Answer:
(1,1) is the answer
Explanation:
Both lines cross at (1,1)
Please help me in verify this
Which of the following is(are) the solution(s) to |7x +12|= 12?
O A. x = -24,0
O B. x= 24,0
24
O C. X=-
O D. x = 0
Answer:
the answer is B because theres no negative
y=x−1
2x+y=8
If you were to solve the following system using substitution, your new equation would be...
Answer:
2x+ (x-1) = 8
Simplified
3x-1 =8
Step-by-step explanation:
y=x−1
2x+y=8
Take the first equation and everywhere you see y in the second equation substitute x-1
2x+ (x-1) = 8
You can simplify
2x+x-1 =8
3x-1 =8
If you want to solve
3x-1+1 =8+1
3x= 9
Divide by 3
3x/3 =9/3
x=1
Then solve for y
y = x-1
y = 3-1
y=2
Round to the nearest hundredth (2 decimal places) when necessary
Answer:
216 is the area
hope this helps
have a good day :)
Step-by-step explanation:
Answer:
if it's area, then:
area = 216 cm²
Step-by-step explanation:
area = 1/2bh = 1/2(27)(16) = 216 cm²
Convert 40° to radians.
PLEASE
Answer:
We know π rad = 180°, then 1° is:
1° = π / 180 = 0.01745329251 radThen 40 ° is:
40° = 40×0.01745329251 = 0.69813170079 rad1.An appliance store sells major appliances (such as dishwashers, washing machines, dryers); for an additional fee, the store offers an extended service contract beyond the warranty period. The owner of this appliance store notes that she sold 145 dishwashers during the past 6 months; 45% of these customers also purchased the extended service contract. To maintain customer relations, the owner likes to contact her customers to see how they are enjoying their new appliances. She conducts a random sample of 35 of these customers. a)What is the probability that fewer than 40% of the customers in the sample purchased the service contract
Answer:
0.2776 = 27.76% probability that fewer than 40% of the customers in the sample purchased the service contract.
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution and the central limit theorem.
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 z-score 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 p-value, we get the probability that the value of the measure is greater than X.
Central Limit Theorem
The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]
45% of these customers also purchased the extended service contract.
This means that [tex]p = 0.45[/tex]
Sample of 35
This means that [tex]n = 35[/tex]
Mean and standard deviation:
[tex]\mu = 0.45[/tex]
[tex]s = \sqrt{\frac{0.45*0.55}{35}} = 0.0841[/tex]
What is the probability that fewer than 40% of the customers in the sample purchased the service contract?
This is the p-value of Z when X = 0.4. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{0.4 - 0.45}{0.0841}[/tex]
[tex]Z = -0.59[/tex]
[tex]Z = -0.59[/tex] has a p-value of 0.2776
0.2776 = 27.76% probability that fewer than 40% of the customers in the sample purchased the service contract.
The scores of two basketball teams in 7 games are given below.
Team A: 18, 68, 60, 54, 58, 55, 63
Team B: 52, 62, 54, 71, 49, 54, 22
Based on the data, which statement is correct?
A. Team B scores on average more points than team A because team B
has a greater mean than team A.
B. Team A scores on average more points than team B because team A
has a greater mean than team B.
C. Team B scores on average more points than team A because team B
has a greater range than team A.
D. Team A scores on average more points than team B because team A
has a greater range than team B
Answer:The answer is C
Step-by-step explanation:because to slove from range you have subtract the highest number from the lowest number from each team.Meaning ,that Team A range is 45 ,and Team B is 49 whice means that Team B is automatically the highest,so team B had more scores than team A.
(I also need an explanation)
Answer: 360000
Step-by-step explanation:yes because they want to reach to faster before the others to come and they have lot of feet that they can use
Round to the nearest hundredth (2 decimal places) when necessary
Answer:
148.92 is the area of the triangle
hope this helps
have a good day :)
Step-by-step explanation:
Answer:
If it's area, then:
area = 148.92 in²
Step-by-step explanation:
area = 1/2(20.4)(14.6) = 148.92 in²
Write and evaluate an expression for the problem.
You buy a hat for $12 and give the cashier a $20 bill. How much change do you receive?
An expression is _
The change received is $_
Answer:
An expression is x=20-12
The change received is $8
Step-by-step explanation:
NO LINKS!!! Find the measurement indicated. Round your answer to the nearest tenth.
Answer:
Solutions given;
Using cosine rule
b²=a²+c²-2*a*c*cos B°
b²=15²+8²-2*15*8*cos39
b²=102.48
b=[tex] \sqrt{102.48} [/tex]
b=10.12
b=10.1
Using sine rule
[tex] \frac{sin A}{BC} = \frac{sin B}{AC} =\frac{sin C}{AB} [/tex]
[tex] \frac{sin 29°}{15} =\frac{sin C}{8} [/tex]
Doing criss cross multiplication
Sin C=[tex] \frac{sin 29°}{15} ×8[/tex]
m<C=Sin -¹(0.29)
m<C=14.98
m<C=15°is a required answer.
what is the reciprocal of 453463.432849
Answer: 0.00000220524
Step-by-step explanation:
The distance between the amusement park and the bus terminal on a map is 2.25 inches. The map uses a scale in which 1 inch represents 15 miles. What is the actual distance between the amusement park and the bus terminal?
Answer:
33.75 miles
Step-by-step explanation:
[tex]\frac{1}{15} :\frac{2.25}{y}[/tex]
1 × y = 2.25 × 15
y = 33.75
According to the preamble, who gives power to the
Constitution?
