Answer:
The formula to calculate pressure at an altitude in this case is:
P = original pressure x (1 + rate of change)^(number of changing)
in which,
original pressure = 101 kilopascals
rate of change = -11.9% = - 0.119
number of changing = 2000/1000 = 2
=> P = 101 x (1 - 0.119)^2 = 78.39 kilopascals
Hope this helps!
:)
Solve for b.
–2b = 11b + 13
The value of b is -1
look at the attached picture
Hope it will you
Good luck on your assignment
Find the solution of -x-2-10x=25
Answer:
X=-2.45
Step-by-step explanation:you have to combine the x's which gives you -11x-2=25 so then you have to add two to 25 and it leaves you with -11x=27 and then you just divide 27 by -11 and x is -2.45
Answer:
x = -5
Step-by-step explanation:
start with factoring
-x^2 - 10x - 25 = 0 (i moved 25 to the left side)
then you can multiply the entire equation by -1 to get rid of the negative sign
x^2 + 10x + 25 = 0
now 5x5 = 25 and 5+5 = 10.
so (x^2 + 5x + 5x + 25) = 0
x(x+5) 5(x+5) = 0
(x+5)(x+5) = 0
(x+5)^2 = 0
so x = -5
So i have a assignment that i have to and i wondering if you guys could help me:
Title of Section: Describe all numbers that satisfy both inequalities. Include a graph with your description.
A museum charges $7 per visitor. The museum has already admitted 37 visitors. Write and solve an inequality to find how many more visitors the museum needs to admit to make at least $450.
And i don't understand please help
Answer:
28 more people to reach 450
Step-by-step explanation:
450/7≈65(the total number of money the need divided by ticket price to see how many total people they need)
37*7=259 (the people they have already gotten times ticket price to find how much more they need)
450-259= 191 (what they need altogether miinus what they already have)
191/7≈28 (how much more money they need divided by ticket price, 28 is more ticket they need to sell)
does this make sense
How is the surface area of any prism determined?
Answer:
In order to find the surface area, you will need to add up the areas of each face of the prism. ... In this prism, the length is also the side of the hexagon, and the width of the rectangle is the height of the prism. Now, multiply the area of the rectangle by to find the total area of all of the sides of the prism.
Step-by-step explanation:
a circle has a center located at 2 5 and passes through the point 10 3 answer
Determine the equation of the circle. Show how you arrived at your answer.
Write the equation of the tangent line to the circle at the point . Show how you determined your answer.
Answer:Explanation: The formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. If a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.
Step-by-step explanation:
The circle equation has a center located at (2, 5) and passes through the point (10, 3) is (x - 2)² + (y - 5)² = 68
What is an equation?An equation is an expression that shows the relationship between two or more variables and numbers.
The circle has a center located at (2, 5) and passes through the point (10, 3), hence:
[tex]Radius=\sqrt{(3-5)^2+(10-2)^2}=8.25[/tex]
The equation of the circle is:
(x-2)² + (y-5)² = 8.25²
(x - 2)² + (y - 5)² = 68
The circle equation has a center located at (2, 5) and passes through the point (10, 3) is (x - 2)² + (y - 5)² = 68
Find out more on equation at: https://brainly.com/question/2972832
#SPJ2
Two cylinders are shown below which cylinder has a greater volume use 3.14 for pi
Answer:
Cylinder Q has a greater volume
Step-by-step explanation:
For this question we need to utilise the volume of a cylinder which is
→ Volume of a cylinder = π × r² × h
Let's substitute in the values and then do the analysis
Cylinder P
→ Volume of a cylinder = π × r² × h
⇒ Substitute in the values
→ Volume of a cylinder = π × 4.25² × 14
⇒ Simplify
→ Volume of a cylinder = 794.430242277
The volume of cylinder P is 794.430242277
-------------------------------------------------------------------------------------------------------
Cylinder Q
→ Volume of a cylinder = π × r² × h
⇒ Substitute in the values
→ Volume of a cylinder = π × 7² × 8.5
⇒ Simplify
→ Volume of a cylinder = 1308.47334022
The volume of cylinder Q is 1308.47334022
-------------------------------------------------------------------------------------------------------
We can see that cylinder Q has a greater volume
Mr W. is having a yard sale, where he is selling iPad chargers and wireless keyboards. At the end of the day, he knows he sold a maximum of 14 items, and he earned a total of $342. If he charged $18 for each iPad charger (x) and $38 for each keyboard (y), write a system of inequalities that models this situation.
