help its easy im just to lazy :)

Step-by-step explanation:

Let the width of the garden be b and its length is 9 feet less than 3 times the width.

Length = 3b-9 ...(1)

The perimeter of the garden = 63

We need to find the system of equations that represents is the dimensions of the rectangular garden.

Perimeter = 2(l+b)

63 = 2(3b-9+b)  [from equation (1)]

31.5 = (3b-9+b)

31.5 = (4b-9)

31.5+9 = 4b.....(2)

b = 10.12

Hence, the equations are showsn in equation (1) and (2).

Answer:

When the angle becomes zero, then the base becomes 0, and the perpendicular and the hypotenuse becomes the same line. Since in cos 90, base is 0, therefore therefore cos 90 is zero

Step-by-step explanation:

Answer: Willis will take 3 hours to paint the room by himself.

Step-by-step explanation:

Given: Time taken by James to complete job by himself = 6 hours

Let Time taken by Willis to complete job by himself = t hours

Together they take 2 hours.

[tex]\dfrac{1}{6}+\dfrac{1}{t}=\dfrac{1}{2}\\\\\Rightarrow\ \dfrac{1}{t}=\dfrac{1}{2}-\dfrac{1}{6}\\\\\Rightarrow\ \dfrac{1}{t}=\dfrac{3-1}{6}\\\\\Rightarrow\ \dfrac{1}{t}=\dfrac{2}{6}\\\\\Rightarrow\ t=\dfrac{6}{2}\\\\\Rightarrow\ t=3[/tex]

So,  Willis will take 3 hours to paint the room by himself.

There are 10 elements in the union of A and B.

What is the union of A and B?

So, set A has 8 elements and set B has 5 elements.

Therefore, there are 10 elements in the union of A and B.

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Answer:

What are you asking?

Step-by-step explanation:

Answer:

I hope this helps you

Step-by-step explanation:

Exposure to CO2 can produce a variety of health effects. These may include headaches, dizziness, restlessness, a tingling or pins or needles feeling, difficulty breathing, sweating, tiredness, increased heart rate, elevated blood pressure, coma, asphyxia, and convulsions.

Answer:

the question is wrong may be.

Answer:

what grade is this

Step-by-step explanation:

I can check it and then I'll get back to you in 30 min

When the domain is {-1,2,4} , the range of the function y =-3x+6 is {-6,0,9}

Given,

The function y= -3x+6

The domain of the function is the complete set of all possible input for the function.

The domain = {-1,2,4}

The range of the function is the complete set of all possible output for the function.

Substitute the values in the function

f(-1)= -3×-1+6

=3+6

= 9

f(2)= -3×2+6

=-6+6

= 0

f(4)= -3×4+6

=-12+6

=-6

So, -6,0 and 9 the possible output of the function y= -3x+6

The range of the function y= -3x+6 is  {-6,0,9}

Hence, When the domain is {-1,2,4} , the range of the function y =-3x+6 is {-6,0,9}

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Answer:

for connexus Modeling With Systems of Inequalities Quick Check as of 1-7-21

Step-by-step explanation:

1)C

2)C

3)D

4)C

5)C

Answer:

x=5

Step-by-step explanation:

The sum of all the even integers between 99 and 301 is 20200

To find the sum of even integers between 99 and 301, we will use the arithmetic progressions(AP). The even numbers can be considered as an AP with common difference 2.

In this case, the first even integer will be 100 and the last even integer will be 300.

nth term of the AP = first term + (n-1) x common difference

               ⇒    300 = 100 + (n-1) x 2

Therefore, n = (200 + 2 )/2 = 101

That is, there are 101 even integers between 99 and 301.

Sum of the 'n' terms in an AP = n/2 ( first term + last term)

                                                = 101/2 (300+100)

                                                = 20200

Thus sum of all the even integers between 99 and 301 = 20200

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Answer:

If there are no restrictions, the domain is all real numbers.

- infinity < x < infinity

Answer:

Step-by-step explanation:

Functions are a correspondence between two sets, called the domain and the range. When defining a function, you usually state what kind of numbers the domain (x) and range (f(x)) values can be. But even if you say they are real numbers, that doesn’t mean that all real numbers can be used for x. It also doesn’t mean that all real numbers can be function values, f(x). There may be restrictions on the domain and range. The restrictions partly depend on the type of function.

In this topic, all functions will be restricted to real number values. That is, only real numbers can be used in the domain, and only real numbers can be in the range.

Answer:1) y=20,x=20√2,2) a=12,b=6

Step-by-step explanation:

Answer:

$21.78

Step-by-step explanation:

We know that each pack of milk costs $3.96, so if we buy 5.5 of these, we will have to pay $3.96 5.5 times. In other words, we must multiply 3.96 by 5.5:

3.96 * 5.5 = 21.78

Thus, Mandy spends $21.78 in all.

Answer:

Solution is 16r-14s

Step-by-step explanation:

2(7r-2s)+2(r-5s)

14r-4s+2r-10s

16r-14s

16r - 14s

The perimeter is a measure of a polygon that describes the distance around the boundaries of a shape.

Perimeter Formula

The perimeter of a rectangle is equal to [tex]l + l + w + w[/tex], where [tex]l[/tex] is the length and [tex]w[/tex] is the width. This can be simplified to [tex]2l+2w[/tex]. Now, we can plug in the expression we are given for width and length.

Simplifying the Expression

The expression above does accurately depict the perimeter, but it should be simplified to make the expression easier to understand and use.

First, distribute the 2 inside the parentheses.

The next step is to combine like terms. Like terms are terms that have the same power and variable. For example, 2r and 14r are like terms.

This is the simplified expression and the final answer.

Answer:

End Behavior of a Function. The end behavior of a polynomial function is the behavior of the graph of f( x ) as x approaches positive infinity or negative infinity. The degree and the leading coefficient of a polynomial function determine the end behavior of the graph.

Step-by-step explanation:

Answer:

x = 3

4^2 + x^2 = 5^2

solve for x

16 + x^2 = 25

x^2 = 25-16

x^2 = 9

sqrt of x^2 = 3

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Hope this helps! If so, please mark my answer as brainliest!

Answer:

UwU UwU UwU UwU

Step-by-step explanation:

Answer:

linear regression: S = 2.3n - 4.2

Step-by-step explanation:

Answer:

g4

Step-by-step explanation:

m

The area  rate of change of side of square is 8 cm/s;

dA/dt = 112 cm²/s;

Area = (r)²; where r is the side of square;

dA/dt = (dA/dr)(dr/dt);

dA/dr = 2r and dA/dt = 112 cm²/s;

Therefore; dr/dt = 112/2r at r = 7;

dr/dt = 112/14 = 8 cm/s;

Rate of change of side of square is 8 cm/s;

area is the quantity that expresses the extent of a area on the plane or on a curved floor. The location of a aircraft region or plane place refers to the location of a shape or planar lamina, at the same time as surface place refers to the vicinity of an open floor or the boundary of a 3-dimensional object.

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Answer:

B

Step-by-step explanation: