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swat32
3 years ago
6

Someone help me on this.

Mathematics
1 answer:
Tems11 [23]3 years ago
7 0

Answer:

-57-39i

Step-by-step explanation:

So we have the expression:

(7+2i)(-9-3i)

FOIL:

=7(-9)+7(-3i)+2i(-9)+2i(-3i)

Simplify:

=-63-21i-18i-6i^2

Recall that i² is just -1. Thus:

=-63-21i-18i-6(-1)

Simplify:

=-63-21i-18i+6

Combine like terms:

=(-63+6)+(-21i-18i)

Add:

=-57-39i

And we're done!

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$22 skateboard; 25% discount
Mkey [24]

━━━━━━━☆☆━━━━━━━

▹ Answer

<em>$16.50</em>

▹ Step-by-Step Explanation

If you are trying to find the new price, we will deduct 25% from the original cost of $22.

To figure this out, you can multiply 0.25 * 22.

From there, you will get $5.50. This means there will be a $5.50 discount applied. To find the new cost, we will now subtract.

$22 - $5.50 = $16.50

The new cost of the skateboard is $16.50.

Hope this helps!

CloutAnswers ❁

━━━━━━━☆☆━━━━━━━

3 0
3 years ago
lihzi and hiro order pizzas for a party for 10 members of the chess team.the team pays $60 for the pizzas.if 8 team members each
alexandr402 [8]
Heya!!!

Answer is....

let x be the amont of money given by 8 members each.
therefore, hiro and lihzi gives $2x.

A.T.Q.



8x+2 (2x)=60

8x+4x=60

12x=60

x=60/12

x=5

each of 8 members paid $5.

lihzi and hiro paid $10.



HOPE IT HELPS YOU '_'
6 0
3 years ago
Find the value of x.
Veseljchak [2.6K]
<h3>Answer:  x = 35  (choice D)</h3>

====================================================

Work Shown:

secant angle = (far arc - near arc)/2

angle BGC = (arc BC - arc AD)/2

40 = (115 - x)/2

2*40 = 115-x

80 = 115-x

115-x = 80

-x = 80-115

-x = -35

x = 35

For more information, you can search out "secant angles" and it should go over how the formula is set up and why it works.

4 0
3 years ago
Solve using addition or subtraction 3.9 + t =4.5​
lakkis [162]

Answer:

0.6

Step-by-step explanation:

subtract 4.5 from 3.9

3 0
4 years ago
Which of the following is not a parallelogram? A. Square B. Rhombus C. Rectangle D. Right Triangle
Jobisdone [24]
D a right triangle is not a parallelogram
8 0
2 years ago
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