(b) graph that system of inequalities
(c) is it possible he sold 11 iPad charges and 3 wireless keyboards? explain based on your graph
Answer:
i dont get it
Step-by-step explanation:
There are 19 people on a basketball team, and the coach needs to choose 5 to put into
a game. How many different possible ways can the coach choose a team of 5 if each
person has an equal chance of being selected?
Answer:
197676 diff possible ways
Step-by-step explanation:
Combination because order doesn't matter.
19!/(19-5)!*5!=19!/14!*5!=19*18*17*16*15*14!/14!*5!=19*18*17*17*16*15/5!=23721120/5*4*3*2=23721120/120=197676
I really don't understand this. Can someone help me.
Answer:
Step-by-step explanation:
sum of angles of a polygon=(n-2)*180
S=(n-2)*180
n=13
S=(13-2)*180
=11*180
=1980°
2.
sum of angles=95+140+120+75+130+115+80
=750
again sum of angles of a heptagon=(7-2)×180
=5×180
=900
so these can,t be angles of heptagon.
3.
external angle of heptagon=360÷10=36
internal angle=180-36=144°
it is a convex polygon.
4.
external angle=360÷9=40°
internal angle=180-40=140°
it is a convex polygon.
5.
external angle=360÷5=72°
internal angle=180-72=108°
it is a convex polygon.
If you roll two fair six-sided dice, what is the probability that the dice show the same number
Answer:
6/36
Step-by-step explanation:
Trust me I got it right on Khan academy :)
Answer:
6/36
Step-by-step explanation:
I got it right too on khan academy
Help me with question 20 for brainliest
Answer:
Step-by-step explanation:
%of water=70%(100-30)
percent to be attained=86%(100-14)
difference in %=86-70%
=16%
literes of water=16%of 125l=20literes
hope this helps
plzz mark me brainliest
-3/4j+1/5=3/6
Can someone help me find j
Answer:
j= -0.4
Step-by-step explanation:
multiply both sides by 60
=45j(+12)=30-12
take the 12 ti the right hand side and the sign changes
= -45j=18 then divide by 45 on both sides
j= -2/5
j= -0.4
The cost of a phone plan Q is $10 per month plus $0.14 per minute. Phone plan R cost $7 per month plus $0.17 per minute. If Anthony talks on the phone for 70 minutes in a month, which plan is less expensive for Anthony, and by how much?
Answer:
Plan Q cost $18.9 and it is less expensive by $0.9
Step-by-step explanation:
Cost of Phone Q=$10+$0.14 per minute
Cost of phone R=$7+$0.17 per minute
Let m=number of minutes
If Anthony talks for 70 minutes
Cost of Q=$10+$0.14(m)
=$10+$0.14(70)
=$10+$9.8
=$19.8
Cost of phone R=$7+$0.17(m)
=$7+$0.17(70)
=$7+$11.9
=$18.9
Plan Q cost $18.9 and it is less expensive by $0.9
answer quick for brainliest!
A
Step-by-step explanation:
Long multiplication:
What is 567 x 241
Please show your work and thanks if you can spare some time to answer.
Answer:
Step-by-step explanation:
I can't figure this question out can I please have help with this question
Answer: 45 degrees
Step-by-step explanation:
The blades of the fan align at 0, 45, 90, 135, 180, 225, 270 and 315.
If you move the blades 45 degrees the fan's blades will be in the same position as the one before them
Sorry if I didn't explain it well, comment and I'll try to explain better
In Crista’s class, 8 students have blonde hair, 14 have brown hair, 3 have black hair, and 2 have red hair. If one student is chosen at random, it is that the student has blonde hair, it is that the student has brown hair, it is that the student has black hair, and it is that the student has red hair.
Answer:
In Crista’s class, 8 students have blonde hair, 14 have brown hair, 3 have black hair, and 2 have red hair. If one student is chosen at random, it is
unlikelythat the student has blonde hair, it is
neither likely nor unlikelythat the student has brown hair, it is
unlikelythat the student has black hair, and it is
unlikelythat the student has red hair.
Answer:
In Crista’s class, 8 students have blonde hair, 14 have brown hair, 3 have black hair, and 2 have red hair. If one student is chosen at random, it is
unlikely
that the student has blonde hair, it is
neither likely nor unlikely
that the student has brown hair, it is
unlikely
that the student has black hair, and it is
unlikely
that the student has red hair.
Step-by-step explanation:
The data set represents the prices for a full tank of gasoline for different motorcycles:
$19, $18, $15, $17, $19, $12, $19 and $15
What is the range of prices?
a
$7.00
b
$17.50
c
$16.75
d
$19.00
Answer:
The answer would be A. $7.00!
Step-by-step explanation:
To find range subtract the lowest amount from the highest, the difference will be your answer.
water is being pumped into a 10-foot-tall cylindrical tank at a constant rate.
the depth of the water increases linearly
please help soon I have been stuck on this problem for a really long time.
at 1:30 pm the water depth was 2.4ft
it is now 4:00 and the water depth is 3.9 ft
what will the water depth be at 5:00?
Answer:
The depth of water at 5:00 is 4.5 ft.
Step-by-step explanation:
Depth of water at 1:30 PM = 2.4 ft
Depth of water at 4:00 PM = 3.9 ft
Change in time = 4 - 1:30 = 2.5 hours
Depth increased in 2.5 hours = 3.9 - 2.4 = 1.5 ft
Now, we are given that the depth of water is increasing linearly, so after 4:00 PM as well, the water depth will keep on increasing with the same rate as that of previous time intervals.
We have to find out the depth at 5:00 PM i.e. we need to find out the increase from 4:00 PM to 5:00 PM (1 hour) and then add it to depth at 4:00 PM.
Depth increased in 2.5 hours = 1.5 ft
Depth increased in 1 hour = 1.5 / 2.5 = 0.6 ft
Depth at 5:00 PM = Depth at 4:00 PM + Depth increased in 1 hour
[tex]\Rightarrow[/tex] 3.9 + 0.6 = 4.5 ft
Depth increased in 2.5 hours = 1.5 ft
So, The depth of water at 5:00 is 4.5 ft.
The depth of water at 5:00 is 4.5 ft.
Given that,
Depth of water at 1:30 PM = 2.4 ft Depth of water at 4:00 PM = 3.9 ft Si, Change in time = 4 - 1:30 = 2.5 hoursNow
Depth increased in 2.5 hours is
= 3.9 - 2.4
= 1.5 ft
Depth increased in 1 hour = [tex]1.5 \div 2.5[/tex] = 0.6 ft
Depth at 5:00 PM = Depth at 4:00 PM + Depth increased in 1 hour
= 3.9 + 0.6
= 4.5 ft
Learn more: https://brainly.com/question/25914450?referrer=searchResults
9. The volume of a cubical box is 19.683 cucm. Find the length of each side of the box *
(5 Points)
Answer:
Step-by-step explanation:
a^3=19.683
a^3=2.7^3
length of each side=2.7 cm
Answer:
2.7 meters long
Step-by-step explanation:
Volume of a Cube is: [tex]V=a^3[/tex]
Where 'a' is the side length.
Each side of the box would be the cube root of the total volume in this case,
[tex]V=19.683\\\sqrt[3]{19.683}\\{a=2.7}[/tex]
The length of each side should be 2.7 meters long.
Which are the solutions of x2 = –13x – 4?
dont gime bs just answer it
85 points btw
Step-by-step explanation:
Step 1: Add 13x to both sides
[tex]x^2 + 13x = -13x + 13x - 4[/tex]
[tex]x^2 + 13x = -4[/tex]
Step 2: Add 4 to both sides
[tex]x^2 + 13x + 4 = -4 + 4[/tex]
[tex]x^2 + 13x + 4[/tex]
Step 3: Use Quadratic Formula
[tex]x = \frac{ -b \pm \sqrt{ b^2 - 4ac } }{2a}[/tex]
[tex]x = \frac{ -(13) \pm \sqrt{ 13^2 - 4(1)(4)} } { 2(1)}[/tex]
[tex]x = \frac{-13 \pm \sqrt{153}}{2}[/tex]
[tex]x = \frac{-13\pm3\sqrt{17} }{2}[/tex]
Answer: [tex]x = \frac{-13\pm3\sqrt{17} }{2}[/tex]
Answer:
-0.3 and - 12.7
Step-by-step explanation:
Rewrite in quadratic form:
x2 + 13x + 4 = 0
The best approximations, given the options, are 0 and - 13
The actual solution is -
2x3y − 3x2 + 7y2x − 12y in standard form
Answer:
Step By Step Explanation:
Answer:
A) 2x3y + 7y2x − 3x2 − 12y
if the vertex of a parabola is (0, 3), what is the axis of symmetry
Answer:
The equation of the axis of symmetry for this parabola is x = 0.
