The solution to the system of inequalities is (-4,-7)
How to determine the solution?The system of inequalities is given as:
\(y \ge \frac 32x -1\)
y > -7
Next, we plot the graph of the inequalities (see attachment)
From the attached graph, we have:
(x, y) = (-4,-7)
Hence, the solution to the system of inequalities is (-4,-7)
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While Vivian was visiting her sister in Springfield, she bought a set of bunk beds that was marked down 25% from an original price of $80. If the sales tax in Springfield is 10%, what was the total cost of the set of bunk beds?
Answer:
66 i think
Step-by-step explanation:
A man is 6 feet tall. At 1:00, he casts a shadow that is 18 inches long. A nearby tree is 32 feel tall. At the same time of day, how long is the tree's shadow?
The answer of this would be 8 feet long.
If you take 6 feet and put that into inches, the man would be 72 inches tall. at one oclock he casts a shadow that is 1/4 of his length. so if we take this knowledge to the tree and divide 32 feet by 4, we get 8 feet long
answer: 8 feet
Please help!
Whoever answers right gets brainliest!!!!
Answer:
\(y - 4 = - 3(x - 2)\)
HELPPPPPPPP ASAPP
Heather and Joel bought a house for $157,200 and know that the house appreciates every year. They keep track of their house value for 5 years and model their data with the exponential equation
y = 150000(1.004)12
t
How much will their house be worth in 8 years?
A $240,000$240,000
B $220,000$220,000
C $1,258,884$1,258,884
D $14,457,600
Their house will be worth approximately $240,154.57 in 8 years.
Non of the options is correct.
To determine how much their house will be worth in 8 years, we can substitute the value of t = 8 into the exponential equation:
y = 150,000(1.004)^(12t)
y = 150,000(1.004)^(12*8)
y = 150,000(1.004)^96
Using a calculator or computer software to evaluate the exponential expression, we find:
y ≈ 150,000 * 1.601030475
y ≈ 240,154.57
None of the provided answer choices match the calculated value. However, we can examine the available options and make an estimation:
A) $240,000: This option is very close to the calculated value of $240,154.57 and is a reasonable estimate.
B) $220,000: This option is significantly lower than the calculated value and is not a close estimate.
C) $1,258,884: This option is significantly higher than the calculated value and is not a close estimate.
D) $14,457,600: This option is extremely higher than the calculated value and is not a realistic estimate.
Based on the provided answer choices, option A) $240,000 is the closest estimate to the calculated value of $240,154.57. However, please note that the actual value may vary depending on the specific calculations and rounding methods used.
Non of the options is correct.
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Someone pls help me
The slope greater than one would be the last image, because for every step in x, you get more than one y step.
The slope between 1 and 0 would be the second image
And the slope less than 0 would be the third image
Mrs.Chamlin earns Rs.6000 in a week.She spends Rs.250 for food and Ra.75 for transportation everyday.How much does she save in a week?
Answer:
5,675
Step-by-step explanation:
she save 5,675 in a week
Which graph shows three points that represent equivalent ratios?
Answer:
Top left should be the answer.
a. 48 square centimeters
b. 19 square centimeters
c. 42 square centimeters
d. 24 square centimeters
Answer:48
Step-by-step explanation:
what is the equation of a line that passes through the points (2,5) and (4,3)
The equation of a line that passes through points (2,5) and (4,3) is
y = -x+7.
Finding the equation of a line:
First, we need to find out the slope for the given points.
(X1,Y1) = (2,5)
(X2,Y2) = (4,3)
formula for slope(m) = \(\frac{Y2 - Y1}{X2 - X1}\)
substitute the points in the above formula
\(\frac{3 - 5}{4 - 2}\) = \(\frac{-2}{2}\)
\(\frac{-2}{2}\) = -1
slope for the given points(m) = -1.
m = -1
The equation of a line is y-y1 = m(x-x1), where x and y are variables.
substituting the values in the above equation then :
y-5 = -1(x-2)
y-5 = -x+2
y+x = 2+5
x+y = 7
y = -x+7
Therefore, the equation of the line passing through the points (2,5) and (4,3) is y = -x+7
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If 2x-y=9 and 3x+4y=19, then y=
Answer:
x = 5
y = 1
Step-by-step explanation:
2x - y = 9
3x + 4y = 19
We multiply the first equation by 4
8x - 4y = 36
3x + 4y = 19
11x = 55
x = 5
Now we put 5 in for x and solve for y
2(5) - y = 9
10 - y = 9
-y = -1
y = 1
Let's Check the answer
2(5) - 1 = 9
10 - 1 = 9
9 = 9
So, x = 5 and y = 1 is the correct answer.
m – 4.2 = 5.1
please help
Answer:
m = 9.3
Step-by-step explanation:
9.3 - 4.2 = 5.1
You can do 5.1 + 4.2 to get the answer.
Answer:
m = 9.3
Step-by-step explanation:
m -4.1 = 5.1
9.3 - 4.2 = 5.1
5.1 + 4.2
m = 9.3
Jane is having difficulty deciding whether to put her savings in the Mystic Bank or in the Four Rivers Bank. Mystic offers a 12% rate compounded quarterly, and Four Rivers offers 14% compounded semiannually. Jane has $40,000 to invest and expects to withdraw the money at the end of five years. The better deal is:
Multiple Choice
Four Rivers because she will earn about $6,442 more.
Four Rivers because she will earn about $6,523 more.
Four Rivers because she will earn about $4,000 more.
Four Rivers because she will earn about $20,000 more.
Answer:
The answer is option (C). Four Rivers Bank
Explanation:
a). The total amount Jane will receive after 5 years after investing $40,000 in the Mystic Bank can be expressed as follows;
A = P (1 + r/n) (nt)
where;
A = the future value of the initial investment
P = initial investment amount/principal amount
r = the annual interest rate
n = the number of times that interest is compounded per unit t
t = the time the money is invested for
In our case;
P=$40,000
r=12/100=0.12
n=interest is compounded quarterly which is four times a year=4
t=5 years
Replacing values in the formula;
A=40,000(1+0.12/4)^(4×5)
A=40,000(1+0.03)^20
A=40,000×1.806
A=72,244.45
The total amount Jane will receive after 5 years if she chooses to invest with the Mystic Bank is $72,244.45
b). The total amount Jane will receive after 5 years after investing $40,000 in the Four Rivers Bank can be expressed as follows;
A = P (1 + r/n) (nt)
where;
P=$40,000
r=14/100=0.14
n=interest is compounded semiannually which is two times a year=2
t=5 years
Replacing values in the formula;
A=40,000(1+0.14/2)^(2×5)
A=40,000(1+0.07)^10
A=40,000×1.967
A=78,686.05
The total amount Jane will receive after 5 years if she chooses to invest with the Four Rivers Bank is $78,686.05
c). The best deal would be to invest with Four Rivers Bank for 5 years since the total amount Jane will receive after 5 years will be $78,686.05 which is greater than $72,244.45, which is the total amount she will receive if she chooses to invest with Mystic Bank
Tommy made $55 for mowing 5 lawns. How much money would he make for mowing 8 lawns?
Type in a value that represents as likely as not in a decimal form.
According to the bar graph above how many people sleep six hours or more?
Answer:
D
Step-by-step explanation:
6-8:35
8-10:25
35+25=60
The correct answer is D.
Determine whether the underlined number is a statistic or a parameter A sample of seniors is selected and it is found that 25% own a computer Choose the correct statement below
A. Parameter because the value is a numerical measurement describing a characteristic of a sample
B. Statistic because the value is a numerical measurement describing a characteristic of a population
C. Statistic because the value is a numerical measurement describing a characteristic of a sample
D. Parameter because the value is a numerical measurement describing a characteristic of a population urses
Answer:
C. Statistic because the value is a numerical measurement describing a characteristic of a sample
ZABC and ZQRS are supplementary angles.
If the measure of ZABC = 41°, what is the
measure of ZQRS?
MZQRS = [?]
Answer:
Solution given:
<ABC+<QRS=180° (supplementary)
m<QRS=180°-41°=139° is your answer
Which expression are equivalent to the expression X minus Y times 5÷8-1÷4 X plus Y
The expression (X - Y) 5 ÷ 8 - 1 ÷ 4 (X + Y) is equivalent to
(20X² - 20Y² - 1) / (4X + 4Y)
We have,
We can simplify the given expression as follows:
(X - Y) 5 ÷ 8 - 1 ÷ 4 (X + Y)
= (5X - 5Y) ÷ 8 - 1 ÷ (4X + 4Y)
[distributing the factors]
= (5X - 5Y) /8 - 1/(4X + 4Y)
[finding a common denominator]
= ((5X - 5Y)(4X + 4Y) - 1)/(4X + 4Y)
= (20X² + 20XY - 20XY - 20Y² - 1) / (4X + 4Y)
= (20X² - 20Y² - 1) / (4X + 4Y)
Therefore,
The expression (X - Y) 5 ÷ 8 - 1 ÷ 4 (X + Y) is equivalent to
(20X² - 20Y² - 1) / (4X + 4Y)
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Gina left home, riding her bicycle at a rate of 25 miles per hour. Sean left 1 hour later, riding at a rate of 30 miles per hour. How long will it take Sean to catch up to Gina?
As per the distance formula, it take 1 hour of time for Sean to catch up to Gina.
Distance formula:
The equation that relates the distance, rate, and time is
d = rt
Where d represents the distance traveled, r represents the rate, and t represents the time.
Given,
Gina left home, riding her bicycle at a rate of 25 miles per hour. Sean left 1 hour later, riding at a rate of 30 miles per hour.
Here we need to find the time take by Sean to catch up Gina.
Let us consider x be the time when Gina left the home.
Then, Sean left 1 hour later from her time.
So, it can be written as,
=> x + 1
As the Distance traveled is the same, the ratio of Speed in case 1 to the Speed in case 2 will be the inverse of the Time taken in both cases.
Therefore, the ratio of Speed in both cases
=> 25 : 30
=> 25/30
=> 5/6
Therefore, it can be written as,
x/x+1 = 5/6
When we cross multiply them, then we get,
5x + 5 = 6x
x = 5.
If Gina left at the time of 5, then Sean left at the time of 6.
So, it take 1 hour for Sean to catch up to Gina.
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Jack is two years older than bob. If bob is x years old, what is the sum of jacks age and bobs age
Expression 2(x+1) represents the sum of bob and Jacks age.
What is Expression?An expression is combination of variables, numbers and operators.
Given,
Bob is x years old,
Jack is two years older than bob=x+2
we need to find the sum of jacks age and bobs age
x plus x plus two
x+x+2
Two times of x plus two
2x+2
Take two as common, two times of x plus one
2(x+1)
Hence expression 2(x+1) represents the sum of bob and Jacks age.
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A survey of 400 students yielded the following information: 262 were seniors, 215 were commuters, and 150 of the seniors were commuters. How many of the 400 surveyed students were seniors or were commuters?
Out of the 400 surveyed students, 327 were either seniors or commuters.
To find the number of students who were either seniors or commuters out of the 400 surveyed students, we need to add the number of seniors and the number of commuters while avoiding double-counting those who fall into both categories.
According to the information given:
There were 262 seniors.
There were 215 commuters.
150 of the seniors were also commuters.
To avoid double-counting, we need to subtract the number of seniors who were also commuters from the total count of seniors and commuters.
Seniors or commuters = Total seniors + Total commuters - Seniors who are also commuters
= 262 + 215 - 150
= 327
Therefore, out of the 400 surveyed students, 327 were either seniors or commuters.
It's important to note that in this calculation, we accounted for the overlap between seniors and commuters (150 students who were both seniors and commuters) to avoid counting them twice.
This ensures an accurate count of the students who fall into either category.
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A triangle in the coordinate plane has the following vertices: P(-4,-3), 1(-2,-2), G(-2,-4). What are the new coordinates if the triangle is translated 3 units right and 4 units up?
Answer:
P’(-1, 1), I’ (1, 2), G’(1,0)
Step-by-step explanation:
Find the value of y.
