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AfilCa [17]
2 years ago
13

4. if f (x) = 2x2 – 32, what is the value of f (5)?

Mathematics
1 answer:
xenn [34]2 years ago
3 0

Step-by-step explanation:

f(x)=2×2-32

f(5)=252-32

f(5)=220

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GIVING 20 POINTS What is the product?
natta225 [31]

Answer:

1

Step-by-step explanation:

4^3 × 4^-3

Apply the law of exponents.

4^(3+-3)

4^(0)

Any base with the exponent of 0 is equal to 1.

= 1

5 0
2 years ago
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45 degreese is used in a pie chart to reperesent 6 people. How many people were there altogehter?
KatRina [158]
We can solve this problem by the rule of three.
A complete pie chart has 360º. 

45º----------------------6 people
360º--------------------    x

x=(360º*6 people) / 45º=48 people.

Answer; 48 people. 
6 0
3 years ago
Can someone please give me the answer to this problem?
Alik [6]
X= 9/2, 15/2
decimal form: 4.5,-7.5
mixed number form: 4 1/2, -7 1/2
3 0
2 years ago
Pls help me find the answer quickly!
Veronika [31]

Answer:

B

<em>Hope that helps! :)</em>

<em></em>

<em>-Aphrodite</em>

<em></em>

60 x 29 = 60 x 29 (Since area of both figures is 60 x 29 - b x h/l x w)

Step-by-step explanation:

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I need to use the Pythagorean Theorem to find X. I don’t know how to do that!!
frutty [35]

Answer:

17) x=8

18) x=\sqrt{189} or x= 3\sqrt{21}

Step-by-step explanation:

So the rule is a^{2} +b^{2} =c^{2}, "c" being the hypothenuse, or the long line that is opposite to the right angle.

17) We know that both values of x are equal to each other, which makes everything 10x easier!

                                               x^{2} +x^{2} =(8\sqrt{2})  ^{2}

(by the way we know the x values are our a and b values because they are legs! the way I like to remember the legs is that they are connected to the right angle box, and therefore support the hypothenuse)

<em>simplify</em> (╥︣﹏╥)    

                                                2x^2=8^2(\sqrt{2} )^{2}  

                                                  2x^2=64(2)

                                                   2x^2=128    

                                                  x^{2}= 128/2  

                                                     x^{2} =64

                                                        x=8      

18) Just pretend that the flipped triangle doesn't exist. It's parallel to the other triangle with values on it, and basically servers no purpose other than being parallel to the sister triangle :)

Anyways, since we know the hypothenuse (15) but we don't know one of our leg values (x), we're going to change our equation a bit!

                                                    c^{2} - b^{2} = a^{2}

It doesn't matter if you put the one leg value in a or b, just as long as you stick to that same equation you started with the entire time!

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                                                   225-36=x^{2}  

                                                     x^{2} =189

                                               x=\sqrt{189}=3\sqrt{21}

        The more you do these, the easier they'll get, so don't worry!

                           

4 0
3 years ago
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