3 years ago

Help help help help

Mathematics

1 answer:

harina [27]3 years ago

5 0

Answer:

-1

Step-by-step explanation:

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What is the value of<br> 4x3 + 4x when x = 4?

svetlana [45]

Answer:

yes this is the right answer is 4X

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3 years ago

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Simplify (4+2n3)+(5n3+2). Write the answer in standard form.

Ulleksa [173]

Answer:

The answer is 7n3 + 6.

Step-by-step explanation:

To simplify, remove the parentheses and combine like terms.

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4 years ago

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Verify:x³+Y³=(x+y)(x²-xy+y²)

Karolina [17]

RHS-
(x+y)(x²-xy+y²)
=x(x²-xy+y²)+y(x²-xy+y²)
=x³-x²y+xy²+x²y-xy²+y³
(CANCEL THE POSSIBLE TERMS)
=x³+y³
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therefore verified

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4 years ago

Mailboxes Plus sends packages overnight for $5 plus $0.25 per ounce. United Packages charges $2 plus $0.35 per ounce. Me. Molina

Dennis_Churaev [7]

The package weighs 30 ounces.

Step-by-step explanation:

Mailbox Plus charges;

Charges per ounce = $0.25

Let,

x be the number of ounces.

M(x)=5+0.25x

United packges charges;

Charges per ounce = $0.35

U(x) = 2+0.35x

Cost will be same when the functions are equal;

M(x) = U(x)

$5+0.25x=2+0.35x\\5-2=0.35x-0.25x\\3=0.10x\\0.10x=3\\$

Dividing both sides by 0.10

$\frac{0.10x}{0.10}=\frac{3}{0.10}\\x=30$

The package weighs 30 ounces.

Keywords: functions, division

Learn more about division at:

#LearnwithBrainly

6 0

3 years ago

30 points!!!!!

dlinn [17]

HELLO...!!

Diagonal = ?
Wide = 20 in.
High = 15 in.

Pythagoras formula: D² = H² + W²

$D^2=(15)^2+(20)^2\\ \\D^2=225+400\\ \\D^2=625\\ \\D= \sqrt{625}\\ \\D=25\ in.\quad\Longrightarrow\boxed{\boxed{\mathbb{ANSWER\ \checkmark}}}\\ \\ \\\textbf{HOPE\ THIS\ HELPS...!!}$

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3 years ago