I need some help with this!​

Answer:

z = 1/4

Step-by-step explanation:

See attached image

Answer:

z = 5

Step-by-step explanation:

simplify

5/(z-25) first

turning it into

((0 - 3/z) + 7/4z) - 5/(z - 25) = 0

then simplify 7/4z

((0 - 3/z) + 7/4z) - 5/(z-25) = 0

when the fractions denominator is 0 then the numerator must be 0

turning the equation into

-25  *  (z - 5)  = 0

solve

-25   =  0

something that is not zero cannot equal zero.

z - 5 = 0

5 - 5 = 0

z = 5

hope this helps:)

Answer:

1280

Step-by-step explanation:

I think it is 1280 because 20*16*8/2=1280. I am not 100% sure.

(a). The graph of y = -f(x) is shown in the image below.

(b). The graph of y = g(-x) is shown in the image below.

By reflecting the parent absolute value function g(x) = |x + 2| - 4 over the x-axis, the transformed absolute value function can be written as follows;

y = -f(x)

y = -|x + 2| - 4

Part b.

In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical equation (formula):

y - y₁ = m(x - x₁)

Where:

First of all, we would determine the slope of this line;

Slope (m) = rise/run

Slope (m) = -2/4

Slope (m) = -1/2

At data point (0, 5) and a slope of -1/2, a linear equation for this line can be calculated by using the point-slope form as follows:

y - y₁ = m(x - x₁)

y - 5 = -1/2(x - 0)

g(x) = -x/2 + 5, -4 ≤ x ≤ 4.

y = g(-x)

y = x/2 + 5, -4 ≤ x ≤ 4.

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The meal cost is $86

its 15% is:

$86 x 0.15 = $12.9

then the tip was $12.9. Then, the total bill would be:

$86 + $12.9 = $98.9

that is the total bill was $98.9

Answer:

$230 dollars per hours

Step-by-step explanation:

1) Just divide 920 with 4

You will get 230.

Hope this helps!

Answer:

The company charged $500 for its services,and Mia gives the movers a 16% tip. Now, we can add the tip amount to the cost of the service to find the total amount Mia paid: Total amount = Cost of service + Tip amount = $500 + $80 = $580

Step-by-step explanation:

The largest size of a team according to the task content is; 20 kids.

It follows from the task content that the population is; 20 students in Mrs. Tanya's class and 24 kids in Mrs. Olga's class.

However, since, the team forming condition states that students be placed on teams of equal size with students from only their own class.

It therefore follows that the largest size of a team is 20 as only 20 students are in Mrs. Tanya's class hence leaving 4 kids in Mrs. Olga's class without a team.

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Yes, there is a difference in the shapes of the displacement-time graphs for uniform acceleration towards the positive direction, uniform acceleration towards the negative direction, uniform deceleration towards the positive direction, and uniform deceleration towards the negative direction.

Uniform acceleration towards the positive direction:

In this case, the object's velocity increases in the positive direction over time. The displacement-time graph will have a concave-upward shape, forming a curve that starts with a small slope and gradually becomes steeper as time progresses.

Uniform acceleration towards the negative direction:

Here, the object's velocity increases in the negative direction, meaning it accelerates in the opposite direction to its positive direction.

The displacement-time graph will have a concave-downward shape, forming a curve that starts with a steep slope and gradually becomes less steep as time progresses.

Uniform deceleration towards the positive direction:

In this scenario, the object's velocity decreases in the positive direction, but it still moves towards the positive direction.

The displacement-time graph will show a curve with a decreasing slope, forming a concave-downward shape, indicating that the object is slowing down.

Uniform deceleration towards the negative direction:

Here, the object's velocity decreases in the negative direction, opposing its initial direction.

The displacement-time graph will have a curve with a decreasing slope, forming a concave-upward shape, indicating that the object is slowing down but still moving in the negative direction.

In summary, the shapes of the displacement-time graphs differ based on the direction and type of acceleration (positive or negative) and whether the object is undergoing uniform acceleration or uniform deceleration. These differences can be observed through the concavity and slope of the graphs.

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Answer:

f(x) = -5/9x - 11/9

Step-by-step explanation:

Consider f(x) = y

so if x = -4 => y = 1 and x = 5 => y = -4

so (-4,1) and (5,-4) should be on the same linear equation

Slope m = (y2 - y1)/(x2 - x1)

m = (-4 - 1)/(5 -  -4) = (-5)/(9) = -5/9

y = mx + b

given m = -5/9, x = -4, y = 1

1 = -5/9(-4) + b

b = 1 - 20/9

b = 9/9 - 20/9 = -11/9

so y = -5/9x - 11/9

or f(x) = -5/9x - 11/9

Answer:

La respuesta es la que dice 0.4

Step-by-step explanation:

Por que si cuentas desde el 0 cuentas 1 2 3 4 entonces es 0.4 espero haberte ayudado coronita plis :(

Answer:

20

Step-by-step explanation:

percentage error = predictions - actual ÷actual × 100

error

\( \frac{82 - 52 \\ }{52} \times 100\)

=

20

Answer:

1/3

Step-by-step explanation:

2 - 1 is 1

Denominator stays the same

Answer:

1/3

Step-by-step explanation:

when adding and subtracting fractions you need to make sure there is a common denominator (same number on the bottom of the fractions). luckily these fractions already have that so you just add them! when they have a common denominator the number stays the same. so 3+3 in this equals 3 lol

2+(-1) = 1

Answer:

6.8

Step-by-step explanation:

27 / 4 = 6.75, which rounded to the nearest tenth, is 6.8.

Answer:

b

Step-by-step explanation:

because

Answer:254 days

Joanne and Ed Greenwood built a new barn with an attached arena. To finance the loan, they paid $1,326 interest on $47,600 at 4%. What was the time, using exact interest? (Do not round intermediate calculations. Round up your answer to the nearest day.)

Step-by-step explanation

Note that

Interest is represented by I=1326

The principal is represented by P=47,600

Rate is R =4%

And Time is year

Interest is calculated using the formulae,

I =PRT/100

From the above formulae, time can be calculated as

T=100I/PR

T= 100×1326/(47600×4)

T= 132600/190400

T= 0.6964 years

To convert to days, multiply by 365(since those no of days make a year)

T= 0.6964×365=254 days

This was approximated to the nearest day

Answer is 254 days

Answer:

don't know which question?

Step-by-step explanation:

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Answer:

Throughout history, we see examples of terrible abuses against women and children, from the 1.1 million children killed during the Holocaust to the many women and children raped or killed during the Rwandan Genocide.

Answer:

the probability that it will choose a human character is 3/7 because there are 3 characters and 7 total including the animal and human combined.

Answer:

The independent variable is "x."

The dependent variable is "y."

Step-by-step explanation:

An independent variable is a variable that does not depend on an event.  It is independent of another variable.  It does not change as a result of another variable.  It remains constant as it is controlled.  It is used to measure the dependent variable.

A dependent variable varies.  It depends on the independent variable for its outcome.  It can yield various results depending on how the independent variable is changed.  "y" in our example will change its value because of the value placed on "x."  The dependent variable is the variable that is being measured or tested in an experiment.  For example, the sales revenue of goods is a dependent variable of another independent variable like price and a constant (quantity).

Answer:

6

Step-by-step explanation:

(X,Y)

Hello!

\(\sf the~ fourth ~number ~=~ x\\\\\\\Large \underline{\textbf{Equation:}}\\\\\\\dfrac{5+7+7+x}{4} = 7\\\\\\\Large \underline{\textbf{Solve the equation:}}\\\\\\\dfrac{5+7+7+x}{4} = 7\\\\\\\dfrac{19+x}{4} = 7\\\\\\\dfrac{19+x}{4} \times~4~= ~7~\times~4\\\\\\19+x~= ~28\\\\\\x = 28 - 19\\\\\boxed{ \textbf{\sf x = 9}}\)

Answer:

Step-by-step explanation:

According to the information provided his final score was -6 or six under par. Without knowing what par is a numerical value can’t be provided.

The value of angle S and angle R is 95⁰ and 110⁰ respectively.

The value of angle S and angle R is calculated as follows;

11y + 7y = 180 (opposite angles of cyclic quadrilateral are supplementary)

18y = 180

y = 180/18

y = 10

(3x - 5) + (3x + 5) = 180 (opposite angles of cyclic quadrilateral are supplementary)

6x = 180

x = 180/6

x = 30

Angle S = 3x + 5

= 3(30) + 5

= 95⁰

Angle R = 11y

= 11 x 10

= 110⁰

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Answer: 645.5

Step-by-step explanation:

\(\displaystyle\\6^4\div\frac{1}{4} (\sqrt{15-9-2} )^3-2\frac{1}{2}= \\\\6*6*6*6-\frac{1}{4} (\sqrt{4} )^3-2.5=\\\\1296\div\frac{1}{4}(2^3 )-2.5=\\\\1296\div\frac{1}{4} (2*2*2)-2.5=\\\\1296\div\frac{8}{4} -2.5=\\\\1296\div2-2.5=\\\\648-2,5=\\\\645.5\)

Answer:

I think 3lb is greater

Step-by-step explanation:

Answer:

To convert euros to pounds, we have to multiply the amount in euros by the exchange rate. So, the sunglasses cost 90 * 0.875 = 78.75 pounds.

To use a suitable approximation, we can round the exchange rate to the nearest hundredth, which is 0.88. This makes the calculation easier and gives a close estimate of the actual value.

Using the rounded exchange rate, the sunglasses cost 90 * 0.88 = 79.2 pounds.

We can see that both the exact and the approximate values are greater than 70 pounds, so Elyas is wrong. The sunglasses cost more than 70 pounds

Step-by-step explanation:

Answer:

30-6x=12

Step-by-step explanation:

30 (was the original)-6(the amount of coffee)x(the price of each coffee)=12(the remaining amount after those 6 cups)

hope this helps!!

Answer:

36666.66 units

Step-by-step explanation:

Let the cost of computer 1 is 3x and that of 2 is 2x.

Cost of first computer = 3x

55000 = 3x

x = 18333.33

Cost of second computer = 2x

= 2(18333.33)

= 36666.66

Henc, the cost of the second computer is 36666.66 units.

This question is based on the concept of statistics. Hence, the correct option is  (c) The mean of all sample proportions of those who make a donation from all random samples of 100 people contacted by phone is 0.05.

A national charity contacted 100 randomly selected people by phone, and 7 percent of those contacted made a donation to the charity. The population proportion p=0.05. For samples of size 100.

According to the question of statistics,

Mean of  sampling distribution of the sample proportion = p (Population proportion.)

It is given that, the population proportion of those who make donation when contacted by phone is known to be p=0.05.

Thus, Mean = p = 0.05

Hence, the correct option is  (c) The mean of all sample proportions of those who make a donation from all random samples of 100 people contacted by phone is 0.05.

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