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3 years ago

I need it in standard form & to be simplified

Mathematics

1 answer:

Sergeu [11.5K]3 years ago

7 0

-i + (7 - 5i) - 3(2 - 3i)

= -i + 7 - 5i - 6 + 9i

= -i - 5i + 9i + 7 - 6

= 3i + 1

Answer: 3i + 1

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Four people in a room. Each shakes hands with each of the others once. How many handshakes are there?

storchak [24]

<span>The correct answer is 6.

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3 years ago

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4 years ago

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3 years ago

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EleoNora [17]

Steps to solve:

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Set builder notation: {x | R}

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3 years ago

To French shop for fresh fruit. Elena buys a watermelon for $7.75 and 5 pounds of cherries Tammy buys a pineapple for $4.15 and

lys-0071 [83]

Answer: Elena spent $3.6 +x more than Tammy.

Step-by-step explanation:

Let the cost of each cherry be 'x'.

Cost of watermelon for Elena = $7.75

Cost of 5 pounds of cherries = 5x

So, Equation for Elena would be

$7.75+5x$

Cost of pineapple = $4.15

Number of pounds of cherries = 4

So, Equation for Tammy would be

$\$4.15+4x$

Now, Elena spent more than Tammy by

$(7.75+5x)-(4.15+4x)\\\\=7.75+5x-4.15-4x\\\\=3.6+x$

Hence, Elena spent $3.6 +x more than Tammy.

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3 years ago