Which is true about the solution to the system of inequalities shown? y > 3x + 1 y < 3x – 3 On a coordinate plane, 2 solid straight lines are shown. The first line has a positive slope and goes through (negative 2, negative 5) and (0, 1). Everything to the left of the line is shaded. The second line has a positive slope and goes through (0, negative 3) and (1, 0). Everything to the right of the line is shaded.
Answers
The true option about the solution to the system of inequalities shown is B. The second line has a positive slope and goes through (0, negative 3) and (1, 0).
How to explain the inequality?Plot these ordered pairs on a coordinate plane and connect them by straight lines.
The sign of both inequalities is "<"which means both lines are dotted and everything below the lines is shaded.
From the below graph it is clear that all values are satisfied.
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Related Questions
With Alpha set to .05, would we reduce the probability of a Type
I Error by increasing our sample size? Why or why not? How does
increasing sample size affect the probability of Type II Error?
Answers
With Alpha set to .05, increasing the sample size would not directly reduce the probability of a Type I error. The probability of a Type I error is determined by the significance level (Alpha) and remains constant regardless of the sample size.
However, increasing the sample size can indirectly affect the probability of a Type I error by increasing the statistical power of the test. With a larger sample size, it becomes easier to detect a statistically significant difference between groups, reducing the likelihood of falsely rejecting the null hypothesis (Type I error).
Increasing the sample size generally decreases the probability of a Type II error, which is failing to reject a false null hypothesis. With a larger sample size, the test becomes more sensitive and has a higher likelihood of detecting a true effect if one exists, reducing the likelihood of a Type II error. However, it's important to note that other factors such as the effect size, variability, and statistical power also play a role in determining the probability of a Type II error.
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mass of water vapor (g) / mass of dry air (kg)
is the humidity measure of....
-the mixing ratio.
-relative humidity.
-vapor pressure.
-absolute humidity.
Answers
The mass of water vapor (g) / mass of dry air (kg) is the humidity measure of the mixing ratio
The mixing ratio is defined as the mass of water vapor in grams divided by the mass of dry air in kilograms in a mixture of air and water vapor. It is a useful parameter for meteorologists and atmospheric scientists to describe the amount of water vapor in the atmosphere, particularly in the upper atmosphere where the relative humidity may be very low.
Relative humidity is the ratio of the partial pressure of water vapor in the air to the equilibrium vapor pressure at a given temperature and pressure, expressed as a percentage. Vapor pressure is the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases at a given temperature in a closed system. Absolute humidity is the mass of water vapor per unit volume of moist air.
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Meal A has 170 calories in 3 servings. Meal B has 160 calories
in 4 servings. Which meal has more calories per serving?
Answers
How do you find the slope of a graph? Give an example with your explanation.
Answers
Given:
The objective is to find the explain the slope of a graph with an example.
The slope of a graph can be identified by the formula,
\(m=\frac{y_2-y_1_{}}{x_2-x_1}\)Here, x and y represents the any two coordinates of a graph.
Consider a graph of straight line with two coordinates.
Consider,
\(\begin{gathered} (x_1,y_1)=(2,1) \\ (x_2,y_2)=(4,2) \end{gathered}\)Now substitute the values in the formula of slope.
\(\begin{gathered} m=\frac{2-1}{4-2} \\ m=\frac{1}{2} \end{gathered}\)Hence, the slope of the graph is 1/2.
HELP ASAP!!!
What is the length of BC¯¯¯¯¯?
Enter your answer in the box.
How many units???
Answers
Answer:
So, BC = BP+PC = 3 + 7 = 10 cm. Hence, the length of BC is 10 cm.
