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2 years ago

What is (0.54)⋅(3.8)=

Mathematics

2 answers:

ra1l [238]2 years ago

8 0

Answer:

2.052

Step-by-step explanation:

I hope it helped lot sj

lawyer [7]2 years ago

3 0

Answer:

<u>2.052</u>

Step-by-step explanation: I used a calculator or you could work it out by multiplying with the number 3.8 on top and 0.54 on bottom. Either way you will still get 2.052 Hope this helps ^-^.

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The square root of a negative number, such as StartRoot negative 144 EndRoot, is undefined. Explain why the square root of –x, S

IRINA_888 [86]

Answer:

see the explanation

Step-by-step explanation:

we have

$f(x)=\sqrt{-x}$

we know that

The radicand of the function cannot be a negative number

$-x\geq 0$

Solve for x

Multiply by -1 both sides

$x\leq 0$

The domain of the function f(x) is the interval -----> (-∞, 0]

The domain is all real numbers less than or equal to zero

The range of the function f(x) is the interval ----> [0,∞)

The range is all real numbers greater than or equal to zero

<em>Example</em>

For x=144

$144\leq 0$ ----> is not true

This value of x not satisfy the domain

substitute

$f(x)=\sqrt{-144}$ ----> this value is undefined

For x=-144

$-144\leq 0$ ----> is true

This value of x satisfy the domain

substitute

$f(x)=\sqrt{-(-144)}$

$f(x)=\sqrt{144}$ ----> this value is defined

therefore

The function will be undefined for all those values of x that do not belong to the interval of the domain of the function

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Answer: the answer is C

Step-by-step explanation:

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Let the side length of the square be x, then A = x^2
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The rate of change is z.

When z = 4, the rate is 4.

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Step-by-step explanation i took the test

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firstly regroup the equation
x square-2x+x-2=0
x square-x-2=0
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product of factor = -2x 1
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