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3 years ago

Evaluate the function. f(x) = –2x2 – 10.0 Find f(-5) Answer: Submit Answer

Mathematics

1 answer:

Wittaler [7]3 years ago

3 0

Answer:

f(-5) = 0

Step-by-step explanation:

Step 1: Define

f(x) = -2x² - 10x

f(-5) is x = -5

Step 2: Substitute and Evaluate

f(-5) = -2(-5)² - 10(-5)

f(-5) = -2(25) + 50

f(-5) = -50 + 50

f(-5) = 0

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What should be added to (-5 a2b - 9 ab) to get a2b + 3 ab?

Doss [256]

Based on given conditions,

$a²b + 3 ab - (-5 a²b - 9 ab)$

$→a²b + 3 ab + 5 a²b + 9 ab$

$→(a²b + 5 a²b) + (3ab + 9 ab$

Now collecting the coefficients and adding them,

$(1 + 5)a²b + (3 + 9)ab$

$→6 {a}^{2}b + 12ab$

Hence, the 6a²b + 12ab should be added.

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1 year ago

Are the coordinates ( 2 , 3 ) and ( 3 , 2 ) the same? why or why not?

asambeis [7]

Answer:

Step-by-step explanation:

They are not the same because in the first example: (2,3) the 2 is on the x axis and 3 is on the y axis

In the second example: (3,2) the 3 is on the x axis and the 2 is on the y axis. Therefore the two points are not the same

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2 years ago

Morris currently makes $325 per week and takes 2 exemptions. How much more will his weekly withholding be if he takes no exempti

lina2011 [118]

Answer:

Option C $5.00

Step-by-step explanation:

From given table, since column A showing minimum earning and column B showing maximum earning of employees. Morris currently makes salary $325 per week that is fall in range $300 - $400 in that row we see the column of 2 exemption (exemption $2.00) tax withholding amount.

Now if Morris takes no exemptions we see column 0 and row 300-400 it will be $7.00.

Hence Morris will take withholding ( $7 - $2) = $5.00

His weekly withholding is $5.00 more if he takes no exemptions.

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2 years ago

Read 2 more answers

A fruit stand has to decide what to charge for their produce. They need $5.30 for 1 apple and 1 orange.

eimsori [14]

Answer:

The price of Apples is $3.30 and the price of Oranges is $2.

Step-by-step explanation:

So first treat the price of apples and the price of oranges as variables. Let's say that the price of an apple is X and the price of an orange is Y.

1 Apple and 1 Orange is $5.30, so the equation is 1X + 1Y = 5.30

1 Apple and 2 Oranges is 7.30 so the equation is 1X + 2Y = 7.30

Now, adjust one of the equations so you can know the price of one thing in relation to the price of the other.

1X + 1Y = 5.30 can become 1X = 5.30 - 1Y

Now substitute this into the other equation.

1X + 2Y = 7.30 becomes 5.30 - 1Y + 2Y = 7.30. Now, either combine the Y values or combine the price values.

5.30 + 1Y = 7.30

Y = $2

Now that you have the Y value, replace it in one of the equations.

1X + 2$ = 5.30

1X = 3.30

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2 years ago

How do our graph this

Eva8 [605]

I didn't have any graphing paper, sorry. Regardless, I hope this helps!

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2 years ago