Please help me with this question

Answers:

128 subsets

127 proper subsets

=========================================================

If we have a set A = {x is some integer such that 7 < x < 15}

Then set A can be written as A = {8, 9, 10, 11, 12, 13, 14}. This is called roster notation. We write every integer between 7 and 15, excluding both 7 and 15.

There are 7 items in set A. So n = 7

This means there are 2^n = 2^7 = 128 different subsets possible

And there are (2^n) - 1 = (2^7) - 1 = 128-1 = 127 different proper subsets. A proper subset is a subset that is smaller than the original set

Answer: B.

Step-by-step explanation: Negatives are smaller than positive numbers

Answer:

That would be B

Step-by-step explanation:

because -3 is way behind 0 following by 0.9 being greater than -3 while 45 is greater and way ahead of the others

Answer:

67.5

Step-by-step explanation:

Answer:

Step-by-step explanation:

3x+y=4

First this is not really have a soluction

So a list 2 soluction right here

solve for x

3x+y=4

-y     -y

3x=4-y

x= -y+4/3

Or solve for y

3x+y=4

-3x

y=-3x+4

Or maby you want a another soluction...

Answer:

Slope Intercept form: y = -3x + 4

Slope: -3

Step-by-step explanation:

For slope intercept:

Subtract 3x from both sides:

3x + y - 3x = 4 - 3x

Simplify:

y = -3x + 4

For slope:

If the equation is y = -3x + 4 then using the formula y = mx + b:

Slope = -3

Answer:

22.5 for both L and M

Step-by-step explanation:

Answer:

you have to provide the questions

Step-by-step explanation:

What were some major changes that took place in the art world following the Reformation?

Answer:

B

Step-by-step explanation:

y=kx+m

k=y2+y1 / x2+x1

(3,5) and (7,9)

k=(9-5)/(7-3)=4/4=1

Now we want to find out what m is. This is by inserting a point in the equation of the line y=kx+m.

so I'll pick (3,5)

5=1×3+m

m= 2

To check if it's correct we could try it with the other point, (7,9).

9=1×7+m

m=2

Therefor the equation would be. y=1x+2

Answer:

YEA MAYBE STOP YELLING theres my advice like wht r u doing?

Step-by-step explanation:

Answer:

-2.

Step-by-step explanation:

(2/9)^4 * (2/9)^-7 = (2/9)^-3   so

(2/9)^-3 = (2/9)^(2m+1)

So -3 = 2m + 1  ( as the base 2/9 is common to both sides of the equation)

2m = -4

m = -2.

A representative sample based on the hospital scenario is option A

A subset of a larger population that accurately reflects the traits, diversity, and distribution of the total population is referred to as a representative sample.

Due to time, financial, or logistical limitations, it is frequently not possible or practical to investigate an entire population when conducting research or gathering data. In these situations, researchers choose a representative sample from which to deduce generalizations about the total population.

Learn more about representative sample:https://brainly.com/question/32150032

#SPJ1

Answer:

x=1

Step-by-step explanation:

-16+x=-15

-16+x+16=-15+16   Add the terms to both sides of the equation.

After that you simplify.

Answer:

leg = √7 units (approximately 2.65 units)

Step-by-step explanation:

Given a right isoceles triangle with a hypotenuse of 14 units, the two other legs must be congruent in length. Because this is a right triangle, the pythagorean theorem a^2 + b^2 = c^2, can be used.

Since the two legs are congruent, side a = side b. This means that

2leg^2 = hypotenuse.

_____________

2leg^2 = 14 units

÷ 2. ÷2

_____________

leg^2 = 7 units

√ √

____________

leg = √7 units

The exponential function f(x) can be written in the form f(x) = -4×(2)⁻¹×2ˣ

The exponential function f(x) = -4×2¹⁻ˣ in the form f(x) = abˣ, we can simplify it as follows:

f(x) = -4×2¹⁻ˣ

Using the property of exponents that aᵇ⁻ⁿ = aᵇ / aⁿ, we can rewrite the function as:

f(x) = -4×(2¹ / 2ˣ)

Simplifying further:

f(x) = -4×(2 / 2ˣ)

