I just need help with the numbers in blue! Thx:)

Mathematics

1 answer:

Umnica [9.8K]2 years ago

8 0

Numeric coefficients are the numbers that are multiplied by the variables. Numeric terms are each factor in an expression separated by a mathematical symbol.

6.) Numeric coefficient: 4

Number of terms: 4

7.) Numeric coefficients: 4, 11, -16

Number of terms: 3

9.) Base: 12w and -5z

Exponents: ⁴ and ²

10.) Base: 34p, q, -x, y, z

Exponents: ², ⁶, ⁹, ², ¹²

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Use the elimination method to solve the following system of equations.

aliya0001 [1]

The answer
2x - y + z = -3 (1)
2x + 2y + 3z = 2 (2)
3x - 3y - z = -4 (3)

 (1) - (2) 3y +2z =5
3 .(1) - 2.(2) 3y+5z = -1

let 's solve
3y +2z =5
3y+5z = -1
z= - 2, and 3y =5+4=9, y=3, so 2x - 3 -2 = -3 implies x= 1

finally x=1, y=3 and z= -2
proof
2x - y + z = -3?? 2.1 - 3 -2 = -3 (true)

3 0

2 years ago

Find the distance between points P(5, 1) and Q(3, 4) to the nearest tenth

pav-90 [236]

Answer:

$\sqrt{13}$ units

Step-by-step explanation:

The distance formula is $d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$ where $d$ is the distance between points $(x_1,y_1)$ and $(x_2,y_2)$ . Let $(x_1,y_1)\rightarrow(5,1)$ and $(x_2,y_2)\rightarrow(3,4)$ , thus: