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3 years ago

Which ordered pair is a solution of the equation

Mathematics

1 answer:

ipn [44]3 years ago

4 0

Answer:

2. D. $\displaystyle [5, -21]$

1. A. $\displaystyle [3, 1]$

Step-by-step explanation:

When you plug these coordinates into the functions, you get this:

−21 = −25 + 4 ☑

1 = 3 - 2 ☑

I am joyous to assist you anytime.

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romanna [79]

Answer:

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Step-by-step explanation:

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3 years ago

Help please I’m not good at rational functions.

GuDViN [60]

Answer:

See below.

Step-by-step explanation:

$\frac{6z^2-12z}{4z^2-16z+16} +\frac{3z}{z^2-z-2} \\\\$

First, factor the numerators and the denominators:

$=\frac{6z(z-2)}{4(z^2-4x+4)}+\frac{3z}{z^2-z-2}\\=\frac{6z(z-2)}{4(z-2)^2}+\frac{3z}{(z-2)(z+1)}\\=\frac{3z}{2(z-2)}+\frac{3z}{(z-2)(z+1)}$

Now, make the two denominators equivalent. To do this, we can multiply the first term by (z+1) and multiply the second term by 2. This will give us:

$(\frac{z+1}{z+1} )(\frac{3z}{2(z-2)})+(\frac{2}{2})(\frac{3z}{(z-2)(z+1)})\\=\frac{3z(z+1)}{2(z-2)(z+1)}+\frac{6z}{2(z-2)(z+1)} \\$

Now, combine them since they have a common denominator:

$=\frac{3z^2+3z+6z}{2(z-2)(z+1)}\\ =\frac{3z^2+9z}{2(z-2)(z+1)} \\=\frac{3z(z+3)}{2(z-2)(z+1)}$

This cannot be simplified further.

7 0

3 years ago

A pineaple is 7 times heavy as an orange. The pineaple also weighs 870 grams more than the orange.

Lisa [10]

Answer:

1060 grams

Step-by-step explanation:

let the weight of the orange be x, then

pineapple weighs 7x, and also x + 870

equating the 2 expressions for the weight of the pineapple

7x = x + 870 ( subtract x from both sides )

6x = 870 ( divide both sides by 6 )

x = 145

The orange weighs 145 grams and the pineapple 145 + 870 = 1015 grams

Total weight of both = 145 + 1015 = 1060 grams

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3 years ago

Please help 3/4 x [ 12 x 4 + (- 16) ] + (-20) A.16 B.-44 C.44 D.4

frez [133]

The answer is d i honestly just typed it into the computer

5 0

3 years ago

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PLEASE HELP 30 POINNTS URGENT rewrite 34 as a difference of two numbers

lesya692 [45]

Answer:

64 - 30

Step-by-step explanation:

We can subtract 30 from 64 to get 34.

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3 years ago

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