Given the function ƒ(x) = 8x^2 − 14x − 10, find ƒ(−2).
Answers
Answer:
f(-2) = 50
Step-by-step explanation:
What f(-2) simply means is that you will substitute -2 in f(x) = 8x^2 − 14x − 10.
That is wherever you see x you replace it by 2
f(-2) = 8(-2)² - 14(-2) - 10
= 8(4) + 28 - 10 (note (-2)² = -2 × -2 = 4. Also, -14 × -2 = 28)
= 32 + 28 - 10
= 60 -10
=50
Therefore f(-2) = 50
Answer:
f(- 2) = 50
Step-by-step explanation:
To evaluate f(- 2) substitute x = - 2 into f(x)
f(- 2) = 8(- 2)² - 14(- 2) - 10
= 8(4) + 28 - 10 = 32 + 28 - 10 = 50
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2+3=5
1/3+2/3=3/3
+1=
6 1/3
3 1/3 + 2 1/3 = 5 2/3
Jean made 5 and 2/3 quarts of green paint.
Answers
Answer: k=-5
Step-by-step explanation:
The remainder theorem says that for any polynomial p(x) , if we divide it by the binomial x−a , the remainder is equal to the value of p(a) .
Therefore for if it is divided by x-2 and x+1 then its remainder must be p(2) and p(-1)
where,
According to the question,
p(2)+p(-1)=0
Answers
125,000.
Explanation:
For the first turn, there are 50 numbers to choose from.
On each turn of a lock, the numbers can be repeated; this means on the second turn, there are 50 numbers to choose from, and on the third turn, there are 50 numbers to choose from. This gives us:
50³ = 50×50×50 = 125,000.
Answer:
125000
Step-by-step explanation:
Ur Welcome
Answers
Answer:
The cart gravitational potential energy is 117,600 Joule
Step-by-step explanation:
First lets define what a gravitational potential energy is.
A gravitational potential energy is the energy stored in an object that rise above a certain height surface.
The formula for calculating the gravitational potential energy(P.E) is m×g×h, where m is the mass of the object measured in kilograms(kg), g is the acceleration due to gravity measured in *(m/s²). It is a constant and always equal to 9.8 m/s² on the earth surface and h is the height of the object above the surface in (m).
The gravitational potential energy is measured in Joules(J).
From the question, mass(m) is given as 40 kg and the height(h) is 300m
and g=9.8m/s²
Gravitational Potential Energy(P.E) = m×g×h
=40 ×9.8 ×300
=117,600 Joules.
Therefore the cart gravitational potential energy is 117,600 Joules.
m for mass = 40 kg
g for gravitational field strength = 10 N/kg
h for height = 300m
Plug them in:
g.p.e = 40 × 10 × 300
= 120000 J
In terms of kilo joule:
1 kJ = 1000 J
so 120000 J = 120 kJ
Answers
Answers
Answer:16.66
Step-by-step explanation: