All categories

3 years ago

Which statement describes the graph of f(x)=-4x^3-28x^2-32x+64

Mathematics

2 answers:

lord [1]3 years ago

7 0

The only that has the shape of the one below.

y = -4(x^3 + 7x^2+8x - 16)
Let x = 1
y = - 4(1 + 7 + 8 - 16)
y = 0

y = -4(x -1)(x^2 + 8x + 16)
y = -4(x - 1)(x + 4)^2

Orlov [11]3 years ago

6 0

Answer:

The Answer is D

Step-by-step explanation:

You might be interested in

If ∠1≅∠2, then ___...

Novay_Z [31]

Answer: All of thé above

Step-by-step explanation:

6 0

3 years ago

Compound interest In Exercise,$3000 is invested in an account at interest rate r,compounded continuously.Find the time required

xenn [34]

Answer:

(a) 8.15

(b) 12.92

Step-by-step explanation:

Given: P = $3000, r = 0.085

$A = Pe^{rt}$

Where

A is the Amount

P is the Principal

r is the rate

t is the time

(a) For the amount to double, A = 2 × P

A = 2 × $3000

A = $6000

$6000 = 3000e^{0.085t}$

$\frac{6000}{3000} = e^{0.085t}$

$2 = e^{0.085t}$

Take $log_{e}$ of both sides

$log_{e}2 = log_{e}e^{0.085t}$

But $log_{e}e = 1$

∴ $ln2 = 0.085t$

$t = \frac{ln2}{0.085}$

$t = \frac{0.693}{0.085}$

t = 8.15

(b) For the amount to double, A = 3 × P

A = 3 × $3000

A = $9000

$9000 = 3000e^{0.085t}$

$\frac{9000}{3000} = e^{0.085t}$

$3 = e^{0.085t}$

Take $log_{e}$ of both sides

$log_{e}3 = log_{e}e^{0.085t}$

But $log_{e}e = 1$

∴ $ln3 = 0.085t$

$t = \frac{ln3}{0.085}$

$t = \frac{1.0986}{0.085}$

t = 12.92

5 0

3 years ago

4. In this figure, B↔A↔

LenaWriter [7]

Answer:

B. 25 degrees

Step-by-step explanation:

i think

6 0

3 years ago

Find the area of the circle (radius = 6)

Rainbow [258]

Step-by-step explanation:

Area of the circle = pi×r²

= 22/7 × 6 × 6

= 113.14 unit²

4 0

3 years ago

Read 2 more answers

What plus 18 equals 45?

natali 33 [55]

Okay to find what 18+?=45 just subtract 18 from 45. ANSWER: 27

8 0

3 years ago