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alexdok [17]
3 years ago
12

Find f(-3) it f(x) =x^2

Mathematics
1 answer:
xeze [42]3 years ago
4 0

Answer:

9

Step-by-step explanation:Replace the variable  

x  with  − 3  in the expression.  f ( − 3 )  =  ( − 3 ) 2  Simplify  (− 3 ) 2 .  Remove parentheses.  ( − 3 ) 2  Raise  − 3  to the power of  2 . 9

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3y+12=2x in slope-intercept form?
alekssr [168]

\bf \stackrel{\textit{solving for \underline{y}}}{3y+12=2x}\implies 3y=2x-12\implies y=\cfrac{2x-12}{3}\implies y=\cfrac{2x}{3}-\cfrac{12}{3} \\\\\\ y=\cfrac{2}{3}x-4\impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}

5 0
3 years ago
3x-8=3(x-4)+1 plz plz help me fast is it infinite or no or one solution
Gemiola [76]

Answer:

no solution

Step-by-step explanation:

solve the equation

3x - 8 = 3(x-4) + 1    

3x - 8 = 3x - 11

3x + 3 = 3x

x + 3 = x

A number x plus 3 cannot equal a number x.        

5 0
3 years ago
Read 2 more answers
Kayla lives 212 mi. from Boston. If she drives at a constant rate of 53 mph, how many hours will it take her to get to Boston?
Nana76 [90]
11 hours and 23 minutes n 6 seconds 
5 0
3 years ago
Read 2 more answers
J+3/8 if j Equals 3/8
hodyreva [135]

Answer:

3

5

÷

j

=

3

8

Multiply the numerator of the first fraction by the denominator of the second fraction. Set this equal to the product of the denominator of the first fraction and the numerator of the second fraction.

(

3

5

)

⋅

8

=

j

⋅

3

Step-by-step explanation:Multiply the numerator of the first fraction by the denominator of the second fraction. Set this equal to the product of the denominator of the first fraction and the numerator of the second fraction.

(

3

5

)

⋅

8

=

j

⋅

3

6 0
3 years ago
How much water should we add to 35kg of sugar syrup to change it's concentration from 30% to 25%
agasfer [191]

Answer:

Water = 1/5 of the volume of the syrup

Step-by-.step explanation:

Suppose we had  1000 cm^3 of syrup  and the new volume after adding water is x cm^3.  Now the amount of sugar stays the same so we have the equation 35 * 1000 =  25 * x

x = (30 * 1000) / 25 =  30,000 / 25

= 1200 cm^3

So we need to add 200 cm^2 of water .

In general terms,  we need to add water which equals 1/5 of the volume of the syrup,

4 0
4 years ago
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