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MatroZZZ [7]
2 years ago
10

Subtract (3 + 2i) from (–9 – 8i). –17 – 5i –6 – 6i –12 – 10i 12 + 10

Mathematics
2 answers:
kupik [55]2 years ago
8 0

Answer:

-12 - 10i

Step-by-step explanation:

We are subtracting 3 + 2i from -9 - 8i.  Rewrite the left side as -3 - 2i and then ADD this result to -9 - 8i:

-9 - 8i

-3 -2i

-----------

-12 - 10i

mestny [16]2 years ago
3 0

Answer:

-9-8i)-(3+2i)

= -9-8i-3-2i

Separate i and the numbers

= (-9-3)+(-8i-2i)

= -12-10i

Step-by-step explanation:

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A shopper needs 48 hot dogs. The store sells identical hot dogs in 2 differently sized packages. They sell a six pack hot dog fo
Archy [21]

Answer:He should buy the six pack.

Step-by-step explanation:

The total number of hotdogs that the shopper needs is 48.

The store sells identical hot dogs in 2 differently sized packages. They sell a six pack hot dog for $2.10, and an eight pack of hot dog for $3.12.

If the shopper buys the six pack hot dog, he would need to buy 8 of it. The total cost would be

8 × 2.10 = $16.8

If the shopper buys the eight pack hot dog, he would need to buy 6 of it. The total cost would be

6 × 3.12 = $18.72

The 6 pack is cheaper than the eight pack. Therefore,

He should buy the six pack.

5 0
3 years ago
Determine the measure of angle a. PLEASE HELP ASAP!
wlad13 [49]

Answer:

D

Step-by-step explanation:

Remember that the sum of the interior angles of a triangle will always total 180.

Therefore:

(9x+6)+(74)+(16x)=180\\

Let’s solve for <em>x: </em>

Combine LIke Terms:

(9x+16x)+(74+6)=180

Add:

25x+80=180

Subtract 80 from both sides:

25x=100

Divide both sides by 25:

x=4

Therefore, the value of <em>x </em>is 4.

Now, to find A, we can substitute it for A.

A is measured by:

\angle A=9x+6

Substitute 4 for <em>x</em> and evaluate:

\angle A=9(4)+6=36+6=42\textdegree

Hence, our answer is D.

6 0
3 years ago
Given the quadratic function f(x) = 2x + 5x-12, what is the value of f(-2)?
tino4ka555 [31]

Answer:

-26

Step-by-step explanation:

first substitute -2 for x : 2(-2)+5(-2)-12

-4+-10-12

-14-12

-26

-26 is your answer

pls mark me brainliest if this helps !

6 0
3 years ago
Read 2 more answers
Which phrase describes the linear relationship between the x and y values shown in the table?
kompoz [17]

9514 1404 393

Answer:

  C. y is 6 less than x

Step-by-step explanation:

It is not hard to check.

  A. 6 times x is 6×8 = 48, not 2

  B. 6 times y is 6×2 = 12, not 8

  C. 6 less than 8 is 2; 6 less than 9 is 3

  D. 6 more than 8 is 14, not 2

__

The relation described in C matches the table.

5 0
2 years ago
How to convert 264 yds/1 s to mi/day?
dusya [7]

Answer:

12,960\ \frac{miles}{day}

Step-by-step explanation:

we know that

1\ mile=1,760\ yards

To convert yards to miles multiply by 1/1,760

1\ hour=3,600\ seconds

1\ day=24\ hours

so

(24)3,600=86,400

1\ day=86,400\ seconds

To convert seconds to day multiply by 1/86,400

In this problem we have

264\ \frac{yd}{sec} =264\ \frac{(1/1,760)}{(1/86,400)}=264\ (\frac{86,400}{1,760})=12,960\ \frac{miles}{day}

7 0
3 years ago
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