Answer:
C. 795.45 in^2
Step-by-step explanation:
The formula for the surface area of a cylinder is ...
SA = 2πr^2 +2πrh = 2πr(r +h)
For r=6 and h=15.1, the surface area is ...
SA = 2π(6)(6 +15.1) = π(12)(21.1) = 253.2π
SA ≈ 795.45 . . . . square inches
om is 5 years younger than his brother. If the sum of their ages is 43 years now, find their age.
Answer:
Brother's age =24
Om's age =19
Step-by-step explanation:
Let bro's age be x
Let om's age be x-5
x+x-5=43
2 x -5=43
2 x = 43+5
2 x = 48
x = 24
If f(x) = 5 + 4x^2, then f(3) =
. Give only the final answer
[tex]\text{Solve by plugging in 3 to x:}\\\\f(x)=5+4(3)^2\\\\f(x)=5+4(9)\\\\f(x)=5+36\\\\f(x)=41\\\\\boxed{f(3)=41}[/tex]
Answer:
hope this helps
Step-by-step explanation:
f(x) = 5 + 4x^2, then f(3)
5 + 4(3)^2
5+4(9)
5+36
41
The circumference of a circle is 20 cm. What is the approximate radius of the circle?
Answer:
[tex]3.18cm[/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
Select the correct answer.
If `u=(1+isqrt(3))' and `v=(1+2isqrt(3)) , what is uv?
A.
*7+3isqrt(3)
B.
-5+3isqrt(3)
C.
5+2isqrt(3)
D.
*7+2isqrt(3)
Answer:
B
Step-by-step explanation:
(1+isqrt(3))(1+2isqrt(3))=1+2i√3+i√3+i√3*2i√3=3i√3-5=-5+3i√3
Solve for m.
774 = m − 15
Answer:
[tex]m = 789[/tex]
Step-by-step explanation:
[tex]774 = m - 15 \\ 774 + 15 = m \\ 789 = m[/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
So the right answer is 789
look at the attached picture
Hope it will help you
Good luck on your assignment
How do I solve the problem?
You have to determine how many weeks it takes them to make that much, then you add the total. you can determine how many weeks it takes by multiplying
Answer: So you have to first find out how many weeks Alicia needs to work and write it like this (an example)
3x?=9 something like that hope i helped
Step-by-step explanation:
Based on the information marked in the diagram mnp and qrs must be congruent
Answer: True
Step-by-step explanation:
In triangles MNP and QRS:
NP=RS (hypotenuses);
∠P=∠S (acute angles).
Then, triangles MNP and PRS are congruent by HA theorem.
which makes the answer true
Answer:
True
Step-by-step explanation:
I just took the test, A-p-e-x
my entry test is coming soon i prepard my exams maths english
Answer:
good luck !!
Step-by-step explanation:
Answer:
Good luck
Step-by-step explanation:
What is 4+5 devices by two
The equation can be written as:
4 + 5 / 2
Remember to follow PEMDAS.
4 + 5 / 2
4 + 2.5
6.5
Best of Luck!
Answer:
If you mean whats 4+5/2 the answer is 6.5 because PEMDAS says to Divide first . So 4+(5/2). 5/2 is 2.5. so 4+(2.5) which equals 6.5
Data were collected on the age (in years) and price (in thousands of dollars) of a random sample of 25 used Cars. The computer output from a regression analysis is provided.
Model Summary
R-sq R-sq(adj)
89.9% 87.4%
Coefficients
Term Coef SE Coef T-Value P-Value
Constant 15.29 0.58 26.18 0.000
Age -1.71 0.13 -13.55 0.000
What is the value of the intercept? Enter the value exactly how it is displayed in the output.
Answer:
vaulue is 4
Step-by-step explanation:
In the equation -2 - 6b = 32, the negative coefficient is ___________________.
Answer:-2
Step-by-step explanation:
It’s not -6b because that is showing that it’s getting subtracted
Hope I helped
The diameter of this beach ball is 12 inches.
A beach ball.
Apply the formula for the volume of a sphere to determine how much air it can hold. Use the calculator to multiply by π. Round to the nearest hundredth.
Sphere V = 4
3
πr3
How much air can the beach ball hold?
Answer:
288π or 904.78
Step-by-step explanation:
We know that the diameter of this beach ball is 12 inches and we want to determine how much air it can hold using the formula for the volume of a sphere which is [tex]\frac{4}{3}[/tex] × π × r³ where 'r' is the radius. In the question we are given the diameter not the radius but we can half the diameter to find the radius so 12 ÷ 2 = 6. The radius of the beach ball is 6 inches so let's work out how much air it can hold.
Volume = [tex]\frac{4}{3}[/tex] × π × r³
→ Let's substitute in the values
Volume = [tex]\frac{4}{3}[/tex] × π × 6³
→ Simplify
Volume = [tex]\frac{4}{3}[/tex] × π × 216
→ Simplify further
Volume = 288π or 904.78
The amount of air can the sphere shape beach ball hold is 208π or 904.78 inches.
What is sphere?
The "set of all points in 3 dimensional space is lying the same distance from the given points or center" is called sphere.
According to the question,
Diameter of sphere shape beach ball is 12inches
Radius of sphere shape beach ball is 12/2 = 6inches
Volume of sphere = [tex]\frac{4}{3}[/tex] × π × r³
= [tex]\frac{4}{3}[/tex] × [tex]\frac{22}{7}[/tex] × (6)³
= 904.78inches
Hence, the amount of air can the sphere shape beach ball hold is 208π or 904.78 inches.
Learn more about sphere here
https://brainly.com/question/20377790
#SPJ2
Isi makes sandwiches to sell at a football game.
The graph shows her costs and income from making and selling the sandwiches.
Select the three statements that are true, based on the graph.
Answer: 1)The more sandwiches you sell the more you income goes up. 2)If you sell 24 sandwiches the cost will be the same as your income. 3) If you sell 0 sandwiches you will get zero income.
Step-by-step explanation:
There are 7 x 104 snakes at the zoo but 7 x 100 are accounted for. How many snakes are missing.
Answer:
28 snakes are missing
Step-by-step explanation:
7 times 104 = 728
7 times 100 = 700
728 minus 700 = 28 snakes are missing
Identify the opposite of -4
Answer:
It is 4
Step-by-step explanation:
A car travels 10km southeast and then 15 km in a direction 60 degrees north of east. What is the magnitude of the car's resultant vector?
Answer: 15.85km
Step-by-step explanation:
The car starts at the point (0,0)
Let's define east as the positive x-axis and north as the positive y-axis.
first, the car travels 10km southeast, so the angle is -45° from the east.
Then the new position of the car is:
(10km*cos(-45°), 10km*sin(-45°)) = (7.07km, -7.07km)
Now, from this point the car travels 15km with an angle of 60° (counting from the east)
So the new position is:
(7.07km + 15km*cos(60°), -7.07km + 15km*sin(60°)) = (14.57km , 5.91km)
The magnitude of a vector (x, y) is √(x^2 + y^2)
So the magnitude of the vector (14.57km , 5.91km) is:
√((14.57km)^2 + (5.91km)^2) = 15.85km
The magnitude of the car's resultant vector is 15.72.
Given that,
A car travels 10km southeast,
And then 15 km in a direction 60 degrees north of east.
We have to find,
The magnitude of the car's resultant vector.
According to the question,
To resultant direction calculate by using the sum of vectors following all the steps given below.
A car travels 10 km southeast,
And then 15 km in a direction 60 degrees north of east.
The first vector has module is 10 and angle is 315°,
In the south direction, the angle is 270° and east is 360°,
So the angle in southeast,
[tex]\rm = \dfrac{270+360}{2}\\\\= \dfrac{630}{2}\\\\= 315 \ degree[/tex]
The second vector has module 15 and angle = 40°
Decompose both vectors in their horizontal and vertical component:
The horizontal component of the first vector is,
[tex]\rm = 10 \times cos(315) = 10 \times 0.70= 7.07[/tex]
The vertical component of the first vector is,
[tex]= \rm 10 \times sin(315) = -7.07[/tex]
The horizontal component of the second vector is,
[tex]\rm = 15 \times cos(60) = 15 \times 0.5= 7.5[/tex]
The vertical component of the second vector is,
[tex]\rm = 15 \times sin(40) = 15 \times 0.86= 12.99[/tex]
The sum of the horizontal component of the resultant vector is,
[tex]= 7.07+7.5=14.57[/tex]
And the sum of the vertical component of the resultant vector is,
[tex]= -7.07+12.99=5.91[/tex]
The magnitude of the vector (14.57km, 5.91km) is:
Therefore,
The magnitude of the car's resultant vector is,
[tex]\rm Resulatant = \sqrt{(14.57)^2+ (5.91)^2}\\\\ Resulatant = \sqrt{212.28+ 34.92} \\\ \\ Resulatant = \sqrt{247.20}\\\\ Resulatant = 15.72[/tex]
Hence, The required magnitude of the car's resultant vector is 15.72.
For more details refer to the link given below.
https://brainly.com/question/16541081
Which system of equations has one solution?
Answer:
A is correct, when two lines have 1 intersection (1 solution).
Step-by-step explanation:
B Two lines are parallel => No intersection (no solution).
C Two lines are coincident => Many intersection (many solutions).
Hope this helps!
:)
Step-by-step explanation:
As these two lines are not parallel so going to intersect at one point so having one solution
magine that you are conducting a one-variable chi-square test to investigate the hypothesis that there are equal numbers of cat lovers and dog lovers in the office at work. Having conducted a survey, you found 150 preferred dogs and 120 preferred cats. What would the expected frequencies be in each cell? 135 150 and 120 270 More information is needed to calculate the expected frequencies.
Answer:
a. 135 is correct
Step-by-step explanation:
We have the following information:
dogs lover: 150
cats lover: 120
as the null hypothesis:
H, there are equal number of dogs lover and cats lover, so the expected frequency in each cell will be equal and that is:
f = (150 + 120) / 2
f = 270/2 = 135
so option a. 135 is correct
p + nx=rx-e (solve for x)
Answer:
(p+e)/(r-n) = x
Step-by-step explanation:
p + nx=rx-e
Add e to each side
p +e+ nx=rx-e+e
p +e+ nx=rx
Subtract nx from each side
p +e+ nx - nx=rx-nx
p+e = rx -nx
Factor out x
p+e = x(r-n)
Divide each side by (r-n)
(p+e)/(r-n) = x(r-n)/(r-n)
(p+e)/(r-n) = x
Which of the following shows the division problem below in synthetic division form? 4x^2-13x+8 / x+5
Answer:
Dividing 4x^2 - 13x + 8 by x + 5 or x - (-5), in synthetic division form:
-5) 4 | -13 | 8
↓ 4 x (-5) (-5) x (-33)
4 -33 173
=> Quotient is 4x - 33 and remainder is 173
=> (4x^2 - 13x + 8)/(x + 5) = (4x - 33) + 173/(x + 5)
Hope this helps!
:)
Answer:
-5/4 -13 8
Step-by-step explanation:
I need Help..please??
Answer:
56
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
An insurance policy charges a regular risk premium, , at Years 0,1,2,3,…,9 from today. The policy pays a claim of 2 (i.e. × ) in 15 Years from today. Calculate the value of (to 2 decimal places), assuming an interest rate of 2% per annum.
Answer:
x = 12.29
Step-by-step explanation:
present value of the claim = x² / (1 + 2%)¹⁵ = 0.743x²
present value of the 10 premiums:
x + x/1.02 + x/1.02² + x/1.02³ + x/1.02⁴ + x/1.02⁵ + x/1.02⁶ + x/1.02⁷ + x/1.02⁸ + x/1.02⁹ = x + 0.9504x + 0.9612x + 0.9423x + 0.9238x + 0.9057x + 0.888x + 0.8706x + 0.8535x + 0.8368x = 9.1323x
0.743x² = 9.1323x
x² / x = 9.1323 / 0.743
x = 12.29
Answer
x = 12.29
Step-by-step explanation:
Given that the policy claims x² in 15 years, at 2% = 0.02, the present value of the claim is given as:
x²/(1 + 0.02)^15
= x²(1/1.02)^15
= 0.743x²
The present value of the 10 premiums:
x + x/1.02 + x/1.02² + x/1.02^3 + x/1.02^4 + x/1.02^5 + x/1.02^6 + x/1.02^7 + x/1.02^8 + x/1.02^9
= x + 0.9504x + 0.9612x + 0.9423x + 0.9238x + 0.9057x + 0.888x + 0.8706x + 0.8535x + 0.8368x
= 9.1323x
Now,
0.743x² = 9.1323x
x²/x = 9.1323/0.743
x = 12.29
This is what we are looking for.
can someone help me answer the pic above
Answer:
The cop = 40 and the baseball cap = 3 and the baseball bat = 21
Step-by-step explanation:
So 40 - 21 + 3(2) = 25
Answer:
25
Step-by-step explanation:
look at the whole thing first. you see that the field = player so first you do 120/3. you get 40. then for teh second you have two "40's" and an unknown. so you do 101-80 because 40+40=80 and get 21. for the fourth you have 21/?=7 . we can do 21/7=3 to find this. so the helmet is 3. for the final we have 40-21+6 and that equals 25. thank you ;)
When playing roulette at the Venetian casino in Las Vegas, a gambler is trying to decide whether to bet $5 on the number 27 or to bet $5 that the outcome is any one of these five possibilities: 0, 00, 1, 2, 3. From Example 6, we know that the expected value of the $5 bet for a single number is -26. For the $5 bet that the outcome is 0, 00, 1, 2, or 3, there is a probability of 5>38 of making a net profit of $30 and a 33>38 probability of losing $5.
a. Find the expected value for the $5 bet that the outcome is 00, 0, or 1.
b. Which bet is better: a $5 bet on the number 25 or a $5 bet hat the outcome is any one of the numbers 00, 0, or 1? Why?
Answer:
Step-by-step explanation:
Given that:
To bet $5 that the outcome is any one of these five possibilities: 0, 00, 1, 2, 3.
Let Y represent the Amount of net profit
Then, Y= {-5, 30}
The probability distribution of Y is:
Y -5 30
P(Y=y) [tex]\dfrac{33}{38}[/tex] [tex]\dfrac{5}{38}[/tex]
a) The expected value of X is given by:
[tex]E[Y] =\sum y P(Y=y)= 30*\dfrac{5}{38}-5*\dfrac{33}{38}[/tex]
[tex]=-0.39[/tex]
[tex]= -39 \ cents[/tex]
b)
On a bet of $5 on the number 25 we are expected to loose 24 cents.
While on a $5 bet that the outcome is any one of the numbers 0,00, or 1 we are expected to loose 39 cents.
Hence, $5 bet on the number 27 is better. Because the expected loss is less in this bet
( NEED HELP ASAP)
If parallelogram ABCD was reflected over the y-axis, reflected over the x-axis, and rotated 180°, where would point A' lie?
[Hint: Place your coordinates in the blank with no parentheses and a space after the comma in the form: x, y]
Parallelogram ABCD is shown.
A is at negative 4, 1.
B is at negative 3, 2.
C is at 0, 2.
D is at negative 1, 1.
Answer:
(Fill in the blank)
Answer:
A' is at (-4, 1)
Step-by-step explanation:
Reflection over both axes is equivalent to rotation by 180°. Then rotation by 180° returns the point to its original location. The original location of point A is (-4, 1), so the location of its image is A'(-4, 1).
Rearrange the equation so m is the independent variable.
-2m-5n=7m-3n
n = __
Answer:n=-9/2m
Step-by-step explanation:
Step 1: Add 3n to both sides.
-2m-5n+3n=7m-3n+3n
-2m-2n=7m
Step 2: Add 2m to both sides.
-2m-2n+2m=7m+2m
-2n=9m
Step 3: Divide both sides by -2.
-2m/-2=9m/-2
n=-9/2
Hope I helped
Answer:
n= -9m/2
Step-by-step explanation:
-2m-7m-5n=7m-7m-3n
-9m-5n+5n= -3n+5n
-9m=2n
n= -9m/2
if the product of 11 positive integers is odd, how many of these integers must be odd
ASAP! GIVING BRAINLIEST! Please read the question THEN answer correctly! No guessing. Show your work or give an explaination.
Answer:
X is 108, infinite
Step-by-step explanation:
I need help please and thank you
Answer:
2.2×10⁹
Step-by-step explanation:
The distributive property is useful here. Recognize that 10⁹ is a common factor:
(5.4×10⁹) - (3.2×10⁹) = (5.4 -3.2)×10⁹ = 2.2×10⁹
Answer: 2.2×10⁹
Step-by-step explanation:
The volume of a sphere is 904.32 cubic millimeters. What is its radius?
Hello!
Answer:[tex]\boxed{ \bf The~radius~of~the~sphere~is~6~mm.}[/tex]
Explanation:We know that:
V = [tex]\frac{4}{3}[/tex]πr³
904.32 = [tex]\frac{4}{3}[/tex]πr³
To figure out the radius, we have to undo the above. We can undo the fraction by multiplying by it's reciprocal:
[tex]\frac{3}{4}[/tex] × [tex]\frac{904.32}{1}[/tex] = [tex]\frac{4}{3}[/tex]πr³ × [tex]\frac{3}{4}[/tex]
678.24 = πr³
Next, we're going to divide both sides by pi:
[tex]\frac{678.24}{\pi } = \frac{\pi r^{2} }{\pi }[/tex]
215.90 = r³
To undo the, we must find the cube root of 215.90.
r = 6
Answer:
[tex]radius = 6mm[/tex]
Step-by-step explanation:
Volume of a sphere.
Use this formula
[tex]v = \frac{4}{3} \pi {r}^{3} [/tex]
Now solve for r
[tex]r = (3 \frac{v}{4\pi} ) ^{ \frac{1}{3} } \\ = (3 \times \frac{904.32}{4 \times \pi} ) ^{ \frac{1}{3} } \\ ≈
5.99899mm
[/tex]