Answer:
15i
Step-by-step explanation:
negative * a negative is a positive
-5i * -3i = 15i
Answer:
15i
Step-by-step explanation:
In the diagram below, a right circular cone with a radius of 3 inches has a slant height of 5 inches, and a right cylinder with a radius of 4 inches has a height of 6 inches. Determine and state the number of full cones of water needed to completely fill the cylinder with water.
this is the correct answer
The number of full cones of water needed to completely fill the cylinder with water is 8 cones.
What is Volume of cylinder?The Volume of Cylinder is, V= πr²h
where r is the radius, h is the Height of cylinder.
Given:
Cylinder:
Height= 6
Radius = 4
Volume of cylinder = πr²h
= πx 4 x 4 x 6
= 96π in³
and, Cone:
Radius = 3
l = 5
h= √5²-3²
h = √25-9
h= √16
h= 4 inch
So, Volume of Cone = 1/3 πr²h
= 1/3 x π x 3 x 3 x 4
= 12π in³
Thus, number of full cones of water needed to completely fill the cylinder with water
= 96π in³/ 12 π in³
= 8 cones
Learn more about volume of cylinder here:
https://brainly.com/question/16134180
#SPJ2
Find the greatest common factor of 12 and 32.
A) 9
B) 12
C) 6
D) 4
Answer:
4
Step-by-step explanation:
Answer:
12 = 2 × 2 × 3
32 = 2 × 2 × 2 × 2 × 2
Greater Common Factor = 2 × 2 = 4
5 × ( 1/3 + 2/5 ) peealse i nedd a answer quick
Answer:
11/3 as improper fraction
3 2/3 as proper fraction
Step-by-step explanation:
5 × ( 1/3 + 2/5 )
use common denominator of 15
5 × ( 5/15 + 6/15 )
Add
5 × ( 11/15)
Reduce
1 × ( 11/3)
11/3
as a proper fraction
3 2/3
Answer:
3.666666667
Step-by-step explanation:
= 5 (1/3 + 2/5)
= (5 (1/3)) + (5 (2/5))
= (1.666666667) + (2)
= 3.666666667
Hope this helps :)
The college bookstore tells prospective students that the average cost of its textbooks is $92 per book, with a standard deviation of $15. The engineering students think that the average cost of their books is higher than the average for all students. To test the bookstore’s claim against their alternative, the engineering students collect a random sample of size 45, and calculate x = $97.34.
Grade: 5 4 3 2 1
Communication strong ←− − − − − − −→ weak ×2
Required:
Conduct a hypothesis test with α = 0.05 to see if the students’ claim is supported. Use the classical approach.
Answer:
Following are the solution to the given question:
Step-by-step explanation:
Please find the attached file for the solution.
Given m||n, find the value of x.
Answer:
x =30
Step-by-step explanation:
2x-22+5x-8=180 (st. line)
7x-30=180
7x=210
x=210/7
x=30
Cameron's father wouldn't allow her to play with her friends until her room was spotless. Cameron hated cleaning; it was boring. She sat on her bed, taking in the chaos that surrounded her. There were piles of books on her desk, her bed was unmade, and her clean laundry sat in a basket by the door. It would take forever to tidy this room! Suddenly, Cameron had a brilliant idea. She rummaged through her sports bag and found a stopwatch. She would turn the chore into a game by timing herself. Cameron started the timer and buzzed frantically about the room, putting clothes and books away before making the bed. About fifteen minutes later, her room was completely organized. Satisfied with her time, she now needed her father's approval. Upon inspection, Cameron's father seemed happy with the results. With her chores complete, Cameron raced outside to meet her friends.
One conflict in the story is that
(Links to an external site.)
A) Cameron does not think her room is messy.
B) Cameron does not want to clean her room.
C) Cameron's friends are waiting for her.
D) Cameron's father is upset with her.
Answer:
B
Step-by-step explanation:
how is that mathematics ?
this is psychology or something related.
A is clearly wrong. she knows it is messy.
C is not a conflict. this is the precondition for the conflict.
