The access code for a car's security system consists of four digits. The first digit cannot be 5 and the last digit must be even or zero. How many different codes are available?
The number of different codes available is

Answer:

About a 7.3 percent Decrease

Step-by-step explanation:

First, calculate the diffrence between the two numbers:

122-113=9

Then, divide this number by the original number, it being 122, and then multiply that number by 100.

the simplified version of this number to the tenths place is 7.38%

-15x and 15x is the answer

Answer:

-12y and 12y

Step-by-step explanation:

lets do the multiplication to each equation

[tex]\left \{ {{(6x+3y)(-4)=9(-4)} \atop {(5x+4y)3=10(3)}} \right.[/tex]
this is
[tex]\left \{ {{-24x-12y=-36} \atop {15x+12y=30}} \right.[/tex]
if we add the systems notice the values that do cancel are -12y and 12y
and the results of the adition is
[tex]-9x=-6[/tex]
from this
[tex]x=\frac{-6}{-9} =\frac{2}{3}[/tex]
and you can find y from any of the first equation.

[tex]y=3-2x=3-\frac{4}{3} =\frac{5}3}[/tex]

Since HM = NK and ∠FGH = ∠KGH = 45°, we have FG = KH by the hypοtenuse-leg (HL) cοngruence theοrem.

A triangle is geοmetric shape that is fοrmed by the three straight line segments that cοnnect tο fοrm the three sides. These sides enclοse  regiοn in  plane, and  three pοints where  line segments intersect are called vertices.

We are given that HF GK, and ZF and ZK are right angles.

Tο prοve: FG KH

We will use the fοllοwing steps tο prοve the statement:

Draw perpendiculars frοm F and G tο HK, and label the pοints οf intersectiοn as M and N, respectively.

Since ZF is a right angle, we have ∠FMH = 90°.

Similarly, since ZK is a right angle, we have ∠GNK = 90°.

We are alsο given that HF GK, sο triangle HFG is cοngruent tο triangle KFG by the hypοtenuse-leg (HL) cοngruence theοrem.

Therefοre, FH = GK and ∠HFG = ∠KFG.

Since ∠FMH = 90° and FH = GK, we have HM = NK.

Alsο, since ∠HFG = ∠KFG, we have ∠FGH = ∠KGH.

Using angle additiοn pοstulate, we have ∠FGH + ∠KGH = ∠FGK = 90°.

Thus, ∠FGH = ∠KGH = 45°.

Finally, since HM = NK and ∠FGH = ∠KGH = 45°, we have FG = KH by the hypοtenuse-leg (HL) cοngruence theοrem.

Therefοre, FG KH, which cοmpletes the prοοf.

Hence, we have prοved that FG KH.

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Answer:104

Step-by-step explanation:

The linear regression equation for the data-set in this problem is given as follows:

y = -1.04x + 9.57.

To find the regression equation, which is also called called line of best fit or least squares regression equation, we need to insert the points (x,y) in the calculator. These points are usually given in a scatter plot or in a table.

The seven points that represent the data-set for this problem are given as follows:

(1, 10), (2,6), (3, 3), (4,10), (5, 4), (6, 3), (7, 2).

Inserting these points into the linear regression calculator, the linear regression equation for the data-set in this problem is given as follows:

y = -1.04x + 9.57.

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Answer:

Leaving equation Q the same, multiply both sides of equation P by -5.

(y + z = 6) × -5

The correct statement regarding the mean of the data-set when the score of 47 is removed is given as follows:

The mean increased by about 6.

The mean of a data-set is given by the sum of all observations in the data-set divided by the number of observations, which is also called the cardinality of the data-set.

The observations for this problem are given as follows:

100, 95, 47, 83, 87, 89, 89.

There are 7 observations, and their sum is given as follows:

100 + 95 + 47 + 83 + 87 + 89 + 89 = 590.

Hence the mean is of:

590/7 = 84.29.

Removing the observation of 47, there will be 6 observations, with a sum of 590 - 47 = 543, hence the mean is of:

543/6 = 90.5.

Meaning that the mean increases by about 6.

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Answer:

A. x < 0

Step-by-step explanation:

function y is increasing from -8 to 0 as x is increasing from -4 to 0. Therefore the answer is A

Answer: B and C

Step-by-step explanation:

In summary, to find m z1, we need to know the relationship between the rail lines and the angles formed by their intersection.

An equation is a mathematical statement that shows the equality of two expressions. It is composed of two sides, separated by an equals sign (=), indicating that the two sides are equivalent in value. An equation may contain variables, which are unknown values represented by letters, as well as constants, which are known values. Equations are used in many areas of mathematics and science to model and solve problems. For example, the equation y = mx + b is a linear equation that describes the relationship between the variables x and y in a straight line, where m is the slope of the line and b is the y-intercept. Equations can be solved by manipulating the variables and using mathematical operations to isolate the unknown value.

Here,

In order to help Carmen find m z1, we need some additional information about the rail lines and the angles involved.

Assuming that z1 is an angle formed by the intersection of two rail lines, we can use the following steps to find its measure:

Identify the other angles formed by the two rail lines. If the rail lines are perpendicular, then z1 is a right angle and has a measure of 90 degrees. If the rail lines are not perpendicular, then they form two pairs of opposite angles, each with a measure of x degrees.

Use the fact that the sum of the measures of all angles formed by the intersection of two rail lines is 360 degrees. This means that the sum of the measures of the two pairs of opposite angles is 360 degrees.

Solve for x by setting the sum of the measures of the two pairs of opposite angles equal to 360 degrees and then solving for x. Once you have x, you can find the measure of any of the angles formed by the intersection of the rail lines, including z1.

For example, let's say that the two rail lines form two pairs of opposite angles, each with a measure of x degrees. Then, we have:

2x + 2z1 = 360 (since the sum of the measures of all angles formed by the intersection of two rail lines is 360 degrees)

Simplifying this equation, we get:

2z1 = 360 - 2x

z1 = (360 - 2x)/2

Now we need more information to find x, such as the measure of one of the opposite angles or the relationship between x and another angle in the figure. Once we know x, we can substitute it into the equation for z1 to find its measure.

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The missing measure of the angle on the triangle will be 45°.

An angle is the measure of the space between two intersecting lines or planes. It is usually measured in degrees or radians. A degree is a unit of measurement for angles, where a full circle is 360 degrees, while a radian is a unit of measurement for angles defined as the angle subtended at the center of a circle by an arc equal in length to the radius of the circle.

Angles can be acute (less than 90 degrees), right (exactly 90 degrees), obtuse (more than 90 degrees and less than 180 degrees), or straight (exactly 180 degrees).

The missing angle will be:

= 180° - (76° + 59°)

= 180° - 145°

= 35°

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The letter of the 3D figure which matches the statement of the student with regards to the surface areas of the figures are;

The net of this triangular prism covers the smallest total surface area; B

The lateral surface area is 96.6 unit²; C

The total surface area is 111.6 units²; C

The lateral surface area is 85.56 unit²; A

The total surface area is 103.96 unit²; A

The net of this triangular prism covers the largest lateral surface area; C

The surface area of a three dimensional, (3D), figure is the area of the boundary surface that surrounds the space occupied by the figure.

The surface areas and the lateral surface areas of the nets and the prisms are presented as follows;

Figure A;

Surface area = 2×(1/2)×4.6×4 + 3×6.2×4.6 = 103.96

The lateral surface area = 3×6.2×4.6 = 85.56

Figure B;

Surface area = 2×(1/2)×4×3.8 + 2×4.3×6 + 4×6 = 90.8

The lateral surface area = 2×4.3×6 + 4×6 = 75.6

Figure C;

Surface area = 2×(1/2)×5×3 + 5×7 + 3×7 + 5.8×7 = 111.6

The lateral surface area = 5×7 + 3×7 + 5.8×7 = 96.6

Therefore;

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The seismic waves from the earthquake in Caracas were 12589.25 times stronger than typical seismic waves.

Seismic waves are acoustic energy waves that passes through the Earth. It can be brought on by massive landslides, volcanic eruptions, magma movement, earthquakes, and artificial explosions that discharge a lot of low-frequency acoustic energy.

By using formula for, M= log(w/w_0), we can find:

10^M= w/w_0, it means 10^M.w_0, = w

but M=4.1, so 10^4.1 = 12589.25

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Therefore , the solution of the given problem of function comes out to be f(x) = 3x + 1 is the linear function with the specified properties.

Numerous subjects, including mathematics, numbers, and their subsets, as well as building, construction, and both real and fictitious geographic locations, are covered in the mathematics programme. The relationships between various variable elements that all cooperate to create the same outcome are covered in a work. A utility is composed of several unique parts that, when combined, give particular outcomes for each input.

Here,

The slope-intercept form of the linear function f(x) is written as

=>  f(x) = mx + b,

where m is the slope and b is the y-intercept.

We can infer from the listed characteristics that f(0) = 1 and f's slope is 3.

We have the following equation for a line in the point-slope form:

=>  f - 1 = 3(x - 0) (x - 0)

When we simplify this solution, we obtain:

=> f = 3x + 1

Consequently, f(x) = 3x + 1 is the linear function with the specified properties.

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It takes Carlos 2 minutes longer than Ariel to sing the song.

To find out how much longer it takes Carlos to sing the song, we need to find the difference between the time it takes Ariel and Carlos to sing the song.

Time taken by Ariel = 5.92 minutes

Time taken by Carlos = 7.73 minutes

So, we have

Difference = 7.73 - 5.92 = 1.81 minutes

Rounding to the nearest whole number, we get:

Difference = 2 minutes (rounded to the nearest whole number)

Therefore, the time taken is approximately 2 minutes longer

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After answering the presented question, we can conclude that equation Therefore, the solution to the given system of equations is (x, y) = (2, 2).

An equation is a mathematical statement that proves the equality of two expressions connected by the equal symbol '='. 2x - 5 Equals 13, for example. Expressions include 2x-5 and 13. The character '=' joins the two expressions. A mathematical formula with two algebraic expressions on either side of an equal sign (=) is known as an equation. It demonstrates the relationship of equivalence between the left and right formulas. In every formula, LHS = RHS (left side = right side).

[tex]4x + y = 10 ...(1)\\y = 2x - 2 ...(2)\\y = 2x - 2 ...(2)\\y + 2 = 2x ...(2)\\x = (y+2)/2 ...(3)\\4x + y = 10 ...(1)\\4[(y+2)/2] + y = 10 \\[/tex]

[tex]2(y+2) + y = 10 \\3y + 4 = 10\\3y = 6\\y = 2 \\y = 2x - 2 ...(2)\\2 = 2x - 2 \\4 = 2x \\x = 2 \\[/tex]

Therefore, the solution to the given system of equations is (x, y) = (2, 2).

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The number of intersection points is (a) 1 point or 2 points.

Given that

Line AB and circle P lie on the same plane.

And, we have

AP = 6 mm

BP = 8 mm

The intersection points can be 0, 1, or 2.

Since the radius of circle P is 6mm, any intersection point must also be 6mm away from P.

Next, we have the following test cases

Hence, the answer is (A) 1 point or 2 points.

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let's firstly convert the mixed fractions to improper fractions.

[tex]\stackrel{mixed}{1\frac{1}{2}}\implies \cfrac{1\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{3}{2}}~\hfill \stackrel{mixed}{2\frac{1}{4}} \implies \cfrac{2\cdot 4+1}{4} \implies \stackrel{improper}{\cfrac{9}{4}} \\\\[-0.35em] ~\dotfill[/tex]

