Answer:
i think is the last one
Step-by-step explanation:
72.99% of days have a high temperature between 66 and 80 degrees.
What is temperature?It is the degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch.
here, we have,
Let random variable x denote the daily temperature in a variation resort city.
then E(x) = μ = 75
and S.D. = √var(x) = σ = 6
x is approximately normal
x ≈ N(75, 6²)
then Z = (X - 75) / 6
Z ~ N(0,L)
P(66< x < 80) = P((66-75 / 6) < (x - 75 / 6) < 20 - 75 / 6)
= P( -1.5 < z < 0.23), where Z = (x - 75 / 6)
=P(z<0.23) - P(z ≤ -1.5)
= 0.7967 - 0.0668
= 0.7299
P(66< x < 80) = 0.7299
Therefore, 72.99% of days have a high temperature between 66 and 80 degrees.
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can you please help me with this question and whoever gives me the right answer will be called brainliest
Answer:
! 2 red cards !
Step-by-step explanation:
Sia draws blue cards for each of her 3 turns: 4 • 3= 12
Sia draws red cards and ends up back at 0: 6 • 2 = 12
12 - 12 = 0
Sia drew 2 red cards since 6 • 2 = 12.
helpppppp how plssss!!!
Answer:
c
Step-by-step explanation:
cuz reflect over x axis means just adding a negative sign to the outside?
Ben earns an annual income of $12,800 a year. The income tax he has to pay is 15%. What is the amount of income tax in dollars and cents that Ben has to pay?
A $1,664
B $10,880
C 12,000
D $1,920
Answer:
Step-by-step explanation:
Using I=PRT (interest= principal times rate times time) we can solve the problem
12800 times 0.15 (15%) =1920 then you multiply it by time and then you have your answer
Casey buys a bracelet. She pays for the bracelet and pays \$0.72$0.72dollar sign, 0, point, 72 in sales tax. The sales tax rate is 6\%6%6, percent.
What is the original price of the bracelet, before tax?
\$\
Answer: 0.06p = 0.72
p = 12
Step-by-step explanation:
The original price was $12.
Answer:
12
Step-by-step explanation:
Plzzzzz help right answer gets a brainly!
Answer:
[tex]\frac{5}{7}[/tex]
Step-by-step explanation:
[tex]\frac{25}{35}[/tex] (divide numerator and denominator by 5)
[tex]\frac{5}{7}[/tex]
Answer:
5/7
Step-by-step explanation:
Divide the numerator and the denominator by the Greatest Common Factor, which is 5.
Rita sells cars. She earns a salary of $800 per month, plus a commission of 2% on all sales. In December, Rita sold $115,500 worth of cars. What were her total earnings in December? ASAP !!!!!! please
Answer:
3110
Step-by-step explanation:
800 + (115500*2%)
800 + 2310
3110
The ordered pair(6,y) is on line AC. Enter the value of y for this ordered pair.
Note: Consider the below figure attached with this question.
Given:
The ordered pair(6,y) is on line AC.
To find:
The y of this ordered pair.
Solution:
From the below figure it is clear that endpoints of AC are A(-7,-4) and C(1,4). So, equation of AC is
[tex]y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]
[tex]y-(-4)=\dfrac{4-(-4)}{1-(-7)}(x-(-7))[/tex]
[tex]y+4=\dfrac{4+4}{1+7}(x+7)[/tex]
[tex]y+4=\dfrac{8}{8}(x+7)[/tex]
[tex]y+4=x+7[/tex]
Subtracting 4 from both sides, we get
[tex]y+4-4=x+7-4[/tex]
[tex]y=x+3[/tex]
Thus, the equation of line AC is [tex]y=x+3[/tex].
Put x=6 to find the y for the ordered pair (6,y).
[tex]y=6+3[/tex]
[tex]y=9[/tex]
Therefore, the value of y is 9.
Find the unit rate for number of parts manufactured per hour if 1620 parts are made in 6 hours.
Answer:
270 parts per hour
Step-by-step explanation:
given
we are told that 1620 parts are manufactured in 6 hours.
Required
Unit rate.
The unit rate in this context is defined as the number of parts that can be manufactured in one hour
Step two:
To find the unit rate, we have to divide the total parts manufactured by the total time taken
unit rate= 1620/6
unit rate= 270 parts per hour
Does anyone know the answer to 233x282/34+1243
Answer:
[tex]51\frac{579}{1277}[/tex]
Step-by-step explanation:
[tex]\frac{233(282)}{34+1243}[/tex]
[tex]=\frac{65706}{1277}[/tex]
[tex]=51\frac{579}{1277}[/tex]
Answer: 3175.52941176
Step-by-step explanation:
It is a repeating decimal so i cant put the whole answer.
PLEASE SOMEONE HELP ME THIS IS DUE IN 4 MINUTES I NEED TO FINISH IT OR I FAIL
Answer:
rounded is about 70%
Step-by-step explanation:
Can y’all please answer 2(x-1)+4(3+x)
Answer:
6x - 10
Step-by-step explanation:
2(x - 1) + 4(3 + x)
use distributive property, as in just multiply
2x - 2 + 12 + 4x
rearrange to make it easier
2x + 4x - 2 + 12
simplify
6x - 10
Reasoning assume that car X and car Y are both traveling at constant speeds. Car X has traveled 186 miles in 3 hours. Car Y has traveled 142 miles in 2 hours.
b) Which graph represents the relationship between distance and tie for Car Y
Answer:
B
Step-by-step explanation:
i took the same thing
The car travels 440 miles in 8 hours. What is the unit rate?
