170 . 10 millimeters make up 1cm so multiple 17x10
Answer:
Step-by-step explanation:
- <em>Binomial = 2 terms in the expression</em>
- <em>Third degree = highest added degree of variables in one term</em>
(A) It has 3 terms and highest degree of 4. It is trinomial of degree 4.
(B) It has 2 terms and highest degree of 3. It is binomial of degree 3.
(C) It has 2 terms and highest degree of 7. It is binomial of degree 7.
(D) It has 2 terms and highest degree of 3. It is binomial of degree 3.
24, 32 , 40. Divide through by 8
3, 4, 5,
The 3 , 4, 5 reminds of the Pythagorean triple, which is a right angled triangle.
So a triangle with sides 24, 32, 40 is a right angled triangle.
Option A.
<u>Answer:</u>
The solution set of given equations -x-y-z = -8 and - 4x + 4y + 5z = 7 and 2x + 2z = 4 is (3, 6, -1)
<u>Solution:</u>
Given, set linear equations are
-x – y – z = -8 ⇒ x + y + z = 8 → (1)
-4x + 4y + 5z = 7 ⇒ 4x – 4y – 5z = -7 → (2)
2x + 2z = 4 ⇒ x + z = 2 → (3)
We have to solve the above given equations using substitution method.
Now take (3), x + z = 2 ⇒ x = 2 – z
So substitute x value in (1)
(1) ⇒ (2 – z) + y + z = 8 ⇒ 2 + y + z – z = 8 ⇒ y + 0 = 8 – 2 ⇒ y = 6.
Now substitute x and y values in (2)
(2) ⇒ 4(2 – z) – 4(6) – 5z = - 7 ⇒ 8 – 4z – 24 – 5z = -7 ⇒ -9z – 16 = -7 ⇒ 9z = 7 – 16 ⇒ 9z = -9 ⇒ z = -1
Now substitute z value in (3)
(3) ⇒ x – 1 = 2 ⇒ x = 2 + 1 ⇒ x = 3
Hence, the solution set of given equations is (3, 6, -1).
