for all negative semidefinite matrix, the first principal determinant has to be either 0 or negative. A. True B.False

Answer:

i believe it would be   w=A/50

Step-by-step explanation:

Answer: C

Step-by-step explanation:

Answer:

the answer is c. it’s commutative property

Step-by-step explanation:

12-(y•2) is the same as 12-(2•y) 2 and y are just flipped around. hope this helps!

The ordered pairs for the equation y = -7x + 8 are (0, 8), (1, 1), and (-1, 15).

To find ordered pairs for the equation y = -7x + 8, we can substitute different values of x and solve for y.

Let's choose three values of x:

When x = 0, y = -7(0) + 8 = 8. So one ordered pair is (0, 8).

When x = 1, y = -7(1) + 8 = 1. So another ordered pair is (1, 1).

When x = -1, y = -7(-1) + 8 = 15. So another ordered pair is (-1, 15).

Therefore, the ordered pairs  are (0, 8), (1, 1), and (-1, 15).

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The second coordinate of the given first coordinate is determined as;

f(0) = 1 and (1) = 0.7.

The second coordinate of the given first coordinate is calculated by applying the following method as follows;

The given function;

F(x) = 0.7ˣ

The value of f(0) is calculated as;

f (0) = 0.7⁰  = 1

The value of f(1) is calculated as;.

f (1) = 0.7¹ = 0.7

Thus, the second coordinate of the given first coordinate is determined by applying the appropriate substitute of the function as shown above.

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Answer:

I think the answer is b because three times three is nine and two times six is 12 and but I think the answers b

Therefore , the solution of the given problem of probability comes out to be the likelihood that the band will win precisely two out of every four contests is 3/8, or roughly 0.375.

The primary goal of a procedure's criteria-based methods is to determine the probability that a statement is true or that a specific occurrence will occur. Any number range from zero to one, where 0 is frequently used for indicating the potential something could happen and 1 is typically used to indicate a level of confidence, can be used to represent chance. The chance that a specific event will occur is displayed in a probability illustration.

Here,

=> P(exactly 2 superior ratings) is equal to (the number of ways to get 2 superior ratings) * (the probability of getting a superior rating) * (the probability of not obtaining a superior rating)(4-2)

The binomial coefficient indicates the number of possible methods to win 2 out of 4 competitions with superior ratings:

=> (number of options to select 2 from 4)/  2 =  4, or 6

The likelihood of receiving a higher ranking is 1/100. (since they are equally likely to receive or not receive a superior rating).

With this knowledge, we can now determine the likelihood that:

=> P(exactly 2 superior ratings) = 6 * (1/2)² * (1/2)^(4-2)

=> 6 * (1/4) * (1/4) = 6/16 = 3/8

Thus, the likelihood that the band will win precisely two out of every four contests is 3/8, or roughly 0.375 (rounded to the nearest percent, this probability is expressed as a percentage).

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Answer:

19/20 , 1 1/4 , 1 4/5

Step-by-step explanation:

1.8 = 1 4/5 (fraction)

1.8 converts to 18/10. This can be simplified twice, firstly by making it 9/5 since both 18 and 10 are divisible by two, but can be simplified further to 1 4/5

1.25 = 1 1/4 (fraction)

1.25 converts to 125/100. This can be simplified to 5/4 or 1 1/4

0.95 = 19/20 (fraction)

0.95 converts to 95/100. This can be simplified to 19/20

Ascending Order (smallest to largest)

smallest - 19/20

middle - 1 1/4

largest - 1 4/5

I believe this is the right answer, but haven't done fractions in a while so may want to double check to make sure

Answer:

1,982

Step-by-step explanation:

i got It right on edge 2020

The library raised $320,100 when 400 books were sold per day.

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example:

1 + 3x + 4y = 7 is an expression.

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

Number of days book sale = 4

The library paid for advertisement each day = $25

Cost of each book (b) =  $2.00.

The expression represents the amount of money the library raised at the book sale.

= 4(25) + 2b(400)

Now,

Substitute b = 400 into the expression.

= 4(25) + 2(400)(400)

= 4(25) + 320000

= 320100

Therefore,

The library raised $320,100 when 400 books were sold per day.

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Answer:

A(t)=1350(0.9)^t

i hope this helps :)

The value of exponential function which can be used to find the value of the camera after t years is,

⇒ A( n ) = 1350 (0.9)ⁿ

A relation between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).

Given that;

A photographer buys a new camera for $1350.

And, Every year the camera decreases in value by 10%.

Hence, The value of exponential function which can be used to find the value of the camera after t years is,

⇒ A( n ) = 1350 (1 - 10%)ⁿ

⇒ A( n ) = 1350 (1 - 0.10)ⁿ

⇒ A( n ) = 1350 (0.9)ⁿ

Thus, The value of exponential function which can be used to find the value of the camera after t years is,

⇒ A( n ) = 1350 (0.9)ⁿ

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Answer:

B, you're correct

Step-by-step explanation:

1/6+1/6+1/6+1/6+1/6+1/6+1/6+1/6+1/6= 1 3/6 = 1 1/2

1+3/6= 1 1/2

A) adds up to 2.5, but the fraction model adds up to 1.5

C) adds up to 1, but the fraction model adds up to 1.5

D) adds up to 7/6, but the fraction model adds up to 1.5

The correct answer is m√5 + m√2 = 180°.

Parallel lines are those in a plane that are regularly spaced apart from one another. There is no crossing of parallel lines.

Given, k and p are parallel lines.

In an expression or equation, one value can be substituted for another and the result will still be the same. This is known as the substitution property of equality. If the values of x and y are the same, then x and y can be substituted for one another.

And we have,

m√1 + m√2 = 180°

And  m√5 =  m√1

So,  m√5 + m√2 = 180°

Therefore, in the proof, the missing term is  m√5 + m√2 = 180°.

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Answer: B

Step-by-step explanation:

#\(GameOn\)

Answer:

yea the awsered is b

Step-by-step explanation:

The two students that mix the same ratio of juice to water is given as follows:

A. Luca.

D. Micah.

The ratio between two amounts a and b is given as follows:

a to b.

Which is also the division of the two amounts.

Hence the ratio of juice to water for each person is given as follows:

Hence Luca and Micah used the same ratio, meaning that options A and D are correct.

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hello

this is more of a puzzle question than a mathematical question

the answer is 8624

in the thousand place, set 8 there since it had to be larger than 7000

next is we set hundred place. to get this, the 8 in the 100's needs the 2 in the tenths to add up 10 as requested in the question.

the other two left (4 and 6) have to be in an order to make them divisible by 4

Answer:

1. 10$

2. 24,59$

The inequality using interval notation is (18, ∝)

The inequality is given as

1/2x − 1 > 7

Add 1 to both sides of the inequality

So, we have

1/2x − 1 + 1 > 7 + 1

Evaluate the like terms

So, we have

1/2x > 8

Multiply through by 2

So, we have

x > 16

Using interval notation, we have

(18, ∝)

Hence, the inequality using interval notation is (18, ∝)

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b = speed of the boat in still water

c = speed of the current

when going Upstream, the boat is not really going "b" fast, is really going slower, is going "b - c", because the current is subtracting speed from it, likewise, when going Downstream the boat is not going "b" fast, is really going faster, is going "b + c", because the current is adding its speed to it.

Now, the boat goes Upstream 48 miles, so Downstream must be travelling the same 48 miles back.

\({\Large \begin{array}{llll} \underset{distance}{d}=\underset{rate}{r} \stackrel{time}{t} \end{array}} \\\\[-0.35em] ~\dotfill\\\\ \begin{array}{lcccl} &\stackrel{miles}{distance}&\stackrel{mph}{rate}&\stackrel{hours}{time}\\ \cline{2-4}&\\ Upstream&48&b-c&3\\ Downstream&48&b+c&2 \end{array}\hspace{5em} \begin{cases} 48=(b-c)(3)\\\\ 48=(b+c)(2) \end{cases} \\\\[-0.35em] ~\dotfill\)

\(\stackrel{\textit{using the 1st equation}}{48=(b-c)3}\implies \cfrac{48}{3}=b-c\implies 16=b-c\implies \boxed{16+c=b} \\\\\\ \stackrel{\textit{using the 2nd equation}}{48=(b+c)2}\implies \cfrac{48}{2}=b+c\implies 24=b+c\implies \stackrel{\textit{substituting}}{24=(16+c)+c} \\\\\\ 24=16+2c\implies 8=2c\implies \cfrac{8}{4}=c\implies \boxed{2=c}~\hfill~\stackrel{ 16~~ + ~~2 }{\boxed{b=18}}\)

Answer:

1. Minimum: 5

Maximum: 27

Q1: 10.5

Q2: 15

Q3: 22.5

2. Minimum: 12

Maximum: 44

Q1: 18

Q2: 24.5

Q3: 32

3. Minimum: 23

Maximum: 60

Q1: 30

Q2: 49

Q3: 55.5

Step-by-step explanation:

The minimum is the lowest number in the set.

The maximum is the highest number in the set.

Q1 is the first quartile.

Q2 is the median or middle of the set.

Q3 is the third quartile.

Hope it helps!

Answer:

x = 21

Step-by-step explanation:

As stated in the hint: When angles form a linear pair, their sum is 180° in other words, these are supplementary angles:

3x + 18 + 4x + 15 = 180 add like terms

7x + 33 = 180 subtract 33 from both sides

7x = 147 divide both sides by 7

x = 21

Given:

correct answer = 1.

total of choices = 4.

hence,

Probability of getting one question correct is given by:

then,

Probability that the student answered both of the problems correctly is given by:

ANSWER

The probability that the student answered both of the problems correctly is 0.125

Answer:

y=-1/2x-3

Step-by-step explanation:

Slope-intercept form is y=mx+b.

The slope is equal to rise/run, which you can count here is -1/2 (down one, over two).

The y-intercept is where the line hits the y-axis, which is -3.

So, the answer is y=-1/2x-3.

The image of triangle DEF, each of the coordinates of D, E and F will be multiplied by -1/2 to generate the dilated triangle.

Using dilation rules, the dilated triangle is given at the end of the answer. The coordinates of the vertices are as follows:

A'(-6,6), B'(-3,0), C'(3,6).

The rule of the dilation is to dilate a figure by a factor of a, each coordinate of each vertex of the image is multiplied by a, that is, the following rule is applied:

(x,y) -> (ax, ay).

The coordinates of the vertices of ABC are given as follows:

A(-2,2), B(-1,0), C(1,2).

After a dilation with a scale factor of 3, the coordinates of the vertices of A'B'C' will be given as follows:

A'(-6,6), B'(-3,0), C'(3,6).

These coordinates are derived multiplying the coordinates of A, B and C by 3.

The image of the triangle is given at the graph at the end of the answer.

Hence, for the image of triangle DEF, each of the coordinates of D, E and F will be multiplied by -1/2 to generate the dilated triangle.

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9514 1404 393

Answer:

  14xv^3

Step-by-step explanation:

Coefficients are 28 and 14, which have a GCF of 14.

x exponents are 1 and 6, so the GCF is x^1 = x

y exponents are 8 and 0, so the GCF is y^0 = 1

v exponents are 7 and 3, so the GCF is v^3

The GCF of the two terms is the product of the factors just found:

  14xv^3

On solving the provided question, we can say that the probability of the red die rolling is 16.67% probability = 0.1667

A branch of mathematics called probability theory determines the chance that an event will occur or that a statement is true. A probability is a number between 0 and 1, where 1 denotes certainty and about 0 denotes how probable an event is to occur. The possibility or likelihood that a specific event will occur is expressed numerically as a probability. Probabilities can also be expressed as percentages from 0% to 100% or as numbers between 0 and 1. the proportion of occurrences among all equally likely alternatives that lead to a certain event relative to all possible outcomes.

red die, there are 3 numbers greater than 3 out of 6 numbers

Probability (A) = 3/6 = 1/2.

green die, there are 2 numbers less than 3 out of 6 numbers

Probability (B) = 2/6 = 1/3.

events are independent

P(A and B) = \(P(A)P(B) = 1/2 X 1/3 = 1/6 = 0.1667\)\(P(A)P(B) = 1/2 X 1/3 = 1/6 = 0.1667.\)

16.67% probability = 0.1667

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Answer:

66 units

Step-by-step explanation:

Diagonals in a rectangle are congruent (equal)

14x + 10 = 11x + 22

Subtract 11x from the right side and subtract -10 from the left to isolate the x's with a constant

You would get: 3x = 12

Divide both sides by 3 to isolate the x by itself;

You would get: x = 4

Next, plug in the value of 4 for whichever equation you want.

11(4) + 22 is what I chose and I got 66.

Hope this helps.

Answer: -4

Step-by-step explanation: u have to do -14x+11x=-3 then u do 22-10=12 now u  have to do 12 divide by -3 and u will get -4 as ur answer

Given:

Length of hair at the beginning of february is 4.1''

Length of hair at the beginning of July is 7.7''

The probability of an adult having hypertension is  0.344 and an adult having hypertension and being classified as a low level of obesity is 0.102, having hypertension given he/she is classified as a high level of obesity is 0.540. If an adult has hypertension, the probability that he/she also has a high level of obesity is  0.444.

Probability is a branch of mathematics that deals with the likelihood of an event occurring. It is the measure of the likelihood of an event occurring divided by the number of possible outcomes. Probability is used to determine the chances of a particular outcome occurring and can range from 0 to 1.

a)The probability of an adult having hypertension is (34 + 30 + 51) / (34 + 30 + 51 + 119 + 99 + 82) = 115 / 334 = 0.344.

b) The probability of an adult having hypertension and being classified as a low level of obesity is 34 / (34 + 30 + 51 + 119 + 99 + 82) = 34 / 334 = 0.102.

c) The probability of an adult having hypertension given he/she is classified as a high level of obesity is 51 / (30 + 51 + 82) = 51 / 163 = 0.312.

d) The probability of an adult being classified as a high or average level of obesity is (30 + 51 + 99) / (34 + 30 + 51 + 119 + 99 + 82) = 180 / 334 = 0.540.

e) If an adult has hypertension, the probability that he/she also has a high level of obesity is 51 / (34 + 30 + 51) = 51 / 115 = 0.444.

f) No, an adult's hypertension status and obesity categorization are not independent. This is because the probability of an adult having hypertension given he/she is classified as a high level of obesity (0.312) is not the same as the probability of an adult having hypertension (0.344).

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