Answer:
A = 90.25pi sq m
OR = 361pi/4 sq m
Step-by-step explanation:
If the circumference is 19pi, then the diameter is 19.
C = pi•d
19pi = pi•d
19 = d
If the diameter is 19, then the radius is 9.5.
The radius is always half of the diameter.
Then we can find the area.
A = pi•r^2
=pi•9.5^2
=90.25pi
We don't often see a decimal number coefficient for pi. So as an improper fraction, 90.25 which is 90 1/4 is
(90×4)+1 over 4
= 361/4
Area = (361/4)pi
=361pi/4 sq meters
Write the phrase as an expression. Then evaluate the expression when x=2 . 8 more than a number x An expression is . The value of the expression is .
The percentage of sales tax is 6%. What is the sales tax on a skateboard that costs $98?
Answer:
$5.88
Step-by-step explanation:
Step 1: Multiply 6 by 98.
6 × 98588Step 2: Divide 588 by 100.
588 ÷ 1005.88Therefore, the sales tax price is $5.88.
Answer:
I believe it would be $5.88
When 2^7 is written as a repeated multiplication product, the only factor is
Answer:
2 x 2 x 2 x 2 x 2 x 2 x 2 = 256
A store has 32 boxes of candles. Each box contains 24 candles. What is the total number of candles?
Answer:
The total amount of candles is 768.
Step-by-step explanation:
Why? If there are 32 boxes of candles and 24 candles are in each box you would have to multiply 32x24 which is = to 768 candles in each box.
A cylinder has a height of 11 meters and a volume of approximately 1243 cubic feet. What is the height of a cone with the same volume and radius as the cylinder?
Answer:
Step-by-step explanation:
Comment
There is a short cut to this and we might just as well use it. Start by writing the general formulas for the volume of a cylinder and the volume of the cone
Equation
V_cylinder = pi * r^2 * h
V_Cone = (1/3) pi * r^2 * h1
Solution
The volumes are equal, so the right sides must be equal as well
pi * r^2 * h = (1/3)*pi * r^2 * h1 Divide both sides by pi
r^2 * h = (1/3) * r^2 * h1 Divide both sides by r^2
h = (1/3) * h1 Multiply both sides by 3
3*h = h1 h = 11 (given)
3*11 = h1
33 = h1
Answer: the cone's height = 33 meters.
Which expression is equivalent to 5x+10y-15?
5(x-2y-3)
5(x+5y-10)
5(x+2y-3)
5(x+2y-15)
Answer:Third optionoption
Step-by-step explanation:
Which expressions are equivalent
In the figure, j∥k and m∠1 = 63°.
What is the m∠4?
Enter your answer in the box.
°
Line t diagonally crossing parallel lines j and k (reading from top to bottom). Angles formed by t crossing j are labeled one through four, starting at top right and going counterclockwise, where angle one is acute. Angles formed by t crossing k are labeled five through eight, starting at top right and going counterclockwise.
Answer: 117
Step-by-step explanation:
Answer: 117
Step-by-step explanation: K12 Quiz, The answer above is correct.
In the data set (0,-1);(-2,4);(-4,-8);(-1,5);(2,1);(3,-2);(-1,2)},which point is a possible outlier?
Find the measures of the numbered angles in rhombus ABCD .
look for all four measures numbered in the photo
Answer:
<1=54, <2=36, <3=90, <4=36
Step-by-step explanation:
in the rhombus shown, there are 4 congruent right triangles because the disgonals of a rhombus are perpendicular and the sides of a rhombus are congruent. We already know that the larger acute angles are all 54 degrees and we can use triangle sum to find that the smaller acute angles are all 36 degrees. Obviously the right angles are 90 degrees, so we can look at the picture and find the marked angles.
Find 20% of 75:please help
Answer:
hi its 15
Step-by-step explanation:
20% as a decimal is 0.20
0.20 x 75 is 15
give brainliest? (click the crown at the top)
(3 4.1. A book is bought for R 50 and sold for R80.What is the percentage profit? unntmont?