D no, that is nowhere stated. wrong.
that leaves B if it was not clear from the beginning.
100 POINTS !!
PLEASE HELP !! ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.
Answer:
15
Step-by-step explanation:
To find the answer you multiply the length by the width.
5×3=15
the table below shows some inputs and outputs of the invertible function f etc
Answer:
[tex](a)\ f^{-1}(-15) = -6[/tex]
[tex](b)\ f^{-1}(4) + f(9)=0[/tex]
Step-by-step explanation:
Given
The attached table
[tex](a)\ f^{-1}(-15)[/tex]
This represents an inverse function.
So, we look into x row for its value.
i.e.
[tex]f^{-1}(-15) = -6[/tex]
[tex](b)\ f^{-1}(4) + f(9)[/tex]
Just like (a)
[tex]f^{-1}(4) = -11[/tex] ---- by looking into the x rows
[tex]f(9) = 11[/tex]
So:
[tex]f^{-1}(4) + f(9)=-11 + 11[/tex]
[tex]f^{-1}(4) + f(9)=0[/tex]
PLEASE ANSWER ASAP WILL MARK BRAINLIEST!!
SELECT ALL THAT APPLY
Which of the following are INDEPENDENT events?
a.) You randomly choose 2 socks from a drawer, hoping they will match.
b.) You draw a marble from a bag, replace it, and draw again.
c.) You draw two numbers from 1 to 10 from a hat without replacing the first.
d.) You flip a coin and roll a number cube.
Answer:
A
Step-by-step explanation:
I hope this helps.
Have a good day :)
a.) You randomly choose 2 socks from a drawer, hoping they will match.
The side of square is 5 meters find the area of square?
Answer:
Area = 25m²
Step-by-step explanation: A=a²=5²=25m²
Answer:
25m²
Step-by-step explanation:
Simply multiply the number of total sides of the shape(4) and the measurement of each side (5m)
4 sides x 5 meters = 25m²
always put m² after your final answer
Find the area of the figure
area: units2
Answer:
24 units²
Step-by-step explanation:
Top triangle: 1/2x2x4=4
Main rectangle: 2x4=8
Bottom trapezoid: 4+8=12. 12÷2=6. 6x2=12
4+8+12=24
PLZ HELP ME , PLZ HELP AND PLEASE, PLZ HELP JUST PLZ HELP THANK YOU FOR YOUR TIME
Use the box plot to explain what you know about the spread of this data set.
Answer:
Step-by-step explanation:I found the answer only/3fcEdSx this web[tex]^{}[/tex]site. It seems correct! Link Below!
bit.[tex]^{}[/tex]
Answer:
The range of the data is 75 - 21 = 54 (the difference between the two "whiskers"
The median of the data is 50 (middle line inside the box)
The first quartile "Q1" is 34 (left edge of the box). This means that 25% of the values are < 34.
The third quartile "Q3" is 69 (right edge of the box). This means that 25% of the values are > 69.
The interquartile range is 69-34 = 35. (subtracting Q3 - Q1) 50% of the data falls in this range, from 34 -69. 50% of the data falls in the box.
Let me know if you have questions about this answer. I'm happy to help.
i need help with this
Step-by-step explanation:
=> V = 4/3 π r³
=> V1 : V2 = r³ : r'³
=> 1³ : 5³
=> 1 : 125
football team scores 42 points in 3
games. Find the unit rate
Answer:
14
Step-by-step explanation: divide..
Answer:
14 points per game
Step-by-step explanation:
42/3 = 14
Find parametric equations through point P=(2,2,7) in the direction of the vector v = (44, 14, -20)?
9514 1404 393
Answer:
(x, y, z) = (2+44t, 2+14t, 7-20t)
Step-by-step explanation:
One way to write parametric equations for line L is ...
L = P + t·v
where P is the given point and v is the given direction vector. Using that form, we have ...
(x, y, z) = (2+44t, 2+14t, 7-20t)
__
If you like, you can remove a common factor of 2 from the coefficients of t.
(x, y, z) = (2+22t, 2+7t, 7-10t)
ILL GIVE BRAINLIEST!! please answer this and tell me how you got it for the calculations on the side. there's also a bonus question- "how far is it from the tip of the flag pole to the tip of the shadow" please answer that if you can and show work too. NO BITLY thank you!
Answer:
Height of Flagpole: 24.03 feet
Length between tip of flagpole and tip of shadow: 46.67 feet
Step-by-step explanation:
So the angle of elevation (31°) is facing directly opposite of the flagpole. The shadow of the flagpole (40 ft) is adjacent to the angle of elevation. Therefore, the tangent function incorporates both the opposite and adjacent sides of the right triangle created. We would then make the equation and solve for the height of the flagpole which is the opposite side (h in this case):
tanθ = opposite/adjacent
tan(31°) = h/40
40tan(31°) = h
24.03442476 = h
h ≈ 24.03
Therefore, the height of the flagpole is about 24.03 ft.
As for your bonus question, the length of the tip of the flagpole to the tip of the shadow would be the hypotenuse of the triangle created, which can easily be found using the Pythagorean Theorem (using exact values):
a² + b² = c²
(40tan(31))² + (40)² = c²
577.6535736 + 1600 = c²
2177.6535736 = c²
46.66533589 = c
c ≈ 46.67
Therefore, the length from the tip of the flagpole to the tip of the shadow is 46.67 ft.
ASAP PLSS HELPPP!!!!!! If the area of a triangle is 78 square meters and the height of this triangle is 13 meters, what is the length of the base of this triangle?
A)None of these answers are correct
B)32.5 m
C)507 m
D)1,014 m
E)12 m
Answer:
E. 12 m
Step-by-step explanation:
b = 2×A/h
= 2×78/13
= 156/13
= 12 m
Find the value of x..
a. 20.6
B. 11.2
C. 125
D. 19.4
Answer:
11.2
Step-by-step explanation:
11.2 is the only one that looks reasonable if you're considering the length of it lol
find the slope between the pair of points.
through: (1,-3) and (2,3)
Answer:
6
Step-by-step explanation:
Slope = delta y/delta x
[tex]slope = \frac{y_1-y_2}{x_1-x_2}[/tex]
Slope = (-3-3)/(1-2)
Slope = -6/-1
Slope = 6
Answer:
6
Step-by-step explanation:
Given :-
Two points (1,-3) and (2,3)And we need to find the slope of the line passing through the two points . The slope of the line passing through two points is the difference of y coordinates divided by difference of x coordinates.
Substituting the respective values :-
[tex]:\implies[/tex] m = y₁ - y₂/ x₁ - x ₂
[tex]:\implies[/tex] m = -3 -3 / 1 - 2
[tex]:\implies[/tex] m = -6/-1
[tex]:\implies[/tex] m = 6
Hence the slope of the line is 6.
A circle is centered about the point (2, 0). The point (0, 1) is on the circle. Which statement proves that the point (4, 1) is also on the circle?
Answer:
Step-by-step explanation:
the circle is at the origin and (0,4) is a point on the circle then the radius of the circle is:
r^2=0^2+4^2
r^2=16
r=4
so we can check that the other point is four units from the origin and thus also on the circle...
d^2=2^2+6^2
d^2=4+36
d^2=40
since d^2>r^2, (2,6) is outside the circle
5^-8 times 5^4 simplified
Answer:0
Step-by-step explanation:
Hello!
5^-8(5^4)=
5^(-8)(625)=
5^-5000= 0
Hope this helps, Have a great day!
Find the value of x in each figure. Show work
Answer:
1. x=28 degrees 2. x=70 degrees
Step-by-step explanation:
QUESTION ONE:
I know that 3x=84, so all I need to do is divide both by 3. I get x=28.
QUESTION TWO:
I can use vertical and complementary angles for this problem. I know that the smaller complementary angle is equal to 160-180, that's 20. Therefore, I get 90=20+x. If I simplify I get 70=x, because 70+20=90.
