B.
Evaluate each expression. Let a = -2, b= 6,0 = 3, d = 2,n=-* , x = 0.2, and y = 1.5.
x-(2y + 3x)-2y
1.
6.
4(d+n)
2. 3x -(2y - 5x)-9y
7. (100x)?
3. (2a - 3y) - (8a - b + 4c)
8.
a(8-3n) + 4ad
9.
4. 12d + abc
Tab + bc
d
a²+ b²
10.
5. 2ax + 3bd - 5cx
2 + c
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Answer:
NAG BASE LANG AKO SA GIVEN MO :)
Step-by-step explanation:
1.) x-(2y + 3x)-2y
=0.2-[2(1.5) + 3(0.2)] -2(1.5)
=0.2-[3+0.6]-3
=0.2 – 3.6 – 3
= -6.4
6.) 4(d+n)
= 4 ( 2 + (-8))
=4(-6)
= -24
2.) 3x -(2y - 5x)-9y
=3(0.2) -(2(1.5) – 5(0.2))-9(1.5)
=3(0.2) -(2(1.5) – 5(0.2))-9(1.5)
=0.6 – (3 – 1) – 13.5
=0.6 – 2 – 13.5
=-14.9
7.) (100x)
=100(0.2)
=20
3.) (2a - 3y) - (8a - b + 4c)
=(2(-2) – 3(1.5)) - (8(-2) - 6 + 4(3))
=(-4 -4.5) – (-16 -6 +12)
= - 8.5 +10
= 1.5
8.) a(8-3n) + 4ad
= -2(8-3(-8)) + 4(-2)(2)
= -2(8-3(-8)) + 4(-2)(2)
= -2 ( 8 + 24) – 16
= -2 (32) – 16
= - 64 – 16
= -80
4.) 12d + abc
= 12 (2) + (-2)(6)(3)
= 24 -36
= -12
10.) a²+ b²
= . (-2)²+ 6²
= 4 + 36
= 40
5.) 2ax + 3bd - 5cx
= 2(-2)(0.2) + 3(6)(2) – 5(3)(0.2)
= 2 (-0.4) + 36 – 3
= - 0.8 + 36 -3
=32.2