solve similar triangles
Answer:
16
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.
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
A six-sided number cube is rolled two times. What is the probability of rolling a 4 both times?
Answer: 1/36
Explanation: In this problem, we're given that a number cube is rolled twice and we're asked to find the probability of rolling a 4 and a 4.
It's important to understand that the two rolls of the number cube are independent events because the results of one role does not affect the results of the other roll.
To find the probability of two independent events, we first find the probability of each event, then we multiply the probabilities.
So let's first find the probability of rolling
a 4 with our first role of the number cube.
We can find the probability of an event using the following ratio:
number of favorable outcomes over total number of outcomes
Since there's only one way to roll a 4 and there are six possible outcomes 1, 2, 3, 4, 5, and 6, the probability of rolling a 4 is 1/6.
Next, we find the probability of rolling a 4 with our second roll of the number cube, which would also be 1/6.
Now, to find the probability of rolling a 4 and a 4,
we simply multiply the probabilities.
Now multiply 1/6 x 1/6 by multiplying across the top and bottom.
This gives us 1/36.
So the probability or likelihood of rolling a 4 two times in a row is 1/36.
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
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.
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
Which equation can be used to calculate the surface area of the triangular prism net show below?
The net of a rectangular prism. The rectangular sides are 10 centimeters by 13 centimeters, 10 centimeters by 12 centimeters, and 10 centimeters by 5 centimeters. The triangular sides have a base of 5 centimeters and height of 12 centimeters.
[Not drawn to scale]
a
Surface Area = (one-half) (5) (12) + (5) (10) + (12) (10) + (13) (10)
b
Surface Area = (one-half) (5) (13) + (one-half) (5) (13) + (13) (10) + (12) (10)
c
Surface Area = (2) (5) (13) + (5) (10) + (13) (10) + (12) (10)
d
Surface Area = (one-half) (5) (12) + (one-half) (5) (12) + (5) (10) + (12) (10) + (13) (10)
What is the area of the composite figure?
A trapezoid has base lengths of 12 centimeters and 13 centimeters. The other sides have lengths of 5 centimeters and 10 centimeters. A rectangle with side lengths of 2 centimeters and 5 centimeters is connected to the side with length 10 centimeters.
a
70 square centimeters
b
100 square centimeters
c
105 square centimeters
d
130 square centimeters
Answer:
the answer is a
Step-by-step explanation:
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 with this question!!!!
Answer:
work is shown and pictured
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]
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
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]
Multiply.
The carton of milk in the refrigerator has 3/4 of a quart left. John drinks 1/2 of this milk. How much does he drink?
Answer:
1 and a half quarts
Step-by-step explanation:
Answer: He drank 3/8 quart.
Step-by-step explanation:
3/4 * 1/2 = 3/8
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
The mean of a normally distributed dataset is 12, and the standard deviation is 2.
Step-by-step explanation:
sorry what is the question?
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
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
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
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
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%
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.
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!
:)
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 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
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
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
Given right triangle ABC what is the value of tanA AB=26 BC=24 AC= 10
Answer:
tanA = 12/5
Step-by-step explanation:
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