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anastassius [24]
3 years ago
12

Given f(x) =2x^2-4x-5, find f(3)

Mathematics
2 answers:
a_sh-v [17]3 years ago
7 0

Answer:

substitute 3 in for x

f(x)=2(3)^2-4(3)-5

=18-12-5

=1

Step-by-step explanation:

8090 [49]3 years ago
4 0

substitute 3 in for x

f(x)=2(3)^2-4(3)-5

=18-12-5

=1

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Lyrx [107]
<h2><u>Answer:-</u></h2>

\pink{\bigstar} Amount of apple juice Will added \large\leadsto\boxed{\tt\purple{1 \frac{5}{12}}}

<h3>• <u>Given</u><u>:</u><u>-</u></h3>

  • Will puts 1/4 cup of grape juice in a cup.
  • He added apple juice and then he had 1⅔ cup of juice in the cup.

<h3>• <u>T</u><u>o</u><u> </u><u>Find</u><u>:</u><u>-</u></h3>

  • How much apple juice Will added to the cup?

<h3>• <u>S</u><u>o</u><u>l</u><u>u</u><u>t</u><u>i</u><u>o</u><u>n</u><u>:</u><u>-</u></h3>

➪ Amount of grape juice Will added = 1/4

➪ Amount of juice in total after adding the apple juice = 1⅔

Therefore, it is clear that the amount of apple juice Will added to the cup will be the difference in total amount of juice and amount of grape juice.

Hence,

➪ \sf 1 \frac{2}{3} - \dfrac{1}{4}

➪ \sf \dfrac{5}{3} - \dfrac{1}{4}

• <u>Takin</u><u>g</u><u> </u><u>an</u><u> </u><u>L.CM</u><u>:</u><u>-</u>

➪ \sf \dfrac{20 - 3}{12}

➪ \sf \dfrac{17}{12}

➪ \large{\bold\red{1 \frac{5}{12}}}

Therefore, the amount of apple juice added is \large{\bold 1 \frac{5}{12}}

4 0
3 years ago
I have to write the following expression in simplest form 7p-1-9p+5
g100num [7]
The simplest way of writing this: 
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8 0
4 years ago
Solve for x.
egoroff_w [7]
The answer is a -4 (-16=4x)
8 0
4 years ago
What happens to the function f(x)=(x−1)2+1 when it becomes f′(x)=(13x−1)2+1?
lesya [120]
I think the answer is the last one
3 0
3 years ago
I need some help with these please :')
Nataly [62]

Step-by-step explanation:

problem 1.

1. 6y = 30

2. y = 5

3. 3x + 2(5) = 16

4. 3x+10=16

5. 3x=6

6. x=2

solution: (2,5)

problem 2.

1. x=7

2. 4(2)-2y=18

3. 28-2y=18

4. -2y= -10

5. y=5

solution (7,5)

problem 3

10x=10

x=1

7(1) +y =-2

y=-9

(1,9)

problem 4

0= -6

no solution

problem 5

0=0

Infinite many

5 0
3 years ago
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