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3 years ago

Find the following System by the cramer's rule 4x-2y=8 3x+y=-4

Mathematics

1 answer:

In-s [12.5K]3 years ago

4 0

Answer:

the value of x is 0 and y is -4.

hope it helps uh..

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Place values and whole number

LenKa [72]

9. ( 1×10,000)+(5×1,000)+(4×100)+(9×1) ; fifteen thousand , four hundred - nine

7 0

3 years ago

The region bounded by y=(3x)^(1/2), y=3x-6, y=0

Ganezh [65]

Answer:

4.5 sq. units.

Step-by-step explanation:

The given curve is $y = (3x)^{\frac{1}{2} }$

⇒ $y^{2} = 3x$ ...... (1)

This curve passes through (0,0) point.

Now, the straight line is y = 3x - 6 ....... (2)

Now, solving (1) and (2) we get,

$y^{2} - y - 6 = 0$

⇒ (y - 3)(y + 2) = 0

⇒ y = 3 or y = -2

We will consider y = 3.

Now, y = 3x - 6 has zero at x = 2.

Therefor, the required are = $\int\limits^3_0 {(3x)^{\frac{1}{2} } } \, dx - \int\limits^3_2 {(3x - 6)} \, dx$

= $\sqrt{3} [{\frac{x^{\frac{3}{2} } }{\frac{3}{2} } }]^{3} _{0} - [\frac{3x^{2} }{2} - 6x ]^{3} _{2}$

= $[\frac{\sqrt{3}\times 2 \times 3^{\frac{3}{2} } }{3}] - [13.5 - 18 - 6 + 12]$

= 6 - 1.5

= 4.5 sq. units. (Answer)

7 0

3 years ago

Sixty students eat twenty four pizzas.To find how many pizzas are needed to feed fifteen students, Set up the problem but don't

bezimeni [28]

Idk what you mean the answer is 15 students eat six pizzas

4 0

3 years ago

Which expression represents each mathematical phrase?

olganol [36]

Answer:

Step-by-step explanation:

add 12 and a number: 12 + c

subtract a number from 12: 12 - c

divide a number by 12: c : 12 or c/12

multiply 12 by a number: 12 · c = 12c

5 0

2 years ago

Find the range of the data in the box plot below.

kifflom [539]

Answer:

Step-by-step explanation:

22-6=16 ;0

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2 years ago