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1 year ago

Use the following variables for #'s(3-5):f= -6 g= 7 h=94) 5-f

Mathematics

1 answer:

Bingel [31]1 year ago

4 0

The value of the expression 5 - f is 11.

An expression, often known as a mathematical expression, is a finite collection of symbols that are well-formed in accordance with context-dependent principles.

A variable is a symbol and placeholder for any mathematical object. In particular, a variable may represent a vector, a number, a function, a matrix, the argument of a function, a set, or an element of a set.

We have the value of the following variables,

f = - 6,

g = 7 and,

h = 9

Now consider the expression 5 - f,

Substituting the value of f in the expression we get,

5 - f = 5 - ( - 6 )

5 - f = 5 + 6

5 - f = 11

Therefore, the value of 5 - f is 11.

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-/2 points

Rom4ik [11]

Answer:

Part 1) The domain of the quadratic function is the interval (-∞,∞)

Part 2) The range is the interval (-∞,1]

Step-by-step explanation:

we have

$f(x)=-x^2+14x-48$

This is a quadratic equation (vertical parabola) open downward (the leading coefficient is negative)

step 1

Find the domain

The domain of a function is the set of all possible values of x

The domain of the quadratic function is the interval

(-∞,∞)

All real numbers

step 2

Find the range

The range of a function is the complete set of all possible resulting values of y, after we have substituted the domain.

we have a vertical parabola open downward

The vertex is a maximum

Let

(h,k) the vertex of the parabola

The range is the interval

(-∞,k]

Find the vertex

$f(x)=-x^2+14x-48$

Factor -1 the leading coefficient

$f(x)=-(x^2-14x)-48$

Complete the square

$f(x)=-(x^2-14x+49)-48+49$

$f(x)=-(x^2-14x+49)+1$

Rewrite as perfect squares

$f(x)=-(x-7)^2+1$

The vertex is the point (7,1)

therefore

The range is the interval

(-∞,1]

6 0

3 years ago

Arrange 3/5,5/8,5/6 and 7/4 in ascending order

melomori [17]

It’s already in ascending order.

3/5= .6

5/8= .625

5/6= .833

7/4= 1.75

6 0

3 years ago

:( A=? B=? please help me

Helen [10]

a= 16x+16

b= 40x + 15

Step-by-step explanation:

We know that perimeter of a rectangle is

$2(l + b)$

So therefore

$2(8x + 3 + 5) = a$

$= > 16x+ 6 + 10 = a$

$= > 16x + 16 = a$

Answer= A) that is perimeter is 16x+16

We know that area of a rectangle is l×b

So therefore

$(8x + 3) \times 5$

$= 40x + 15$

Answer = b) that is area is 40x + 15

7 0

3 years ago

4a^2-9(x+y)^2 factories this step by step pls. Anyone !! Help me pls!!

xxTIMURxx [149]

Answer:

(2a - 3x - 3y)(2a + 3x + 3y)

Step-by-step explanation:

Hi there !

use formula

a² - b² = (a - b)(a + b)

a = 2a

b = 3(x + y)

4a² - 9(x+y)² =

= [2a - 3(x + y)][2a + 3(x + y)]

= (2a - 3x - 3y)(2a + 3x + 3y)

Good luck !

5 0

3 years ago

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3 years ago