3 years ago

HELP PLEASE

Mathematics

1 answer:

daser333 [38]3 years ago

7 0

Answer:

I think its C. I'm not sure I havent been thought this lesson.

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Simplify the expression. Write your answer as a complex number.<br><br> please help

tia_tia [17]

The answer is
=15-8i

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3 years ago

Find the product: <br><br>(i) (5 – 2x) (3 + x)

Ilya [14]

<h2><u>Solution</u>:</h2>

$\:$

$\large\red{ \longrightarrow} \pmb{ \sf{(5 – 2x) (3 + x)}}$

$\:$

$\mapsto \: \: \: \sf{5(3 + x) – 2x(3 + x)}$

$\:$

$\mapsto \: \: \: \sf{(5 × 3) + (5 × x) – (2x × 3) – (2x × x)}$

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$\leadsto \: \: \: \sf{ 15 + 5x – 6x – 2x ^{2} }$

$\:$

hope it helps!! :)

7 0

2 years ago

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What is equavilent to (10x+7r-r^(2))+(-6r^(2)-18+5r)

mote1985 [20]

Answer:

−7r^(2)+12r+10x−18

Step-by-step explanation:

Grab the original equation: 10x+7r−r^(2)−6r^(2)−18+5r

For subtraction bits, treat them as negatives: 10x+7r+−r^(2)+−6r^(2)+−18+5r

Combine like terms: (−r^2+−6r^2)+(7r+5r)+(10x)+(−18)

Simplify that, and you get your final answer: −7r^(2)+12r+10x+−18

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3 years ago

I’d appreciate if someone would help me here:-)

Oksi-84 [34.3K]

Answer:-4

Step-by-step explanation:

3 0

3 years ago

Find the area. Will mark brainliest.

11Alexandr11 [23.1K]

Answer:

40 sq cm

Step-by-step explanation:

This

area = length times width so 5 times 8 is 40

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3 years ago

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