Answer:60%
R80-R50=R30
R30/R50*100%=60%
Step-by-step explanation:
If the rise is 6 and the run is 2, what is the slope?
4
3
8
-3
Answer:
3
Step-by-step explanation:
[tex]\frac{rise}{run} =\frac{6}{2}=3[/tex]
Hope this helps!
The slope is [tex]\frac{rise}{run} =\frac{6}{2} =3[/tex]
Thus the slope is 3.
If a total of 1,176 dancers at a beyonce music video audition are divided into 6 equal sized teams how many dancers are on each team
Answer:
196
Step-by-step explanation:
1176/ 6
= 196 dances are on each team
If a 16-ounce can of soda has 45 calories per 8 ounces, how many calories are in the can?
Answer: 90
Step-by-step explanation:
if its 45 for 8 ounces 8+8=16 so just do 8 times 2 to get 16 ounces and do 45 times 2 to get 90.
If continuous random variable X is normally distributed, with µ = 8.7 and σ = 3.9, what is P(X > 14)?
12.30%
87.70%
91.31%
8.69%
Answer:
I believe it is number 3.
2x+5y=0
3x-4y=23
solve the following simultaneous equation
Answer:
[tex]x = 5[/tex], [tex]y = -2[/tex]
Step-by-step explanation:
[tex]2x + 5y = 0[/tex]
[tex]3x - 4y = 23[/tex]
By using substitution:
[tex]2x + 5y = 0[/tex]
[tex]2x = -5y[/tex]
[tex]x = -\frac{5}{2}y[/tex]
[tex]3x - 4y = 23[/tex]
[tex]3 (-\frac{5}{2} y) - 4y = 23[/tex]
[tex]-\frac{23}{2} y = 23[/tex]
[tex]y = -2[/tex]
[tex]x = -\frac{5}{2} y[/tex]
[tex]x = -\frac{5}{2} (-2)[/tex]
[tex]x = 5[/tex]
Find the length of AB
Answer:
D
Step-by-step explanation:
calculate AB using the distance formula
d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]
with (x₁, y₁ ) = A (4, 2 ) and (x₂, y₂ ) = B (9, 10 )
AB = [tex]\sqrt{(9-4)^2+(10-2)^2}[/tex]
= [tex]\sqrt{5^2+8^2}[/tex]
= [tex]\sqrt{25+64}[/tex]
= [tex]\sqrt{89}[/tex]
≈ 9.4 units ( to 1 dec. place )
Answer:
[tex]D:\:about\:9.4\:units[/tex]
Step-by-step explanation:
[tex]d=\sqrt{(x_{2}-x_{1})^2 +(y_{2}-y_{1})^2 }[/tex]
[tex]AB =[/tex] [tex]\sqrt{(9-4)^2+(10-2)^2}[/tex]
[tex]=\sqrt{5^2+8^2}[/tex]
[tex]=\sqrt{25+64}[/tex]
[tex]=\sqrt{89}[/tex]
[tex]9.4\:\:units\:[/tex]
Please help me ASAP!!!!!!
Answer:
The last one
Step-by-step explanation:
A positive multipled by a negative equals to negative
HELP ASAP EASY THING IM JUST DUM There are 8 tenths and 24 hundredths. After regrouping hundredths into tenths, there are ? tenths and ? hundredths. After regrouping tenths into wholes, there are
? whole, ? tenths, and ? hundredths.
Answer:
8 wholes 2 tenths 4 hundredths
Step-by-step explanation:
We just take apart the numbers and give them to other numbers. Hope it helped!
expand and simplify x(x-4)(x-1)
Answer:
x^3 - 5x^2 +4x
Step-by-step explanation:
x(x-4)(x-1)
(x^2-4x)(x-1)
x^3-x^2-4x^2+4x
simplify
x^3-5x^2+4x
Answer:
Expand:
This is in its expanded form.
Simplify:
First do the x and the (x-4)
distribute the x
(x^2-4x)
Then FOIL or draw you grid and multiply out.
x^2 times x = x^3
x^2 times -1 = -x^2
-4x times x = -4x^2
-4x times -1 = 4x
Combine like terms.
x^3 + (-4x^2 -x^2) + 4x
Answer : x^3 - 5x^2 + 4x
what shape are these
Answer:
Those are quadrilaterals
Answer: Square Rhombus
Step-by-step explanation:
PLEASE HELPPPPPPPPPP!!!! AI HAVE 10 MINUTES LEFTTTTT
The formula is in a quadratic formula shape: [tex]y = ax^2+bx+c[/tex]
The function is negative since the value 'a' the coefficient of x^2 is negative meaning that the quadratic function is facing downards. If you don't get this explanation, take a look at the diagram I uploaded.
That means the highest point of the graph is its vertex.
But we must find where the vertex is at or the 't' value.
't' value at which vertex is = [tex]-\frac{b}{2a} =-\frac{16}{2*(-16)} =\frac{1}{2}[/tex]
Now plug this 't' value into h(t) to find the maximum height, and we will get 36 feet.
Hope that helps!
Solve 3x - 6 > 8 using inverse operations
Answer:
x > 14/3
Step-by-step explanation:
3x > 8 + 6
3x > 14
x > 14/3
Answer:
x > 14/3
Step-by-step explanation:
[tex]3x-6 > 8\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:x > \frac{14}{3}\:\\ \:\mathrm{Decimal:}&\:x > 4.66666\dots \\ \:\mathrm{Interval\:Notation:}&\:\left(\frac{14}{3},\:\infty \:\right)\end{bmatrix}[/tex]
[tex]\mathrm{Add\:}6\mathrm{\:to\:both\:sides}[/tex]
[tex]3x-6+6 > 8+6[/tex]
[tex]\mathrm{Simplify}[/tex]
[tex]3x > 14[/tex]
[tex]\mathrm{Divide\:both\:sides\:by\:}3[/tex]
[tex]\frac{3x}{3} > \frac{14}{3}[/tex]
[tex]\mathrm{Simplify}[/tex]
[tex]x > \frac{14}{3}[/tex]
[RevyBreeze]
I need helpppppppppppppppp
Answer:
b 60 -4x 50 +2x=2,800 is 50 +. 2x
50 pointsss tysm nnnnnn
Answer:
1 batch of sky blue paint:
blue paint = 2 cupswhite paint = 1 gallonClare can make 2 batches of sky blue paint by multiplying the components by 2:
2 batches of sky blue paint:
blue paint = 2 × 2 = 4 cupswhite paint = 1 × 2 = 2 gallonsSo she will need 4 cups of blue paint and 2 gallons of white paint to make 2 batches of sky blue paint.
To make a mixture that is a darker shade of blue, increase the proportion of blue paint and reduce the proportion of white paint.
To make a mixture that is a lighter shade of blue, increase the proportion of white paint and reduce the proportion of blue paint.
Please help me plsssss
answer this please
prove triangle are congruent if the two column proof
Answer:
Step-by-step explanation:
Order from greatest to least -8 -4.75 -0.9 -.25
Answer:
-.25,-0.9,-4.75,-8
Step-by-step explanation:
sorry if im wrong
Answer:
1. -0.25
2. -0.9
3. -4.75
4. -8
Step-by-step explanation:
What is 10,274 - 100,000
Answer:
_89,726
Step-by-step explanation:
This would be a negative answer in less you mean 100,000 - 10,274.
This would be negative because 10,000 per say can't subtract 100,000 in less it goes on the negative side.
But if you meant 100,0000-10,274 it is the same answer just with no nefative sign
Hope this heos have a great day