3 years ago

Without using 10, show directly that (17.6-1)8 = 17.6-8

Mathematics

1 answer:

lidiya [134]3 years ago

6 0

(x^-b)^a=x^-ab
17.6^-8

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4*10^6 is how many as times as 1*10^4

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4*10^6 = 4,000,000 1*10^4 = 10,000 4,000,000 x 10,000 = 40,000,000,000 ANSWER: 40,000,000,000

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3 years ago

PLEASE HELP!!!!!! the sum of a number times 10 and 15 is at most -17

Brilliant_brown [7]

Let the number = x

Writing the equation you have:

10x + 15 <= -17

Solve for x

Subtract 15 from both sides:

10x <= -32

Divide both sides by 10:

X <= -32/10

Simplify:

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3 years ago

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olganol [36]

Answer:

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Step-by-step explanation:

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3 years ago

Two mechanics worked on the car the first mechanic work for five hours in a sec mechanic work for 15 hours together the tires a

FrozenT [24]

Answer:

Mechanic 1: $55 per hour

Mechanic 2: $105 per hour

Step-by-step explanation:

Given

Represent the rate of the first mechanic with x and the second with y.

So, we have:

$x + y = 160$

The total earnings is: $1850, so we have:

$5x + 15y = 1850$

Required

Determine the rate of each

The equations are:

$x + y = 160$ --- (1)

$5x + 15y = 1850$ --- (2)

Divide (2) through by 5

$x + 3y = 370$ --- (3)

Subtract (1) from (3)

$x - x + 3y - y = 370 - 160$

$2y = 210$

Divide through by 2

$y = \frac{210}{2}$

$y = 105$

Substitute 105 for y in (1)

$x + y = 160$

Make x the subject

$x = 160 - y$

Substitute 105 for y

$x = 160 - 105$

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Hence:

Mechanic 1: $55 per hour

Mechanic 2: $105 per hour

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3 years ago

Combine like terms to write the expression in simplest form.<br> 42? + 5y? 2² - 3y²<br> 3y” — Бу

rosijanka [135]

Answer:Missing: 3y² ‎Бу

Step-by-step explanation:

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2 years ago

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