[tex]\begin{array}{ccll} miles&minutes\\ \cline{1-2} \frac{3}{2}&\frac{9}{4}\\[1em] x&34 \end{array}\implies \cfrac{~~ \frac{3 }{2 } ~~}{x}~~ = ~~\cfrac{~~ \frac{9}{ 4} ~~}{34}\implies \cfrac{3}{2x}=\cfrac{9}{(4)(34)}\implies \cfrac{3}{2x}=\cfrac{9}{136} \\\\\\ (3)(136)=18x\implies \cfrac{(3)(136)}{18}=x\implies \cfrac{68}{3}\implies \stackrel{ miles }{x=22\frac{2}{3}}[/tex]

Step-by-step explanation:

11/2 is equivalent to 21/4 is

equivalent to 9/4

The unit rate will be:

3/2 miles= x

9/4 min 1 min

Now use this unit to find how far the car will travel in 26 minutes

2/3 mile •26 min= 52/3 miles or 17 and 1/3

miles

1 min

Since 1 hour is equal to 60 minutes, we can

multiply the unit rate by 60 to find the distance traveled in 1 hour.

2/3 mile• 60 min = 120/3 = 40 miles

traveled in 1 hour

1 min

Shape P could have been transformed using a translation, rotation, reflection or a combination of these transformations.

Transformation in maths is a way of changing the position, size or shape of a given object. It involves moving the object from one position to another. This can be done using a combination of translation, rotation, reflection and enlargement.

A translation is when a shape is moved in a straight line and all points are moved the same distance in the same direction. A rotation is when a shape is rotated around a fixed point and all points are moved the same angle. A reflection is when a shape is flipped over a line and all points are reversed on the other side of the line.

In the case of Shape P, since one point was invariant, the transformation must have been either a translation, rotation or a combination of both. A translation would have been impossible as all points are moved the same amount and direction, hence, the invariant point would have been moved. A rotation is possible as all points are moved the same angle, and the angle of rotation could be adjusted to keep the invariant point in the same place. A combination of both of these transformations could also have been used to keep one point invariant.

Overall, Shape P could have been transformed using a translation, rotation, reflection or a combination of these transformations. In this case, the transformation must have been either rotation or a combination of both translation and rotation. The angle of rotation or the combination of translation and rotation would have been adjusted to keep the invariant point in the same place.

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We can see that linear function B has a greater rate of change than function A.

The general linear function is written as:

y = a*x +b

Where a is the rate of change.

If we know two points on the linear function, (x₁,y₁) and (x₂, y₂), then the rate of change is given by:

a = (y₂ -y₁)/(x₂ - x₁)

For function A we use the first two on the table (1, 5) and (2, 7)

a = (7 - 5)/(2 - 1) = 2

For the function B we willuse (1, 1) and (2, 4), then:

a = (4 - 1)/(2 - 1) = 3

Function B has a greater rate of change.

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The greatest integer value for x​ is -8

From the question, we have the following parameters that can be used in our computation:

|x| - 5|x + 6 = 0

Express properly

So, we have

|x| - 5|x + 6| = 0

This gives

|x| = 5|x + 6|

When both sides of the equation are compared, we have

x = 5x + 30

So, we have

4x = -30

Divide by 4

x = -7.5

Approximate to an integer

x = -8

Hence, the value of x is -8

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Answer:

d = kw²

Step-by-step explanation:

The equation that expresses the relationship "d varies directly with the square of w" is:

d = kw² (or kw^2 if you prefer to write it that way!)

where k is the constant of proportionality.

Hope this helps! I'm sorry if it's wrong. If you need more help, ask me! :]

Answer:

52 : 39 56 : 42 60 : 45

64 : 48 68 : 51

Step-by-step explanation:

when running a line, in a right-triangle, from the 90° angle perpendicular to its opposite side, we will end up with three similar triangles, one Small, one Medium and a containing Large one.  Check the picture below.

