An electrician has 50 feet of copper wire. On his first job of the day he used 13.5 feet of wire, then he cut the rest of the wire into 4-foot pieces. A. Write an equation that represents the situation in terms of x, the number of 4-foot-long wire pieces. B. How many whole 4-foot pieces of wire does the electrician have? Show your work and explain your reasoning.

On a unit circle, 0 = 60°, hence the terminal point is (,); tan 0 = √3. It rotates symmetrically around the center at all angles.

In the plane, a circle is created by each point that is a specific distance from another point (center). Therefore, it is a curve made up of points that are spaced out from one another in the plane in a fixed manner. It rotates symmetrically around the center at all angles. Every pair of points in the plane of a circle, which is a closed two-dimensional object, are evenly distanced from the "center." Specular symmetry is produced by a line that traverses the circle. It rotates symmetrically around the center at all angles.

given

θ = 30 °

terminal point = cos 30° , sin30°

= (underroot 2 , 1/2 )

tan30° = 1/ underroot 3 = underroot3/3

On a unit circle, 0 = 60°, hence the terminal point is (,); tan 0 = √3. It rotates symmetrically around the center at all angles.

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Step-by-step explanation:

0.22222222222222222222222222

Answer:

  9xy² -6x²y +5x³

Step-by-step explanation:

You want the additive inverse of –9xy² + 6x²y – 5x³.

The additive inverse is the value that gives zero when added to the original. It can be formed by changing the signs of the terms in the sum:

  9xy² -6x²y +5x³

The expression which represents the amount Gabe spent at the mall will be 18.58k + 52.

The amount that Gabe spent if he bought 3 items will be $107.74.

From the information, Gabe goes to the mall. If k is the number of items he bought, the expression 18.58k+30 gives the amount he spent in dollars at one store and he spent 22 dollars at another store.

The expression which represents the amount Gabe spent at the mall will be:

= 18.58k + 30 + 22

= 18.58k + 52

The amount that Gabe spent if he bought 3 items will be:

= 18.58k + 52

= 18.58(3) + 52

= $107.74

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10 is the least 2-digit number having 0 on one's place and 1 on ten's place.

There are just two place values in 2-digit numbers: the units place and the tens place. Every number with more than one digit has various digits, each of which is described by its place value. 2-digit numbers range in value from 10 to 99. In other words, the smallest and largest 2-digit numbers are 10 and 99, respectively. When a number has two digits, it is called a 2-digit number. 2-digit numbers have two digits and range from 10 to 99.

Any number between 1 and 9 can be used as the digit in the tens place. The placement of each digit in a number is known as place value. There is just one place value that matters when discussing 1-digit numbers, and that is the ones place.

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Answer: 4,000 people live in condominiums.

Step-by-step explanation:

First add 55%+25%=80%

Then subtract 100%-80%=20%

Then turn 20% to 0.2.

Last, multiply 0.2x20,000= 4,000

The expression $(4 - 5i) - (-2i - 8) + (-1 + 8i) is simplified to $5i -11

Algebraic expressions are defined as expressions that are  composed of variables, coefficients, factors, constants and terms.

These expressions are likely to consist of some arithmetic operations, such as;

From the information given, we have that;

$(4 - 5i) - (-2i - 8) + (-1 + 8i)

expand the bracket

$4 - 5i + 2i +8 - 1 + 8i

Now, collect like terms

$-5i +2i + 8i +4 +8 - 1

Add or subtract the like terms

$5i -11

Hence, the expression is $5i -11

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Julie is approximately 40.6 ft away from the base of the tower.

Trigonometry is a branch of mathematics that deals with the relationships between the angles and sides of triangles. One of the main uses of trigonometry is to calculate distances in a triangle when the lengths of two sides and the measure of the angle between them are known.

We can calculate this by using the formula:

Distance = (tower height) / (tan(angle of depression))

Distance = (83 ft) / (tan(49))

Distance = 40.6 ft (rounded to the nearest tenth)

Therefore, Julie is approximately 40.6 ft away from the base of the tower.

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The order of operations is a collection of rules that gives the correct sequence of steps for doing a calculation. BIDMAS is an acronym used to tell you the correct order to complete a calculation when there are different operations . It stands for Brackets, Indices , Division, Multiplication, Addition and Subtraction.

Thus solving the expression;

we first solve all the multiplication parts:

7 x 6 - 5 x 4 + 1 x 3

Now addition:

= 42 - 20 + 3

Lastly subtraction:

= 42 - 23

= 19

The amount of neurotransmitter released from the parasympathetic ganglion is acetylcholine.

The parasympathetic nervous system is part of the autonomic nervous system which helps to regulate involuntary bodily functions such as heart rate, digestion and other processes.

The parasympathetic nervous system is responsible for calming the body and restoring it to its resting state. Parasympathetic ganglia are clusters of neurons that receive and transmit nerve signals from the brain to the organs and muscles.

The amount of neurotransmitter released from these ganglia is acetylcholine, which helps to slow the heart rate and promote relaxation.

The parasympathetic nervous system is part of the autonomic nervous system which helps to regulate involuntary bodily functions such as heart rate, digestion and other processes.

The parasympathetic nervous system is responsible for calming the body and restoring it to its resting state. Parasympathetic ganglia are clusters of neurons that receive and transmit  signals from the brain to the organs and muscles.

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Aditi and Kavita had 40 coins in total. the coin share b/w them is

x=25, y=15

Generally, Aditi and Kavita's original coin total is 40.

x+y=40

Aditi gave 10 coins to Kavita.

(x-10)*(y+10)=375

Now solving a system of equations using a calculator

x=25, y=15

x=35, y=5

Since Aditi had fewer than 30 coins when she started.

The correct proportion is

x=25, y=15

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CQ

Aditi and Kavita had 40 coins in total. Aditi gave 10 coins to Kavita. The product of the coins they now have is 375. Aditi had fewer than 30 coins when she started.

How much coin did dey both have

Answer:

7

Step-by-step explanation:

La tasa unitaria de salvamentos por juego es de 7 salvamentos por juego. Esto se puede calcular dividiendo el número total de guardados (35) por el número de juegos (5): 35 guardados / 5 juegos = 7 guardados por juego.

1) Triangle Midsegment Theorem will be used to solve the given problem.

2) The value of x would be 10.

What is Triangle Midsegment Theorem?

A triangle midsegment is a segment that links the midpoints of two triangle sides. A midsegment joining two triangle sides is parallel to the third side and half the length.

1) Triangle Midsegment Theorem will be used to solve the given problem.

2) Here M is the midpoint of AB, and P is the midpoint of BC. So, PM is a midsegment.

Therefore by the Triangle Midsegment Theorem,

      [tex]PM=\frac{1}{2} AC\\\\(x+5)=\frac{1}{2} 3x\\\\x=10[/tex]

 Hence, The value of x would be 10.

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The length of the segment is 10,12.5 , 15,.. when x is from x = 0 to x = 16.

What is algebraic expression ?

Algebraic expression can be defined as the combination of variables and constants .

From the given expression ,

y = 2.5 x + 10

So, we have to find the length of line segment from x = 0 to x = 16.

so when x = 0 ,

y = 0+10

y = 10

and when x=1

y = 2.5*1+10

y=12.5

and similarly

when x = 2

y = 2.5* 2 + 10

y = 15

So, like this the sequence will be goin on y = 10 , 12.5 , 15 , 17.5 and etc .

Hence, The length of the segment is 10,12.5 , 15,.. when x is from x = 0 to x = 16.

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Answer: [tex]x-\frac{x}{9}[/tex]

Step-by-step explanation:

1) quotient is the answer of a division problem

with that in mind and letting "a number" = x . . .

"The quotient of a number and nine..." would be [tex]\frac{x}{9}\\[/tex]

2) "is less than" always means you but the previous statement BEHIND . . .

[tex]x-\frac{x}{9}[/tex]

The difference between the greatest 6-digit and smallest 6-digit numbers is 899999.

The aim is to find the smallest and largest 6-digit numbers, and then we need to find how many numbers are between these two values.

Let's start by finding the smallest 6-digit number.

We know that 0 is the smallest digit that can not be used in the highest place value, so we will consider the next smallest digit; that is, 1 and 1 can be used in the highest place value.

Thus, we can create the required 6-digit smallest number with 0 and 1.

Hence, the smallest 6-digit number is 100000.

Now, we will discover the largest 6-digit number.

As we know, the largest digit is 9, which can be used anywhere. So, we will form the largest 6-digit number with the digit 9.

Thus, the largest 6-digit number is 999999.

Next, we need to find the difference between these two values.

So, we can determine the difference between the smallest 6-digit number and the largest 6-digit number by subtracting the smallest from the largest.

Thus, we get,

⇒999999−100000

⇒899999

Hence, 899999 is the difference between the smallest 6-digit and the largest 6-digit numbers.

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There was 1200 men and 800 women at the funfair in the morning

An equation consists of numbers and variables linked together by mathematical operations to form an expression.

Let x represent the number of men and y represent the number of women in the morning.

There are 400 more men than women at a funfair in the morning. Hence:

x = y + 400

x - y = 400     (1)

In the afternoon 2/5 of the men and 1/4 of the women left the funfair. hence:

number of men remaining = x - (2/5)x = (3/5)x

number of women remaining = y - (1/4)y = (3/4)y

There were 120 more men than women remaining at the funfair. therefore:

(3/5)x - (3/4)y = 120     (2)

From both equations:

x = 1200, y = 800

There was 1200 men in the morning

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There are seven types of fractions.

We know that the fraction is used to represent the portion or part of the whole thing.

The fraction has two parts: numerator and denominator.

The top part of fraction is numerator and the bottom part is denominator.

consider a fraction 1/8.

Here, numerator is 1, denominator is 8

When certain thing is divided into 8 equal parts then each part of is represented by fraction1/8

The types of fractions are:

1) Proper fraction -  the numerator is always less than the denominator

2) Unit Fractions - the numerator of fraction is always 1

3) Improper fraction -  the numerator is greater than the denominator

4) Mixed fraction - it is a combination of a natural number and fraction

5) Like fractions - the fractions have the same denominators

6) Unlike fractions - the fractions have the different denominators

7) Equivalent fractions - the fractions have the same value when simplified.

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Answer:

210

Step-by-step explanation:

70

14 booths

ratio = 70/14 =5

42 booths

by the same ratio = 42*5 = 210

663.

i found out what 35% of 1020 is and then subtracted that by 1020.

Answer: A

Step-by-step explanation:

when you have a number to a negative power, putting it as a fraction under 1 will turn the negative power positive

To calculate my grade in class 10 divide your total points by the total points possible.

Total points earned divided by total points possible

The maximum amount of points you may have obtained in the course is referred to as total points possible.

The total number of available points in a class with 50 participation points, 50 homework points, 100 essay points, and 200 test points is 400. If you received 330 points in this class, divide that number by 400 to get a quotient of 0.825, This is equivalent to an 82.5% grade, or a low B.

Divide the total by the number of entries to get a percentage. Divide the total by 30, for instance, if you have % grades for 30 activities. Your final grade is expressed as a percentage by the quotient.

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For each 45-45-90 triangle, the period of the hypotenuse equals the length of the leg expanded via the square root of 2. That is the 45-45-90 Triangle Theorem.

A triangle is a polygon with three edges and 3 vertices. The terminology for categorizing triangles is greater than thousand years vintage, having been described at the very first web page of Euclid's elements.

In Euclidean geometry, any 3 elements, at the same time as non-collinear, determine a very precise triangle and simultaneously, a unique plane (i.e. a -dimensional Euclidean area). In special words, there's exceptional one plane that includes that triangle, and each triangle is contained in some plane. If the complete geometry is best the Euclidean plane, there is the fine one aircraft and all triangles are contained in it; however, in better-dimensional Euclidean areas, this isn't actual. this text is prepared triangles in Euclidean geometry, and specifically, the Euclidean plane, besides in which otherwise said.

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Answer:

They are perpendicular!

Step-by-step explanation:

Get 7x-3y=-21 into y=mx+b format.

7x-3y=-21           Bring 7x to the other side

-3y=7x-21          Divide -3 by both sides, it cancels out on the y's side.

y=-7/3x+7       Two negatives equal a positive, that it why 7 is positive.

y=-7/3x+7 is the line, the other is y=-3/7x+5

The slope of this line is -7/3 , the slope of the given line is -3/7.

Lines are perpendicular if the slopes are opposite reciprocals, such as this.

So, while they intercept at different points on the y-axis, they will intersect at some point! This makes them perpendicular.

The product of numbers , 3× 3×3×3 is equals to the eighty-one.

In mathematics, a product is a number or result that is obtained by multiplying two or more numbers together. So, 12 is the product of 3 and 4. For example product of 5 and 4 is represented by 5 × 4 = 20 , it is a multiplication expression. A multiplication expression has three parts, a multiplier ( i.e., 4) , a multiplicand ( i.e., 5), and the product ( i.e., 20). We have, a multiplication expression as 3×3×3×3. We can rewrite it in form 3¹× 3¹ ×3¹× 3¹ = 3¹⁺¹⁺¹⁺¹ = 3⁴ , it is an exponential form number. Therefore, results is equals to 81. So, the required product value is 81.

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Answer:

Step-by-step explanation:

a+b=7 and ab= 6 find a^2+b^2

( a + b )² = a² + b² + 2ab =

7² = a² + b² + 2 × 6 =

49 = a² + b² + 12 =

a² + b² = 49 - 12 =

a² + b² = 37

Step-by-step explanation:

answer is 567

You can draw a 100 degree angle with the help of Protractor.

A degree is the name given to the mathematical unit of measurement for an angle. A protractor is a device used to determine the degree of an angle. Angles can be measured at different angles with different degrees, such as 30°, 45°, 60°, and so on. A complete circle rotates at 360°.

Each of the 360 equal segments that make up a rotation is referred to as a degree. We use a circle ° to represent a degree. 180°, for instance, denotes 180 degrees. An angle in degrees is an angle whose measure is expressed in degrees.

Follow the given steps to construct a 100-degree angle with the help of a protractor.

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Different types of multiplication method is given by :

a. Addition method

b. Vertical method

c. Box method

d. Partial multiplication method

As given in the question,

Different types of the multiplication method are as follow :

a. Addition method :

In addition method if 4 × 3 it means add 4 three times.

4 + 4 + 4 = 12

b. Vertical method :

It is traditional way of multiplying the given numbers . Example : 12 × 4

1 2

×4

48

c. Box method :

In this box was formed as per the given numbers . Example 42 × 13

           10          3

40     400         120

2       20           6

Add : 400 + 120 + 20 + 6 = 546

d. Partial multiplication method :

This method is based on distributive property to make the calculation easy.

45 × 6

= ( 40 + 5 ) × 6

= 40 × 6 + 5 × 6

= 240 + 30

= 270

Therefore, the different types of multiplication methods are:

a. Addition method

b. Vertical method

c. Box method

d. Partial multiplication method

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Answer:

24 inches.

Step-by-step explanation:

In order for a triangle to be obtuse, one of its angles must be greater than 90 degrees. In a right triangle, the angle opposite the hypotenuse is always 90 degrees, so in order for the triangle to be obtuse, the hypotenuse must be the longest side.

To find the lowest whole number side length in inches that would ensure that the triangle is obtuse, we can use the Pythagorean theorem. The Pythagorean theorem states that the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides.

a^2 + b^2 < c^2

If we take the base 48cm and convert it to inches, 48cm = 48*0.393701 = 18.897638 inches

So the base is 18.897638 inches.

Now we have to find the lowest whole number side length of c so that:

18.897638^2 + b^2 < c^2

358.565744 + b^2 < c^2

We can see that the lowest whole number of c is 24 inches.

So, the lowest whole number side length in inches that would ensure that the triangle is obtuse is 24 inches.