The value of x is x < 2
What is inequality?
An inequality in mathematics depicts the connection between two values in an algebraic statement that are not equal. One of the two variables on the two sides of the inequality may be greater than, greater than or equal to, less than, or less than or equal to another value, according to inequality signals.
-x-7> -9
Add 7 on both the sides
-x -7 + 7 > -9 +7
-x > -2
divide by -1 and change inequality sign
x < 2
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For the regions A and B shown in the graph:
Part A: Discuss the limits of integration.
Part B: Set up an integral expression that represents the total area.
Part C: Calculate the total area.
The area for the shaded region is obtained as 2 units.
How to find the area between two curves?In order to find the area, first find the intersection points of the two curves. Then, the area of the region can be found by taking the integration from the intersection point.
The curves in the graph in the form of equation are as follows,
y = x² + 3 (1)
x = (y - 5)² - 2
=> y = √(x+ 2) + 5 (2)
Part A :
The intersection points of the two curves are (-1.5, 5.5), (-1, 4) and (0.5, 3.5).
Thus, to calculate the area the limit is from x = -1.5 to x = 0.5.
Part B :
The expression of the integral is given as,
[tex]\int\limits^{-1}_{-1.5} {(x^{2} + 3 ) - (5 + \sqrt{x + 2} )} \, dx + \int\limits^{0.5}_{-1} {(5 + \sqrt{x + 2} ) -(x^{2} + 3 ) } \, dx[/tex]
Part C :
The area is found by evaluating the integral as follows,
[tex]\int\limits^{-1}_{-1.5} {(x^{2} + 3 ) - (5 + \sqrt{x + 2} )} \, dx + \int\limits^{0.5}_{-1} {(5 + \sqrt{x + 2} ) -(x^{2} + 3 ) } \, dx[/tex]
= [-1/3 + 3.375/3 + 3(-1 - (-1.5))] - [5(-1 - (-1.5)) + 2/3([tex]1^{3/2} - 0.5^{3/2}[/tex])] + [5(0.5 - (-1)) -(0.125/3 + 1/3 + 3(0.5 - (-1))]
= 2.291 - [2.5 + 2/3 × 0.647] + [5 × 1.5 - 4.8716]
= 2.291 - 2.927 + 2.6284
= 1.9924
Which is approximately 2.
Hence, the area between the curves is given as 2 units.
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Colleen is searching online for airline tickets.Two weeks ago, the cost to fly. The from Boston to Orlando was $225.Now the cost is $355. What is the percent increase? What would be the percent increase if the airline charges an additional $50 Baggage fee with the new ticket price?
Answer:
15
Step-by-step explanation:
RADICAL FUNCTIONS PROBLEM PLS HELP!!!!
Answer:
-4
Step-by-step explanation:
So we have f(x) = x + 1 and g(x) = 5x. We need to find f(g(x))(-1). So let's put g(x) into f(x): f(g(x)) = f(5x) = 5x + 1. Now we have x = -1. Let's substitute this into 5x + 1 = -5 + 1 = -4.
Which equation correctly solves for x in △RST?
The equation that correctly solves for x in △RST is; x² + 11x - 42 = 0
How to find the lengths of similar triangles?We are given that ΔDEF ∼ △RST.
This means that ΔDEF is similar to △RST.
From the concept of similar triangles, all corresponding sides are usually in the same ratio. Thus, applying this to our given triangles, we have;
DE/RS = EF/ST = DF/RT
This means when we plug in the relevant values, we will get;
(x + 5)/12 = (x + 7)/(x + 12) = 6/(x + 6)
Thus, we can say that;
(x + 5)/12 = 6/(x + 6)
Cross multiply to get;
(x + 5)(x + 6) = 72
x² + 11x + 30 - 72 = 0
x² + 11x - 42 = 0
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Complete question is;
In the figure shown, ΔDEF ∼ △RST . Which equation can be used to find the value of x?
What’s the difference between fundamental theorem of calculus part 1 and 2? (Simple explanation pls bc I don’t understand)
The difference between fundamental theorem of calculus part 1 and 2 is explained below:
What is fundamental theorem of calculus?The basic theorem of calculus is a theorem that connects the ideas of differentiating and integrating functions. A constant value that relies on where one begins to compute area makes the two procedures the inverses of one another. The relationship between the integral and derivative is established by the calculus fundamental theorem. Simply put, it says that the height of the area at a point x equals the rate of change of the area under the curve up to that point. We can find definite integrals with the aid of this theorem.
The connection between the integral and the derivative is demonstrated in The Fundamental Theorem of Calculus, Part 1. Take note. A definite integral can be assessed in terms of an antiderivative of its integrand using the Fundamental Theorem of Calculus, Part 2. This formula will calculate the total area under a curve.
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Help me out with this question please
Answer:
148 cm²
Step-by-step explanation:
Using the formula for the total surface area of a cuboid,
[tex]2(6 \times 4+6 \times 5+4 \times 5)=148[/tex]
Darren had 20 minutes to do a three problem quiz he spent 10 1/4 minutes on question A and 5 4/5 minutes on question B how much time did he have left for question C
Adding the times on A and B gets you 16 minutes and 3 seconds. 20 minutes minus 16 minutes and 3 seconds will leave you with
3 minutes, 57 seconds
Solve equation
176 =-4(4 + 6m)
to solve for m
distribute into parentheses
176 = -16 - 24m
get m on one side
176 + 16 = -24m
192 = -24m
divide by -24
-8 = m
m = -8
HEEEEEEEP
(b) A certain arcade game gives players tickets. The table below shows the
number of tickets a player gets for the number of points.
Tickets
Points
32
4
56
8
CO
63
9
O Each point does not always give the same number of tickets.
Each point appears to give the same numb of tickets.
Predicted number of tickets for getting 10 point:
Answer:
Step-by-step explanation: Can u show the picture of the table so i can understand this better
a club has 6 men and 2 women. a committee of two people is selected randomly. Find the expected number of women on the committee
The required expected number of women on the committee is 1/2 or 0.5.
The expected number of women on the committee can be found by calculating the probability that a woman is selected for the committee and then multiplying that probability by the number of people on the committee.
There are a total of 6 + 2 = 8 people in the club, and the committee has 2 people.
Given the committee is selected randomly, the probability that a particular person is selected for the committee is 2/8 = 1/4.
There are 2 women in the club, so the probability that a woman is selected for the committee is 2/8 = 1/4.
The expected number of women on the committee is the probability that a woman is selected for the committee multiplied by the number of people on the committee, which is (1/4) * 2 = 1/2.
Thus, the expected number of women on the committee is 1/2 or 0.5.
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Multiply the complex numbers: (1∕2 + 4i)2
Question 18 options:
A) –153∕4 + 8i
B) 153∕4 + 4i
C) 153∕4 + 8i
D) –153∕4 + 4i
Since -153/4 + 4i is equivalent to -63/4 + 4i, we should multiply D) –153∕4 + 4i to complex numbers (1∕2 + 4i)².
Define complex numbers.Complex numbers are those that are expressed as a+ib, where a and b are actual numbers and I is a fictitious number called a "iota." I has the value (-1). As an illustration, the complex number 2+3i is made up of the real number 2 (Re) and the imaginary number 3i (Im). In the case of quadratic equations, the unknown roots are simplified using complex numbers if the roots are not real. In computer science and engineering, complex numbers are used. Both mechanical and civil engineering use complex numbers. Control systems employ complex numbers.
Given,
Complex numbers:;
(1/2 + 4i)²
(a +b )² = a² + b² + 2ab
Multiplying,
(1/2)² + (4i)² + 2(1/2)(4i)
1/4 + 16i² + 4i
i² = -1
1 - 64/4 + 4i
-63/4 + 4i
Since -153/4 + 4i is equivalent to -63/4 + 4i, we should multiply D) –153∕4 + 4i to (1∕2 + 4i)².
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find the z score that has 70.54% of the distribution area to its right
The z score that has 70.54% of the distribution area is 9.92
What is a z-score?The z-score is a numerical measurement used in statistics to refer to how much a given value differs from the standard deviation.
For the random variable x, the z-score is;
z = (x - 11)/2
therefore, 70.54% of the area under the curve lies to the right of x,
then the area to the left of x is;
100 - 70.54 = 29.46%
From the standard table, a z-score of -0.54 will yield an area of 29.46% to the left of x.
Therefore, we get;
(x - 11)/2 = -0.54
x - 11 = -0.54(2)
x = 9.92
The z score is 9.92
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An angle measures 76.6° less than
the measure of its
complementary
angle. What is the measure of each
angle?
Sine, Cosine, Tangent question below
Answer:
3 / 5
Step-by-step explanation:
TOA-CAH-SOHTOA-CAH-SOH are 3 trigonometry ratios. They are:
TOA - tan(theta) = Opposite ÷ Adjacent
CAH - cos(theta) = Adjacent ÷ Hypotenuse
SOH - sin(theta) = Opposite ÷ Hypotenuse
SolutionWe are finding Cos(A)
Cos(A) = Adjacent ÷ Hypotenuse
= AB ÷ AC
=
[tex] \frac{30}{50} \\ = \frac{3}{5} [/tex]
Therefore Cos(A) = 3 / 5.
Look at the equation below
y = 2x - 2
Which situation is best described by the situation?
a. The temperature at 2:00 am is 2 degrees celsius and rises 2 degrees each hour for x hours.
b. The temperature at 2:00 am is 2 degrees and rises 2 degrees each hour for x hours.
c. The temperature at 2:00 am is 2 degrees and drops 2 degrees each hour for x hours
d. The temperature at 2:00 am is -2 degrees celsius and drops 2 degrees each hour for x hours
The situation that is best described by the situation is that D. The temperature at 2:00 am is -2 degrees celsius and drops 2 degrees each hour for x hours.
Which situation is best described by the situation?An equation is the statement that illustrates the variables given. In this case, two or more components are taken into consideration to describe the scenario. It is vital to note that an equation is a mathematical statement which is made up of two expressions that are connected by an equal sign.
In this case, the equation is given as:
y = 2x - 2.
This illustrates that the temperature at 2:00 am is -2 degrees celsius and drops 2 degrees each hour for x hours.
In conclusion, the correct option is D.
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Which ordered pair is a solution to the inequality 3x - 4y < 16?
(-3, -3)
(0, -4)
(4, -1)
(2, -3)
Answer: (-3,-3)
Step-by-step explanation:
Sub in the numbers
3(0)-4(-4)<16
16<16 wrong
3(-3)-4(-3)<16
-9+12<16
3<16 Correct
(-3,-3)
As a consumer starts paying his loan, the interest tends to decrease.
A. True
B. False
Answer:
A. true
Step-by-step explanation:
I believe you pay most of your interest when you first receive the loan.
Find the sum of (5y−12)+(−5y−1).
Answer:
-13
Step-by-step explanation:
The ys can combine and so can the numbers so if you take -5y + 5y you get 0. so those completely cancel out, so then you would add -12 + -1 which is -13.
Please… help. Math modeling B
The strategic decision based on the p-value is given as follows:
Allow the machine to continue operating as it is.
How to make the decision?The decision depends if we reject or do not reject the null hypothesis in this problem, as follows:
Reject the null hypothesis: changes the operation of the machine.Do not reject the null hypothesis: allow the machine to continue operating as it is.The decision rule to accept or reject the null hypothesis is given as follows:
p-value greater than the significance level of 0.05 -> do not reject the null hypothesis.p-value less than the significance level of 0.05 -> reject the null hypothesis.The p-value in this problem is given as follows:
0.06811.
Which is greater than the significance level, hence the null hypothesis is not rejected and the first option is correct, as the machine should be allowed to continue operating as it is.
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Solve equation:
8n-7=-12+3n
Answer:
n = -1
Subtract and isolate
To solve this problem, the first thing we have to do is regroup the terms so that we can then subtract, simplify, subtract, and finally simplify again.
But first we must know.
¿What are the equations?Equations are those mathematical equalities divided between two expressions which are called members and separated by their equal sign, in which known elements and unknown or unknown data appear, related by mathematical operations.
We solve the problem:8n - 7 = -12 + 3n8n - 7 = 3n - 128n - 7 - 3n = -125n - 7 = -125n = -12 + 75n = -5N = -1Now we must check our results.
8n -7 = -12 + 3n
8 × - 1 - 7 = -12 + 3 × - 1
- 8 - 7 = - 12 - 3
- 15 = - 12 - 3
- 15 = - 15
So, our results are correct, the answer is n = - 1
¡Hope this helped!
Which one is it?? Pls helpppp
Answer:
6x-3=15
Step-by-step explanation:
kevin has 5 fish in his fish tank.Jasmine has 4 times as many fish as kevin has.How many fish does Jasmine have?
Answer:
20
Step-by-step explanation:
5 x 4 = 20
PLEASE HELP 50 Points + award.
Answer: 2nd first 1st second third 4th fourth 3rd and 5th in 5th
Step-by-step explanation:
what is the value of h if h2=441?
Answer:
[tex]h=\pm 21[/tex]
Step-by-step explanation:
[tex]h^2=441 \implies h=\pm \sqrt{441}=\pm 21[/tex]
I got it wrong again >:(
In the data set shown below, what is the value of the quartiles?
{56, 58, 64, 68, 72, 75, 78}
PLEASE LOOK AT THE NUMBERS CAREFULLY
A. Q1 = 58; Q2 = 68; Q3 = 73.5
B. Q1 = 61; Q2 = 68; Q3 = 73.5
C. Q1 = 75; Q2 = 68; Q3 = 58
D. Q1 = 58; Q2 = 68; Q3 = 75
Answer:
To find the value of the quartiles, we need to first find the median of the data set. The median is the middle value of the data set, or the value that separates the lower half of the data from the upper half. In this data set, the median is 68, as it is the middle value when the data is arranged in ascending order.
Once we have the median, we can find the first and third quartiles. The first quartile, also known as Q1, is the median of the lower half of the data set, and the third quartile, also known as Q3, is the median of the upper half of the data set. In this data set, the lower half of the data is {56, 58, 64}, and the upper half of the data is {72, 75, 78}. The median of the lower half is 58, and the median of the upper half is 75.
Therefore, the value of the quartiles is Q1 = 58, Q2 = 68, and Q3 = 75.
Option D, Q1 = 58; Q2 = 68; Q3 = 75, is the correct answer.
Step-by-step explanation:
What is the slope? Simplify your answer and write it as a proper fraction, improper fraction, or integer
Answer: 2/1
Step-by-step explanation:
You can decide this by looking at the rise over the run.
Jake had of a cake. He gave
6
2
4
of it to his friend at lunch. How
much more cake does Jake have
left?
Answer:
12 Pieces left!
Step-by-step explanation:
Because, Look. 6 is 1 quarter, He gave some of his other friends less.
If you add 2 + 4, thats 6! 6 is 1 quarter. There is 4 quarters in a cake. SO 6 + 6 12, thats half of a quarter. And then he gets the other half! Good luck!
(24 pieces in his cake)
Find the measure of ∠ 1
a 180°
b 30°
c 60°
d 120°
Answer:
120
Step-by-step explanation:
Using the theorems of geometry, you know that all angles of a triangle add up to 180º. We can use an equation after looking at both angles, and the total:
30 + 30 + x = 180
60 + x = 180
x = 180 - 60
x = 120
Please help me on this I will give brainliest if possible
Answer:216
Step-by-step explanation: