Please help correct answers only

If a function is onto, then its domain can be a set of all non negative real numbers if the function is defined as y = √ x.

It is not necessary that function that is onto should have the domain as non negative real numbers only.
It can also have negative real numbers in its domain.

If the function is of the form:

y = √ x

Then the function will have a domain that is non negative real numbers.

But if function is of the form:

y = x²

Then it can have the domain as all real numbers.

Therefore, we get that, if a function is onto, then its domain can be a set of all non negative real numbers if the function is defined as y = √ x.

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The right response is Perimeter, x - 2y = 9.

The parameters listed in the question are:

A rectangle's perimeter is equal to 6 x – 2, its length to 2 x + 4, and its width to 2 y + 4.

The perimeter is calculated using the following formula: 2(L) + 2 (W)

6x - 2 = 2(2x + 4) + 2(2y +4) = 4x + 8 + 4y + 8

The result is: x - 2y = 9 and 2x - 4y = 18.

Consequently, the right response is x - 2y = 9.

The sum of a polygon's sides is what is referred to as its perimeter. For the perimeter calculation, the shape must be closed. And the polygonal shapes are either one- or two-dimensional.

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A circle is a round-shaped figure that has no corners or edges. If a circular mosaic has radius 3 meters then the area is 28.26 square meters.

A circle is a round-shaped figure that has no corners or edges. In geometry, a circle can be defined as a closed, two-dimensional curved shape.

Given that a circular mosaic has radius 3 meters.

We need to find the area of circular mosaic.

Area of circle=πr²

Here r=3

π=3.142

Substitute the values of pi and r in Area formula

Area =3.142*3²

=3.142*9

=28.26

Therefore area of circular mosaic is 28.26 square meters.

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There are 496 black sedans in the parking lot and 640 non-black sedans in the parking lot.  The ratio of non-black sedans to black sedans is

40 : 31

Define Ratio ?

the quantitative relation between two amounts showing the number of times one value contains or is contained within the other.

There are 496 black sedans in the parking lot and 640 non-black sedans in the parking lot.

what is the ratio of non-black sedans to black sedans

divide by 2 , both the terms

640 : 496

320 : 248

160 : 124

80 : 62

40 : 31

Hence , There are 496 black sedans in the parking lot and 640 non-black sedans in the parking lot. Then the ratio of non-black sedans to black sedans is 40 : 31

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The total capacity of pool in gallons is 1625.

Let us assume the water in the pool be x liters. Forming the equation according as per the statement in question -

x + 300 = 80% of total volume - Equation 1

Forming the equation according to second statement -

30% × x = 300

30/100 × x = 300 - Equation 2

Finding the initial volume of water using equation 2-

x = 300×100/30

Cancelling zero and performing division and multiplication to find the initial volume of water

x = 1000 gallons

Now finding the total volume or capacity of pool by keeping the value of x in first equation -

1000 + 300 = 80/100 × total volume

Total volume = 1300×100/80

Performing multiplication and division to find the total capacity of pool

Total capacity of pool = 1625 gallons

Hence, the total capacity of pool in gallons is 1625.

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It would take 16 days for the number of magical coins to exceed 50,000.

An equation is an expression that shows the relationship between two or more numbers and variables.

Let y represent the number of magical coins available after x days. this can be represented by:

y = 1(2)ˣ

To exceed 50000 coins:

50000 = 1(2)ˣ

x = 15.6

It would take 16 days for the number of magical coins to exceed 50,000.

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After solving, the factors of equation 4x²+17x+15 are:

So,

Given the equation: 4x²+17x+15

Then,

Factors are: (x+3) and (4x+5)

Therefore, after solving, the factors of equation 4x²+17x+15 are:

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Using the together rate, it will take more 3.45 days to complete the work.

The together rate is given by the sum of each separate rate.

For this problem, the rates are given as follows:

Hence the amount completed in 2 days is:

2 x (0.1 + 0.0833) = 0.3666.

The amount it would take them to complete 100% of the project working together is found by the together rate as follows:

[tex]\frac{1}{x} = \frac{1}{10} + \frac{1}{12}[/tex]

[tex]\frac{1}{x} = \frac{6 + 5}{60}[/tex]

x = 60/11

x = 5.45 days.

The time it would take to do the remaining 100 - 36.66 = 63.34% of the project is:

0.6334 x 5.45 = 3.45 days.

It will take more 3.45 days to complete the work.

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The perimeter of the polygon is 232 units

From the question, we are to determine the perimeter of the regular polygon

From the diagram,

One of the polygon's side length is (4/3)x - 1/3

and another side length is x + 7

Since the figure is a regular polygon, we can write that

(4/3)x - 1/3 = x + 7

Now, solve for x

(4/3)x - 1/3 = x + 7

Multiply through by 3

4x - 1 = 3x + 21

4x - 3x = 21 + 1

x = 22

One of the polygon's side length is x + 7

∴ One side length = 22 + 7

One side length = 29

Since the polygon has 8 sides,

The perimeter of the polygon will be

8 × 29

= 232 units

Hence, the perimeter of the polygon is 232 units

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Answer:

If you are just combining like terms then the answer is just 4x + 2y

Hope this helps :)

The length of the actual hotdog is 15 cm

The graph that completes the question is added as an attachment

The length of the hotdog in the figure is given as

Length = 9 units

The scale is given as

Scale: 6 units = 10 cm

So, we have

6 * 9 units = 10 * 9 cm

Divide both sides by 6

So, we have

9 units = 15 cm

Substitute 9 units = 15 cm in Length = 9 units

Length = 15 cm

Hence, the length of the actual hotdog is 15 cm

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The required fill in the blanks is  110° and 360°.

In Plane Geometry, a figure which is formed by two rays or lines that shares a common endpoint is called an angle and corner whether constituting a projecting part or a partially enclosed space.

Given:

The figure shows that to find the angle.

According to given question we have

The first answer of the figure is 110°.

Obtuse angle is more than 90° and less than 180°.

The second answer of the figure is 360°.

A full angle, also called a complete angle, round angle, or perigon, is an angle equal to radians.

Therefore, the required fill in the blanks is  110° and 360°.

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Answer:

A and c

Step-by-step explanation:

Answer:

The slope of the function is 3

Step-by-step explanation:

To find the slope

*This method works for any other two other points and the work is in the attachment above*

yes, it is a good deal as long as you use the card before a year.

Let's see how much you will save if you pay the $150.

If you want 6 hair cuts, you need to pay $30 6 times, so the total cost will be:

C = $30*6 = $180

If instead, you prepay $150, then you get the 6 cuts only for $150, saving a total of $30 (but the downpayment is 5 times larger than in the other case), but only if you plan to use the punch card for the other cut in the year, if you don't then this option does not make sense.

So, yes, it is a good deal as long as you use the card before a year.

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Answer:

Step-by-step explanation:

In order to cancel the coefficient of P you have to divide both sides by the coefficient not add the coefficient to both sides.

-2/3p = 4

-2/3p / -2/3 = 4 / -2/3    (Multiply both sides by -2/3 to isolate p)

p = 4 / 2/3     ([tex]\frac{4}{1} (-\frac{2}{3} ) = -\frac{8}{3}[/tex])(keep change reciprocate)

p = -8/3

Answer:

The equation has infinitely many solutions.

Step-by-step explanation:

6(2y + 6) = 4(9+3y)

2y + 36 = 36 + 12y     ---->   should be 12y + 36 = 36 + 12y

12y = 12y correct

0 = 0  correct

The equation has no solution.   --->   should read "The equation has infinitely many solutions."​

The required solution of the given system of equation is y=2-9x and y=x/2-1.

An equation is a mathematical statement that is made up of two expressions connected by an equal sign. Equation, statement of equality between two expressions consisting of variables and/or numbers.

Given:

The is given system of equation

2-9x=x/2-1

According to given question we have

The equation is

2-9x=x/2-1

We have to split into different system of equation to find the solution of the problem we have

So,

y=2-9x

and

y=x/2-1

Therefore, the required solution of the given system of equation is y=2-9x and y=x/2-1.

