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3 years ago

12

30 cupcakes 20 students divided even

1 answer:

NeTakaya3 years ago

7 0

Answer:

1.5 each

Step-by-step explanation:

30 divided by 20 is 1.5

Each student would get 1 and a half cupcake.

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Find the square roots of 119 + 120i algebraically.

blondinia [14]

Answer:

Step-by-step explanation:

Given

z=119+120 i

Let $\sqrt{119+120 i}=p+iq$

Squaring both sides

$119+120 i=p^2-q^2+2ipq$

Comparing real and imaginary part

Re(LHS)=Re(RHS)

$119=p^2-q^2$ -----------1

comparing Im(LHS)=Im(RHS)

120=2pq

$q=\frac{60}{p}$

Substitute q in 1

$119=p^2-(\frac{60}{p})^2$

$p^4-119p^2-(68)^2=0$

Let $x=p^2$

$x^2-119x-4624=0$

$x=\frac{119\pm \sqrt{119^2+4\times 4624}}{2}$

$x=\frac{119\pm 180.71}{2}$

we take only Positive value because $p^2=x$

x=149.85

$p^2=149.85$

thus $p=\pm 12.24$

$q=\mp 4.90$

thus $\sqrt{119+120 i}=\pm (12.24+i 4.90)$

8 0

3 years ago

Which is the best estimated√43 to the nearest tenth

12345 [234]

6.5
hope i helped!!!!

3 0

3 years ago

PLEASEEEEEE HELP IM RLLY STRUGGLING BRAINLIEST

Butoxors [25]

Answer:

see below

Step-by-step explanation:

1) see attached image

2) <u> bearings from A to B</u>

Note: bearing is always clockwise from A and from North.

(i)

bearing 180° + 67°

247° from N

(ii)

bearing 148 + 180

328° from N

(iii)

bearing 180 - 21

159° from N

(iv)

39° from N

(v)

bearing 90 - 40

50° from N

3) <u>back bearing from each diagram on no. 2</u>

<u />

Note: subtract 200 if bearing is more than 180

add 180 if the bearing is less than 180

(i) 247 - 200 = 47°

(ii) 328 - 200 = 128°

(iii) 159 + 180 = 339°

(iv) 39 + 180 = 219°

(v) 50 + 180 = 230°

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3 years ago

Lol does anyone have discord

larisa86 [58]

Answer:

I do!

Step-by-step explanation:

7 0

3 years ago

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Okay so m giving a lot of points so here! (My handwriting is bad lol)

lilavasa [31]

11. >

12. >

14. <

15.<

Hopefully this helps :)

8 0

3 years ago

Read 2 more answers