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Katyanochek1 [597]
3 years ago
5

What is the value of f(-4)

Mathematics
1 answer:
nirvana33 [79]3 years ago
8 0
4 is what is knows as the factorial of 4. 4=4*3*2*1=24
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If f(x) = 2x²+1 and g(x) =x²-7find (f-g)(x)
Karolina [17]
(2x^2-x^2)= x^2
(1+7) = 8

X^2 + 8
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3 years ago
I really need help! This is last minute and its 1 am. I'm tired so I'm going to leave it to you guys to solve my problems and pr
Illusion [34]

Answer:

<h2><u>question 1</u></h2>

n^{2} - 20n -96 = 0

use product and sum method

product = -96

sum = -20

numbers needed = ( -24 , 4)

n - 24 = 0

n + 4 = 0

hence <u>n = 24 and n = -4 </u>

<u></u>

<h2><u>Question 2 </u></h2>

<u />x^{2} + 12 x = 48<u />

in the form ax^{2}  +bx +c = 0

= x^{2} +12x - 48

make use of the formula :

\frac{-b+-\sqrt{b^{2} -4ac} }{2a}

replace values to make 2 equations :

1.\frac{-12+\sqrt{12^{2} -4*1*-48} }{2*1} = 3.17

2.\frac{-12-\sqrt{12^{2} -4*1*-48} }{2*1} = -15.2

hence <u>x = 3.17 and x = -15.2</u>

<u />

<h2><u>Question 3 </u></h2>

<u />x^{2} -14x+40=0<u />

use product and sum method

product = 40

sum = -14

numbers needed = (-10 , -4)

x - 10 = 0

x - 4 = 0

hence<u> x = 10 and x = 4</u>

<u />

<h2><u>Question 4 </u></h2>

<u />5b^{2} -20b-18 = 7<u />

in the form ax^{2}  +bx +c = 0

this becomes 5b^{2} -20b-18-7

= 5b^{2} -20b-25

can simplify by 5

= b^{2} -4b-5 =0\\

use product and sum method

product = -5

sum = -4

numbers needed (-5 , 1)

b-5 = 0

b + 1 = 0

hence <u>b = 5 and b = -1</u>

5 0
4 years ago
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What is an a priori proposition? an a posteriori proposition?
solniwko [45]
A priori means as things were in the beginning or at the start.
a posteriori means as things are after any event.
4 0
3 years ago
PLSSS RNNN<br> -5 + x = 10<br> x = 5<br> x = 10<br> x = -15<br> x = 15
Tema [17]
X = 15

Add 5 to each side
10 + 5 = 15
3 0
3 years ago
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#8 How could you find the area of this shape? O A= 4 x Area of triangle + Area of square O A = 5 x Area of triangle O A = 5 x Ar
KIM [24]

answer

yes

Step-by-step explanation:

3 0
3 years ago
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