Answer:
55 miles per hour
Step-by-step explanation:
Hope it helps :)
Answer:
440/8
Step-by-step explanation:
write a pseudocode to calculate the volume of a cylinder
Step-by-step explanation:
Equation of cylinder: h*pi*r^2
The equation for a cylinder is base times height where the base is a circle of area calculated by pi*r^2. I hope this helps! :)
5^2 i want to know what that is.
Answer:
25
Step-by-step explanation:
Thank you so very much
Answer:
i think the first on means 1/3 is equal to 3
Step-by-step explanation:
second one i think is 2
if i get it rong pls dont be mad
Janet can make 4/5 of a necklace in 20 minutes at this straight how many necklaces to the nearest 10th of a necklace can Janet make in one hour.
Please help
The sum of two numbers is 80. The ratio of those two numbers is
3:5. Find the larger number.
Answer:
the larger number is 50
Step-by-step explanation:
3:5
×10
30:50
30+50=80
Answer:
I think the larger number would be 50
Step-by-step explanation:
I could be wrong but im pretty sure the larger number is 50.
I'm on a test and I need help, the question asks, "What's the slope of the table?"
Answer:
wym..theres no table
Step-by-step explanation:
Answer:
3.25
Step-by-step explanation:
y=mx+b
m=slope
b=y-intercept
Estimate the slope of the tangent line to the curve f(x) = x2 at the point (1, f(1)) by examining the trend in the secant slopes calculated.
Answer:
f'(1) = 2
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Function NotationCalculus
The definition of a derivative is the slope of the tangent line.
Derivative Notation
Basic Power Rule:
f(x) = cxⁿ f’(x) = c·nxⁿ⁻¹Step-by-step explanation:
Step 1: Define
f(x) = x²
Point (1, f(1))
Step 2: Differentiate
Basic Power Rule: f'(x) = 2 · x²⁻¹Simplify: f'(x) = 2xStep 3: Find Slope
Use the point (1, f(1)) to find the instantaneous slope
Substitute in x: f'(1) = 2(1)Multiply: f'(1) = 2This tells us that at point (1, f(1)), the slope of the tangent line is 2. We can write an equation using point slope form as well: y - f(1) = 2(x - 1)
Leon took a total of 12 quizzes over the course of 2 weeks. How many weeks of school will Leon have to attend this quarter before he will have taken a total of 36 quizzes? Solve using unit rates.
Answer:
6 weeks.
Step-by-step explanation: Because if he answered 12 quizzes in 2 weeks then 12 times 3 equals 36 so then all you have to do is times the weeks by 3.
what is 3 1/3 *2/3?
Answer:2 2/9
Step-by-step explanation:
3 1/3= 10/3, 10/3 x 2/3= 20/9= 2 2/9
Answer:
2.2222222
Step-by-step explanation:
Use a calculator
(CO 4) In a sample of 15 stuffed animals, you find that they weigh an average of 8.56 ounces with a standard deviation of 0.09 ounces. Find the 92% confidence interval.
Answer:
92% Confidence Interval = [8.515, 8.605]
Step-by-step explanation:
The number of samples given is 15,this less than 30, hence, we use the t score confidence Interval
= Mean ± t score × Standard deviation/√n
Mean = 8.56 ounces
Standard deviation = 0.09 ounces
n = 15
We find the degrees of freedom = n - 1
= 15 - 1 = 14
Using the T score table
T score for 92% confidence interval with degrees of freedom 14
= 1.8875
Hence:
Confidence Interval =
= 8.56 ± 1.8875 × 0.09/√15
= 8.56 ± 0.0454010035
Confidence Interval
8.56 - 0.0454010035
= 8.5145989965
≈ 8.515
8.56 + 0.0454010035
= 8.6054010035
≈ 8.605
92% Confidence Interval = [8.515, 8.605]
how long can a go-kart travel on 6 gallon of gas
What is the surface area of the pyramid 6 inches height 8 inches length 8 inches width
Answer:
384
Step-by-step explanation:
Formula:Length x Width x Hight
6x8=48 48x8=384
Have a good day!
2.3 x 10^4 x 6.7 x 10^3 divide by
5 x 10-^8
Answer:
0.3082
Step-by-step explanation:
What is an equation of the line that passes through the point (-2,7) and is perpendicular to the line x-4y = 24?
Answer:7-4(-2)=24
Step-by-step explanation:
Find the unit rate in yards per hour. 750 yards in 1/4 hour.
Use the number line to graph – 12
3
, – 11
3
, –1.5, and –1.
A number line going from negative 2 to positive 1 in increments of 1. There are 3 equal spaces between each number.
Which number is less than –1.5?
–1
–1.5
Negative 1 and one-third
Negative 1 and two-thirds
Answer is d? -1 2/3
Answer:
its D
Step-by-step explanation:
The number less than –1.5 will be -1 2/3(Negative 1 and two-thirds). Option d is correct.
What is a number line?It is defined as the representation of the numbers on a straight line that goes infinitely on both sides.
It is given that, a number line with increments of 1 from negative 2 to positive 1. Each number is separated by three exactly equal spaces.
Negative numerals are located on the number line to the left of zero. The numbers on the right side of 0 on the number line are reflected in the negative numbers (positive numbers). The negative number line is the term used to describe this section of the number line.
The value - 1.6 is less than -1.5 and represent on the left side of the graph.
Thus, the numbers less than –1.5 will be -1 2/3(Negative 1 and two-thirds). Option d is correct.
Learn more about the number line here:
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PLEASE HELP ME !! 100 POINTS
Answer: i cant read that could you type it out
Step-by-step explanation:
Answer:
can't even see the text, man
Step-by-step explanation:
