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
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
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
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
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
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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.
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
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
The population of the united states is 280 million. If 2 out of 3 americans know who the vice president is, how many americans know who the vice presdient is?
Answer:
186,666,667 Americans know who the vice president is
Step-by-step explanation:
In this question, we are tasked with calculating the number of USA citizens that know who the vice president is.
Now, in this question, we are made to know that the total population is set at 280 million with 2 out of three knowing who the vice president is.
What this means is that a fraction of the population at 2/3 knows who the vice president is
This fraction is equal to; 2/3 * 280,000,000 = 186,666,666.66666666
This is approximately equal to 186,666,667 people
Answer:
About 186.7 million people know who is the president of the United States.
Step-by-step explanation:
The number of US people who know who the vice president is (Mike Pence in 2020):
[tex]x = \frac{2}{3}\cdot (280\times 10^{6}\,people)[/tex]
[tex]x = 186.667\times 10^{6}\,people[/tex]
About 186.7 million people know who is the president of the United States.
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
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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
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:
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:
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!
what is csc of angle b. reduce fractional answers to lowest terms
Answer:
17 / 8
Step-by-step explanation:
So the cosecant is equal to the hypotenuse ÷ opposite side
Hypotenuse = 17
Opposite side = 8
17 / 8
The measure of the cosecant of the angle B is 17/8.
What is the relation between cosecant and sine function?We can write the relation between cosecant and cosine function as -
cosec(x) = 1/sin(x)
Given is a right angled triangle.
We can write -
cosec(b) = 1/sin(b)
cosec(b) = 1/(p/h)
cosec(b) = (h/p)
cosec(b) = 17/8
Therefore, the measure of the cosecant of the angle B is 17/8.
To solve more questions on trigonometric functions, visit the link below -
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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.
-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
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.
Find the area of the triangle. Enter your answer in the box. I really need help with this, the image is below
Answer: 12
Step-by-step explanation:
Area of trinagle = b * h /2
8*3= 24/2= 12
Which conclusion can be drawn from the scatter plot...
Answer:
3, there is a positive correlation
Step-by-step explanation:
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
Tom is twice as old as andy. in 4 years' time, the sum of their ages will be 32 years. Find andy's present age. Don't forget to identify your variable and answer in a full sentence.?
Answer:
8 years old
Step-by-step explanation:
Andy = x
Tom = 2x
So..
2x + 4 + x + 4 = 32
3x + 8 = 32
3x = 24
x = 8
Answer:
8 years old
Step-by-step explanation:
If we put Tom's age as x, since Andy is twice as old, Andy's age is 2x. Therefore, since Tom's age + Andy's age in two years is 32,
(x + 4) ← Tom's age in 4 years
(2x + 4) ← Andy's age in 4 years
We can now create an equation:
x+4 + 2x+4 = 32
Combining like terms, x + 2x = 3x, so now we have
3x + 4 + 4 = 32
4+4=8, so
3x + 8 = 32
-8 -8
3x = 24
Divide both sides by 3, and you have your answer ;
x = 8
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2x3y − 3x2 + 7y2x − 12y in standard form
Answer:
Step By Step Explanation:
Answer:
A) 2x3y + 7y2x − 3x2 − 12y
answer quick for brainliest!
A
Step-by-step explanation:
Find the length of the missing side and show the work please
Answer:
13 cm
Step-by-step explanation:
Using Pythagorean theorem
5²+12²=c²
25+144=c²
169=c²
In order to get rid of the ² it has to be square rooted
√169=√c²
c = 13
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
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.
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
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.
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:
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