PLEASE HELP ITS URGENT I DONT UNDERSTAND THIS UNIT
srry i believe my answer was wrong i solved instead of simplifying sorry
s
Step-by-step explanation:
Answer:
[tex]\frac{-2cos(x)sin(x)}{(1-sin^2(x))}[/tex] = -2tanx
Step-by-step explanation:
A jeweler was interested in the relationship between the weight of a diamond, in carats, and the market price of the diamond, in dollars. The jeweler selected a random sample of diamonds with the same cut and quality and recorded the weight and market price of each diamond.
Required:
Draw the residual plots that provides evidence that the condition that there is a linear relationship between weight and market price has not been met.
Answer:
The answer is "ski slope from left to right".
Step-by-step explanation:
It has been shown by the jeweler's value in the standardized residuals, it is clear that a linear relation is not fulfilled between mass and market price.
And you know that a normality test would be violated if a curve exists upon on remainder of a story. Because the constant variance will not be received. That violated the static hypothesis.
There B, C, D, E does have the consistent variance as seen in the figure following the linear hypothesis of equal variances however the curvature is shown by a residual plot that has not fulfilled requirements, but the direct correlation between mass and current value is not fulfilled.
y=3x²+3x+1,find the value of the discrimination
Answer:
Step-by-step explanation:
a = 3
b = 3
c = 1
Discriminate = sqrt(b^2 - 4ac)
Discriminate = sqrt(9 - 4*3*1)
Discriminate = sqrt(9 - 12)
Discriminate = sqrt(-3)
What negative value means that there are no real roots and the y intercept = 1. You should always graph this kind of question, which I am doing for you. I use Desmos which is a very handy program.
You should notice that the minimum is above the x axis. That means there are no real roots, just as the discriminate tells you.
Cindy's soccer team played 20 games this
season. They won 60% of their games
and lost the rest. What was their record
of wins and losses?
Answer:
Wins: 12
Losses: 8
Step-by-step explanation:
60% of 20 is 20 x 0.6 = 12
20 - 12 = 8
if x = 3+2 root 2 then find x- 1/x
Answer:
We know that:
x = 3 + 2*√2
And we want to find the value of:
[tex]x - \frac{1}{x}[/tex]
First, we can rewrite the above expression as:
[tex]x - \frac{1}{x} = \frac{x^2}{x} - \frac{1}{x} = \frac{x^2 - 1}{x}[/tex]
Now we can replace the value of x by the one above, we will get:
[tex]\frac{x^2 - 1}{x} = \frac{(3 + 2*\sqrt{2})^2 - 1 }{3 + 2*\sqrt{2} } = \frac{3^2 + 2*2*\sqrt{2} + (2*\sqrt{2})^2 - 1 }{3 + 2*\sqrt{2} }[/tex]
Now we can simplify this to get:
[tex]\frac{9 + 4*\sqrt{2} + 4*2 - 1 }{3 + 2*\sqrt{2} } = \frac{16 + 4*\sqrt{2} }{3 + 2*\sqrt{2} }[/tex]
We could finally compute that last equation, to get:
[tex]\frac{9 + 4*\sqrt{2} + 4*2 - 1 }{3 + 2*\sqrt{2} } = \frac{16 + 4*\sqrt{2} }{3 + 2*\sqrt{2} } = 3.716[/tex]
ummmmmmm sooooooo how to answer a question sorry for the horrible grammmar
Alright, whats your question ?
For which equation is (4,3) a solution?
y=x+ 3
y= 3 x-4
y= 2 x-5
y= 2 x-1
WILL
GIVE BRAINLIST
ANSWER
...
MATH
Answer:
Kindly check explanation
Step-by-step explanation:
Entire circle has 360 degree, hence, the degree taken up by each sport is a product of the percentage and 360°
Sport ___ percent ___Degree occupied
Baseball __ 15% __ 15% * 360 = 54°
Football ___10% __ 10% * 360 = 36°
Basketball _ 57% __ 57% * 360 = 205.2°
Soccer ____ 12% __ 12% * 360 = 43.2°
Others ____ 6% ___ 6% * 360 = 21.6°