help me answer question 8a and b, and I’ll give u 10 points lol
Answer:
Step-by-step explanation:
Find h when v = 20 and r = 3
Putting values in the formula
20 = (3.14)(3)2h
20 = (3.14)(9)h
20 = 28.26h
20/28.26 = h
R when v = 100 and h = 5
100 = (3.14)r2(5)
100/5 = 3.14r2
20 = 3.14r2
20/3.14 = r2
6.36 = r2
Square root on both sides
2.52 = r
Jess has 5 bouquets with 12 roses in each bouquet. Kyle has 12 bouquets with 5 roses in each bouquet. Which equation uses the commutative property to show that Jess and Kyle have an equal number of roses?
Answer:
Number of bouquet * roses per bouquet = roses per bouquet * Number of bouquet
5 * 12 = 12 * 5
60 = 60
Step-by-step explanation:
Given that :
Jesse :
Number of bouquet = 5
Roses per bouquet = 12
Kyle:
Number of bouquet = 12
Roses per bouquet = 5
To show commutativity :
Number of bouquet * roses per bouquet = roses per bouquet * Number of bouquet
5 * 12 = 12 * 5
60 = 60
Answer:
The answer is D.
Step-by-step explanation:
5x12 is equal to 12x5 (communitive property)
PLEASE HELP
What is the gradient of this line?
Answer:
Gradient of the line is 1/2 or 0.5
Step-by-step explanation:
If we use the simple formula
UP divided by ACROSS
Then we can substitute our numbers in. I used the co-ordinates (0,2) and (2,3).
This makes 1/2, because it goes 2 across and 1 up from (0,2) to (2,3).
Answer: 2 (I am not sure if this is correct)
Step-by-step explanation:
does anyone know the answer to this
Answer:
1^66 = 1
1^81 = 1
1^52 = 1
1^99= 1
Step-by-step explanation:
Hope this helps
The perimeter of a rectangular field that measures 2 feet by 18 inches is _________ ft.
Answer:
7 ft
Step-by-step explanation:
As we know that the formula to find the perimeter of a rectangle is
P = 2 (l) + 2(w). With that being said, we can look at the question.
The answer should be given in terms of feet, so we will have to convert 18 inches to ft. In order to convert from inches to ft, you will have to divide by 12.
18 / 12 = 1.5ft
18 inches = 1.5 foot
Now we take the given values and put them into the formula to find the perimeter of the rectangular field.
2 (l) + 2(w) = 2 (2 ) + 2 (1.5) = 7ft
The perimeter of the rectangular field is 7ft.
what do you call this form of quadratic function y=ax2+bx+c? how about y=a(x-h)2+k
Answer:
1. standard form
2. vertex form
Janet has a bag of marbles. The bag contains 10 blue, 5 green, and 1 orange marble. She will randomly select 1 marble from the bag. What is the probability that Janet will elect a green marble?
Answer:
5/16
Step-by-step explanation:
Answer:
The probability that Janet will elect a green marble is that if she shake them up and down. When she puts her hand in she has the move her hand around giving her the chance that she might pick a green marble.
I WILL GET A ZERO IF I DONT GET THIS RIGHT A) describe each two-dimensional figure cross section that results from slicing each three-dimensional figure
B)describe the two dimensional figure cross section that results from slicing the cylinder number 6 with a vertical cross-section
PLEASE HELP QUICK
Answer:
What is the two dimensional shape that is created when the shape provided is sliced horizontally? Explanation: A horizontal cut is a side to side cut. This shape is a right rectangular pyramid, which has a base of a rectangle and sides in the shape of triangles; thus, a horizontal cut would make a rectangle.
Step-by-step explanation:
what’s the answer (multiple choice) m
Answer: I think it’s A but I’m not really good with square roots.
Step-by-step explanation:
Devon waxes 1/2 of his car with 1/3 bottle of car wax. At this rate, what fraction of the bottle will Devon use to wax his entire car?
Answer:
2/3 bottle of car wax
Step-by-step explanation:
If Devon waxes 1/2 of his car with 1/3 bottle of car wax then he only has half of his car to finish. Since 1/2 of his car used 1/3 of wax then the other half will only take 1/3 of car wax.
Hope this helps!
Ennifer's boss asked her to make a box plot of the number of people who go to White Plains throughout the week. Here are the numbers of people she counted each day: 150, 210, 200, 85, 450, 180, 250
Answer:
The answer is below
Step-by-step explanation:
We are asked to create a box plot. To create a box plot, we need to determine the minimum point, maximum point, lower quartile, upper quartile, interquartile range, median.
First we have to arrange the data in ascending order. This gives:
85, 150, 180, 200, 210, 250, 450
The minimum point = 85
The maximum = 450
[tex]Median=\frac{2}{4}(n+1)^{th}term=\frac{2}{4}(7+1)=4^{th}\ term=200\\\\Median=200 \\\\Lower\ quartile(Q_1)=\frac{1}{4}(n+1)^{th}term=\frac{1}{4}(7+1)=2^{nd}\ term=150\\\\Lower\ quartile(Q_1)=200 \\\\Upper\ quartile(Q_3)=\frac{3}{4}(n+1)^{th}term=\frac{3}{4}(7+1)=6^{th}\ term=250\\\\Upper\ quartile(Q_3)=250 \\\\Interquartile\ range=Q_3-Q_1=250-150=100[/tex]
Write using an exponent.
–5 • –5 • –5 • –5
A. (–4)5
B. 4–5
C. –54
D. (–5)4
Answer:
D
Step-by-step explanation:
Help me out please!!!! (Operations of Functions) Giving alot of points for this if you answer these both two correctly.
Answer:
1) 20
2) 4
Step-by-step explanation:
1)
I) Substitute t with 2:
2² + 5(2) + 6
II) Simplify/Evaluate:
2² + 5(2) + 6
4 + 10 + 6
14 + 6
20
2)
I) Setup the equation:
g(t) = 5t - 2 = 18
5t - 2 = 18
II) Solve it:
Reorder the terms:
-2 + 5t = 18
Add 2 to each side of the equation:
-2 + 2 + 5t = 18 + 2
Simplify:
0 + 5t = 18 + 2
5t = 18 + 2
5t = 20
Divide each side by 5:
t = 4
Hope I helped :)
find the slope of the line that passing through the points (5,-2) and (5,8)
Answer:
undefined
Step-by-step explanation:
The midpoint of RS is point T. What are the coordinates
of point S?
5
4
3
R (-2,3)
01 - 3
0 1 )
2
1
45 -4 -3 -2 -1
2
3
4
5
X
O (8,4)
(10,-7)
-2
T(4-2)
-3
Answer:
( 10,-7)
i didn't understand what u wrote in choice
The coordinates of the point S of the line RS having midpoint T are found to be (10, -7).
What is mid point?In geometry, the midpoint is the middle point of a line segment. It is equidistant from both endpoints, and it is the centroid both of the segment and of the endpoints. It bisects the segment.
here, we have,
The points that are given to us are R(-2,3) and T(4, -2).
The point T is the mid point of the line segment RS.
If A(a, b) and B(c, d) are the two points then the mid point M of the two points will be,
M = ((a+c)/2), ((b+d/2))
So, using the above modified form of section formula we can find the coordinates of the point S.
Assuming point S to be x and y.
So, putting all the values,
(4, -2) = ((-2+x)/2), ((3+y/2))
Now, solving further, we get,
-1+x/2 = 4
-2+x = 8
x = 10
And,
3 + y = -4
y = -7
So, the coordinates are (10, -7).
To know more about mid point formula, visit,
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Length of x
A.6
B.10
C.6.2
D.8
Giving out 100 POINTS FOR THIS QUESTION!! Please don’t write nfoenwownw or something like that for the points!! I really need help! I WILL MARK BRAINLIEST!
What are the x-intercepts of the quadratic function shown?
A) (-1, -2)
B) (3,-4) and (-5,-4)
C) (1, 0) and (-3, 0)
D) (0, 1) and (0, -3)
Answer:
C) (1,0), and (-3,0)
Step-by-step explanation:
The parabola intercepts the x axis at points (1,0) and (-3,0).
your answer is
C) (1,0), and (-3,0)
have a good dayyy!
The button on Keith's shirt has a radius of 3 cm.
Calculate the circumference of the button on
Keith's shirt.
Answer:
first find the diameter 3x2=6
6 is the diameter multiply the diameter x 3.14
6x3.14=18.84
Step-by-step explanation:
Please help will give brainliest
Answer:
C, D, F
Step-by-step explanation:
I hope it helps, sorry if any wrong.
5 2/3 + 7 5/9 ples I nnmed help
Answer:
Step-by-step explanation:
Solution
=5 2/3 + 7 5/9
=3×5+2/3+9×7+5/9
=17/3+68/9
=119/9
=13.22
Hope it helped you.
Help a sista oooouuuttt!!!
Volunteers recently planted a new tree in the town square, and its leaves are doubling in number each month. This
will last for only 3 more months, until the end of summer. If the tree began with 246 leaves, how many leaves will it
have before autumn?
Answer:
1968
Step-by-step explanation:
246×2=492(First month)
492×2=984(Second month)
984×2=1968(Third month)
Solve the system
9x^2 + 4(y - 2)^2 = 36
x^2 = 2y
Answer: y = 2 and x = 2
Step-by-step explanation:
[tex]9x^2+4(y-2)^2=36\\x^2=2y[/tex]
First, get the entire thing in terms of y, because you cant solve for two variables at the same time. They gave us the fact that x^2 = 2y
[tex]9(2y)+4(y-2)^2=36\\18y+4(y^2-4y+4)=36\\18y+4y^2-16y+16=36\\4y^2+2y-20=0[/tex]
What two numbers multiply to equal -80 but add to equal 2? That is +10 and -8.
[tex]4y^2+2y-20=0\\(4y^2-8y)+(10y-20)=0\\4y(y-2)+10(y-2=0)\\(4y+10)(y-2)=0\\y=-5/2\\y=2[/tex]
Now solve for x by plugging in y to the easier equation
[tex]x^2=2(-5/2)\\x\neq \sqrt{-5}[/tex]
If I didn't make a mistake, this should be the only answer. In the case of y = -5/2, you would get an imaginary x-value. Therefore y cannot equal -5/2
[tex]x^2=2(2)\\x=2[/tex]
The solution of the expression are,
x = 2.28 , y = 2.62
Or, x = 3.9i , y = - 7.62
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The system of equations are,
9x² + 4 (y - 2)² = 36 .. (i)
x² = 2y .. (ii)
Substitute the value of x² from (ii) in (i);
9x² + 4 (y - 2)² = 36
9 × 2y + 4 (y - 2)² = 36
18y + 4 (y - 2)² = 36
9y + 2 (y - 2)² = 18
9y + 2 (y² + 4 - 2y) = 18
9y + 2y² + 8 - 4y = 18
2y² + 5y + 8 - 18 = 0
2y² + 5y - 10 = 0
y = - 5 ± √5² - 4×2×- 10 / 2×2
y = - 5 ± √ 25 + 80 / 2
y = - 5 ± √ 105 / 2
y = - 5 ± 10.24 / 2
y = - 5 + 10.24 / 2
y = 5.24/2
y = 2.62
y = - 5 - 10.24 / 2
y = - 15.24 / 2
y = - 7.62
From (ii);
x² = 2y
x² = 2 × 2.62
x² = 5.24
x = 2.28
x² = 2y
x² = 2 × - 7.62
x² = - 15.24
x = 3.9i
Thus, The solution of the expression are,
x = 2.28 , y = 2.62
Or, x = 3.9i , y = - 7.62
Learn more about the mathematical expression visit:
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what does the intersection of two lines represent
Answer:
the solution for the two functions
Step-by-step explanation:
the coordinate that satisfies both equations
Helppppppppppppppppppp I’ll mark you brainlist
Answer:
1
Step-by-step explanation:
its subtracting 5 every step, 11, 6, 1, -4, -9
Answer:
1
Step-by-step explanation:
It does substract 5 every single time so it's
11 , 6 , 1 , -4 , -9 , -14 , -19 and so on.
Which equation would you use to solve the following situation?
The first 3 people arrive at a party. Several more people come, and now there are 14 people at the party. How many people arrived after the first three people?
x + 14 = 3
3 + 14 = x
x - 3 = 14
3 + x = 14
In a fruit survey , 30 children choose their favourite
fruit out of apples, bananas and watermelon.10% choose
apples, 30% choose bananas. How many children choose
watermelon?
Answer:
60%
Step-by-step explanation:
Jenny cut her pizza into 8 equal slices and ate some of them. Billy cut his
pizza into less than 8 equal slices, but ate the same amount of pizza as
Jenny. Use the circles below to show or explain in words how many slices
Jenny and Billy could have eaten. (2 pts)
Answer:
Billy could have cut his pizza into 7,6,5,4,3,2, or 1 slices of pizza
Step-by-step explanation:
Billy ate less than 8 slices of pizza so billy could have sliced his pizza into any number that is less than 8
24x-45y=34x
(rp)
have a great day
THANKS FOR GIVING ME THX
AND HI NICE TO MEET U
I AM GIRL THIS IS MY BROTHER PHONE
CAN YOU HELP ME PLEASE HURRY PLEASE HURRY :(
-2y+6=-12
What does y equal?
Answer:
y = 9
Step-by-step explanation:
-2y+6=-12
subtract 6 on both sides: -2y=-18
divide both sides by -2: y=9
Answer:
[tex]y = 9[/tex]
Step-by-step explanation:
1) Subtract 6 from both sides.
[tex] - 2y = - 12 - 6[/tex]
2) Simplify -12-6 to -18.
[tex] - 2y = - 18[/tex]
3) Divide both sides by -2.
[tex]y = \frac{ - 18}{ - 2} [/tex]
4) Two negative makes a positive.
[tex]y = \frac{18}{2} [/tex]
5) Simplify 18/2 to 9.
[tex]y = 9[/tex]
So, Yherefor, the answer is, y = 9.