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1 year ago

Please help, Pre-Algebra super easy math question

Mathematics

2 answers:

ivanzaharov [21]1 year ago

7 0

Answer:

-16

Step-by-step explanation:

b) -x²; x = -4

-(-4)²

-(16)

-16

I hope this helps!

sergij07 [2.7K]1 year ago

3 0

Answer: -16

Step-by-step explanation:

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2 years ago

The value of the expression -2 xy for x = -4.7 and y = 0.2 is _____.

sergeinik [125]

The value of the expression -2xy for x = -4.7 and y = 0.2 is 1.88. Thus option number 3 is correct.

<u>Solution:</u>

We have been given an expression that is -2xy and have been asked to find its value for the given values of x and y

The given values of x and y are -4.7 and 0.2 respectively.

To find the value of the expression for the given values of x and y we substitute the values of x and y in the given expression and solve it as follows:

Given expression = -2xy

$\begin{array}{l}{=-2(-4.7)(0.2)} \\\\ {=9.4 \times 0.2} \\\\ {=1.88}\end{array}$

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2 years ago

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