Answer:
It is not
Step-by-step explanation:
Explanation:
Using a calculator, we find that
sqrt(1815) = 42.6028168082816
which is not a whole number. The decimal numbers go on forever without any known pattern. Therefore, this number is irrational. This means it is not rational.
Please help. write you answer without negative exponents.
Answer:
-4a^4b^2
Step-by-step explanation:
-4a^7b^6/a^3b^4
-4a^4b^6/b^4
-4a^4b^2
The mean of a normally distributed dataset is 12, and the standard deviation is 2.
Step-by-step explanation:
sorry what is the question?
A pair of socks costs $2.50 originally. The price is reduced to $1.75. What is the percent change?
｡☆✼★ ━━━━━━━━━━━━━━ ☾
% change = difference / original x 100
% change = (0.75 / 2.5) x 100
% change = 30%
It was a 30% change
Have A Nice Day ❤
Stay Brainly! ヅ
- Ally ✧
｡☆✼★ ━━━━━━━━━━━━━━ ☾
Answer:
They are 30% less
Step-by-step explanation:
2.5:100=0.75:x
Betty is now three times as old as Mickey, but in five years she will be only twice as old as Mickey. What are the respective ages of Mickey and Betty now?
(Please show all your work and steps such as: key statement, so statement solution and steps thank you!)
Answer:
The answer is 15
Step-by-step explanation:
could be 15 but (three times) is geting me off
sorry if i was no help and all the number's wow
c. A vendor at a street fair sells popcorn in cones, all of height 9 inches. The sharing-size cone has 3 times the radius of the skinny-size cone. About how many times more popcorn does the sharing cone hold than the skinny cone?
Answer:
Sharing cone holds 9 times more popcorn than a skinny cone.
Step-by-step explanation:
Height of each cone = 9 inches
Radius of the sharing size cone = 3 times radius of the skinny size cone
Let the radius of skinny size cone = r
Then radius of the sharing size cone = 3r
Volume of the sharing size cone = [tex]\frac{1}{3}(\pi )(\text{Radius})^{2}(\text{Height})[/tex]
= [tex]\frac{1}{3}(\pi )(3r)^{2}(9)[/tex]
= 27πr²
Volume of the skinny size cone = [tex]\frac{1}{3}(\pi )(\text{Radius})^{2}(\text{Height})[/tex]
= [tex]\frac{1}{3}(\pi )(r)^{2}(9)[/tex]
= 3πr²
Ratio of the volumes = [tex]\frac{\text{Volume of sharing size cone}}{\text{Volume of skinny size cone}}[/tex]
= [tex]\frac{27\pi r^{2}}{3\pi r^{2} }[/tex]
= 9
Therefore, sharing cone holds 9 times more popcorn than a skinny cone.
Aaron gets paid $7.00 an hour at his job.how much money would he earn if he spends 2 hours a day working
Answer:
14 dollars in one day
35 dollars if he works five days a week
49 dollars if he works 7 days a week
Step-by-step explanation:
Answer:
$14.00
Step-by-step explanation:
$7.00 x 2= $14.00
:>
PLEASE HELP !!! When 3x^2 - 5x + c is divided by x + k, the quotient is 3x + 1 and the remainder is 3. Find c and k.
Answer:
The values are k = -2 and c = 1
Step-by-step explanation:
Since it's a division of polynomials we can calculate "c" and "k" by using the inverse operation, which is the product. We need to multiply "x + k" with "3x + 1" and sum it with 3, that should be equal to "3x² - 5x + c". We have:
[tex]3x^2 - 5x + c = (x + k)*(3x + 1) + 3\\3x^2 - 5x + c = 3x^2 + x + 3kx + k + 3\\3x^2 - 5x + c = 3x^2 + (1 + 3k)x + (k+3)[/tex]
In order for two polynomials to be equal, every coefficient must be equal, therefore:
[tex]-5 = 1 + 3k\\1 + 3k = -5\\3k = -5 -1\\3k = -6\\k = -2[/tex]
[tex]c = k + 3\\c = -2 + 3\\c = 1[/tex]
find the area of each Arc. Use the 3.14 as the value of pi. Round your answer to the nearest tenth. Label unit
Answer:
18.8 m²
Step-by-step explanation:
The area of a sector is given by the formula ...
A = (1/2)r²θ . . . . . . . r is radius, θ is the central angle in radians
To convert an angle in degrees to one in radians, multiply by π/180°.
Your 135° sector has an area of ...
A = (1/2)(4 m)²(135°)(π/180°) = 6π m²
A ≈ 18.8 m²
Only do question 12
50 points
Topic: Percentage
Answer:
a. 264.5
b.40.375
c.0.1
d.0.8
e.7656
f.500
Step-by-step explanation:
a. [tex]\frac{115}{100}*230=\frac{26450}{100}=264.5[/tex]
b.[tex]\frac{80*4+3/4}{100}*50=\frac{323/4}{100}*50=\frac{323/4*50}{100}=\frac{4037.5}{100}=40.375[/tex]
c.[tex]\frac{500}{100}*0.02=5*0.02=0.1[/tex]
d.[tex]\frac{1/10}{100}*800=1/10*1/100 *800=\frac{1}{1000}*800=\frac{800}{1000}=0.8[/tex]
e.[tex]\frac{63*5+4/5}{100}*12000=\frac{319/5}{100}=12000=319/5*1/100*12000=319/500*12000=\frac{319*12000}{500}= \frac{3828000}{500}=7656[/tex]
f.[tex]\frac{0.05}{100}*1000000=\frac{0.05*1000000}{100}= \frac{50000}{100}=500[/tex]
Given right triangle ABC what is the value of tanA AB=26 BC=24 AC= 10
Answer:
tanA = 12/5
Step-by-step explanation:
find the area of the entire surface of the prism.
5 4 3
Answer:
A=94
Step-by-step explanation:
Length: 5
Width: 4
Height: 3
Shape: Rectangle prism
Solved for surface area
Formula: A=2(wl+hl+hw)
Formula: L*W*H
Answer: A=94
Hope this helps.
A circle with circumference 20 has an arc with a 72º central angle.
What is the length of the arc?
Answer:
l = x · c / 360
l = 72 · 20 / 360
l = 1440 / 360
l = 4
Step-by-step explanation:
1. write down the arc length formula.
2. replace x and c by their values
3. multiply and then divide to get l
If corresponding angles are on parallel, then their measure is the same ____. always, sometimes, or never
Answer:
Step-by-step explanation:
Sometimes hope that helps you and hope you pass : >
Answer:
Always
Step-by-step explanation:
- Parallel lines can be defined as two lines in the same plane that are at equal distance from each other and never meet.
- Parallel lines are congruent and so their measure will ALWAYS be the same
Brainliest question please help me now plz I need it
Answer:
As shown in picture:
A(-4, 1)
Z(-2, 3)
P(3, -4)
The length of AZ is calculated by:
L = sqrt((-4 - -2)^2 + (1 - 3)^2) = 2.83
The length of AP is calculated by:
L = sqrt((3 - -4)^2 + (-4 - 1)^2) = 8.60
THe length of ZP is calculated by:
L = sqrt((3 - -2)^2 + (-4 - 3)^2) = 8.60
=>Perimeter of triangle AZP is calculated by:
P = AZ + AP + ZP = 2.83 + 8.60 + 8.60 = 20.3
Hope this helps!
:)
Solve the system of equations
Answer:
x=1, y=2
Step-by-step explanation:
2x+y =4
y = 2x
Substitute the second equation into the first
2x+ (2x) = 4
Combine like terms
4x = 4
4x/4 = 4/4
x = 1
Now find y
y = 2x
y = 2(1)
y = 2
Find x.
1.5
2
[tex]\sqrt{3}[/tex]
3[tex]\sqrt{3}[/tex]
Answer:
1.5
Step-by-step explanation:
Answer:
in triangle
tan60°=3/x
√3=3/x
x=(√3×√3)/√3=√3
Someone help me!!!
toilet roll comes in packs of 4 and 9
The 4 pack is priced at £2.04
The 9 pack is priced at £4.68
By calculating the price per roll, determine which pack is better pack.
Show your working.
Answer:
4 pack priced at £2.04 is the better pack
Step-by-step explanation:
2.04/4=£0.51 per roll
4.68/9=£0.52 per roll
I think the 9pack is better
I hope it was helpful to you
Un bloque de cemento de 10 Kg de masa cuelga de tres alambres, como se muestra en la figura. Si una bala de 1,2 kg viaja con una velocidad de 3 m/s horizontalmente y choca con el bloque quedando incrustada sobre él, calcule la velocidad final después del choque
Step-by-step explanation:
Could you please type your question in English
Please!! I'm having a hard time understanding your question and I want to help
what is the area of a general quadrilateral
Answer:
For a general quadrilateral; in addition s=½(a+b+c+d). Right: a parallelogram. Often, however, it is easiest to compute the area by dividing the quadrilateral into triangles. One can also divide into triangles to compute one side given the other sides and angles, etc.
Step-by-step explanation:
Answer:
Area of a general Quadrilateral =12 × diagonal × (Sum of height of two triangle)
Please help with this question!!!!
Answer:
work is shown and pictured
Enter the next three terms in the geometric sequence.
−3,104, −1,552, −776, −388, ...
Answer:
-194, -97, -48.5
Step-by-step explanation:
-3,104 ÷2 is -1,552. I divided each number by 2.
A company is designing a new cylindrical water bottle. The volume of the bottle will be 121 cmcubed. The height of the water bottle is 7.6 cm. What is the radius of the water bottle? Use 3.14 for pi.
Answer:
The radius of the water bottle is 2.25 cm
Step-by-step explanation:
The water bottle is said to be cylindrical, so its volume can be expressed as the volume of a cylinder.
Volume of a cylinder V = πr^2 h
Where;
h = height
r = radius
Making the radius the subject of formula;
r^2 = V/πh
r = √(V/πh)
Given:
Volume V = 121 cm^3
height h = 7.6 cm
π = 3.14
Substituting the given values;
r = √(121/(3.14×7.6))
r = 2.25 cm
The radius of the water bottle is 2.25 cm
could you guys help me find the area of these please? i don't understand how to do this
Answer:
for 9, the answer is 246.49
Step-by-step explanation:
This is area of a circle correct?
The formula is PI x radius squared.
3.14 x the radius, which is 5, squared
I am re-editing this
so sorry the answer is actually 78.54
The reason why it is 78.54 is that you need to square the radius before multiplying with PI.
Step-by-step explanation:
okay, so the area of a circle can be found with the formula πr^2
this means you have to square the radius of the circle and multiply it by pi to find your answer.
9) r=5
πr^2
π(5)^2 = 25π or about 78.54cm^2
this is how you get the area of all other circles!
10) r=9
πr^2
π(9)^2 = 81π or about 254.47mi^2
11) r=8
πr^2
π(8)^2 = 64π or about 201.06mi^2
12) r=4.5
πr^2
π(4.5)^2 = 20.25π or about 63.62in^2
13) r=6.6
πr^2
π(6.6)^2 = 43.56π or about 136.85yd^2
14) r=2
πr^2
π(2)^2 = 4π or about 12.56cm^2
15) r=9
πr^2
π(9)^2 = 81π or about 254.47in^2
16) r=7
πr^2
π(7)^2 = 49π or about 153.94km^2
Solve the equation and express each solution in a+bi form . X^4-44x^2-45=0
Answer:
The correct answer is option
[tex]d.\ x=-i, i, 3 \sqrt{5}\ or\ -3 \sqrt{5}[/tex]
Step-by-step explanation:
The given equation has a degree 4 (Highest power of [tex]x[/tex]):
[tex]x^4-44x^2-45=0[/tex] is the given equation which can be written as:
[tex](x^2)^2-44x^2-45=0 ...... (1)[/tex]
Let [tex]t=x^{2}[/tex] and putting it in equation (1):
[tex]t^2-44t-45=0 \\[/tex]
Solving the above quadratic equation in variable [tex]t[/tex]:
[tex]\Rightarrow t^2-45t+t-45=0 \\\Rightarrow t(t-45)+1(t-45)=0\\\Rightarrow (t+1)(t-45)=0\\\Rightarrow t =-1\ or\ 45[/tex]
We know that [tex]t=x^{2}[/tex]
So, [tex]x^{2} =-1\ or\ x^{2}= 45[/tex]
1. Solving [tex]x^{2} =-1[/tex]
[tex]\Rightarrow x = +\sqrt{-1}\ or\ -\sqrt{-1}\\\Rightarrow x = i\ or\ -i[/tex]
2. Solving [tex]x^{2} =45[/tex]
[tex]\Rightarrow x = +\sqrt{45}\ or\ -\sqrt{45}\\\Rightarrow x = 3\sqrt{5}\ or\ -3\sqrt{5}[/tex]
Hence, correct answer is:
[tex]x=-i, i, 3 \sqrt{5}\ or\ -3 \sqrt{5}[/tex]
Answer:
D
Step-by-step explanation:
Edgenuity
Alex has a pet snake that eats 1 mouse every week. How many mice will the snake eat if Alex has the snake for 4 years?
Answer:
33
Step-by-step explanation:
Answer:
208
Step-by-step explanation:
one snake a week
52 weeks in a year
4 years
52*4=208
What is the slope-intercept equation of the line below?
Answer:
y = -x-2
Step-by-step explanation:
We are given a slope of -1 and the y intercept of -2
The slope intercept form of the equation for a line is
y = mx+b
where m is the slope and b is the y intercept
y = -1x +-2
y = -x-2
Answer:
y=-x -2
Step-by-step explanation:
Slope-intercept form is
y=mx+b
where m is the slope and b is the y-intercept
We know that the slope is -1. We also know that the y-intercept is (0, -2). For this form, we can disregard the 0, and say the y intercept is just -2.
So, m is -1, and b is -2. Substitute the values into the equation.
y=mx+b
y=-1x+-2
Simplify
y= -x -2
This is the equation of the line in slope-intercept form.
Please help!.im trying to get my missing work done quickly.
Answer:
Probably Dog.
Step-by-step explanation:
Since there is more dogs than anything else, it would probably be a dog.
Answer:
Total pets available
20 pets
Cat 0.2 --> 20%
Dog 0. 35 --> 35%
Snake 0.05 --> 5%
Rabbit 0.15 --> 15%
Bird 0.25--> 25%
Step-by-step explanation:
Total pets are:
cats + dogs + snakes + rabbits + birds
4 + 7 + 1 + 3 + 5 = 20 pets available for adoption
To find probability dived the number available of each pet by the total number of pets available.
Cat
4/20 = 0.2 --> 20%
Dog
7/20 = 0. 35 --> 35%
Snake
1/20 = 0.05 --> 5%
Rabbit
3/5 = 0.15 --> 15%
Bird
5/20 =0.25--> 25%
Find the area of this shape
Answer:
36cm. sq.
Step-by-step explanation:
Can I get the ans for this qs of maths?
Answer:
2880 m
Step-by-step explanation:
find the area under the graph. i have split it into 3 areas A, B and C
A (trapezium) = 1/2 x (150 + 160) x 15 = 2325
B (trapezium) = 1/2 x (15 + 6 ) x (160 - 110) = 525
C (triangle) = 1/2 x 10 x 6 = 30
total = 2325 + 525 + 30 = 2880
solve similar triangles
Answer:
16
Step-by-step explanation: