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Svet_ta [14]
3 years ago
15

For the complex number z = Negative StartFraction StartRoot 21 EndRoot Over 2 EndFraction minus StartFraction StartRoot 7 EndRoo

t Over 2 EndFraction i, what is arg(z)? 150° 210° 240° 330°
Mathematics
2 answers:
Rus_ich [418]3 years ago
7 0

Answer:

210

Step-by-step explanation:

gogolik [260]3 years ago
3 0

Answer:

210

Step-by-step explanation:

EDGE 2020

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The segments represent roads in a town, measured in miles. Theo drove from the post office to the grocery store. How many miles
Ivahew [28]

Answer:

16 miles

Step-by-step explanation:

The graph is counting by 2, and there are 8 spaces between the Grocery store and the post office.  8(2) = 16

6 0
4 years ago
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Caitlin makes candles and sells them in her online shop. Tall candles cost $8 each and short candles cost $5 each. last month, s
snow_tiger [21]

Answer:

tall candles = 39

Short candles = 52

Step-by-step explanation:

let tall candles be x

and short candles be y

No. Of candles sold = x + y =91

Money made from candles will be equal to = 8x + 5y = $572

These both are simultaneous linear equations.

x + y =91 ( multiply by 5)

5x + 5y = 455

8x + 5y = $572

Subtract them:

-3x = -117

x = -117/3

x = 39

put value of x in

x + y = 91

39 + y = 91

y = 91 - 39

y = 52

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y shows short candles so they are 52

3 0
3 years ago
A rational number between -2/3 and 1/4 is​
Eduardwww [97]

Answer:

-7/12 is the answer of your question

6 0
3 years ago
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Please please help. It’s due at 11:59. I don’t understand
Julli [10]

Answer:

Step-by-step explanation:

FYI,

<em>C ∪ D = ( - ∞ , 2 ) ∪ [ 6 , ∞ ) </em>

<em>C ∩ D = ∅ </em>

4 0
3 years ago
At the start of the recovery period, the waterbuck population contained only 140 individuals. The population had 0.67 births per
Sergio [31]

Answer:

the intrinsic growth rate of the population = 0.67 - 0.06 = 0.61 or 61%

Step-by-step explanation:

since populations increase exponentially, the same will happen here

in 5 years the population should be:

P₅ = P₀e°⁶¹ˣ⁵ = 140e°⁶¹ˣ⁵ = 2,956.15 ≈ 2,956

in 10 years the population will be:

P₁₀ = P₀e°⁶¹ˣ¹⁰ = 140e°⁶¹ˣ¹⁰ = 62,420.09 ≈ 62,420

when you are using exponential growth rates, we have to assume that r will always remain constant

6 0
3 years ago
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