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KiRa [710]
3 years ago
10

If w = -2 and v = -8, which of the following expressions shows the values correctly substituted in for the variables in the expr

ession w^2 - v + 1? -2^2 - (-8) + 1 -2^2 - 8 + 1 (-2)^2 - (8) + 1 (-2)^2 - (-8) + 1 Please help!!! <3
Mathematics
2 answers:
Margarita [4]3 years ago
8 0

Answer:

(-2)^2-(-8)+1

Step-by-step explanation:

w^2-v+1

(-2)^2-(-8)+1

tia_tia [17]3 years ago
8 0

Hello there! :)

Answer:

The last option.

Step-by-step explanation:

If w = -2 and v  = -8:

Substituting these into the equation w² - v + 1 would look like:

(-2)² - (-8) + 1

When finding the square of a negative number, parenthesis must be used because:

-2² = -4, whereas (-2) = 4.

When subtracting a negative number, parenthesis also need to be used:

-(-8) = +8.

The corresponding equation that is equivalent to this is the final equation listed, or the fourth option.

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Answer:

Check explanation

Step-by-step explanation:

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4 0
3 years ago
What is the lcm of 16, 24 and 40
ivann1987 [24]
The answer is 240

Explanation: The Least Common Multiple (LCM) is the smallest number that two or more numbers will divide into evenly. NOTE: to find LCM you first need to know how to find GCD.

First we will find LCM for first two numbers ( 16 and24 ).

Step 1: Find the GCD (Greatest Common Divisor ) of 16 and 24 which is 8.

Step 2: Multiply the numbers 16 and 24 together ( 16 * 24 = 384 )

Step 3: Divide the 384 with 8. (384/8 = 48)

So, the LCM of 16 and 24 is 48.

Now we will find the LCM of above result (48) and third number ( 40 ) using the same procedure.

The result of this part is 240

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3 years ago
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7 0
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the admission fee at an amusement park is $3.50 for children and $7.20 for adults. on a certain day, 344 people entered the park
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