O foreign powers
O the people
O the states
O elected officials
Answer:
The People
Step-by-step explanation:
The first part of the preamble states, "We the People of the United States, in Order to form a more perfect Union..." The United States government was built by the people, for the people. It was important to the founding fathers that there could be a democracy where the people could hold the power of the government. So, they wrote this into the constitution and preamble.
WHATS THE EQUATION & TELL HOW YOU GOT IT !!
PLEASE HELP !! ILL GIVE BRAINLIEST!! 100 POINTS !! NO FAKE ANSWERS.
Answer: 3x+18=5x-2
Step-by-step explanation:
3x+ 18x=5x-2
(3x+18x)=5x-2
21x=5x-2
5x 5x
16x=-2
16. 16
X= -1/8
put the answer in parenthesis please also solve in quadratic formula
Answer:
2(x+3)²+12=4
2x+6²+12=4
2x+36+12=4
2x=4-36-12
2x=-44
2x/2x=-44/2x
x=-22
please please help
Question 1: What is the diameter of the semi-circular cutout in the rectangle? *
2: What is the area of the figure? *
3: The figure represents a rug with a cutout to fit around a fireplace hearth. If the carpet costs $1.50 per square foot, how much will the rug cost? *
Answer:
i dont know but i need points lol
Step-by-step explanation:
1. Diameter= 14-2-2 = 10 feet
2. 11x 14 = 154
1/2 x 3.14 x 5^2 = 39.25
Area = 154-39.25 = 114.75 square feet
3. 114.75 x 1.50 = $172.13
Pls help I give brainliest and pls get this right
The number of pets is shown for houses on four different streets. Which data set fits a normal distribution curve?
O 3, 5, 4, 3, 4, 5, 4, 3, 4, 5, 3, 4,3,4,5,4,5,5, 4,5
O 2, 1, 4, 5, 3, 2, 1, 2, 3, 5, 6, 4, 5, 2, 2, 3, 4, 5, 2,7
O 0,3, 4, 2, 1, 4, 0,5, 4, 6, 4, 3, 4, 2, 1, 5, 6, 4, 3,5
4, 7, 8, 9, 0, 6, 5, 6, 8, 7, 1, 2, 3, 4, 5,3,4,6,7,7
Answer:65454545
Step-by-step explanation:
please help!!!!!!!!!!!!!!
Answer:
X=27.19
Step-by-step explanation:
Sin54=22/x
X=22/sin54=27.19
Help, I tried! I tried using PEMDAS, but I can’t figure it out. Please explain this problem.
Answer:
10
Step-by-step explanation:
What's the right answer?
Given:
[tex]sinh(f(x))=1+x^2[/tex]
To find:
The value of f'(x).
Solution:
Formulae used:
[tex]\dfrac{d}{dx}sinh(x)=cosh(x)[/tex]
[tex]\dfrac{d}{dx}x^n=nx^{n-1}[/tex]
[tex]\dfrac{d}{dx}C=0[/tex]
Chain rule:
[tex]\dfrac{d}{dx}[f(g(x))]=f'(g(x))g'(x)[/tex]
Where C is an arbitrary constant.
We have,
[tex]sinh(f(x))=1+x^2[/tex]
Differentiate with respect to x.
[tex]cosh(f(x))f'(x)=0+2x[/tex]
[tex]f'(x)=\dfrac{2x}{cosh(f(x))}[/tex]
Therefore, the required values is [tex]f'(x)=\dfrac{2x}{cosh(f(x))}[/tex].
ANSWER ASAP DONT SEND A FILE. WHAT IS THE TRANSFORMATION??
Answer:
1st one.
Step-by-step explanation:
Which expression is equivalent to 3 (x-9) + 6?
Answer: 3x-27
Step-by-step explanation:
Answer:
3x-21
Step-by-step explanation:
3(x-9)+6
3x-27+6
3x-21
Which figure is missing in the pattern?
Answer: A
Step-by-step explanation: The only one that’s not included in the pattern
Answer:
answer a.
Step-by-step explanation:
You can see that the shaded parts are moving counterclockwise (I think) so if you continue the pattern then you will get A.
???
Help ? ................
Answer:
A. [tex]\frac{9}{5}[/tex]
Step-by-step explanation:
-[tex]\frac{1}{4}[/tex] ( -[tex]\frac{4}{5}[/tex] / [tex]\frac{2}{3}[/tex] ) 6
Note that when dividing fractions, you can flip one and multiply instead to gte the same answer.
-[tex]\frac{1}{4}[/tex]*6( -[tex]\frac{4}{5}[/tex] * [tex]\frac{3}{2}[/tex] )
[tex]\frac{-6}{4}[/tex] ( [tex]\frac{-4*3}{5*2}[/tex] )
[tex]\frac{-6}{4}[/tex] ( [tex]\frac{-12}{10}[/tex] )
[tex]\frac{-6*-12}{4*10}[/tex]
[tex]\frac{72}{40}[/tex]
Divide top and bottom by 8.
[tex]\frac{72/8}{40/8}[/tex]
[tex]\frac{9}{5}[/tex]
Susan has a blue skirt, a green skirt, and a gray skirt. She also has a white sweater, a purple sweater, and a green sweater.
If she randomly selects her outfit, what is the probability she will select the gray skirt and the purple sweater to wear to work that day?
I’m stuck on this somebody help!! Please
Help please this question is important!!!!
Pls help Homework is due tomorrow and Im not sure about the answer!
Answer:
The picture isn't clear enough.