Since 2 can be written as 2¹, we can rewrite the function as:

f(x) = -4×(2¹ / 2ˣ) = -4×(2¹×2⁻ˣ) = -4×2¹⁻ˣ

Now we can see that a = -4 and b = 2⁻¹. Therefore, the exponential function f(x) can be written in the form f(x) = abˣ as:

f(x) = -4×(2)⁻¹×2ˣ

To know more about  exponential function click here :

https://brainly.com/question/29287497

#SPJ4

Answer:

(-5,4)

Step-by-step explanation:

If you look at A and then at AB midpoint you will see that A is 5 down from M and 4 right from M. So, if you minus 4 from -1 you get -5, and if you add 5 from -1 you get 4. Therefor the answer is (-5,4)

Advanced math : shes correct

Answer: (-3,-7)

Step-by-step explanation: I had to get it wrong on delta to give u this answer, ur welcome.

Answer:

t = -3

Step-by-step explanation:

Answer: isn’t it 1.6 because you multiply 5 x 5 x 5 = 125 and then you divide 200\125 =1.6

The answer is C because they do not repeat.

Answer:

......................

Step-by-step explanation:

you are welcome

The intermediate step in the form (a + b)2 = c (x + 4)2 = 8 as a result of completing the Square for the given equation.

The intermediate step in the form (a + b)2 = c (x + a)2 = b as a result of completing the square for the following equation is (x + 4)2 = 8.

The given quadratic equation is x2 + 32x + 116 = 12×12xTo solve this equation using the method of completing the square,

we need to express the quadratic equation in the form of (x + a)2 = b where a and b are real numbers. Hence, let's follow the steps given below:

Step 1: Rearrange the termsx2 + 32x + 116 = 12×12x becomes x2 + 32x + 116 - 144x = 0x2 - 112x + 116 = 0

Step 2: Find the value of a by dividing the coefficient of x by 2.a = (-112)/2 = -56

Step 3: Add and subtract the square of (a) to the left side of the equation.x2 - 112x + 116 = (x - 56)2 - 56(56) + 116x2 - 112x + 116 = (x - 56)2 - 3080

Step 4: Simplify(x - 56)2 - 3080 = 0(x - 56)2 = 3080

Now, comparing with (a + b)2 = c, we can say that the intermediate step in the form (a + b)2 = c (x + 4)2 = 8 as a result of completing the square for the given equation.

For more questions on Square .

https://brainly.com/question/27307830

#SPJ8

Answer:

A term is a single mathematical expression.

It may be a single number (positive or negative), a single variable ( a letter ), several variables

multiplied but never added or subtracted. Some terms contain variables with a number in front

of them. The number in front of a term is called a coefficient.

Examples of single terms:

3x is a single term. The "3" is a coefficient. The "x" is the variable.

-5x2

y

3

z

4 is also a single term.

The "-5" is the coefficient. " x

2

y

3

z

4

" are the variables comprising the term.

12 is a single term.

It is simply a numerical term called a constant.

w is a single term too.

It is a single variable term and since there is only one "w" it has an implied coefficient of 1 .

We join terms together with addition to create expressions.

5x + 7y is a two termed expression.

The 5x is one term and the 7y is the second term. The two terms are separated by a plus sign.

7x2

y

3

- 2xy

4

+ 7 is a three termed expression.

7x2

y

3

is one term, - 2xy

4

is the second term, and 7 is the third term.

The coefficient of the first term is 7.

The coefficient of the second term is negative 2.

The third term is a constant, so it has no coefficient.

Like Terms

"Like terms" are terms which have variables which look EXACTLY alike.

3x2

and -7x2

are "like terms" because both terms have the variable x

2

5x2

y

6

z

5

, 13x2

y

6

z

5

, and -21x2

y

6

z

5

are "like terms" because all of the terms have the variables "

x

2

y

6

z

5

" in them.

Combining Like Terms

To combine "like terms", combine the coefficients of terms which look exactly alike.

If you start with several terms separated by addition and subtraction signs, your answer should

also contain addition and subtraction signs based on the signs obtained from doing the

arithmetic.

Combine like terms:

3x2

+ 2x + 9 - 2x

2

+ 5x - 3

3x2

+ 2x - 9 - 2x

2

+ 5x - 3

(3 - 2 )x

2

+ (2 + 5 )x + (-9 - 3 )

1x2

+ 7x + (-12)

1x2

+ 7x - 12

You may be required to perform some other algebraic operations before you are ready to

combine like terms.

Simplify. Combine like terms:

-5( 2x3

- 3x2

+ 1) + 2(-2x

3

+ 5x2

- 1)

Distribute the -5 into the first parentheses and multiply.

Do the same with the 2 in front of the second parentheses.

-5(2x

3

) -5(-3x

2

) -5(1) + 2(-2x

3

) + 2(5x2

) + 2(-1)

-10x

3

+ 15x

2

-5 -4x3

+10x2

-2

Now combine like terms,

(-10 - 4 )x

3

+ (15 + 10)x

2

+ (-5 - 2)

-14x3

+25x2

-7

Step-by-step explanation:

Answer:

both are 2cnd play

Step-by-step explanation:

If you want to halve the recipe, you will need 32 ounces of ground beef. We can find it by multiplying.

To determine the amount of ground beef needed when halving the recipe, we need to convert pounds to ounces. There are 16 ounces in 1 pound.

Given that the original recipe calls for 4 pounds of ground beef, we can calculate the amount needed when halving the recipe by dividing it by 2.

Amount needed when halving = 4 pounds / 2 = 2 pounds.

To convert 2 pounds to ounces, we multiply it by 16:

2 pounds * 16 ounces/pound = 32 ounces.

Therefore, when you halve the recipe, you will need 32 ounces of ground beef.

In conclusion, to make half of the original recipe that calls for 4 pounds of ground beef, you will need 32 ounces of ground beef.

For more such questions on multiply, click on:

https://brainly.com/question/29793687

#SPJ8

False.

For a square matrix A, the vectors in the column space of A (col(A)) are not necessarily orthogonal to the vectors in the null space of A (nul(A)). The column space consists of all possible linear combinations of the columns of A, while the null space consists of all vectors that satisfy the equation Ax = 0.

Orthogonality between col(A) and nul(A) would imply that any vector in col(A) is perpendicular to any vector in nul(A), which is generally not the case. There may exist some specific scenarios where col(A) and nul(A) have orthogonal vectors, but it is not a general property.

Therefore, the statement that vectors in the column space of a square matrix A are orthogonal to vectors in the null space of A is false.

Learn more about column space and null space here:

https://brainly.com/question/31308205

#SPJ11

Answer:

Step-by-step explanation:

false

The area of sector KLM is approximately 24.0196 square units when rounded to two decimal places.

The area of sector KLM is to be found in circle L, which has a measure of 58 degrees and a length of 14.

The formula for determining the area of a sector is given below:Area of sector = (angle measure/360°) x πr²

The angle measure is 58°. The radius is half of the length of KL, which is 14 units. So, r = 14/2 = 7.Substituting the values in the formula,

Area of sector = (58/360) x π x 7²Area of sector = (0.1611) x (49π)Area of sector = 7.6379π

The final answer needs to be rounded off to two decimal places, which is achieved by multiplying it by 100, rounding to the nearest integer, and then dividing by 100.Area of sector ≈ 7.64 x π units²

To learn more about : area

https://brainly.com/question/25292087

#SPJ8

Answer:

g(x + 3) = -5x -38

Step-by-step explanation:

Given g(v) = -5v -23

We are to find g(x + 3)

What we shall simply do here is substitute (x + 3) for v in the g(v) equation

That would be;

g(x + 3) = -5(x + 3) -23

g(x + 3) = -5x -15 -23

g(x + 3) = -5x -38

The value of the external part of the secant segment d is 3.

The secant-tangent power theorem states that "if a tangent and a secant are drawn from a common external point to a circle, then the product of the length of the secant segment and its external part is equal to the square of the length of the tangent segment."

It is expressed as:

( tangent segment )² = External part of the secant segment × Secant segment.

From the diagram:

Tangent segment = 6

External part of the secant segment = d

Secant segment = ( d + 9 )

Plug these values into the above formula:

( tangent segment )² = External part of the secant segment × Secant segment.

6² = d( d + 9 )

Solve for d

36 = d² + 9d

d² + 9d - 36 = 0

Factor usng method:

( d - 3 )( d + 12 ) = 0

d = 3 and d = -12

Since we are dealing with dimension, we take the positive value.

Therefore, the value of d is 3.

Learn more about secant tangent power theorem here: brainly.com/question/26407978

#SPJ1