Answer:
6381.4 cm²
Step-by-step explanation:
Applying,
A = n/2(a×h)................ Equation 1
Where A = Area of the regular polygon, n = number of sides of the polygon, a = length of one side of the polygon, h = length of the apothem
But,
a = 2htan∅.............. Equation 2
Where ∅ = angle substands at the center by the regular polygon.
∅ = 360/n.................... Equation 3
Substitute equation 3 into equation 2
a = 2htan(360/n)........... Equation 4
Substitute equation 4 into equation 1
A = n/2[2htan(360/n)×h).............. Equation 5
From the question,
Given: n = 6 side, h = 24.78 cm
Substitute these values into equation 5
A = 6/2[24.78×24.78×2×tan(360/6)]
A = 3[24.78×(24.78×2×tan60°)]
A = 6381.4 cm²
Factorizie completely 2ap+aq-bq-2bp
Answer:
2ap + aq - bq -2bp = (a - b)(2p + q)
Step-by-step explanation:
(2ap + aq) - (bq -2bp)
a(2p +q) -b(q + 2p) [ taking a common from the first, and b from the second]
(2p + q) [a - b] [takin (2p + q)]
(2p + q)(a - b)
The completely factored form of the expression 2ap + aq - bq - 2bp is
(a - b)(2p + q).
In order to completely factorize the given expression, we need to look for common factors and apply factorization techniques.
Given expression: 2ap + aq - bq - 2bp
Step 1: Look for common factors.
Notice that 'a' is common in the first two terms, and '-b' is common in the last two terms.
Step 2: Factor out the common terms.
We can factor 'a' from the first two terms: a(2p + q)
And factor '-b' from the last two terms: -b(q + 2p)
Step 3: Rearrange the expression.
Now we have: a(2p + q) - b(q + 2p)
Step 4: Factor by grouping.
We can see that (2p + q) is common in both terms, so we can factor it out: (2p + q)(a - b)
Step 5: Final result.
Thus, the completely factored form of the given expression is
(a - b)(2p + q).
To know more about Factorize here
https://brainly.com/question/14549998
#SPJ2
s an initial service charge of $100 plus $50 per hour of use, and $20 per hour for the driver. Darren rented a limousine for his wedding. The expression \large 100+h\left(50\right)+h\left(20\right) represents his cost for h hours.
Part A: Find a simpler way to calculate the cost. Explain.
Part B: Find the cost for 7 hours of rental time.
Answer:
A: $100 + $70h = Cost
B: $590
Step-by-step explanation:
A: you can combine the use rate and the driver rate together since they both have the save variable.
B: $100 + $70 (7) = Cost
$100 + $490 = Cost
$590 = Cost
PLEASE PLEASE HELP ME
17 and 4, the two y values, are in the wrong place and should be swapped
Please help Me!!! I will try to give brainliest
9514 1404 393
Answer:
D. 30
Step-by-step explanation:
3 3/4 inches on the map is 15/4 inches = 15×(1/4 inch).
Then the actual distance is 15×(2 miles) = 30 miles.
Answer:
D) 30
Step-by-step explanation:
1/4 inch = 2 miles
How many 1/4's do you have?
3 3/4 inches= 15/4 inches
15 x 2 = 30
You have land that you would like to use to create two distinct fenced-in areas in the shape given below. You have 410 meters of fencing materials to use. What values of x and y would result in the maximum area that you can enclose
Answer:
[tex]x = \frac{205}{3}[/tex]
[tex]y =\frac{195}{4}[/tex]
Step-by-step explanation:
Given
[tex]p = 410[/tex] --- perimeter
See attachment for fence
Required
x and y
The perimeter of the fence is:
[tex]p = 2(x + y +5 + y) +x[/tex]
Open bracket
[tex]p = 2x + 2y +10 + 2y +x[/tex]
Collect like terms
[tex]p = 2x+x + 2y + 2y+10[/tex]
[tex]p = 3x + 4y+10[/tex]
Substitute: [tex]p = 410[/tex]
[tex]3x + 4y+10 =410[/tex]
Make 4y the subject
[tex]4y =410-10-3x[/tex]
[tex]4y =400-3x[/tex]
Make y the subject
[tex]y =\frac{400-3x}{4}[/tex]
The area (A) of the fence is:
[tex]A = (y + y + 5) * x[/tex]
[tex]A = (2y + 5) * x[/tex]
Substitute: [tex]y =\frac{400-3x}{4}[/tex]
[tex]A = (2*\frac{400-3x}{4} + 5) * x[/tex]
[tex]A = (\frac{400-3x}{2} + 5) * x[/tex]
Take LCM
[tex]A = (\frac{400-3x+10}{2}) * x[/tex]
Solve like terms
[tex]A = (\frac{410-3x}{2}) * x[/tex]
Open bracket
[tex]A = \frac{410x-3x^2}{2}[/tex]
Remove fraction
[tex]A = 205x-1.5x^2[/tex]
Differentiate both sides
[tex]A' = 205 - 3x[/tex]
To maximize; set [tex]A' =0[/tex]
[tex]205 - 3x =0[/tex]
Solve for 3x
[tex]3x = 205[/tex]
Solve for x
[tex]x = \frac{205}{3}[/tex]
Recall that: [tex]y =\frac{400-3x}{4}[/tex]
So, we have:
[tex]y =\frac{400-3*205/3}{4}[/tex]
[tex]y =\frac{400-205}{4}[/tex]
[tex]y =\frac{195}{4}[/tex]
-6 - (-8) x 5 ÷ (-10)
Answer:
- 10
Step-by-step explanation:
-6+8×5÷-10
-6+40÷-10
-6-4
-10
Answer and Step-by-step explanation:
According to PEMDAS (Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction),
First we multiply, then divide, then finally add/subtract.
-8 times 5 is -40.
-40 divided by -10 is 4.
-6 - 4 = -10
The answer to the expression is -10.
#teamtrees #PAW (Plant And Water)
In a binomial experiment, the probability of success is .06. What is the probability of two successes in seven trials? a. .0554 b. .28 c. .0036 d. .06
Answer:
a. .0554
Step-by-step explanation:
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
And p is the probability of X happening.
The probability of success is .06.
This means that [tex]p = 0.06[/tex]
What is the probability of two successes in seven trials?
This is P(X = 2) when n = 7. So
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 2) = C_{7,2}.(0.06)^{2}.(0.94)^{5} = 0.054[/tex]
The correct answer is given by option a.
IN OPQ, the measure of Q= 90, OQ=12, PO= 13, and QP=5. What ratio represents the cosine of O?
Answer:
12/13
Step-by-step explanation:
The cosine of O
= QO / PO
= 12 / 13
Find the length x (plz help giving BRAINLY)
Answer:
x=3
Step-by-step explanation:
2 triangles are proportional so we have
4/6=x/4,5
--> x=(4.4,5)/6=3
You can also use sin cos but this way is faster
Compare the quantity in Column A with the
quantity in Column B.
It Is My Work From My Laptop
Which number is a multiple of 9? A) 47 B) 56 C) 64 D) 72
Answer
72is the multiple of 9
9. I am a 3-digit number. My hundreds digit is the square of my ones digit. My tens digit is the product of my hundreds digit and my ones di
Answer:
482
Step-by-step explanation:
4 is the square of 2 and 2*4 = 8.
A ball is thrown straight down from the top of a building at a velocity of 16 ft/s. The building is 480 feet tall, and the acceleration due to gravity is 32 ft/s2.
This problem can be represented using the following equation.
How much time will the ball take to reach the ground? (1/2)32t^2+16t=480
Answer:
Time, t = 5 seconds.
Step-by-step explanation:
Given the following data;
Initial velocity = 16 ft/s
Height = 480 ft
Acceleration due to gravity = 32 ft/s²
To find how much time it will take the ball to reach the ground, we would use the kinematic equation given by the formula;
[tex] d = V_{i}t + \frac {1}{2}at^{2} [/tex]
Where;
d is the displacement.Vi is the initial velocity.a is the acceleration or acceleration due to gravity.t is the time measured in seconds.Substituting into the equation, we have;
[tex] 480 = 16t + \frac {1}{2}*32t^{2} [/tex]
[tex] 480 = 16t + 16t^{2} [/tex]
Dividing all through by 16, we have;
[tex] 30 = t + t^{2} [/tex]
Re-arranging the quadratic equation, we have;
[tex] t^{2} + t - 30 = 0 [/tex]
We would solve the quadratic equation by factorization;
[tex] t^{2} + 6t - 5t - 30 = 0 [/tex]
[tex] t(t + 6) - 5(t + 6) = 0[/tex]
[tex] (t + 6)(t - 5) = 0 [/tex]
t = -6 or 5
Since we know time can't be negative, we would ignore the value of -6.
Therefore, time = 5 seconds
Find an equivalent equation to -3x-5=16 by adding five to each side. *
-3x = 21
-3x = 11
-3x = 16
-3x - 10 = 21
-3x - 10 = 11
-3x - 10 = 16
-3x + 10 = 21
-3x + 10 = 11
-3x + 10 = 16
Answer:
- 3x = 21
Step-by-step explanation:
- 3x - 5 = 16
- 3x - 5 + 5 = 16 + 5
- 3x = 21
- 3x ÷ - 3 = 21 ÷ - 3
x = - 7
What is the first step when applying properties of operations to divide 73.85 by 4.1?
Multiply the divisor and dividend by 10.
Multiply the divisor and dividend by 100.
Divide the divisor and dividend by 10.
Divide the divisor and dividend by 100.
Answer:
B. Multiply the divisor and dividend by 100.
Step-by-step explanation:
Multiply by 100 to get rid of the decimal
Answer:
B. Multiply the divisor and the dividend by 100
Step-by-step explanation:
i did the question on a test
what is the least common denominator of 3/5 and 2/15?
Answer:
15
hope this helps
have a good day :)
Step-by-step explanation:
9/15 and 2/15 just
the mutiples of 5=5, 10, 15, 20
the multiples of 15=15, 30, 45, 60
so the common denominator is 15 so multiple 5 and 3 to get the denominator is 15 and the numerator of 9
Answer:
15.
Step-by-step explanation:
LCD: THE SMALLEST MULTIPLE TWO OR MORE DENOMINATORS HAVE IN COMMON.
An easy way to find the least common denominator (LCD), is by listing the multiples of the denominators and circling the smallest multiple that both denominators have in common.
SOLVE:
[tex]5: 5, 10, 15, 20, 25, 30, 35, 40.[/tex]
[tex]15, 15, 30, 45, 60, 75, 90, 105, 120.[/tex]
The smallest multiply both numbers have in common is 15.
I, Therefore, believe the LCD for 3/5 and 2/5 is 15.
1. The table represents values when input into a function f(x). What is the average rate of change of f(x)
from x = 2 to x=6? Show your work.
Answer:
Step-by-step explanation:
[tex]Rate \ of\ change =\frac{f(6)-f(2)}{6-2}[/tex]
[tex]=\frac{11-(-5)}{6-2} =\frac{11+5}{4}=\frac{16}{4}=4[/tex]
put 0.171, 0.18, 0.7, 0.251 into descending order
Answer:
0.7 , 0.251 , 0.18 , 0.171
Step-by-step explanation:
0.7 is highest 0.251 is 2nd highest 0.18 is lower and 0.171 is lowest as it is simplified to 0.17 to which is lower than 0.18. I am only 8 years old and you should thank me so yeah.
Write the slope intercept form of the equation of the line through the given point with the given slope. Through (-5 -2) slope -3/5.
Write the slope intercept form of the equation of the line through the given pointS
Through (2 -1) and (5,5)
Answer:
y = -3/5 × -5 - 2y = 2 × -1 + 2Step-by-step explanation:
#1
y = mx + bm = -3/5, x = -5, b = -2, y = yput in correct order#2
(2, -1) - (5,5) = 6/3 = 2/1 = 2 (remember, y is over x. The formula is y2 - y1 / x2 - x1)Pick either point given (2, -1) or (5, 5)Plug the point iny = y, m = 2, x = 2, b = -1Put in order#1
Equation in point slope form
y-y_1=m(x-x_1)y+2=-3/5(x+5)y=-3/5x-3-2y=-3/5x-5That's also slope intercept form
#2
Slope
m=(5+1)/5-2)m=6/3m=2Equation in point slope
y+1=2(x-2)y+1=2x-4y=2x-5.
Which of the following is equivalent to “the product of 2 and 3 is increased by 7”?
A. (2 + 3) + 7
B. 2(3) + 7
C. (2 + 3) – 7
D. 2(3) – 7
Answer:
its B beacause i checked multiple times
WILL MARK BRAINLIEST!!!
Which Segment below is a chord?
measure the bearing from b to a then bearing from a to b
Answer:
[tex]ax \: \: \: \: \: \: \: \:xb[/tex]
Evaluate a^4 - 6b + 3b ÷ ac for a=-2, b=6, c=3
Show work please
Answer:
0.333
Step-by-step explanation:
2^4-6(6)+3(6)÷2×3
=16-36+18÷6
=-2÷6=0.333
Please help me out! This is due today. :'(
Answer:
d.
the plant is 7mm,then times 2 of itself by on week.
so in 4weeks, it will be .
7×2×2×2×2
Which expression is the radical form of x^3/4
Outcome 0 1 2 3 Probability 0.25 0.25 0.25 0.25 Which is the expected value of the random variable with the given probability distribution? a. 0 c. 1.5 b. 1 d. 2 Please select the best answer from the choices provided
Answer:
1.5
Step-by-step explanation:
.25*0+1*.25+2*.25+3*.25=1.5
Which statement about angle 0 is true
Answer:
3/5
Step-by-step explanation:
We calculate the value of cos for an angle by dividing the adjacent angle to hypotenuse so the option with 3/5 (simplified fraction of 18/30) is the correct answer.
A binomial distribution has p = 0.60 and n = 40. a. What are the mean and standard deviation for this distribution? b. What is the probability of exactly 27 successes? c. What is the probability of fewer than 30 successes? d. What is the probability of more than 20 successes?
Answer:
a) mean = 24, standard deviation = 3.098386
b) the probability of exactly 27 successes is 0.08265
c) the probability of fewer than 30 successes is 0.96478
d) the probability of more than 20 successes is 0.8702
Step-by-step explanation:
Given the data in the question,
p = 0.60
n = 40
a) mean and standard deviation;
mean = np = 40 × 0.6
mean = 24
we know that Variance = np( 1 - p )
so standard deviation S.D = √( np( 1 - p ) )
S.D = √( 40 × 0.6( 1 - 0.6 ) )
S.D = √( 24( 0.4) )
S.D = √9.6
S.D = 3.098386
standard deviation = 3.098386
b) the probability of exactly 27 successes
P( x=27 ) = ⁴⁰C₂₇ × ( 0.6 )²⁷ × ( 0.4 )⁽⁴⁰⁻²⁷⁾
= ⁴⁰C₂₇ × ( 0.6 )²⁷ × ( 0.4 )¹³
= [40! / ( 27!( 40 - 27 )! )] × ( 0.6 )²⁷ × ( 0.4 )¹³
= 0.08265
Hence, the probability of exactly 27 successes is 0.08265
c) the probability of fewer than 30 successes.
P( x < 30 ) = 1 - P( x ≥ 30 )
= 1 - 0.3522248
= 0.96478
Hence, the probability of fewer than 30 successes is 0.96478
d) the probability of more than 20 successes.
p( x > 20 ) = 1 - P( x ≤ 20 )
= 1 - 0.1297657
= 0.8702
Hence, the probability of more than 20 successes is 0.8702
Evaluate the expression below:
7 • (10 + 3 ) – 82
Answer:
Its 9.
Step-by-step explanation:
First you do the math inside the parenthesis (13), then your gonna multiply 7 by the numbers you got in the parenthesis (7*13), finally subtract 82 from 7*13 and you get your answer, 9.
( 10+3)-82= -69
13- 82 =69
its a multiple choice please answer.
Answer:
Last option (1/2)^3 = .125
Step-by-step explanation:
1/2 (1.035)^5 =0.579637
(2/3)^2 = 4/9 = .4444
.2^2/.3^2 = 0.04/0.09 = .44444
(1/2)^3 = 1/8 = .125
So we can clearly see the last one as the answer