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ryzh [129]
3 years ago
13

Does anyone know how to do these proofs, thank u so much.

Mathematics
1 answer:
Luba_88 [7]3 years ago
8 0
Def AC BD with an explanation
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What can you say about the y-values of the two functions f(x)=-5^x +2 and g(x)=-5x^2+2?
Kryger [21]

Answer:

B) The maximum y-value of f(x) approaches 2

C) g(x) has the largest possible y-value

Step-by-step explanation:

f(x)=-5^x+2

f(x) is an exponential function.

Lim x→∞ f(x) = Lim x→∞ (-5^x+2) = -5^(∞)+2 = -∞+2→ Lim x→∞ f(x) = -∞

Lim x→ -∞ f(x) = Lim x→ -∞ (-5^x+2) = -5^(-∞)+2 = -1/5^∞+2 = -1/∞+2 = 0+2→

Lim x→ -∞ f(x) = 2

Then the maximun y-value of f(x) approaches 2


g(x)=-5x^2+2

g(x) is a quadratic function. The graph is a parabola

g(x)=ax^2+bx+c

a=-5<0, the parabola opens downward and has a maximum value at

x=-b/(2a)

b=0

c=2

x=-0/2(-5)

x=0/10

x=0

The maximum value is at x=0:

g(0)=-5(0)^2+2=-5(0)+2=0+2→g(0)=2

The maximum value of g(x) is 2

7 0
3 years ago
100 POINTS! I am starving for help! Feed me an answer to this homeless guy!!!!!!!!!!!!!
stich3 [128]

Your answer is 288 dogs

because (216/3 =72, 72 x 4 =288)

hope this helps, plz votea s brainliest!!

5 0
3 years ago
Read 2 more answers
Whats is 25.00-16.32
Evgen [1.6K]

Answer:

8.68

Step-by-step explanation:

when you minus the two u get 8.68

:)

brainliest? i answered first :) and i only need one more

6 0
2 years ago
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A fish tank is filled with water.The tank holds 150 gallons.Each cubic foot of water contains about 7.5 gallons.The rank is 5 fe
san4es73 [151]

Answer:

Width = 1\frac{1}{3} ft

Step-by-step explanation:

The tank holds 150 gallons of water.

7.5 gallons holds 1 ft³ of water.

So 150 gallons will hold;

\frac{150}{7.5} × 1 ft³ = 20 ft³

The volume of the tank = Length(l) × Width(w) × Height(h) = 20 ft³

i.e 5 ft × w × 3 ft = 20 ft³

15w ft² = 20 ft³

w = \frac{20 ft^3}{15 ft^2} =  1\frac{1}{3} ft

6 0
3 years ago
5) You can buy 5 cans for green beans at the Village Market for $2.60. You can buy 10
Mars2501 [29]

Answer: Sams club

Step-by-step explanation: Better offer since u get more cans for a low price

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