MATHEMATICS COLLEGE

Find the difference.
-7 - (-9)

Answers

Answer 1
Answer:

Answer: The answer is 2.

Step-by-step explanation: If you have 2 minuses together, then that actually means a plus. -7+9 is 2.
Answer 2
Answer:

Answer:

-7-(-9) a negative and a negative makes a positive so the new question will be -7+9 which should equal -16?

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Answers

Answer:

Explination:

Work:

Find the absolute maximum and minimum values of the function over the indicated​ interval, and indicate the​ x-values at which they occur. f (x )equals8 x minus 5 ​(A) ​[0​,4​] ​ (B) [negative 4 comma 3 ]

Answers

Answer:

a. Maximum= 27, minimum= -5

b. Maximum= 19, minimum=-37

Step-by-step explanation:

We have the function f(x)=8x-5. Since the function correspond to a line, then the maximum and minimum values of the function over an interval are in the endpoints of the interval.

Observe that if the line has negative slope then the minimum value is in the right endpoint. If the line has positive slope the minimum value is in the left endpoint of the interval.

The function f(x) has slope m=8. Then

a. the minimum value of f(x) in the interval [0,4] is reach when x=0, and the minimum is f(0)=8*0-5=-5 and the maximum is f(4)=8(4)-5=32-5=27

b. the minimum value of f(x) in the interval [-4,,3] is reach when x=-4, and the minimum is f(-4)=8(-4)-5=-32-5=-37 and the maximum is f(3)=8(3)-5=24-5=19

Which expression is equivalent to 3/56x^7y^5 , if x ≠0 and y≠0

Answers

Answer:

2x^2y\sqrt[3]{7xy^2}

Step-by-step explanation:

Given

\sqrt[3]{56x^7y^5}

Required

Solve

Expand

\sqrt[3]{8*7*x^6*x*y^3*y^2}

Rewrite as:

\sqrt[3]{8*x^6*y^3*7*x*y^2}

Split

\sqrt[3]{8*x^6*y^3} *\sqrt[3]{7*x*y^2}

Express 8 as 2^3

\sqrt[3]{2^3*x^6*y^3} *\sqrt[3]{7*x*y^2}

Apply law of indices

2^((3/3))*x^((6/3))*y^((3/3)) *\sqrt[3]{7*x*y^2}

2*x^2*y *\sqrt[3]{7*x*y^2}

2x^2y *\sqrt[3]{7xy^2}

2x^2y\sqrt[3]{7xy^2}

PLEASE HELP
Which is the function represented by the table?

Answers

Answer:

f(x) = 4x

Step-by-step explanation:

-2 x 4 = -8

-1 x 4 = -4

0 x 4 = 0

1 x 4 = 4

23.5 in expanded form164.38 in expanded form
209.106 in expanded form

can you help me

Answers

Answer:

 20  

+ 3  

+   0.5

 100  

+ 60  

+ 4  

+   0.3

+   0.08

200  

+ 0  

+ 9  

+   0.1

+   0.00

+   0.006

Step-by-step explanation:

Hope this helps :D

Answer:

23.5 in expanded form is: 20 + 3 + 0.5

164.38 in expanded form is: 100 + 60 + 4 + 0.3 + 0.08

209.106 in expanded form is: 200 + 0 + 9 + 0.1 + 0.00 + 0.006

Step-by-step explanation:

Show the value of each digit when writing in expanded form. Use plus signs (+) between the values. Knowing the definition of expanded notation can help. Expanded notation means:

"Writing a number to show the value of each digit. It is shown as a sum of each digit multiplied by its matching place value (ones, tens, hundreds, etc.)."

1. Refer to the equation 2x - 4y = 12(a) Create a table of values for at least 4 points. Show your work on how you found the values for each coordinate pair, and validated the points were on the line
Work for Point 1
Work for Point 2
Work for Points
Work for Point 4
Put your points here
O

Answers

The table of values for points x= 1 to x = 4 relating to the linear expression2x - 4y = 12 is given below :

  • x ______ y
  • 1 ______-2.5
  • 2 ______-2
  • 3 ______ -1.5
  • 4 ______ - 1

Giventhe equation :

  • 2x - 4y = 12

We could express the equation in slope - intercept form thus :

-4y = 12 - 2x

Divide both sides by - 4

y = - 3 + 0.5x

  • y = 0.5x - 3

Creating the pair of points :

At ; x = 1

y = 0.5(1) - 3

y = 0.5 - 3 = -2.5

(1, - 2.5)

At point x = 2 ;

y = 0.5(2) - 3

y = 1 - 3 = - 2

(2, - 2)

At point x = 3 ;

y = 0.5(3) - 3

y = 1.5 - 3 = -1.5

(3, -1.5)

At point x = 4 ;

y = 0.5(4) - 3

y = 2 - 3 = -1

(4, - 1)

The graph of the equation is attached below.

Learn more :brainly.com/question/18405415
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