Step-by-step explanation:
Answer:
x=22 units
Step-by-step explanation:
because the base angles are congruent then the sides are congruent to
2x -24 = x -2 , now isolate x
2x -x = 24 -2
x = 22
Let A=(1-2) 23 = be the standard matrix representing the linear transformation L: R2 → R2. Then, - (2")=(-3) ' Select one: : True False
Answers
To determine the validity of this statement, we need to apply the transformation represented by the matrix A to the vector -(2"). The statement -(2") = (-3)' is false
The statement "A = (1 -2) 23 = be the standard matrix representing the linear transformation L: R2 → R2" implies that A is the standard matrix of a linear transformation from R2 to R2. The question is whether -(2") = (-3)' holds true.
To determine the validity of this statement, we need to apply the transformation represented by the matrix A to the vector -(2").
Let's first calculate the result of A multiplied by -(2"):
A * -(2") = (1 -2) * (-(2"))
= (1 * -(2") - 2 * (-2"))
= (-2" + 4")
= 2"
Now let's evaluate (-3)':
(-3)' = (-3)
Comparing the results, we can see that 2" and (-3)' are not equal. Therefore, the statement -(2") = (-3)' is false.
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1. Use a calculator to find each angle measure to the nearest degree.a) sin A = 0.4848b) cos Y = 0.7431c) cos X = 0.4226d) tan B = 19.0811
Answers
Given
a) sin A = 0.4848
b) cos Y = 0.7431
c) cos X = 0.4226
d) tan B = 19.0811
To find:
Each angle measure to the nearest degree.
Explanation:
It is given that,
a) sin A = 0.4848
b) cos Y = 0.7431
c) cos X = 0.4226
d) tan B = 19.0811
That implies,
a) sin A = 0.4848.
Then,
\(\begin{gathered} A=\sin^{-1}(0.4848) \\ =28.99\degree \\ =30\degree \end{gathered}\)b) cos Y = 0.7431.
Then,
\(\begin{gathered} Y=\cos^{-1}(0.7431) \\ =42.0038\degree \\ =42\degree \end{gathered}\)c) cos X = 0.4226.
Then,
\(\begin{gathered} X=\cos^{-1}(0.4226) \\ =65.001\degree \\ =65\degree \end{gathered}\)d) tan B = 19.0811.
Then,
\(\begin{gathered} B=\tan^{-1}(19.0811) \\ =86.99\degree \\ =87\degree \end{gathered}\)Hence, the measure of each angle is,
a) A = 30°.
b) Y = 42°.
c) X = 65°.
d) B=87°.
Kevin is 333 years older than Daniel. Two years ago, Kevin was 444 times as old as Daniel.
Let k be Kevin's age and let d be Daniel's age.
Which system of equations represents this situation?
Answers
Answer:
k = d + 3
k - 2 = 4( d - 2 )
Step-by-step explanation:
Let k be Kevin's age and Let d be Daniel's age.
Given : Kevin is 3 years older than Daniel.
i.e. Age of Kelvin = Age of Daniel+ 3
i.e. In terms of variables , k= d+3 (1)
Two years ago,
Age of Kelvin = k-2
Age of Daniel = d-2
Since Two years ago ,Kevin was 4 times as old as Daniel.
i.e. In terms of variables : k -2 = 4 x (d-2)
k-2=4(d-2) (2)
From (1) and (2) the system of equations represents this situation are
k = d + 3
k - 2 = 4 ( d - 2)
HURRY WILL NAME BRAINLIEST Which pairs of rational numbers are equivalent? Select all that apply.
-0.5 and Negative one-half
0.ModifyingAbove 7 with barand StartFraction 7 over 10 EndFraction
StartFraction 11 over 20 EndFractionand 0.55
StartFraction negative 1 over 50 EndFractionand -0.02
0.15 and 0.1ModifyingAbove 5 with bar
Answers
The 3 equivalent pairs are:
-0.5 and -1/211/20 and 0.55-1/50 and -0.02Which pairs of rational numbers are equivalent?
Remember that two numbers A and B are equivalent if:
A = B
The first pair given is:
-0.5 and (-1/2).
We know that 1/2 = 0.5, then (-1/2) = -0.5
So we conclude that
-0.5 and (-1/2) are equivalent.
Another equivalent pair is:
11/20 and 0.55
To check this, you can just solve the fraction in your calculator, you will see that:
11/20 = 0.55
Then 11/20 and 0.55 are equivalent.
The final equivalent pair is:
-1/50 and -0.02
Because:
-(1/50) = -(0.02) = -0.02
Then -1/50 and -0.02 are equivalent.
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Answer:
A B
Step-by-step explanation:
Show that w is in the subspace of R4 spanned by V1, V2, and V3, where these vectors are defined as follows. 1 -4 -9 -4 6 3 5 W= -2 - 1 - 1 -2 4 11 -8 - 15 To show that w is in the subspace, express was a linear combination of V1, V2, and V3. Select the correct answer below and, if necessary, fill in any answer boxes to complete your choice. O A. The vector w is in the subspace spanned by V1, V2, and V3. It is given by the formula w= (v1+ 2+ 3. (Simplify your answers. Type integers or fractions.) B. The vector w is not in the subspace spanned by V1, V2, and V3.
Answers
To show that w is in the subspace of R4 spanned by V1, V2, and V3, we need to find constants c1, c2, and c3 such that:
w = c1V1 + c2V2 + c3V3
We can write this as a matrix equation:
| 1 -4 -9 -4 | | c1 | | -2 |
| 6 3 5 1 | x | c2 | = | -1 |
| 2 4 11 -8 | | c3 | | -1 |
| -15 7 22 -14 | | -2 |
We can solve this system of equations using row reduction:
| 1 -4 -9 -4 | | c1 | | -2 |
| 6 3 5 1 | x | c2 | = | -1 |
| 2 4 11 -8 | | c3 | | -1 |
| -15 7 22 -14 | | -2 |
R2 = R2 - 6R1
R3 = R3 - 2R1
R4 = R4 + 15R1
| 1 -4 -9 -4 | | c1 | | -2 |
| 0 27 59 25 | x | c2 | = | 11 |
| 0 12 29 -16 | | c3 | | 3 |
| 0 -23 67 -59 | | -32 |
R4 = R4 + 23R2
| 1 -4 -9 -4 | | c1 | | -2 |
| 0 27 59 25 | x | c2 | = | 11 |
| 0 12 29 -16 | | c3 | | 3 |
| 0 0 174 -294 | | 225 |
R3 = R3 - (12/27)R2
R4 = (1/174)R4
| 1 -4 -9 -4 | | c1 | | -2 |
| 0 27 59 25 | x | c2 | = | 11 |
| 0 0 -1 22/3 | | c3 | | -13/3 |
| 0 0 1 -98/87 | | 25/58 |
R1 = R1 + 4R3
R2 = R2 - 59R3
R4 = R4 + (98/87)R3
| 1 0 -13 -10/3 | | c1 | | 21/29 |
| 0 27 0 -2119/87 | x | c2 | = | 2238/87 |
| 0 0 1 -98/87 | | c3 | | 25/58 |
| 0 0 0 1390/2391 | | 1009/2391 |
R1 = R1 + (13/1390)R4
R2 = (1/27)R2
R3 = R3 + (98/1390)R4
| 1
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of girls who tried out for the lacrosse team at euclid middle school, 12 were selected. of the 40 boys who tried out , 16 were selected are the ratios of the number of students on the team to the number of students trying out the same for both boys and girls how do you know
Answers
Answer: Yes, is the same ratio.
Explanation:
For the girls we have that out of the 30 that tried out for the team, 12 were selected. The ratio for the girls is:
\(\frac{12}{30}=\frac{2}{5}\)(we simplify 12/30 by dividing the numerator and denominator by 6)
For the boys we have that out of the 40 that tried out for the team, 16 were selected. The ratio for the boys is:
\(\frac{16}{40}=\frac{2}{5}\)(we simplify 16/40 by dividing the numerator and denominator by 8)
We can see that the ratio of the number of students on the team to the number of students trying out is the same for girls and boys.
Sorry if it’s hard to read :( need some help, can’t seem to focus.. ~ <3 thank you
Answers
Answer:
Yeah it was the pasta
Step-by-step explanation:
Everyone that was sick got ate the pasta so the pasta made them sick.
please help asap, will give brainliest and 5.0 star rating
Answers
Answer:
The mean is 3
Step-by-step explanation:
which one is the greatest 5/6 or 7/8 or 3/4
Answers
Answer:
im pretty sure its 7/8
Step-by-step explanation:
Answer:
It might be 7/8
Step-by-step explanation:
first which one would be greater
3/4 or 5/6 =? once you get you answer which one is greater?
5/6 or 7/8? so the answer will be .... 7/8
Please help me✋............
Answers
Answer:
yes it is
Step-by-step explanation:
Subtracting a number is the same as adding its opposite (also called its additive inverse). To subtract you can rewrite the subtraction as adding the opposite and then use the rules for the addition of real numbers.
pls help i will give brainliest to the quickest correct answer
graph the line with slope of 7 and y-intercept of -6
Answers
What is the missing vaue in the table below?
Answers
Answer: X is the missing value.
Step-by-step explanation:
Suppose that you were offered a lottery with a 0.50 probability of winning $500 and a 0.50 probability of winning nothing or a guaranteed payoff of $300. If you choose the lottery, you would be considered O a risk taker O a risk-neutral individual O a risk avoider O a risk-creator
Answers
If you choose the lottery, you would be considered a risk taker.
By opting for the lottery with a 0.50 probability of winning $500 and a 0.50 probability of winning nothing, you are demonstrating a willingness to take a chance and accept the uncertainty associated with the potential outcomes. A risk taker is someone who is willing to engage in risky or uncertain situations for the possibility of gaining a favorable outcome. In this case, you are accepting the risk of potentially winning nothing in exchange for the chance to win a larger amount.
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Find the equation of the line
Slope= -1/4
y-intercept = 2
Y=
Answers
Answer:
y=-1/4x + 2
Step-by-step explanation:
In that same tournament, Player O on another team scored 14.3 points per game with 4.8 free throw attempts per game. Which point below shows this information? PLEASE ANSWER QUICKLY!!!!!
Answers
Player O from another team averaged 4.8 attempts at the free throw line and scored 14.3 points per game.
what is mean ?A set of numbers' average value is referred to as "mean" in mathematics. You add up all the numbers in the set and divide by the total number of numbers to determine the mean. In the case of the set of numbers 2, 4, 6, and 8, for instance, you would add up all the numbers (2+4+6+8 = 20) and divide by the total number of numbers (4) to arrive at the mean, which is 5. The mean is calculated using the following formula: mean = (sum of all numbers) / (total number of numbers) .The mean, a widely used statistical measure of central tendency, can be used to pinpoint a dataset's mean value.
given
There are no available options for selection. Nonetheless, I can sum up the details simply as follows:
Player O from another team averaged 4.8 attempts at the free throw line and scored 14.3 points per game.
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How many different vertical arrangements are there of 14 flags if 6 are white, 5 are blue, 2 are green, and 1 is red? There are___different vertical arrangements of the flags. (Type a whole number.)
Answers
The number of different vertical arrangements of the flags is 1.
To calculate the number of different vertical arrangements of the flags, we need to consider the total number of flags and their respective quantities. In this case, we have a total of 14 flags with different colours:
6 white flags
5 blue flags
2 green flags
1 red flag
We can use the formula for permutations to calculate the number of arrangements:
n! / (n₁! x n₂! x n₃! ...)
Where n is the total number of flags and n₁, n₂, n₃, ... represent the quantities of each colour.
Substituting the values into the formula:
14! / (6! x 5! x 2! x 1!)
Calculating the factorials:
14! = 14 x 13 x 12 x 11 x 10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1
6! = 6 x 5 x 4 x 3 x 2 x 1
5! = 5 x 4 x 3 x 2 x 1
2! = 2 x 1
1! = 1
Simplifying the expression:
(14 x 13 x 12 x 11 x 10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1) / [(6 x 5 x 4 x 3 x 2 x 1) x (5 x 4 x 3 x 2 x 1) x (2 x 1) x 1]
This simplifies to:
24,024 / (720 x 120 x 2)
24,024 / 172,800
The resulting value is approximately 0.139. However, since we are looking for a whole number, we need to round up to the nearest whole number.
Therefore, the number of different vertical arrangements of the flags is 1.
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Triangles 2.0........
Answers
N=2m so 3m=1.5n then we can plug in that to get 1.5n+5=n+8 to get the value of n then we do our magic and get n=6 n+9 is 15 and it’s the same length as TU
Answer:
triangle STU and WEK are CONGRUENT
ST=WK SIDE OF A CONGRUENT TRAINGLE ARE EQUAL
2M=N.....1
SU=WE
3M+5=N+8
3M+5=2M+8
3M-2M=8-5
M=3
NOW
N=2M=2×3=6CM
TU=WK=N=6CM.
1\4-2\7 plese show your work
Answers
Answer:
-1/28
Step-by-step explanation:
You need to convert 2/7 and 1/4 into the same denominator. The GCD is 28. 2/7=8/28 and 1/4=7/28. 7/28-8/28=-1/28
Answer:
-1/28
Step-by-step explanation:
You have to find the least common multiple for 7 and 4, the denominators, to add the fractions. The LCM of 7 and 4 would be 28. You would have to multiply 7 by 4 and 4 by 7, meaning you have to multiply the numerators by the same number. 1x7/4x7-2x4/7x4= -1/28.
Triangle ABC has perimeter 18 cm.
AB = 7 cm
BC = 3 cm
By calculation, deduce whether triangle ABC is a right-angled triangle.
Please be quick,,it’s a test!!
Answers
AB= 7cm
BC=3cm
AC= x
Perimeter of triangle = AB + BC + AC
18 cm = 7cm + 3cm + X
18cm = 10cm + X
X = 18cm - 10cm
X = 8cm.
The pythagorean theorem states that in a right triangle a2 + b2 = c2, where c is the length of the hypotenuse (the longest side opposite to the right angle) and a and b are the lengths of the other two sides.
AC^2 = AB^2 + BC^2
8^2 =7^2 + 3^2
64 = 49 + 9
64 = 58
Since the equation is not true, we can deduce that ABC is NOT a right triangle.
7+3=10
18-10=8cm
The unknown side (AC) is 8cm.
Use the Pythagorean Theorem to determine whether triangle is a right triangle. a^2+b^2=c^2
7^2+3^2=8^2
49+9=64
58=64
Triangle ABC is not a right angles triangle
Graph each equation by completing the table, plotting the points, and drawing the parabola that goes
through those points. Then draw the axis of symmetry as a dashed line.
1) y = (x-3)
2. y = 4x2
xy
xy
OB 10-359
-4
-2
0
21
3
4
5
10
2
4
How does the graph of 1) compare to the parent graph?
How does the graph of 2) compare to the parent graph?
Answers
Evaluate f(x) = 3x − 7 when x = 4.
Answers
Answer:
f(x)=5
Step-by-step explanation:
3(4)-7
12-7
5
Hope This Helps!
I NEED HELP WITH THESE WILL MARK BRAINLIST
Answers
Answer:
4-|8|+\(\sqrt[3]{8}\)
4-8 = -4 +\(\sqrt[3]{8}\) = -2
-2
Will give 20 points to whoever answers and brainiest if it's correct!
Answers
Answer:
3
Step-by-step explanation:
the price of an item has been reduced by 15%. the original price was $91 find the price of the item now.
Answers
Answer:
77.35
Step-by-step explanation:
I'm sorry because I don't know how to explain it...
Help pleaseeeee????????
Answers
Answer:
the answer is letter a
Step-by-step explanation:
ok there