Answer:
domain: all natural numbers greater than zero and less than or equal to 21
Step-by-step explanation:
You cannot go for zero nights, and the maximum number of nights you can stay is 21. You also cannot have fractional night, so your answer has to be in natural numbers.
- Kirk is reading a book and found that after 5 days he had read 180 pages.
rate is Kirk reading the book in (b) If the book is 765 pages long, how many
days will it take him to read the book at
the rate you found in (a)?
Answer:
21.25 days
Step-by-step explanation:
We first need to find the rate that he read the book for the first 5 days:
180 (pages)/5 (days)= 36
So he reads 36 pages a day. Now we need to find how many days it will take him to read the whole book, while reading 36 pages a day.
765 (total pages)/36 (pages he reads in a day) = 21.25
Have a wonderful day, my friend.
I need help the question is solve the equation n+75=155
Answer:
80
Step-by-step explanation:
155-75=80
can someone help pls
Answer:
a) 3 feet wide, 2 feet long, and 7 feet high
At a height of about 212 meters, One Shell Square is the tallest building in New Orleans. Marlie is creating a scale model of this building, using the scale factor 1:250.
To the nearest tenth of a meter, what will be the height of the scale model?
Enter your answer as a decimal in the box.
given 90 points for answering, thank you!
Answer:
0.8 meters
Step-by-step explanation:
The scale factor is 1:250 (can be rewritten as 1/250 or 1 to 250).
1/250 × 212 = 0.848 Meters
Round to the nearest tenth, the scale model will be 0.8 meters.
OR: SET UP A PROPORTION:
[tex] \frac{250}{1} \times \frac{212}{x} [/tex]
cross-multiply
[tex]250x = 212[/tex]
[tex]x = 0.848[/tex]
Answer:
0.8
Step-by-step explanation:
ye
100 POINTS PLZ HELP ME
This graph shows a proportional relationship.
What is the constant of proportionality?
Enter your answer as a ratio in simplified form by filling in the boxes.
$$
A graph with a line running through coordinates left parenthesis 0 comma 0 right parenthesis and coordinates left parenthesis 1 over 4 end fraction comma 3 over 8 end fraction right parenthesis.
Answer:
I dont see a graph, but the constant of proportionality the ratio between two directly proportional quantities. two quantities are directly proportional when they increase and decrease at the same rate
Step-by-step explanation:
if you add a graph, ill edit my answer
hope this helps!
[9 • 23 - 2] + 9 need help
Answer:
214
Step-by-step explanation:
9·23=207
207-2=205
205+9=214
I hope this helps, and have a great day! :D
Please help- Show ur work,, and please answer correctly
I will also give brainliest
Answer:
x = -4.
n = -2.
v = -5.
Step-by-step explanation:
18 = -4x + 2
18 - 2 = -4x
x = 16/-4
x = -4.
6 + 2n = 2
2n = 2 - 6 = -4
n = -2.
5v + 8 = -17
5v = -17 - 8
5v = -25
v = -5.
-2xSquared +4x-1 minus 6x squared+3x-9
What is the equation of the line in slope-intercept form?
Answer:
y = -3x + 4
Step-by-step explanation:
y = mx + b
y = y coordinate
m = slope (rise/run, up/over, change in y/change in x)
x = x coordinate
b = y intercept (where the line crosses the y-axis.
1. Write the equation y = mx + b
2. Substitute the numbers in the proper place. y = 3/1 x + 4
3. Check for the type of slope- (positive or negative) y = -3x + 4
(Downhill slopes are always negative.)
Help&EXPLAIN
Don’t use for points or will be reported and I’ll take the points back
Answer:
A. obtuse
Step-by-step explanation:
This is because in an obtuse angled triangle one of its angle is greater than 90° and here angle RQS = 112° which is greater than 90°, so it's a obtuse triangle.
Answer:
A. obtuse triangle
Step-by-step explanation:
the degree of RQS is greater than 90º
Solve by graphing.
x + 3y = -9
5x + 3y = 3
Answer:
Step-by-step explanation:
The solution of the system of linear equations is [tex]x = 3[/tex] and [tex]y = -4[/tex].
In this question, we notice that given system of linear equations consist of two equations and two variables, which means that solution is unique and can be found by graphic means. We proceed to graph each line with a graphing tool and label the point, in which both lines intersect each other.
The outcome from the graphing tool is presented below as attachment. In a nutshell, the solution of the system of linear equations is [tex]x = 3[/tex] and [tex]y = -4[/tex].
We kindly invite you to see this question related to systems of linear equations: https://brainly.com/question/13647755
COMPLETE THE SEQUENCES.
1- 0, 16, 32, 48, 64,_,_,_,
2- 2,9, 11, 18, 20, 27,_,_,_,
SOMEONE PLEASE HELP ME
Answer:
0,16,32,48,64,80,96,112
2,9,11,18,20,27,29,36,38
Step-by-step explanation:
1.Counting by 16
2. Counting by 7 and 2
Use the grouping method to factor the polynomial below completely.
3x3 + 6x2 + 5x + 10
A. (3x2 +5)(x+2)
B. (3x2 + 5)(x + 5)
C. (3x2 + 2)(x + 5)
D. (3x2 + 2)(x + 2)
Answer:
its A
Step-by-step explanation:
i did the test
Construct 98% confidence intervals based on the following data: 49, 38, 67, 69, 58, 70, 66, 85.
Answer:
May I have a little more context please?
Step-by-step explanation:
What is 3-8 I don’t know what it is I can not figure it out
Answer:
-5
Step-by-step explanation:
Answer:
your answer is -5
Step-by-step explanation:
when your reach 0 your keep going to the negetives
In a research experiment, the population of a colony of bacteria doubles every hour. The population, f() of the colony atter z hours can be modeled by the function () - 25.2" What values for the domain are reasonable in the given
context
Answer:99
4/2ndjsjhowkllsnlove u
our appearance is unimportant it is who we are on the inside
Answer:
Yes that is true. People just like to judge on what we look like on the outside. I Don't Know why tho.
Which could be the dimensions of a rectangular prism whose surface area is greater than 140 square feet? Select
three options.
6 feet by 2 feet by 3 feet
6 feet by 5 feet by 4 feet
17 feet by 6 feet by 4 feet
8 feet by 3 feet by 7 feet
8 feet by 4 feet by 3 feet
Answer:
6 feet by 5 feet by 3 feet
17 feet by 6 feet by 4 feet
8 feet by 3 feet by 7 feet
Help&EXPLAIN
Don’t use for points or will be reported and I’ll take the points back
Answer:
B = 243°
Step-by-step explanation:
Full revolution = 360°
360 - 117 = 243
Answer:
243 degrees
Step-by-step explanation:
The angle of a full circle = 360 degrees
360 - 117 = 243
You are the coach of a basketball team that is currently looking for new players. One of the criteria for selection as a player is that the person must be above a particular height. Ideally, you want your next player to be as tall as possible. However, you do not want to rule out any potential players by making the cut-off height too strict. You decide that accepting players within the top 2.5% height bracket will be reasonable for your team. Assume that the height of all people follows a normal distribution with a mean of 69 in and a standard deviation of 2.9 in. Calculate the cut-off height (C) that ensures only people within the top 2.5% height bracket are allowed into the team. you may find this standard normal table useful. Give your answer in inches to the nearest inch.
C= _____ in
Answer:
C = 75 in
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
Assume that the height of all people follows a normal distribution with a mean of 69 in and a standard deviation of 2.9 in.
This means that [tex]\mu = 69, \sigma = 2.9[/tex]
Calculate the cut-off height (C) that ensures only people within the top 2.5% height bracket are allowed into the team.
This is the 100 - 2.5 = 97.5th percentile, which is X when Z has a pvalue of 0.975, so X when Z = 1.96.
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]1.96 = \frac{X - 69}{2.9}[/tex]
[tex]X - 69 = 1.96*2.9[/tex]
[tex]X = 74.7[/tex]
Rounded to the nearest inch,
C = 75 in
A frame is 4 inches tall and 3 inches wide if it is enlarged to a height of 24 inches then how wide will it be
z + y2
for y = 6 and z = 1
Answer:
37
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
z + y²
y = 6
z = 1
Step 2: Evaluate
Substitute in variables: 1 + 6²Evaluate exponents: 1 + 36Add: 37Can someone please help with these two questions please?
1. Assume that the radius r of a sphere is expanding at a rate of 60 cm/min. The volume of a sphere is V = 4/3r^3 and its surface area is 4r^2. Determine the rate of change in surface area at t = 2 min, assuming that r = 16 at t = 0.
2. A conical tank has height 3 m and radius 2 m at the top. Water level is rising at a rate of 2.1 m/min when it is 1.8 m from the bottom of the tank. At what rate is water flowing in? (Round your answer to three decimal places.)
Answer:
Step-by-step explanation:
S=4πr²
ds/dt=4π×2r×dr/dt=8πr dr/dt
dr/dt=60 cm/min
ds/dt=8π×60r=480πr
r=16,t=0
at t=2,r=16+32=48 cm
so ds/dt=480π×48=23040 πcm²≈72382.79 cm²
2.
[tex]V=\frac{1}{3} \pi r^2*h\\\frac{r}{h} =\frac{2}{3} \\r=\frac{2}{3} h\\V=\frac{1}{3} \pi( \frac{2}{3} *h)^2h\\V=\frac{4}{27} \pi h^3\\\frac{dV}{dt} =\frac{4}{27}\pi *3h^2\frac{dh}{dt} \\\\when ~h=1.8 ~m,\frac{dh}{dt} =2.1~m/min\\\frac{dV}{dt} =\frac{4}{9}\pi h^2\frac{dh}{dt} =\frac{4}{9} \pi*(1.8)^2*2.1=27.216 \pi \approx 85.502 m^3[/tex]
A system of equations is graphed on the set of axes below.
The solution of this system is?
The solution of the system of equations is (4, 2).
A system of equations is graphed on the set of axes below.
What is a linear system of equations?A system of linear equations consists of two or more equations made up of two or more variables such that all equations in the system are considered simultaneously. The solution to a system of linear equations in two variables is any ordered pair that satisfies each equation independently.
The solution to a system of linear equations is the point at which the lines representing the linear equations intersect.
From the given graph, two lines intersecting at the point (4, 2)
Hence, the solution of the system of equations is (4, 2).
To learn more about the linear system of an equations visit:
https://brainly.com/question/27664510.
#SPJ2
Pls help this is due in 10 minutes
Answer:
y = 52
Step-by-step explanation:
y/4 - 7 = 6 (get the y isolated)
y/4 = 13 (add 7 to both sides)
y = 52 (multiply 4 on both sides)
there are 84 girls in grade 3.the boys are twice the numbers of girls. how many pupils are there in all in grade 3?
Answer:
252
Step-by-step explanation:
Girls = 84
Boys = 84 * 2 = 168
Total = 252
Answer:
Step-by-step explanation:
no of girls in grade 3 = 84
by the question no of boys are twice the number of girls so
no of boys = 2 * 84 = 168
Total no of pupil in grade 3
= 168 + 84
= 252
hope it will help :)
A.find the price elasticity of demand at the equilibrium points? quantity demand=72-8p and quantity supply=-24 +24p. B.substitutes the equation.
Answer:
p = 3
Step-by-step explanation:
The price elasticity of demand at the equilibrium points occurs when quantity demand equals quantity supply.
So,
72-8p= -24 +24p
Taking like terms together,
72+24 = 24p+8p
96 = 32p
p = 3
Hence, the price elasticity of demand is at p = 3.
Can you Help me please!!
Step-by-step explanation:
10 and under= 3
11-15=7
16-20=8
20 and over= 2
please answer!
Find the value of x.
115°
150°
thank you :)
Answer:
35 degrees
Step-by-step explanation:
180-150=30
115+30=145
180-145=35
35
Answer:
360 degrees - 150degrees =110 degrees
add 110 and 115 degrees to get 225 degrees
next subtract 360 - 225= 135 degrees
so x equals 135
Step-by-step explanation:
can i have brainliest
help please and thanks
Answer:
C
Step-by-step explanation:
6/9 simplified is 2/3 they're equal to each other so they're proportional
Hope this helps :)