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Likurg_2 [28]
3 years ago
14

Let f(x) = x2 − 3x − 7. Find f(−3).

Mathematics
2 answers:
puteri [66]3 years ago
8 0
Hope it helped!! :))

elena55 [62]3 years ago
4 0

Answer:

f(-3) = 11

Step-by-step explanation:

To evaluate f(-3), substitute x = - 3 into f(x)

⇒ f ( − 3 )  =  ( − 3 )^ 2  −  3 ( − 3 )  −  7

= 9 + 9 − 7 = 11

hope this helps

sorry if wrong

#Virgo2007

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It would be B. because it's just 7 times 1.5
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Mathematics challenge
kari74 [83]

Get the equation of the line containing PQ using the point-slope formula:

<em>y</em> - (-2) = 3/2 (<em>x</em> - (-6))

Solve for <em>y</em> to get it in slope-intercept form:

<em>y</em> = 3/2 <em>x</em> + 7

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The line containing QR is then

<em>y</em> - 7 = -3/4 (<em>x</em> - 0)

or

<em>y</em> = -3/4 <em>x</em> + 7

The point R is on the <em>x</em>-axis, so its <em>y</em>-coordinate is 0. Plug in <em>y</em> = 0 and solve for <em>x</em> to get the other coordinate:

0 = -3/4 <em>x</em> + 7

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6 0
2 years ago
Write an expression with (-1) as its base that will product a negative product
algol [13]

Base of the exponential equation should be (-1).

And finally the product or result should also be a negative number.

Let us take a variable for n natural numbers.

(Note: All positive whole numbers are called natural numbers that is  1,2,3,4,5,....).

In order to get the expression, we need to find the expession for odd natural numbers.

We know,

The expession for odd natural numbers is given by = 2n-1.

Where n= 1,2,3,4,5...

If we have an odd exponent of a negative number, it always gives a negative number.

We got, base = -1  ( a negative number) and

exponent = (2n-1)    ........... expression for odd number.

Therefore, we could write final exponential expression that would give a negative for all natural numbers.

(-1)^{2n-1}


7 0
3 years ago
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