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3 years ago

Solve the system of equations. x + y + z = 9 -2x + y + 2z = 3 x - 4y - z = 2

Mathematics

1 answer:

Vladimir79 [104]3 years ago

5 0

Answer:

(4,-1,6)

Step-by-step explanation:

x=4

y=-1

z=6

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Plz help me in this homework

evablogger [386]

Step-by-step explanation:

You basically have to divide your number from a prime factor until your result is 1

For example

you divide it from the lowest prime number possible, for in this case, 2

12/2 = 6 and you can set aside 2 for now

You do the same thing and you divide it by 2

6/2 = 3 and set aside 2

Now 3 isn't divisible by 2 so you'll find another number, for in this case 3

3/3 = 1

your set side numbers are now 2,2,3

so you'll find out 12 = 2x2x3 as a product of it's prime factors

how ever you cant divide it by 4 or 6 since they aren't prime factors as they are divisible by other numbers

8 0

3 years ago

A pulley is used to pull a boat to the dock. The rope is attached to the boat 7 feet below the level of the pulley. What is the

Svetradugi [14.3K]

Answer: 24 ft

Step-by-step explanation:

By the Pythagorean theorem,

$7^{2}+x^{2}=25^{2} \\ \\ 49+x^{2}=625 \\ \\ x^{2}=576 \\ \\ x=\boxed{24 \text{ ft}}$

7 0

2 years ago

Which answer shows 0.00897 written in scientific notation?

mamaluj [8]

Answer:

d) $8.97*10^{-3}$

Step-by-step explanation:

Move the decimal 3 spaces to the right so that way the decimal can be between the first two numbers. When you move the decimal to the right, it makes the exponent negative, when it moves to the left, it makes it positive

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4 years ago

The area of a circle is 99.88cm2.

777dan777 [17]

Answer:

5.64

Step-by-step explanation:

3 0

3 years ago

Please help me with this SHOW WORK ON PAPER

yawa3891 [41]

Answer:

answers and work are shown below:)

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers