Many utility companies promote energy conservation by offering discount rates to consumers who keep their energy usage below certain established subsidy standards. A recent report notes that 60% of island residents of a country have reduced their electricity usage sufficiently to qualify for discounted rates. If five residential subscribers are randomly selected from a city on this island find the probability of each of the following events. (Round your answers to three decimal places.)
a. At least four qualify for the favorable rates.
b. All five quality for the favorable rates.
Answer: Many utility companies promote energy conservation by offering discount rates to ... who keep their energy usage below certain established subsidy standards. A recent EPA report notes that 70% of the island residents of Puerto Rico have reduced their electricity usage sufficiently to qualify for discounted rates.
Step-by-step explanation:
Malika bought 7 new pairs of shoes. Each pair of shoes cost the same amount and was discounted by $21.75.
Lauren paid a total of $654.50 before tax. How much was each pair of shoes before the discount?
A: $152.25
B: $93.50
C: $115.25
D: $71.75
Multiply the amount of the discount by pairs of shoes:
21.75 x 7 = 152.25
Add that to the total she spent:
152.25 + 654.50 = 806.75
Divide the total by pairs of shoes:
806.75/7 = $115.25
The answer is C. $115.25
Give the opposite of the following
1. 8
2. - 79
3. 93
4. 65
5. -6
Answer:
1. -8
2. 79
3. -93
4. -65
5. 6
Step-by-step explanation:
I hope you were finding this type of answer.
If m∠T = (2x + 85) ° , m∠V = (5x + 29) ° , and the sum of the measures of the angles is 93 ° , find the measure of each angle.
Answer:
x = -3
m∠T = 79
m∠V = 14
Step-by-step explanation:
Find the lettered angles.
Which table shows x- and y-values for 3 points on the line graphed below?
Please help best answer will get brainly
You need a ladder that will reach up a 25 foot tall house when placed 10 feet away from the house how tall does the ladder need to be?
Answer:
15 ft TRUST ME I LOVE MATH
Work out the gradient of the line joining the points (2, 3) and (5,7)
Answer:
The gradient of the line joining the points [tex]P(x,y) = (2,3)[/tex] and [tex]Q(x,y) = (5,7)[/tex] is [tex]\frac{4}{3}[/tex].
Step-by-step explanation:
The gradient of the line joining two distinct point on a plane is represented by the slope of a secant line ([tex]m_{PQ}[/tex]), that is:
[tex]m_{PQ} = \frac{y_{Q}-y_{P}}{x_{Q}-x_{P}}[/tex] (1)
If we know that [tex]P(x,y) = (2,3)[/tex] and [tex]Q(x,y) = (5,7)[/tex], then the gradient of the line is:
[tex]m_{PQ} = \frac{7-3}{5-2}[/tex]
[tex]m_{PQ} = \frac{4}{3}[/tex]
The gradient of the line joining the points [tex]P(x,y) = (2,3)[/tex] and [tex]Q(x,y) = (5,7)[/tex] is [tex]\frac{4}{3}[/tex].
Equation Editor Solve -32= -1db for b.
Express the solution as a fraction or mixed
number in simplest form.
Answer:
1+1=2
2+2=4
4+4=8
8+8=16
Using ax^2 + bx + c = 0 factor 25x^2 = 49 into two linear factors
[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{25x^2=49}[/tex]
[tex]\textsf{DIVIDE by 25 to BOTH SIDES}[/tex]
[tex]\mathsf{\dfrac{25x^2}{25}=\dfrac{49}{25}}[/tex]
[tex]\textsf{Cancel out: }\mathsf{\dfrac{25}{25}}\textsf{ because it gives you 1}[/tex]
[tex]\textsf{Keep: }\mathsf{\dfrac{49}{25}}\textsf{ because it helps us solve for x}[/tex]
[tex]\textsf{New equation: }\mathsf{x^2 = \dfrac{49}{25}}[/tex]
[tex]\textsf{TAKE the SQUARE ROOT}[/tex]
[tex]\mathsf{x\pm \sqrt{\dfrac{49}{25}}}[/tex]
[tex]\mathsf{\sqrt{\dfrac{49}{25}}= 1.4}[/tex]
[tex]\mathsf{- \sqrt{\dfrac{49}{25}}= -1.4}[/tex]
[tex]\boxed{\boxed{\large\text{Answer: \huge \bf x = 1.4 or x = -1.4}}}\huge\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
176.625 rounded to the nearest tenth
Answer:
176.6
Step-by-step explanation:
Answer:
180 idrk
Step-by-step explanation:
When I think of a number and halve it, then
result is 7. Form an equation and solve it to fins
the number that I thought of.
Answer:
14
Step-by-step explanation:
7 × 2 = 14
the number you thought of was 14
:)
A bottle-filling process has a low specification limit of 1.8 liter and upper specification limit of 2.2 liter. The standard deviation is 0.15 liter, and the mean is 2 liter. The company now wants to reduce its defect probability as 0.0455. To what level would it have to reduce the standard deviation in the process to meet this target
Answer:
The standard deviation would have to be reduced to 0.1 in the process to meet this target
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
The mean is 2 liter.
This means that [tex]\mu = 2[/tex]
The company now wants to reduce its defect probability as 0.0455.
This means that:
P(X < 1.8) = 0.0455/2 = 0.02275
P(X < 2.2) = 0.0455/2 = 0.02275
This means that the pvalue of Z when X = 1.8 is 0.02275. This means that when [tex]X = 1.8, Z = -2[/tex]. We use this to find the new standard deviation [tex]\sigma[/tex]. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]-2 = \frac{1.8 - 2}{\sigma}[/tex]
[tex]-2\sigma = -0.2[/tex]
[tex]\sigma = \frac{0.2}{2}[/tex]
[tex]\sigma = 0.1[/tex]
The standard deviation would have to be reduced to 0.1 in the process to meet this target
f(x) = x2
What is f(x) + f(x) + f(x)?
Answer:
3x²
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Terms/CoefficientsFunctionsFunction NotationStep-by-step explanation:
Step 1: Define
[Given] f(x) = x²
[Solve] f(x) + f(x) + f(x)
Step 2: Find
Combine like terms: 3f(x)Substitute in function: 3(x²)Multiply: 3x²provided
What is the value of 2 in the equation 60x = 360x
what number is this? 5.2 • 10^2 +3
A culture of bacteria has an initial population of 790 bacteria and doubles every 4
hours. Using the formula P+ = Po.2, where P is the population after t hours, Po
is the initial population, t is the time in hours and d is the doubling time, what is the
population of bacteria in the culture after 11 hours, to the nearest whole number?
Answer:5314.4563≈5314
Step-by-step explanation:
Graph the line with slope 6 and y intercept -3
Answer:
Step-by-step explanation:
The series converges by the Limit Comparison Test. Each term is less than that of a convergent geometric series. The series converges by the Limit Comparison Test. The limit of the ratio of its terms and a convergent p-series is greater than 0. The series diverges by the Limit Comparison Test. Each term is greater than that of the divergent p-series. The series diverges by the Limit Comparison Test. The limit of the ratio of its terms and the harmonic series is greater than 0.
Answer:
hello your question has some missing information attached below is the complete question
answer : The series diverges by the Limit Comparison Test. The limit of the ratio of its terms and the harmonic series is greater than 0.
Step-by-step explanation:
steps to determine if the series converges
step 1 : apply series limit comparison test
step 2 : consider Cauchy's convergence condition ; which states that ∑an converges if and only if for every ∈ > 0 there is a natural number N
attached below is the detailed solution
Which expression is equivalent to 1 2 ( 4 x + 8 ) ?
Answer:
48x + 96
Step-by-step explanation:
Given expression: 12(4x + 8)
Using the Distributive Property, we can simplify the given expression.
Distributive Property: [tex]a(b + c) = ab + ac[/tex]
Simplify:
[tex]\implies 12(4x+8)\\\\\implies 12(4x) + 12(8)\\\\\implies 48x + 96[/tex]
The expression that is equivalent to 12(4x + 8) is [tex]48x + 96[/tex].
Construct triangle ABC such that AB = 8cm, BC = 6.5 cm and angle ABC = 80 degree. Measure and write down the length of AC.
Answer:
AC = 9.39 cm
Step-by-step explanation:
sin 80 = m/8
m = 7.88
cos 80 = n/8
n = 1.39
p = 6.5 - 1.39 = 5.11
AC² = 7.88² + 5.11²
AC = 9.39 cm
at a store a shirt has regular price of y dollars. During a sale, the price of the shirt by 40%. The expression 0.60y describes the discounted price, in dollars, of the shirt. Which expression also describes the discounted price, in dollars, of the shirt?
a) 0.4y
b) 7 - 0.4
c) y - 0.4y
d) y - 40
Solve for b.
5b – 8 = 4 – b
b = [?]
Enter
raiz ( 8 sobre 5 , o )dominio es b e r rango y e r intercepcion vertical (0,-8)
Out of a group of 30 volunteers, 17 people are chosen to participate in a survey about the number of phone calls they make each week. What is the sample in this situation?
Answer:
i dont know
Step-by-step explanation:
cool
Answer:
I know you properly don't need it anymore but other people might so here you go!
Step-by-step explanation:
44) You and a friend are each driving a car in opposite directions. You both leave your house at the same time. If you are traveling at "a" miles an
hour and your friend is traveling at "b" miles an hours, make up a formula to show how far apart the two cars are after 5 hours. Let "Y" represent the
total distance. Refer to the given diagram for help in visualizing the problem and writing the complete formula. (Hint: d = rt)
d=?
d=?
Answer:
d=42
Step-by-step explanation:
Untaxi viaja
ina
velocidad de 48 mph
llegar a un destino
in 2 2 horas media.
y
¿ Cuál seria su velocidad
Si se tarda dos horas?
para
llegar
Answer:
60 millas por hora.
Step-by-step explanation:
Dado que un taxi viaja a una velocidad de 48 mph para llegar a un destino en 2 horas y media, para determinar cuál seria su velocidad si se tarda dos horas para llegar se debe realizar el siguiente cálculo:
48 x 2.5 = 120
120 / 2 = X
60 = X
Así, su velocidad, si se tardase dos horas en llegar, sería de 60 millas por hora.
Prove that: cotθ - tanθ = 2cos²θ - 1/sinθcosθ
Need help, fast!
See attachment to get your answer. Thanks.
Which is the graph of g(x) = 2^(x – 1) + 3?
which has a value of (2/3)-4
16/81
-81/16
81/16
12/8
Answer:
81/16
Step-by-step explanation:
(2/3)-4 has a value 81/16
HELP ME PLEASE!!!!
I WILL GIVE BRAINLIST!!!!
Answer:
1/6
Step-by-step explanation:
