is a parallelogram a trapezoid?
​

Answer:

y=x+k

Step-by-step explanation:

her rate never changes because"pay her $200 no matter how long the work takes"

Answer:

-21

Step-by-step explanation go up in negitive #s  just stay in negitive  

-14,-15,-16,-17,-18,-19,-20,-21!

Answer:

It was not my intention to post that answer, as it does not solve the question, but hope it helps somehow.  

Step-by-step explanation:

\($\text{b)} \frac{\sin(a)}{\sin(a)-\cos(a)} - \frac{\cos(a)}{\cos(a)-\sin(a)} = \frac{1+\cot^2 (a)}{1-\cot^2 (a)} $\)

You want to verify this identity.

\($\frac{\sin(a)(\cos(a)-\sin(a))}{(\sin(a)-\cos(a))(\cos(a)-\sin(a))} - \frac{\cos(a)(\sin(a)-\cos(a))}{(\sin(a)-\cos(a))(\cos(a)-\sin(a))} = \frac{1+\cot^2 (a)}{1-\cot^2 (a)} $\)

The common denominator is

\((\sin(a)-\cos(a))(\cos(a)-\sin(a))= \boxed{2\cos (a)\sin(a)-\cos ^2(a)-\sin ^2(a)}\)

Solving the first and second numerator:

\(\sin(a)(\cos(a)-\sin(a))=\sin(a)\cos(a)-\sin^2(a)\)

\(\cos(a)(\sin(a)-\cos(a))= \cos(a)\sin(a)-\cos^2(a)\)

Now we have

\($\frac{ \sin(a)\cos(a)-\sin^2(a) -(\cos(a)\sin(a)-\cos^2(a))}{2\cos (a)\sin(a)-\cos ^2(a)-\sin ^2(a)}$\)

\($\frac{ -\sin^2(a) +\cos^2(a)}{2\cos (a)\sin(a)-\cos ^2(a)-\sin ^2(a)}$\)

Once

\(-\sin^2(a) +\cos^2(a) = \cos(2a)\)

\(2\cos (a)\sin(a) = \sin(2a)\)

Also, consider the identity:

\(\boxed{\sin^2(a)+\cos^2(a)=1}\)

\($\frac{ -\sin^2(a) +\cos^2(a)}{2\cos (a)\sin(a)-\cos ^2(a)-\sin ^2(a)}=\boxed{\frac{ \cos(2a)}{\sin(2a)-1}}$\)

That last claim is true.

Answer:

3.49 liters of paint in each container

Step-by-step explanation:

So he started off with 8.65 + 8.09 which is 16.74. Then he poured it equally into 4 containers and had 2.78 leftover. so you tak 16.74 - 2.78 which is 13.96. Lastly you divide 13.96 by 4 which is 3.49

I believe this is correct!

Answer:

3.49 liters per container

Step-by-step explanation:

First we need to find the total amount of paint

8.65+8.09=16.74(total amount of paint)

Now subtract 2.78 from 16.74 and then divide that by 4

16.74-2.78=13.96

13.96/4=3.49

The scientific standard which jane evaluates based on the condition above is falsifiability.

It may appear that Jane is attempting to measure test-retest reliability, that is, a correlation between the first scores and those a year later. But without control over variables that could affect the second scores, there is there is hardly a strong argument for the reliability of her test. Moreover, some of the couples may not be together after a year has passed.

Falsifiability or refutability is the probability that a statement can be falsified or proven false through observation or physical testing. Something that can be falsified does not mean that it is wrong, but it means that if the statement is wrong, then the error can be shown.

The claim that "it is not true that humans live forever" cannot be falsified because it is impossible to prove wrong. In theory, one would have to observe a human living forever to falsify that claim. On the other hand, "all humans live forever" is falsifiable because the death of a single human being can disprove the statement false (excluding metaphysical statements about the soul, which cannot be falsified).

Falsifiability, especially testability, is an important notion in science and philosophy of science. This thought was popularized by Karl Popper. Popper stated that a hypothesis, proposition, or theory is scientific if it can be falsified. Falsifiability is an important (but not sufficient) criterion for scientific ideas. He also stated that statements that cannot be falsified are unscientific.

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To simplify the expression (x^2)⁵ / (x^2) (x^6), we can apply the laws of exponents.

When dividing exponential expressions with the same base, we subtract the exponents. Therefore, we have:

(x^2)⁵ / (x^2) (x^6) = x^(2*5 - 2 - 6) = x^(-1)

To evaluate this expression for x = -3, we substitute -3 in place of x:

(-3)^(-1) = 1/(-3) = -1/3

Therefore, the simplified expression (x^2)⁵ / (x^2) (x^6) evaluated for x = -3 is -1/3.

Given that, Margaret drove to an appointment at 50 miles per hour. Her speed on her return was 40 miles per hour. The trip back took one quarter of an hour longer.

The question is asking to determine the distance Margaret drove to her appointment in miles. The formula used to solve the problem is as follows;

distance = speed × time Given that the distance to and from the appointment are the same. Distance to the appointment (going) = Distance from the appointment (returning)Distance = Distance Going = Distance Returning Let's determine the time it took Margaret to drive to her appointment using the formula above. Distance = speed × time Distance Going = 50 mph × t (where t represents time)Distance Going = 50tThe time it took her to drive back is (t + 0.25) since the return took one quarter of an hour longer. Distance = speed × timeDistance Returning = 40 mph × (t + 0.25)Distance Returning = 40t + 10Using the formula Distance = Distance Going = Distance Returning50t = 40t + 10Subtract 40t from both sides.50t - 40t = 10t = 10Thus, t = 1The distance going to the appointment is;Distance Going = 50tDistance Going = 50 × 1Distance Going = 50 , Margaret drove 50 miles to her appointment.Answer: Margaret drove 50 miles to her appointment.

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False. To calculate a percent increase, the portion is not the missing element. The portion refers to the initial or original value, while the missing element is the final or increased value.

The formula for calculating a percent increase is:

Percent Increase = (Final Value - Initial Value) / Initial Value * 100

In this formula, the initial value is the portion that represents the starting or original value. The final value is the missing element, as it represents the increased or final value after the increase.

By subtracting the initial value from the final value, we obtain the difference between the two. Dividing this difference by the initial value gives us the relative increase as a decimal or fraction. Multiplying by 100 converts it into a percentage, representing the percent increase.

Therefore, the portion in calculating a percent increase is the known value or initial value, while the missing element is the final value that we are trying to determine or find.

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If f: rn → rm is a linear map, then its derivative is simply the map itself. This is because a linear map is a function that preserves vector addition and scalar multiplication.

In other words, if we take two vectors in the domain and add them together, and then apply the linear map, it is the same as applying the linear map to each vector separately and then adding the results. Similarly, if we multiply a vector in the domain by a scalar and then apply the linear map, it is the same as multiplying the result of applying the linear map to the original vector by the same scalar.
Formally, we can express this idea using the concept of a Jacobian matrix. The Jacobian matrix of a function describes the rate at which the function changes near a particular point. For a linear map, the Jacobian matrix is simply the matrix that represents the map. This means that the derivative of f is the matrix A such that f(x) = Ax for all x in rn.
To see why this makes sense, consider the simplest case of a linear map from R1 to R1, given by f(x) = ax, where a is a constant. The derivative of this function is f'(x) = a, which is just the constant coefficient of the linear map. More generally, the derivative of a linear map f: rn → rm is the matrix A such that f(x) = Ax for all x in rn.

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Answer:

y=5x+1 (this may be correct but I can't guarantee because you haven't provided graph)

Step-by-step explanation:

step 1

Find the slope of the given line

we have

(0,1) and (5,0)

m=(0-1)/(5-0)

m=-1/5

step 2

Find the slope of the perpendicular line to the given line

we know that

If two lines are perpendicular, then the product of their slopes is equal to -1

m1*m2=-1

m1=-1/5

substitute

(-1/5)*m2=-1

m2=5

step 3

Find the equation of the line with slope m=5 and y-intercept (0,1)

The equation of the line into slope intercept form is equal to

y=mx+b

we have

m=5

b=1

substitute

y=5x+1

please mark me brainliest!

