Consider the linear system of equations
2x + 3y + z = -1
3x + 3y + z = 1
2x + 4y + z = 2
b) Solve the system of equations using augmented matrix method​

Answer:

640

Step-by-step explanation:

32 × 60 = 1920

1920 / 3 = 640

hope this helps...

The object is moving at  640 yards per minute.

A unitary method is a mathematical way of obtaining the value of a single unit and then deriving any no. of given units by multiplying it with the single unit.

We know 1 yard is equal to 3 feet and 1 minute is 60 seconds.

Given, An object is moving at the constant rate of 32 feet per second.

∴ The object is moving at {(32/3)×60} yards in one minute.

= 640 yards per minute.

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Answer:

Step-by-step explanation:

S for seats taken by girls, what is the formula for the number of boys on the bus

Answer:

Decrease by 13%

Step-by-step explanation:

Answer:

The answer is that Topsoil costs 10$ more than mulch.

When we look at the equation y=20x, we see that for one cubic yard, it costs 20$. when we look at the graph, we see that for one cubic yard it costs 30$ for topsoil, therefore, Topsoil is $10 more than mulch for each cubic yard.

Answer:

Step-by-step explanation:

1. 350 * 2^t

2. plug in 9 in that equation

Answer:

Answer is A all multiples of 5 end with 5 or 0

The writer was paid $6 per word.

Given is that a writer was paid $24,000 for a 4,000-word article.

Assume that the writer was paid $[x] per word. Then, we can write -

4000x = 24000

[x] = 24000/4000

[x] = 24/4

[x] = 6

Therefore, the writer was paid $6 per word.

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9514 1404 393

Answer:

  $1,197.71

Step-by-step explanation:

The 6.2% Social Security tax applied to the first $90,000 of earnings in 2005, so Jackson is due to be refunded the tax he paid on more than that amount.

  6.2% × (74,007 +35,311 -90,000) = 6.2% × 19,318 = $1,197.71

Jackson should receive a Social Security tax refund of $1,197.71.

_____

Comment on rounding

The tax on 74,007 will be rounded down, as will the tax on 35,311. So, the overpayment value calculated here needs to be rounded down to correspond to the actual to-the-penny amount of overpayment.

Answer:

3

1

Step-by-step explanation:

Answer:

Real Zeros    x = ±4

Complex zeros :  x = ±3 i

Step-by-step explanation:

Explanation

f(x) = x⁴ + 5x² – 36

f(x) = x⁴ + 5x² – 36

    = (x²)² + 9 x² - 4 x² - 36

   = x² (x² + 9) - 4( x² +9)

   = (x² -4 ) (x² +9)

f(x) = x⁴ + 5x² – 36 = (x² -4 ) (x² +9)

(x² -4 ) (x² +9) = 0

⇒ x² -4  = 0 and x² +9 =0

⇒ x² -2² = 0  and  x² = -9

⇒ x = ±4   and   x = ±3 i

Real Zeros    x = ±4

Complex zeros :  x = ±3 i

Answer:

506

Step-by-step explanation:

Answer: 506

Step-by-step explanation:

Answer:

cool

Step-by-step explanation:

i think you got anger issues dude

Answer:

...ok.. (╯ಠ_ಠ）╯︵ ┳━┳

Step-by-step explanation:

Are you the person I friended on brainlyz?

Answer:

they drank 1 bottle of sprite in all

Answer:

1

Step-by-step explanation:

2/4=1/2

1/2+1/2=1

Answer:

she bought 6 pounds of coffee

Step-by-step explanation:

80 minus 33.08=46.92

46.92÷7.82=6

so the answer is 6

Answer:

i cant see what is says srry

Step-by-step explanation:

Answer:

Extarpolation I think but I'm not sure.

Step-by-step explanation:

Answer:

108

Step-by-step explanation:

237-129= 108

hope it helps

Answer:

x= 108

Step-by-step explanation:

use inverse operations to subtract 129 from both sides

x+129=237

   -129   -129

x=108

Answer:

409

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer: b

Step-by-step explanation:

Answer:

A. The open circle pointing to the right

Step-by-step explanation:

Answer:

Step-by-step explanation:

lets say "a" for the empty line,

for small triangle; y^2 = 2^2 + x^2

right triangle; we say a for empty line, a^2= 6^2 + x^2

and big triangle covering both triangles, 8^2 = y^2 + a^2

lets add left sides and right sides in each;

x^2 + 4 + x^2 + 36 + y^2 + a^2 = y^2 + a^2 + 64 and we can delete same things for both sides

y^2 and a^2 can be deleted and 4+36 - 64

2(x^2)=24

x^2= 12

and x will be √12

so, y^2 = x^2 + 2^2 which means y^2 = 12+4 y=16

Answer:

m=-7/3 I think thats the right answer

Answer: 15

Step-by-step explanation: Use the formula: [tex]a^{2}+b^{2}=c^{2}[/tex]

Remember [tex]c^{2}[/tex] should always be the hypotenuse or the longest side.

[tex]112^{2}+b^{2}=113^{2}[/tex] ---> evaluate the exponents

[tex]12544+b^{2}=12769[/tex] ----> subtract 12544 to the other side

[tex]b^{2}=225[/tex] ---> take the square root of both sides

[tex]b=15[/tex]

Answer:

1. principal × rate× time. 250×.03×1

2. $7.50

3. $30.00

Answer: 22

Step-by-step explanation:

Two dozen equals 24, divide it in half leaves 12 vanilla sprinkle doughnuts

the remaining 12 minus the 2 strawberry cream equals 10 chocolate sprinkles

add the 10 chocolate plus 12 vanilla to get 22

Answer: x = 3 √21

Step-by-step explanation:

you gotta use our good, old, trusty friend pythagorean theorem.

a^2 + b^2 = c^2

x^2 + 6^2 = 15^2

x^2 = 15^2 - 6^2

x^2 = 189

x = √189

x = √27 · 7

x = 3 √3 · 7

x = 3 √21

Answer:

Option A: b × 12 ÷ 3 = 96 is the correct answer.

Step-by-step explanation:

Given that:

Batches of muffins made by Dalton = b

Dozen muffins means = b * 12

As he divided the muffins into 3 equal cans, then we will divide it by 3

[tex]\frac{b*12}{3}[/tex]

As there are 96 muffins in each can, thus

[tex]\frac{b*12}{3}=96[/tex]

Hence,

Option A: b × 12 ÷ 3 = 96 is the correct answer.

Answer:

A would be your answer

Step-by-step explanation: