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Bess [88]
3 years ago
15

What is the product of z1 and z2 if

Mathematics
1 answer:
MaRussiya [10]3 years ago
8 0

Answer:

308[cos(45) + isin(45)]

Step-by-step explanation:

z1×z2:

Modulus: r1 × r2

= 7×44 = 308

Argument: theta1 + theta2

= -70 + 115 = 45

z1z2 = 308[cos(45) + isin(45)]

Or

z1z2 = 154sqrt(2) + (i)154sqrt(2)

sqrt: square root

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the elevation of Death valley, California is -282 feet. the Mississippi river in Illinois has an elevation of 279 feet. which is
polet [3.4K]

Answer:

1 + 1 = 2

Step-by-step explanation:

2+2=4

hope it helps

8 0
2 years ago
Help me please please please please
Sophie [7]
Not sure what the question is, but the equation for this graph would be 2|x-1|+1
the equation is usually a|x-h|+k
a is the slope (rise over run) and this goes up (rise) 2 every time it moves 1 left (run) so the slope is 2/1 which is just 2
then the x is kept the same and h is how much left or right the origin is, this one is 1 to the right so it's minus 1 (left would be plus one)
the k is how much up or down the origin is
this one is 1 up, so +1
3 0
3 years ago
Find the surface area
earnstyle [38]
2,600 cm because 20 x 20 = 400 and then 400 x 6 = 2,600 because it is a cube.
5 0
3 years ago
You order fifteen burritos to go from a Mexican restaurant, six with hot peppers and nine without. However, the restaurant forgo
Mrrafil [7]

Answer: 0.936

Step-by-step explanation:

Given : Total burritos ordered  = 15

Number of burritos with hot peppers = 6

number of burritos without hot peppers =9

Then , the proportion of burritos with hot peppers= p=\dfrac{6}{15}=0.4

The number of burritos picked: n = 3

Then using binomial probability , the probability that at most two have hot peppers is given  by:-

P(x\leq2)=1-P(x=3)\\\\=1-^3C_3(0.4)^3(0.6)^0\\\\=1-(1)(0.4)^3=0.936

Hence, the required probability = 0.936

5 0
3 years ago
Janelle types at the rate of Syntax error from line 1 column 49 to line 1 column 73. Unexpected 'mathsize'. Of a page per minute
Lesechka [4]

Answer: D) Janelle can type 1/4 of a page in 2/3 of a minute

Step-by-step explanation:

Option A is wrong because based on the constraints, Janine would type less than 3/8 of a page in anything less than a minute. 8 > 3/8.

For that same reason, option B is wrong as well. 2 > 3/8.

1/2 > 3/8 so Option C is wrong for the same reason as the options above.

To test option D;

If Janine can type 3/8 of a page per minute, how much can she type in 2/3 minutes.

Assume the much she can type is x;

3/8 : 1

x    : 2/3

1x = 3/8 * 2/3

x = 1/4

<em>Option D is therefore correct. </em>

6 0
3 years ago
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