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The result of simplifying the expression (x²/x⁻¹¹)¹/₃ using the exponent rules is [tex]\sqrt[3]{}[/tex](x¹³)

To solve this exercise we have to resolve algebraic operations following the exponent rules.

(x²/x⁻¹¹)¹/₃

Using the quotient rule that indicates that: the exponent result will be the subtraction of these exponents, we have:

(x⁽²⁻⁽⁻¹¹⁾)¹/₃

(x⁽²⁺¹¹⁾)¹/₃

(x¹³)¹/₃

Using the power of a power rule that indicates that: the exponent result will be the multiplication of these powers, we have:

x⁽¹³*¹/₃⁾

x⁽¹³/₃⁾

As we have a fractional exponent, you must convert the exponent to root:

[tex]\sqrt[3]{}[/tex](x¹³)

In mathematics an exponent is the number of time that a number, called (base) is multiplied by itself. It is also called, power or index.

Example: 3² = 3*3 = 9

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Based on the product expression, the estimate of the product expression 3.14 x 7 is 22

Expressions are mathematical statements that are represented by variables, coefficients and operators

Rational expressions are expressions that are represented by the quotient of two polynomials or radicals.

This means that, a rational expression is represented by a fraction whose numerator and denominator are polynomials or radicals

The expression is given as

3.14 x 7

Rewrite 3.14 as  a rational expression

So, we have

3.14 x 7 = 314/100 x 7

Evaluate the product of 314 and 7

So, we have

3.14 x 7 = 2198/100

Evaluate the quotient of 2198 and 100

So, we have

3.14 x 7 = 21.98

Approximate the above expression

So, we have

3.14 x 7 = 22

Hence, the estimate of the product expression 3.14 x 7 is 22

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Answer:

Step-by-step explanation:

8.2

Answer: 8.2

Step-by-step explanation:

sqrt(67) is more than sqrt(64) which is 8, but far from sqrt( 81) which is 9. It is less than half the disnatce between the two and therefore is less than 8.5.

Just put it in a calculator.....

Answer:

The population of a species that grows exponentially over time can be modeled by P(t)=Pe^(kt), where P(t) is the population after time t, P is the original population when t=0, and k is the growth constant.

Step-by-step explanation:

this is from my science

i hope it helped!!!!!!

Answer:

A

Step-by-step explanation:

we need to find what they equal so we put them as equations against each other

If Henry and Emma want to buy a total of 0.5 yds of fabric and the fabric costs $8.72 per yard then the amount each will pay if they want to split the cost evenly is equal to $2.18.

The amount Henry and Emma will have to pay if they want to split the cost can be calculated by using division.

First, we calculate the cost of 0.5 yards of fabric.

1 yard of fabric cost = $8.72

0.5 yards of fabric cost = x

Here x is the cost of 0.5 yards of fabric

8.72 × 0.5 = x

x = $4.36

As the cost of 0.5 yards of fabric is calculated to be $4.36, the amount each will pay if they want to split the cost evenly can be found by dividing the cost of 0.5 yards by 2.

cost of 0.5 yards of fabric / 2 = 4.36 / 2 = $2.18.

Hence each one of them will pay $2.18 if they want to split the cost evenly.

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The given values f(x) / g(x) =2 x+5 / x²-3 x+2

Given: f(x)=2 x+5 and g(x)=x²-3 x+2

f(x) / g(x) =2 x+5 / x²-3 x+2

The function operation of f(x) / g(x) =2 x+5 / x²-3 x+2

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The solution of the given Inequality i.e. -3<2x+3≤5 is x > -3 and x ≤1 (option B).

Inequality:

When the symbols ">", "<", "≤", or "≥" are used to connect two real numbers or algebraic expressions, that relationship is known as an Inequality.

Here the given Inequality is -3<2x+3≤5

⇒ -3<2x+3≤5

⇒-3-3 < 2x+3-3 ≤ 5-3 { add -3 on both the sides }

⇒-6 < 2x ≤ 2

⇒-3 < x ≤ 1

⇒-3 < x and  x ≤ 1

⇒ x > -3 and x ≤1

Therefore,The solution of the given Inequality i.e. -3<2x+3≤5 is x > -3 and x ≤1 (option B).

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