Step-by-step explanation:
For parabola's, it's axis of symmetry always goes through the vertex of the parabola. In other words, the axis of symmetry is vertical line that goes through the x-coordinate of the vertex.
Now, the vertex is given as (0,3) which is at x = 0, y = 3.
Thus, the vertical line that goes through the x-coordinate of the vertex will be x = 0
Thus, the equation of the axis of symmetry for this parabola is x = 0.
A bag of marbles contains 8 yellow marbles, 6 blue marbles, 4 red marbles, and 2 green marbles. Two marbles are chosen at random, WITHOUT replacement. What is the probability a red marble is chosen and then a blue marble?
Answer:
6/95
Step-by-step explanation:
First, let's find the total # of outcomes. There are 8+6+4+2 = 20 marbles in the bag. We have 20 options for the first draw, and 19 for the second. 20*19 = 380 total possible outcomes.
Now, let's fin the successful outcomes. There are 4 red and 6 blue marbles, so 4 for the firs tpick and 6 for the second pick. 4*6 = 24 successful outcomes. To find probability, we do successful outcomes/total outcomes, and in this case, that is 24/380, or 6/95. Hope that helps!
Answer:
Step-by-step explanation:I don't say you have to mark my ans as brainliest but my friend if it has really helped you plz don't forget to thank me...
what is 4(2 + a) = 24?
Look at the attached picture
Hope it will help you
Answer:
a = 4
Step-by-step explanation:
In an equation our aim is to find the value of what we are looking for as well as keeping the equation balanced. For example if we took away 8 only from one side then the equation would change so it's an important rule to keep in mind when solving equations, that you need to keep both sides of the equation the same.
4 (2 + a) = 24
→ Expand the brackets
8 + 4a = 24
→ Minus 8 from both sides to isolate 4a
4a = 16
→ Divide both sides by 4 to isolate a and therefore find the value of a
a = 4
→ We can substitute a = 4 back into 4 (2 + a) = 24 to see if we have the correct solution, if we end with the same number on both sides then a =4 is correct.
4 (2 + a) = 24
4 (2 + 4) = 24
4 × 6 = 24
24 = 24
So a = 4 is correct
4 (2
Can someone help me with this?
(5+w)(w+4)
Answer:
w^2+9w+20
Step-by-step explanation:
Apply the FOIL METHOD: (a + b) (c + d) = ac + ad + bc + bd
a = 5
b = w
c = w
d = 4
= 5w + 5 x 4 + ww + w x 4
= 5w + 5 x 4 + ww + 4w
Simplify 5w + 5 x 4 + ww + 4w:
w^2 + 9w + 20
-Algebra FWISD
What is the equation of the line passing through the points (-25, 50) and (25, 50) in slope-intercept form?
Answer:y=50
Slope is zero
Step-by-step explanation:
50-50/25--25=0/50=0
Answer: y=50
Step-by-step explanation:
did it on edge 2020
1.
William has the following data:
J, 14, 7, 16, 16
If the mean is 12, which number could j be?
Answer:
7
Step-by-step explanation:
The mean is the average of the numbers. Add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
7 + 14 + 7 + 16 + 16 = 60
60 / 5 = 12
lan has a flower pot in the shape of a rectangular prism. The base of the
flower pot is 36 square inches. The flower he's planting needs the soil to
be 3 inches deep. How much soil should lan put in the flower pot?
How can we find the volume of the soil in cubic inches?
Answer: 108 cubic inches
Step-by-step explanation:
Hi, to answer this question we have to apple the next formula:
Volume of a rectangular prism (V): base area x height (deep of the soil)
Replacing with the values given:
V = 36 x 3 =108 cubic inches
Ian should put 108 cubic inches of soil in the flower pot.
The volume of the soil is 108 cubic inches.
Feel free to ask for more if needed or if you did not understand something.
Can anyone help me on this?
Answer:
45 feet
Step-by-step explanation:
To find the hypotenuse of that triangle, you would have to do 81-28, because that's the portion that snapped. That equals 53.
Then, we can apply the Pythagorean theorem: a^2+28^2=53^2
a^2=2025
a=45
Therefore, 45 feet
I hope this helped! Have a good rest of your day!