2 years ago

Hi I need help asap I don’t understand it can u help me for a and b

Mathematics

1 answer:

tankabanditka [31]2 years ago

6 0

Answer:

Hey If you get the answer can you help me bro

Step-by-step explanation:

I am not understanding that either

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7. For homework Javier has to solve the equation below.

cricket20 [7]

Answer:

C 10⁴

Step-by-step explanation:

The given equation is

$7.75n = 77500$

Javier has to solve for n

He can multiply through by 100 to get;

$775n = 7750000$

He can now divide through by 775 to obtain:

$n = \frac{7750000}{775}$

He can now easily simplify to get:

$n = 10000$

We rewrite as a power to get:

$n = {10}^{4}$

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3 years ago

I am a three-digit number. My second digit is 4 times bigger than the third digit. My first digit is 3 less than my second digit

labwork [276]

Answer:

285

Step-by-step explanation:

use algebra

third is x

second is 4x

first is 4x-3

x+4x+4x-3

9x-3 = x+x+1+x+2

9x-3=3x+3

12x=6, divide x=2

third is 2, sec is 8, first is 5

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2 years ago

(a + b)(a 2 - ab + b 2)

JulsSmile [24]

Answer:

a³ + b³

Step-by-step explanation:

Given

(a + b)(a² - ab + b²)

Each term in the second factor is multiplied by each term in the first factor, that is

a(a² - ab + b²) + b(a² - ab + b²) ← distribute both parenthesis

= a³ - a²b + ab² + a²b - ab² + b³ ← collect like terms

= a³ + b³

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3 years ago

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The floor of a storage unit is 6 ft long and 8 feet wide what is the distance between two opposite corners of the floor

riadik2000 [5.3K]

Answer:

10 ft

Step-by-step explanation:

Use theorem pythagoras

Length = x

${x}^{2} = 8 {}^{2} + {6}^{2} \\ x = - 10 \\ x = 10$

the answer is 10 because length can't be in negative number

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2 years ago

Olivia earns $8.50 per hour for babysitting her brother. She also earns a weekly bonus of $12 if she helps with

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Answer

Step-by-step explanation:

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2 years ago

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