[tex]\cfrac{6}{x}=\cfrac{x}{8}\implies 48=x^2\implies \sqrt{48}=x\implies \sqrt{4^2\cdot 3}=x\implies 4\sqrt{3}=x[/tex]

a. To calculate the gross salary per pay period, we need to divide the yearly salary by the number of pay periods in a year:

Gross salary per pay period = Yearly salary / Number of pay periods per year

Since there are 26 pay periods in a year (bi-weekly paychecks), we have:

Gross salary per pay period = $67,000 / 26 = $2,576.92

Therefore, the DON's gross salary per pay period is $2,576.92.

b. To compute the net salary per pay period, we need to take into account federal and state taxes, Social Security, and Medicare deductions, as well as any other pre-tax or post-tax deductions, such as health insurance premiums or retirement contributions.

Assuming a standard tax withholding rate of 20%, Social Security and Medicare deductions of 7.65%, and health insurance premiums of $200 per pay period, we can calculate the net salary per pay period as follows:

Net salary per pay period = Gross salary per pay period - Taxes - Social Security and Medicare - Health insurance

Net salary per pay period = $2,576.92 - ($2,576.92 x 0.20) - ($2,576.92 x 0.0765) - $200

Net salary per pay period = $2,576.92 - $515.38 - $197.02 - $200

Net salary per pay period = $1,664.52

Therefore, the DON's net salary per pay period is $1,664.52.

Answer (0,0)

Step-by-step explanation:

Method 1)

look at the graph to see where the two lines intersect, which is at (0,0).

Method 2)

 [tex]\frac{4}{3} x[/tex] =  -2x ............................set the 2 equations equal

[tex]\frac{10}{3} x[/tex] = 0.................................set the equation to 0 (by adding 2x to both sides)

x = 0.....................................solve for x (by dividing both sides by [tex]\frac{10}{3}[/tex]

Note: you can use y =  [tex]\frac{4}{3} x[/tex]  OR y = -2x

y= -2x

y = -2(0)...............................plug in the x

y = 0.....................................solve

(x,y)

(0,0)......................................plug in x and y value

The equation which can be use to find the number of fish f in the bucket before Brooke feeds the dolphins is [tex]4 * 3 = f[/tex].

An equation refers to a mathematical statement that is made up of two expressions connected by an equal sign.

Let f be the number of fish in the bucket before Brooke feeds the dolphins. The equation that can be used to find the value of f is: [tex]4 * 3 = f[/tex]

This equation represents the fact that there are 4 dolphins and each dolphin receives 3 fish, so the total number of fish in the bucket must be equal to 4 times 3. Solving this equation, we get:

f = 12

Therefore, there were 12 fish in the bucket before Brooke fed the dolphins.

Full question "Brooke won the raffle at the zoo and gets to feed the dolphins! The dolphin trainer gives Brooke a bucket of fish to divide evenly among 4 dolphins. Each dolphin gets 3 fish. Which equation can you use to find the number of fish f in the bucket before Brooke feeds the dolphins"

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Answer:

The first step is to determine the amount of interest charged for the month of December based on the average daily balance:

Average Daily Balance = $5600

Monthly Interest Rate = 2.5%

Interest Charged for December = Average Daily Balance * Monthly Interest Rate * Number of Days in December

Number of days in December is 31.

Interest Charged for December = $5600 * 0.025 * 31 = $4340.00

The total balance on the credit card on January 1 will be the sum of the unpaid balance at the end of December and the interest charged for December:

Total Balance on January 1 = Unpaid Balance at End of December + Interest Charged for December

Total Balance on January 1 = $6900 + $4340.00

Total Balance on January 1 = $11240.00

Rounded to the nearest cent, the total balance on the next billing date January 1 is $11,240.00.

The nearest cent, the total balance on the next billing date, January 1, is $12640.00.

To calculate the total balance on the next billing date, we need to consider the average daily balance for December, the unpaid balance at the end of December, and the monthly interest rate.

The monthly interest rate is 2.5% of the average daily balance. Let's calculate the interest charged for the month of December:

Interest charged = (2.5/100) * Average daily balance

= (2.5/100) * $5600

= $140

Next, let's calculate the total balance on the next billing date, January 1:

Total balance = Average daily balance + Interest charged + Unpaid balance

= $5600 + $140 + $6900

= $12640

Rounded to the nearest cent, the total balance on the next billing date, January 1, is $12640.00.

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