can somebody help me with this problem in mathematics.

Answer:

4 1x4=4 so 4 is ur answer

Step-by-step explanation:

The scale factor for the square LMNO to L'M'N'O' is k = 1/2.

Remember that for any length L, a dilation of scale factor k gives a new length L' such that:

L' = k*L

Look at line LM, it has a length:

L = √(6^2 + 2^2) = √40

Now line L'M' has a length:

L' = √(1^2 + 3^2) = √10

Then we can see that:

L' = k*L

√10 = k*√40

√10/√40 = k

√(1/4) = k

1/2 = k

The scale factor is 1/2.

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We have the following quadratic equation:

And we have to use the quadratic equation to solve that equation.

1. To find the solutions, we need to start by using the quadratic equation:

2. Identify a, b, and c from the given quadratic equation:

3. Apply the quadratic equation:

4. And now, we can develop it as follows:

Therefore, we finally have two solutions, x = -1, and x = -5.

Then the first step is given by:

Radius = 6 cm

The area of circle is given by:

A = 113.04 cm^2

EXPLANATION:

First we must know what data the exercise gives us; for exmple:

-Tells us that it reads a number of pages (unknown data) each month or per month.

-The exercise asks us, how many pages will have been read after 4 months.

We can see that we first have to find the number of pages in a month and then find the number of pages in 4 months.

The exercise is as follows:

The complete expansion of the expression would give; 60x^3 -  11x^2 - 74x + 24

To expand an expression means that we should be able to obtain the original long expression that was factorized in order to get it. In this case, the expression that we have is  (3x+4)(5x-2)(4x-3). We would now have to carry out the expansion in stages.

1)  (3x+4)(5x-2)

15x^2 - 6x + 20x - 8

2) We can now carry out the next step in the expansion as we multiply the bracket with the last term in the expression;

15x^2 - 6x + 20x - 8(4x-3)

60x^3 - 45x^2 - 24x^2 + 18x + 80x^2 - 60x -32x + 24

We can now collect the like terms;

60x^3 -  45x^2 - 24x^2 + 80x^2 + 18x - 60x - 32x + 24

60x^3 -  11x^2 - 74x + 24

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Percentages

To calculate the X% of a given number N, we proceed as follows:

X * N / 100

We know X=8% of the High School students have their license. There are N=1000 high school students, thus the number of students with their license is:

8 * 1000 / 100 = 80

80 students have their license

Answer: (A)

Step-by-step explanation:

By elimination, none of the other answers choices fit the lines; B, C, and D all have at least one positive slope. Both lines shown in the graph have negative slopes, so both equations have to have a negative x value when simplified, so it's A.

Answer:

x = 3.4

Step-by-step explanation:

18x - 44 = 8x - 10

       +10

18x - 34 = 8x

               -18x

       -34  = -10x

         / 10

               x = 3.4

Proof:

18 x 3.4 = 61.2 - ( 44 ) = 17.2

8 x 3.4 = 27.2 - ( 10 ) = 17.2

Answer:

Given: B is the midpoint of line segment AC.

Segment Additon: AB+BC=AC

Given: AB=5x + 10 and BC=x + 38

Symmetric Property: AB=BC

congruent property: 5x+10=x+38

Subtraction property: 4x+10=38

Subtraction property: 4x=28

Disivion property: x=7

The correct statement regarding Isaiah is that A. His gross pay is $3,000 and net pay is $2,500

Before taxes, benefits, and other payroll deductions are taken out of an employee's paycheck, that amount is known as their gross pay. Net pay, often known as take-home pay, is the amount that is left after all withholdings have been taken into account. Determining the number of pay periods you have throughout the year is the first step in calculating the gross compensation for a salaried employee.

The time range for which you pay your employee is known as a pay period. You must first determine your employee's gross compensation before you can determine their net pay. This is where you should start. The next thing you need to know is what payroll deductions your employee receives.

Since the take-home pay is $2,500, this is the net pay.

In conclusion, the correct option is A.

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Isaiah works at a technology company in the summer and earns

$3000. After federal, state, and Social Security/Medicare taxes are

deducted, his take-home pay is $2,500. Which of the statements

below is CORRECT? *

His gross pay is $3,000 and net pay is $2,500

His gross and net pay are $3,000

His gross and net pay are $2,500

His gross pay is $2,500 and net pay is $3,000

The period of a function is the distance (x) between the repetion of this fuction.

As can be observed in the figure below:

Then, the period is: 7.5 - 1.5 = 6.

Answer: 6.

Answer:

B

The correct answer is B. x= 4/3

The voltage E of the electrical appliance using a power of 1000 watts is 50 Volts.

Power is simply the quantity of energy transferred per unit time. It can be expressed as;

P = E × I

Where E is voltage and I is current.

Given the data in the question;

To determine the voltage of the appliance, plug in the given values into the formula above and solve for E.

P = E × I

1000W = E × 20A

E = 1000 / 20

E = 50V

Therefore, the missing value voltage E is 50 volts.

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[tex]\huge\textsf{Hey there!}[/tex]

[tex]\mathsf{45 = 3(4b - 1)}[/tex]

[tex]\mathsf{3(4b - 1) = 45}[/tex]

[tex]\mathsf{3(4b) + 3(-1) = 45}[/tex]

[tex]\mathsf{12b - 3 = 45}[/tex]

[tex]\large\textsf{ADD 3 to BOTH SIDES}[/tex]

[tex]\mathsf{12b - 3 + 3 = 45 + 3}[/tex]

[tex]\large\textsf{Simplify it}[/tex]

[tex]\mathsf{12b = 45 + 3}[/tex]

[tex]\mathsf{12b = 48}[/tex]

[tex]\large\textsf{DIVIDE 12 to BOTH SIDES}[/tex]

[tex]\mathsf{\dfrac{12b}{12} = \dfrac{48}{12}}[/tex]

[tex]\large\textsf{Simplify it}[/tex]

[tex]\mathsf{b = \dfrac{48}{12}}[/tex]

[tex]\mathsf{b = 4}[/tex]

[tex]\huge\textsf{Therefore, your answer should be: \boxed{\mathsf{b = 4}}}\huge\checkmark[/tex]

[tex]\huge\textsf{Good luck on your assignment \& enjoy your day!}[/tex]

The system of equations has a solution of x = -17, y = -15 and z = 2

Linear equations are equations that have constant average rates of change.

Note that the constant average rates of change can also be regarded as the slope or the gradient

A system of linear equations is a collection of at least two linear equations.

In this case, the system of equations is given as

x - y + z = 0

3x - 2y + 6z =9

-x + y -2z = -2

Add the first and the third equations

So, we have

x - x - y + y + z - 2z = 0 - 2

Evaluate

-z = -2

This gives

z = 2

Make z = 2 in the other equations

So, we have

x - y + 2 = 0

3x - 2y + 12 =9

-x + y - 4 = -2

This gives

x - y = -2

3x - 2y = -21

-x + y = 2

Make y the subject in -x + y = 2

y = x + 2

Substitute y = x + 2 in 3x - 2y = -21

3x - 2(x + 2) = -21

Expand

3x - 2x - 4 = -21

So, we have

x = -17

Recall that y = x + 2

So, we have

y = -17 + 2

Evaluate

y = -15

Hence, the solution for the system of linear equations x - y + z = 0, 3x - 2y + 6z =9 and -x + y -2z = -2 are x = -17, y = -15 and z = 2

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The price of the toy on dollars is 5.22.

Here, we are given that a toy costs 35,000 lndonesian rupiah (Rp).

Further, the conversion rate is-

Rp 1000 = $0.145

Now, if 1000 Rp = $0.145 then 1Rp will be = $0.145/1000

= $0.000145

Thus, we get 1Rp = $0.000145

Now, we need to find how much 36,000 Rp is in dollars.

Since, 1Rp = $0.000145, 36,000 Rp will be = $(0.000145 × 36,000)

= 0.145 × 36

= 145/1000 × 36

36 can be written as- (40 - 4)

= 145 (40-4)/ 1000

= {(145 × 40) - (145 × 4)} / 1000

= (5,800 - 580)/1000

= 5,220/1000

= 5.22

Thus, the price of the toy on dollars is 5.22.

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Since the price paid got 30% discount from the original price, so this price represents 70% of the original price.

Using the variable x to represent the original price, we can write the following equation and solve it for x:

Therefore the original price is $19.

Answer:

(4x - 5) + (3x + 11) = 104 (exterior angle)

7x + 6 = 104

7x = 98

x = 14

• Part A

Let be:

x: The number of minutes Angela plays soccer every day

ygolf

Then, we can write the following system of linear equations

• Part B

To solve this question, we will solve the system of linear equations that we wrote above.

To do this, we can first substitute the value of x from Equation 2 into Equation 1, and then we solve for y:

Therefore, Angela spends 40 minutes playing golf every day.

• Part C

To solve this question, we can replace the value of y into Equation 1 and then solve for x

Therefore, Angela cannot possibly spend 80 minutes playing soccer every day because she actually spends 85 minutes.

Answer:

88

Explanation:

Let us call the number NUMBER, then we know that

The above says that 75% of the number is 66.

Then how do we find the value of NUMBER?

Multiplying both sides by 100/75 gives

Mathematical expressions with the form, where x is the base and n is the exponent, are called powers. In powers, the base is the integer or variable that is continually multiplied, and the exponent designates how many times to multiply the base by itself.

Exponents should be subtracted when dividing powers by the same base, according to the quotient rule. For instance, dividing h(6) by h(2) yields h(6-2) = h(4). A quick and simple technique to make the problem simpler is to subtract the exponents.

Use the Quotient of Powers Rule to reduce the number of terms when splitting like terms with exponents. According to this rule, to determine the solution while dividing terms with the same base, simply remove their exponents. The trick is to only take out exponents with matching bases.

This means that every number raised to the power of zero is one because it is simply the result of no numbers at all, which is the multiplicative identity, or 1.

Hence we made the clear conclusions.

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9) length of the tree is 22.165 meter

10 )  the length of the steel beams is 3.7464 meters

9 ) Given: The angle is 55.2 °

The length of the shadow is 15.5 meter.

To find : the length of the tree

The by using the formula tan θ = perpendicular / base

tan θ = length of the tree/ shadow

thus the length of the tree = length of shadow × tan θ

= 15.5 × tan 55.2

= 15. 5 × 1.43

= 22.165  meter

Thus the length of the tree is 22.165 meter

10) the angle of inclination = 42 °

The height of the slab is 5.6 meters

Thus the length of the steel beams is :

sin 42 ° = perpendicular / hypotenuse

hypotenuse = perpendicular × 0.669

hypotenuse = 5.6 × 0.669

= 3.7464 meters

Thus the length of the steel beams is 3.7464 meters.

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Answer:

You're question is incomplete.Please try to make it more clear

Answer:

The standard form of the expression 25×10 to the power of -3 is 2.5×10⁻⁴

The Index Power Rule:

For the given expression;

25×10 to the power of -3

This can be written as follows;

= 25×10⁻³

To write the expression in standard form, shift the decimal to the  left of the number and add one more power to base 10.

= 2.5×10⁻⁴

Thus, the expression in the standard form becomes  2.5×10⁻⁴.

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SOLUTION:

Step 1:

In this question, we are given the following:

Step 2:

The details of the solution are as follows:

Statement Reason

1. Line FI bisects angle GFH Given

2. Line FG is equivalent to line FH Given

3. Angle GFI is equivalent to angle HFI Definition of angle bisector

4. Line FI is equivalent to line FI Reflexive property of congruence

5. Triangle FHI is equivalent to Triangle FGI Side Angle Side ( SAS)