The value of y is 4√3
What are similar triangles?Similar triangles have the same corresponding angle measures and proportional side lengths. The corresponding angles of similar triangles are congruent or equal.
Also , the ratio of corresponding sides of similar triangles are equal.
There are two triangles that are similar
Therefore;
y /16 = 4/y
y² = 48
y = √48
y = √16 × √ 3
y = 4√3
Therefore, the value of y is 4√3
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If I have 53 shirts and have to get 100 shirts in 37 days, how many shirts do I have to get in less 37 day?
Answer:
67
Step-by-step explanation:
Total shirts = 53
Have to get = 100
Remaining shirts:
= 100 - 53
= 67
Find the derivative of g(x)=√9-x
The derivative of g(x)=√9-x is mathematically given as
\(\frac{d}{d x}\left[x^n\right]$\)is \($n x^{n-1}$\)
This is further explained below.
What is the derivative of g(x)=√9-x?\(g(x)=\sqrt{9}-x\)
Rewrite 9 as 3^2.
\(\frac{d}{d x}\left[\sqrt{3^2}-x\right]\)
Pull terms out from under the radical, assuming positive real numbers. \(\frac{d}{d x}[3-x]\)
Differentiate.
By the Sum Rule, the derivative of 3-x with respect to x is
\($\frac{d}{d x}[3]+\frac{d}{d x}[-x]$.\)
\($\frac{d}{d x}[3]+\frac{d}{d x}[-x]$\)
Since 3 is constant with respect to x, the derivative of 3 with respect to x is 0 .
\($0+\frac{d}{d x}[-x]$\)
Evaluate
\(\frac{d}{d x}[-x]$.\)
Since -1 is constant with respect to x, the derivative of -x with respect to x is -\frac{d}{d x}[x].
\(0-\frac{d}{d x}[x]\)
Differentiate using the Power Rule which states that
t\(\frac{d}{d x}\left[x^n\right]$\)is \($n x^{n-1}$\)
In conclusion,
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Table of grams and ounces
A 2-column table with 5 rows. Column 1 is labeled Grams, x with entries 1, 2, 3, 4, 5. Column 2 is labeled Ounces, y with entries 0.035, 0.07, 0.105, 0.14, 0.175.
Choose the equation and description for the relationship given in the table.
Answer:
B) y = 0.035x. There are 0.035 ounces in every gram.The First National Bank of Wilson has 600 checking account customers. A recent sample of 50 of these customers showed 29 have a visa card with the bank. Construct the 90% confidence interval for the proportion of checking account customers who have a visa card with the bank.
Answer:
0.58 +/- 0.115
(0.465, 0.695)
Step-by-step explanation:
Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.
The confidence interval of a statistical data can be written as.
p+/-z√(p(1-p)/n)
Given that;
Proportion p = 29/50 = 0.58
Number of samples n = 50
Confidence interval = 90%
z(at 90% confidence) = 1.645
Substituting the values we have;
0.58 +/- 1.645√(0.58(1-0.58)/50)
0.58 +/- 1.645(0.069799713466)
0.58 +/- 0.114820528652
0.58 +/- 0.115
(0.465, 0.695)
The 90% confidence interval estimate of the true population proportion of account customers who have a visa card with the bank is;
0.58 +/- 0.115
(0.465, 0.695)
Can you help me on this and give an example? Give an example of a problem in which the percent error is greater than 20%, but less than 50%. Explain how you determined the percent error.
9514 1404 393
Answer:
see attached
One batch of vegetable soup uses 2 cups of chopped onions 1.5 cups of chopped celery and one cup of chopped carrots select each ratio that will help a chef compare cups of chopped carrots to the total of cups of chopped vegetables circle all that apply
Answer:
4.5
Step-by-step
2+1=3+1.5+4.5
A pianist plans to play 7 pieces at a recital. In how many ways can she arrange these pieces in the program?
Answer:
5040
Step-by-step explanation:
7 x 6 x 5 x 4 x 3 x 2 = 5040 different ways. Look at it this way: The first place can be taken by any of the 7 objects, which leaves any of 6 objects available for second place, which leaves any of 5 objects that then leaves 4 then 3 then 2 then 1
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