The equation for the asymptote of the graphed function is x = 7

The asymptote is a endlessly tendency to a given value. A vertical one is a tendency to infinity.

Here we can see that there is a vertical asymoptote, notice that in one end the function tends to positive infinity and in the other it tends to negative infinity.

The equation of the line where the asymptote is, is:

x = 7

So that is the answer.

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Square root of 4 is not a polynomial. It is a quadratic function. Functions containing other operations like square root is not a polynomial.

A polynomial need not have any square root.  polynomial is a finite sequence form. it must contain no square roots of variables, no fractional or negative powers on the variables, and no variables in the denominators of any fractions. Polynomial are sums and differences of polynomial terms. For an expression to be a polynomial term, any variables in the expression must have whole number powers. It should not have any square root, cube root or any negative values. Quadratic function can have square root cube roots and fraction values.

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Answer:

Step-by-step explanation:

They are different numbers:

0.269 + 50.9 = 51.169

0.26 + 50.9 = 51.16

Answer:

D  At least one player made over 100 runs​

Step-by-step explanation:

At least means that more than one player made over 100 runs. Seeing as there are 4 people scoring a total 500 runs, a player had to make over 100 runs to reach the total of 500 runs collectively

Answer:

It is data outside what you would expect.

Step-by-step explanation:

An example would be if I asked everyone is a class how many dogs they dad living with them.  I would expect to get answers like 0, 1, 2, 3 or 4.  If someone answered 115 that would be be an outlier, it is outside all of the data that I have collected.

Answer:

First angle = 24'

Second angle = 156'

Third angle = 180'

Step-by-step explanation:

Given:

Ratio of circles angle = 2:13:15

Find:

All three angle

Computation:

Sum of all angle from center = 360'

So,

First angle = 360[2/(2+13+15)]

First angle = 360[2/(30)]

First angle = 24'

Second angle = 360[13/(2+13+15)]

Second angle = 360[13/(30)]

Second angle = 156'

Third angle = 360[15/(2+13+15)]

Third angle = 360[15/(30)]

Third angle = 180'

Answer:

D. (x - 9)(x+5)

Step-by-step explanation:

\(x^{2} - 4x - 45\) is your expression, so you have to factor it out. Since from the options available it's clear that the factors of -45 you use are some form of 9 and 5, we can use the process of elimination to figure out which are the correct ones.

First, through FOIL u know that in any factored form the last two terms in each bracket multiply together to make the last term in the expanded form.

So first, look at A. the last two terms are -9 and -5, which = 45 when multiplied together. 45 does not = -45, so it can't be A.

B has 9 and 5. When they're multiplied, they = 45, which does not = -45, so its not B

It can't be C either, because the first term of the first bracket in C is 20, and when multiplied with x it doesn't produce x^2.

Therefore it has to be D. u can check this by multiplying -9 and 5, which = -45, the final term in the expanded form. Also, -9 + 5 = -4, which is the middle term of the expanded form.

The equivalent expression to x² - 4x - 45 is (x - 9)(x + 5), which corresponds to option A.

To factor the quadratic expression x² - 4x - 45, we need to find two binomials that, when multiplied, give us the original expression.

We look for two numbers whose product is -45 (the coefficient of the constant term) and whose sum is -4 (the coefficient of the linear term, -4x). After some exploration, we find that the numbers -9 and 5 satisfy these conditions.

Thus, we can express x² - 4x - 45 as (x - 9)(x + 5). This is because when we multiply the two binomials (x - 9) and (x + 5) using the distributive property, we obtain the original quadratic expression.

This factored form, (x - 9)(x + 5), represents the equivalent expression to x² - 4x - 45.

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Answer:

Its C

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Take point A at ( 4,-1)

We are shifting down 2 and to the right 4

(4-2, -1+4) becomes ( 2,3)

Choice C has A' at ( 2,3)

Answer: 45 copies in 18 minutes

Step-by-step explanation:

i figured it out ;)

The probability of winning for a reasonable wager is 0.91

Given,

A gambler employs a betting approach that will either earn a profit of $1000 or a loss of $10,000.

Let us consider the probability of winning the bet = x

                          The probability of losing the bet = 1 - x

The winning profit = $1000

The loss = $10000

Incase of a fair bet,

⇒ 1000 x = 10000 (1-x)

1000x = 10000 - 10000x

11000x = 10000

x = 10000/11000

x = 0.91

Hence, for a fair bet probability of winning is 0.91

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Answer:  8 days

Step-by-step explanation:

Given, At Sami's Shoe Warehouse, it takes 4 over 5 of a day to complete 1 over 10 of an order of sneakers.

i.e. \(\dfrac{4}{5}\) x  (1 day) = \(\dfrac{1}{10}\) x (an order of sneakers)

Multiply 10 on both the sides , we get

\(\dfrac{4}{5}\times10\) x  (1 day) = \(\dfrac{1}{10}\times10\) x (an order of sneakers)

⇒\(4\times2\) x  (1 day) = an order of sneakers

⇒\(8\) x  (1 day) = an order of sneakers

i.e. Time to complete an order of sneakers = 8 days

Hence, it will take 8 days to complete the entire order of sneakers.

Answer: 8 days total

Step-by-step explanation:

Answer:

a. x = -4

c. x = 9

Step-by-step explanation:

Values of g(x), output values, are plotted on the y-axis, while the corresponding x values, input, of the function are plotted on the x-axis.

We are to determine all possible input values (x-values) that will give us an output value, g(x) = 8.

On the graph, look at the point where y = 8, on the y-axis. When y = 8, we have two possible values of x. They are -4, and 9.

Thus:

g(-4) = 8

g(9) = 8.

The possible input values for which g(x) = 8, are x = -4, and x = 9.

The chi-square test is useful for determining if a nonmonotonic relationship exists between two nominal-scaled variables. the correct answer is if a nonmonotonic relationship exists between two nominal-scaled variables.

The chi-square test determines whether there is a connection or relationship between two things or labels (known as nominal-scaled variables), such as gender or color. When there is no clear trend or pattern in the relationship between the two variables, it is used.

The test compares the actual number of observations in each category to the given number of observations, thinking that the variables have no relationship. If the actual number of observations is not same as what would be expected by chance, the variables may have a significant relationship.

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Answer:

The equation that is graphed is y = one-half cosine (2 x) minus 1.

Answer:

27

Step-by-step explanation:

Answer:

Step-by-step explanation:

To find out - 'e'

Given,

90 % of e = 30

\( = > \frac{90}{100} \times e = 30\)

\( = > e = 30 \times \frac{100}{90} \)

\( = > e = \frac{100}{3} \)

=> e = 33.3333......

=> e = 33.3 (approx. ) (Ans)

Answer:

\(d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)

Step-by-step explanation:

Given: A line is drawn between points \((x_2,x_1)\,,\,(y_2,y_1)\)

To find: distance between the two points

Solution:

A coordinate plane is a two-dimensional plane formed by the intersection of a  y-axis and x-axis. x-axis and y-axis are perpendicular lines that intersect each other at the origin.

Let d denotes distance between the two points \((x_2,x_1)\,,\,(y_2,y_1)\)

Use the formula:

\(d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)

The distance between the two points show on the coordinate plane is D = √[(x₂-x₁)²+(y₂-y₁)²]. Therefore, the correct answer is option C.

The given coordinate points are (x₁, y₁) and (x₂, y₂).

The distance formula which is used to find the distance between two points in a two-dimensional plane is also known as the Euclidean distance formula.

On 2D plane the distance between two points (x₁, y₁) and (x₂, y₂) is

Distance = √[(x₂-x₁)²+(y₂-y₁)²].

Therefore, the correct answer is option C.

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