2 years ago

Find XY when X is (-3,0) and y is (0,7)

Mathematics

1 answer:

ElenaW [278]2 years ago

7 0

Answer:

X=(-3,0)

Y=(0,7)

hope it helps.........

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What is the value of the expression below when z = 2? 4z2 – 3z – 4

zhenek [66]

Answer:

Step-by-step explanation:

$4z^2 - 3z - 4\\z =2$

Substitute 2 for z in the given equation

$4(2)^2 - 3(2) -4\\$

Follow the PEMDAS order of operations

$\mathrm{Calculate\:exponents}\:\left(2\right)^2\::\quad 4\\=4\cdot \:4-3\left(2\right)-4\\\\\mathrm{Multiply\:and\:divide\:\left(left\:to\:right\right)}\:4\times\:4\::\quad 16\\=16-3\left(2\right)-4\\\\\mathrm{Multiply\:and\:divide\:\left(left\:to\:right\right)}\:3\left(2\right)\::\quad 6\\=16-6-4\\\\\mathrm{Add\:and\:subtract\:\left(left\:to\:right\right)}\:16-6-4\::\quad 6$