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3 years ago

HELPPP! NEED HELP ASAP!!!!!!!!!!

Mathematics

1 answer:

cupoosta [38]3 years ago

7 0

V = 1/3 × area of the base × height

V = 1/3 × 32 × 17.5 × 24 = 4480 ft³

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Find the value for “x”; 2 – 7x = -19

Law Incorporation [45]

Step-by-step explanation:

2+19=7x

21=7x

21÷7=7x÷7

3=x

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3 years ago

Find the maximum value or minimum value for the function f(x) = 0.15(x + 1)² - 3.

il63 [147K]

Answer:

The minimum value for $f(x) = 0.15(x + 1)^2 - 3$ is $-3$ .

Step-by-step explanation:

Given function is $f(x) = 0.15(x + 1)^2 - 3$

We need to find the maximum value or the minimum value for the function.

Now, differentiate $f(x) = 0.15(x + 1)^2 - 3$ w.r.t $x$ .

$f'(x) =\frac{d}{dx}(0.15(x + 1)^2 - 3)\\f'(x)=\frac{d}{dx}(0.15(x+1)^2-\frac{d}{dx}(3)\\$

$f'(x)=2\times 0.15(x+1)\frac{d}{dx}(x+1)-0\\f'(x)=0.3(x+1)(1)\\f'(x)=0.3(x+1)$

Now, we will equate $f'(x)=0$ to find critical point.

$0.3(x+1)=0\\x=-1$

Plug this critical point in to the function $f(x) = 0.15(x + 1)^2 - 3$ we get,

$f(-1) = 0.15(-1 + 1)^2 - 3\\f(-1)=-3$

Also, $f''(x)=0.3$ which is positive, We have minimum value.

So, the minimum value for $f(x) = 0.15(x + 1)^2 - 3$ is $-3$ .

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3 years ago

What are the solutions of the quadratic equation p^2+3p-28=40

vivado [14]

Answer:

the answer is =-3± $\sqrt{281}$ /2

Step-by-step explanation:

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zavuch27 [327]

$3954=3\underbrace{954}_{\leftarrow3}=\boxed{3.954\cdot10^3}$

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3 years ago

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m_a_m_a [10]

Answer:

it's a star

Step-by-step explanation:

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