Answer:
1960 π
Step-by-step explanation:
If R is the outer radius and r the inner radius of a hollow cylinder of height h, then volume of cylinder = π (R² - r²)h
Here R = 18/2 = 9
and r= 10/2 =5
Volume = π (9² - 5²) . 35 = π x 56 x 35 = 1960 π
Using the table below, what is the probability of selecting a girl or someone who likes Michigan?
Ohio State
Michigan
NC State
Total
Boys
56
14
20
90
Girls
50
22
38
110
Total
106
36
58
200
Using the table of values, the probability of selecting a girl that likes Michigan is 0.11
How to determine the probability?The table is given as:
Ohio State Michigan NC State Total
Boys 56 14 20 90
Girls 50 22 38 110
Total 106 36 58 200
In the above table, 22 girls out of the total sample size of 200 like Michigan.
This means that the required probability is:
P = 22/200
Evaluate the quotient
P = 0.11
Hence, the probability of selecting a girl that likes Michigan is 0.11
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Help -x/3 > 5
A. X<15
B. X > -15
C. X < -15
D. X > 15
Answer:
Steps
-x/3 >5
Multiply both sides by 3
3(-x/3)>5.3
Simplify
-X> 15
Multiply both sides by - 1 (reverse the inequality)
(-x)(-1)<15(-1)
Simplify
X< -15
so C is the answer
How many solutions does this equation has: 3x-5=-3
Answer:
One solution
Step-by-step explanation:
The only solution is x = 2/3
help me please really help
Answer:
60
Step-by-step explanation:
10 x sqrt64 - 5 x 4
10 x 8 - 5 x 4
80 - 20
60
How do you solve for x?
..........................
what equation represents the graph
Answer:
y = (x + 1)(x - 2)(x -3)
Step-by-step explanation:
Looking at the graph we see our zeros which is on the x-axis is -1 , 2, 3.
Thus create an equation.
y = (x + 1)(x - 2)(x -3)
Polygon with exactly one line of symmetry label the line of symmetry
Answer:
Kite
Step-by-step explanation:
Kite. A kite has one line of symmetry
Using the law of cosines, write an algebraic proof to show that the angles in an equilateral triangle must equal 60°. Use "∧" to indicate exponents. For example, type a2 as a∧2. (Hint: Let s be a length of each side and x be the angle measure; then use these variables in the law of cosines.)
The algebraic proof shows that the angles in an equilateral triangle must equal 60° each
What is trigonometry?Trigonometry is the branch of mathematics which set up a relationship between the sides and angle of the right-angle triangles.
From the question, we are to use the law of cosines to write an algebraic proof that shows that the angles in an equilateral triangle must equal 60°.
Given any triangle ABC, the measures of angles A, B, and C by the law of cosines are
cos A = (b² + c² - a²)/2bc
cos B= (a² + c²- b²)/2ac
cos C = (a²+ b²- c²)/2ab
Now, given that the triangle is equilateral, with each of the side lengths equal to s
That is, a = b = c = s
Then, we can write that
cos A = (s² + s² - s²)/(2s×s)
cos A = (s² )/(2s²)
cos A = 1/2
cos A = 0.5
∴ A = cos⁻¹(0.5)
A = 60°
Also
cos B = (s² + s² - s²)/(2s×s)
cos B = (s²)/(2s²)
cos B = 1/2
cos B = 0.5
∴ B = cos⁻¹(0.5)
B = 60°
and
cos C = (s² + s² - s²)/(2s×s)
cos C = (s² )/(2s²)
cos C = 1/2
cos C = 0.5
∴ C = cos⁻¹(0.5)
C = 60°
Thus,
A = 60°, B = 60° and C = 60°
Hence, the algebraic proof above shows that the angles in an equilateral triangle must equal 60° each.
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Aina, who works in an accounting firm, earns a monthly salary of 35,000 PHP per month and also receives 3,500 PHP for a monthly allowance. Her monthly contributions are as follows: 1,466 PHP for income tax, 300 PHP for PhilHealth, 800 PHP for SSS, and 100 PHP for Pag-IBIG. Find her NET INCOME for this month.
Using the given information, Aina's net income is for the month is 35,834 PHP
Calculating Net incomeFrom the question, we are to determine the net Aina's net income
Aina's net income is the value of her total income minus all other expenses
From the given information,
Aina's monthly salary is 35,000 PHP per month and also receives 3,500 PHP for a monthly allowance
∴ Aina's total income = 35,000 PHP + 3,500 PHP
Aina's total income = 38,500 PHP
Sum of her other expenses = 1,466 PHP + 300 PHP + 800 PHP + 100 PHP
Sum of her other expenses = 2,666 PHP
∴ Aina's net income = 38,500 PHP - 2,666 PHP
Aina's net income = 35,834 PHP
Hence, Aina's net income is for the month is 35,834 PHP.
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Using basic geometry, solve sin 105°
Answer:
See below
Step-by-step explanation:
sin ( 60 + 45) = sin60 cos 45 + cos45 sin60
= sqrt3 / 2 * sqrt2/2 + sqrt2/2 * 1/ 2
sqrt6/4 + sqrt 2/ 4
(sqrt6 + sqrt 2) / 4
1. Use the following table to answer the questions: (Note: f(x) is a continuous function)
[x] -2,3,4,8
[f(x)] 7, -2, 3, 6
[f'(x)]-4.5,-0.25,1,8
a. If g(x)=f(x), is g(x) a function?
b. Find f(g(4)).
c. Write the equation of the line tangent to g at x = -2.
PLEASE SEE PHOTO! Can you explain why my answers were wrong and can you find the correct answers to all of them?
1. a. No, g(x) is not a function because f(x) is not invertible. This is because it's not a monotonic function, which we gather from the table. On the interval [-2, 3], f(x) decreases from 7 to -2, but on the following interval [3, 4], f(x) increases to 3 and becomes positive once more. At best, f(x) is locally invertible.
1. b. This is impossible to determine... We can't know g(4) without knowing for which x we have f(x) = 4, but that's not included in the table.
1. c. The slope of the tangent line to f(x) at x = -2 is f'(-2) = -4.5. Then the equation of the tangent to f(x) at x = -2 - which means it passes through the point (-2, f(-2)) = (-2, 7) - is
y - 7 = -4.5 (x - (-2)) ⇒ y = -4.5x + 16
2. Given f(x) = arctan(3x) - ln(1 + 9x²), compute the derivative:
f'(x) = 3/(1 + (3x)²) - 18x/(1 + 9x²)
f'(x) = (3 - 18x)/(1 + 9x²)
Find the critical points of f(x), where f'(x) = 0 or doesn't exist. Only the first case can happen since the denominator is never zero. So
3 - 18x = 0 ⇒ x = 1/6
is the only critical point.
Also compute the second derivative, then check its sign at the critical point:
f''(x) = (-18 - 54x + 162x²) / (1 + 9x²)²
f''(1/6) = -72/5 < 0
The negative sign indicates that x = 1/6 is the site of a local maximum of
f(1/6) = arctan(1/2) - ln(5/4) ≈ 0.241
Also check the values of f(x) at the endpoints of the interval [0, 1]:
f(0) = 0
f(1) = arctan(3) - ln(10) ≈ -1.054
So, the maximum value of f(x) on [0, 1] is f(1/6) ≈ 0.241.
Tell whether the angles are adjacent or vertical. Then find the value of x.
Answer:
The angles are vertical, and the value of x is 128 degrees
Step-by-step explanation:
You can tell vertical angles apart from adjacent by looking at their position. Adjacent angles are side by side, right next to each other. Vertical angles are directly across from each other, with their points touching.
Since the angle measures of vertical angles are equal, the value of x is 128
i hope this helps
N
The accurate scale drawing shows
the positions of port P and a lighthouse L.
►
c)
N
Lindsey sails her boat from port P
on a bearing of 050°
She sails for 12 hours at an average
speed of 5 km/h to a port Q.
Ito-
L
p*
Scale: 1 cm represents 3 km.
a) Indicate the position of port Q on the drawing (use the x tool).
(2)
b) Find the distance, in km, of port Q from lighthouse L.
(1)
c) Find the bearing of port Q from lighthouse L.
)
(2)
Total marks: 5
Feedback
The Indication of the position of port Q on the drawing is shown by using the example of the image attached.
What is the distance about?To Indicate the position of port Q on the drawing (use the x tool).
12 * 5 = 60km
Note that S= VT
Because 1cm represent 3km
1/3 =x/60
3x = 60
x= 60/3
x= 20
So therefore, 60km needs 20cm.
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Is it SSS, SAS, ASA, AAS, or HL?
Triangle ABC is congruent to triangle DEF based on the SAS congruence theorem.
What is the SAS Theorem?The SAS theorem is a triangle congruence theorem that states that two triangles are congruent if they have two pairs of congruent sides that are corresponding to each other, and a pair of congruent included angles.
Triangles ABC and DEF have:
A pair of congruent included angles - ∠DEF ≅ ∠ABCTwo pairs of congruent sides - AB ≅ DE and CB ≅ FETherefore, they are congruent by SAS.
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The answer in the calculation for this answer is incorrect.
120 = 12x
x=12 is not accurate -- it should be 10
Answer:
10
Step-by-step explanation:
it is 10 I jus did it 120 =12 x x =12 10
What is the value of the angle marked m? P
Answer:
180
Step-by-step explanation:
bcoz it's a straight angle
A 24-foot ladder leans against a wall the base of the ladder is 9 feet from where the wall meets the ground how far up the wall does the ladder reach ?
Answer
24*9= the answer
Step-by-step explanation:
Need answers quick pleaseeee!!
Answer:
The measure of its complementary angle is 3.
Step-by-step explanation:
Subtract.
−1 3/5 − (−2 7/8)
Enter your answer as a simplified fraction by filling in the boxes.
It shouldn't be a mixed number.
When looking for interesting facts, avoid using
A. Lists of statistics
B. Quotes from famous people
C. Reliable sources
D. Humor
Answer:
D: humor.
Step-by-step explanation:
it's just common sense. I am not a gen z so I should know.
write the equation of the line, in standard form, that has an x-intercept of 2 and is parallel to 2x+y=-5
Answer:
The equation of the line, in standard form, that has an x-intercept of 2 and is parallel to 2x+y=-5 is 2x+y=4
Help please bed asap thank you!!!
Answer:
hr
Step-by-step explanation:
Need help trying to find the answer
Step-by-step explanation:
[tex] = \frac{2}{9} \times \frac{3}{5} \\ [/tex]
[tex] = \frac{6}{45} \\ [/tex]
Change into lowest term...
[tex] = \frac{2}{15} \\ [/tex]
find the area of rectangle hall of length 64 5/7 m and breadth 23 3/8 m
The area of the rectangle hall is 1512.7 square m if the length 64 5/7 m and breadth 23 3/8 m
What is the area of the rectangle?It is defined as the area occupied by the rectangle in two-dimensional planner geometry.
The area of a rectangle can be calculated using the following formula:
Rectangle area = length x width
The length of the rectangle = [tex]64\dfrac{5}{7}[/tex] m = 453/7 m
The breadth of the rectangle = [tex]23\dfrac{3}{8}[/tex] m = 187/8 m
The area of the rectangle hall:
= (453/7)(187/8) = 1512.69 ≈ 1512.7square m
Thus, the area of the rectangle hall is 1512.7 square m if the length 64 5/7 m and breadth 23 3/8 m
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What is the solution to the system of equations? (You can either do the substitution or elimination method) x - 2y = 19 x + 3y = 14 (1.-17) (-1, 17) (-17, 1) (17,-1)
Answer:
D. (17,-1)
Step-by-step explanation:
We'll start by canceling out x. To do so, multiple the first equation by -1
-1( x - 2y)=( 19 )(-1)
This gives us:
-x +2y = -19
x + 3y = 14
Add the equations together:
→ 5y = -15
→ y = -1
Plug in y = -1 into an equation:
→ x + 3(-1) = 14
→ x - 3 = 14
→ x = 17
(17,-1)
Hope this helps!
Guys, I have a question.
Will I still pass if I got a C+ in terms 1, 2, and 3?
Because I got C+ in terms 1 and 2 and I'm scared to fail so can anyone tell me if I will fail or pass if I got a C+ in term 3, and motivate me and make me confident?
C+
if you get a C+ in term three and four then I don't think you will pass if you get a C+ in term three but get your grade up to B+ A- or A+ i term four you will and if you get in the B range for term 3 at least and keep it up in term four you will pass you just have to study and pay attention in class i believe in you. you can do it
help will mark Brainliest
Answer:
The third box model
Step-by-step explanation:
Since she earns 162 from babysitting and got a total of $810, it would eman that (x represents the amount of money she got from mowing lawns) 810-162=x
x=648 so the third box model is correct
Can someone help me with this?
- Thankyou in advance
Why is the graph of y=x² always positive?
Answer:
Step-by-step explanation:
Because a square must be positive no matter what the sign of x is.
(-2)^2 = 4
2^2 = 4
Ajay wraps a gift box in the shape of a triangular pyramid. The figure below shows a
net for the gift box.
8.66 m
10 m
If all the triangles are equilateral, how much wrapping paper
did he use, in square meters?
Ajay wraps a gift box in the shape of a triangular pyramid. The amount
of wrapping paper he uses is 173.2 square inches.
How to calculate the surface area of a triangular pyramid?The formula for calculating the total surface area is expressed as:
Area = 4(area of triangle)
The area of the triangle
A = 0.5(8.66)(10)
A = 43.3 square inches
The total surface area will be
TSA = 4(43.3)
TSA = 173.2 square inches
Hence the amount of wrapping paper Ajay uses is 173.2 square inches
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