3 years ago

Y=x+8 x+y=2 substituion

Mathematics

1 answer:

myrzilka [38]3 years ago

5 0

Answer:

X = -3

y = 5

Step-by-step explanation:

Substitute x + 8 for y

x + x + 8 = 2

2x + 8 = 2

2x = -6

x = -3

y = x + 8

y = -3 + 8

y = 5

You might be interested in

Please help due tonight!!

Darya [45]

PLEASE STOP GIVING OUT LINKKKSSSS!!!

4 0

3 years ago

Try to prove the hypothesis from part B that the sum of a rational and an irrational number is an irrational number.

Maurinko [17]

The next step of your proof is to subtract (a/b) from both sides.

Then you get, x = (m/n) - (a/b)

Since rationals are closed over addition, (m/n) + (-a/b) is a rational number.

Therefore, x (an irrational number) = a rational number <em>This is a false statement which is a contradiction. So, the assumption was incorrect.</em>

Thus, the sum of a rational and irrational number is an irrational number. QED

8 0

3 years ago

Kassie is measuring two line segments. the first line segment is 35 centimetres long. the second line segment is 450 milimetres

Free_Kalibri [48]

1cm = 10mm
the 1st line segment is 35cm = 350mm
the 2nd line segment is 450mm = 45cm

6 0

3 years ago

Which expression is equivalent to StartRoot 128 x Superscript 8 Baseline y cubed z Superscript 9 Baseline EndRoot? Assume y grea

Nataly [62]

Answer:

Option C.

Step-by-step explanation:

The given expression is

$\sqrt{128x^8y^3z^9}$

It can be written as

$\sqrt{(64\cdot 2)\cdot x^8\cdot y^{2+1}\cdot z^{8+1}}$

$=\sqrt{8^2\cdot 2\cdot (x^4)^2\cdot y^{2}\cdot y\cdot (z^{4})^2\cdot z}$

$=\sqrt{(8x^4yz^4)^2\cdot 2yz}$

$=8x^4yz^4\sqrt{2yz}$

Therefore, the correct option is C.

6 0

3 years ago

For an arts and crafts project, a student cut a triangle out of a rectangular piece of paper. If the triangle has a base of 6 in

BartSMP [9]

Area of left over paper=area of rectangle - area of triangle =132-24 =108inches^2

5 0

3 years ago