-14 in the fossil when the animal was alive. Now there is only 1.2 grams of Carbon-14 remaining. What is the age of the fossil?
14,092.54
13,119.45
16,345.18
15,540.97
Answers
Answer:
14,092.54
Step-by-step explanation:
I just had this question and got it right.
Select the correct answer from the drop-down menu.
A company sells its products to distributors and boxes of 10 units each. it's profits can be modeled by this equation, where p is the profit after selling n boxes.
p = -n² + 300n + 100,000
Use this equation to complete the statement.
The company breaks even, meaning the profits are only $0, when it sells _____ boxes.
Options for Blank:
A: 200 or 500
B: 500
C: 150
D: 200
Answers
Answer:
B. 500Step-by-step explanation:
Given the profit made by a company modeled by the function
p = -n² + 300n + 100,000
The company breaks even when p = 0
To get the number of boxes sold when the company breaks even, we will substitute p = 0 into the equation.
0 = -n² + 300n + 100,000
multiply through by -1
0 = n² - 300n - 100,000
n² - 300n - 100,000 = 0
(n² - 500n) + (200n - 100,000) = 0
n(n-500)+200(n-500) = 0
(n+200)(n-500) = 0
n+200 = 0 and n-500 = 0
n = -200 and n = 500
Since n cannot be negative
Hence n = 500
This means that the company breaks even when it sells 500 boxes
A newspaper is launching a new advertising campaign in order to increase the number of daily subscribers. The newspaper currently (t0) has 26,000 daily subscribers and management expects that number, S(t), to grow at the rate of subscribers per day, where t is the number of days since the campaign began. How long (to the nearest day) should the campaign last if the newspaper wants the number of daily subscribers to grow to 49,000?
Answers
Answer:
57 days
Step-by-step explanation:
Given that:
t(0) = 26000
Growth rate (S'(t)) = 80t^1/2
Targeted number of subscribers = 49000
Take the integral of the growth rate :
∫80t^1/2dt = [(80t^(1/2 + 1)) / 1/2 + 1] + C
[(80t^(1/2 + 1)) / 1/2 + 1] + C = (80t^3/2) / 3/2 + C
(80t^3/2) * 3/2 + C = (160/3)t^3/2 + C
(160/3)t^3/2 + C
Let C = t(0)
(160/3)t^3/2 + 26000 = 49000
(160/3)t^3/2 = 49000 - 26000
(160/3)t^3/2 = 23000
Multiply both sides by 3/160
t^3/2 = 23000* 3/160
t^3/2 = 69000/160
t^3/2 = 431.25
t^(3/2 * 2/3) = 431.25^2/3
t = 57.080277
t = 57 days (approx.)
If X is a random variable with expected value 2, then the expected value of 5X will be:______
Answers
Answer:
E(5X) = 10
Step-by-step explanation:
The expected value of a random variable X is denoted as; E(X)
Now we are told it's equal to 2.
Thus;
E(X) = 2
Now, we want to find the expected value of 5X
We will use the principle from expected value derivations below;
E(cX + d) = cE(X) + d
Also;
If E(X) = z
Then;
E(aX) will give; aE(X) = az
From our question, we have;
E(X) = 2
Thus;
E(5X) = 5E(X) = 5 × 2 = 10