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AnnZ [28]
3 years ago
11

PLEASE HELP ASAP 25 PTS + BRAINLIEST TO RIGHT/BEST ANSWER

Mathematics
1 answer:
irina [24]3 years ago
5 0

Answer:

36 +23i

Step-by-step explanation:

(3+8i) (4-3i)

FOIL

first: 3*4 = 12

outer: 3*-3i = -9i

inner: 8i *4 = 32i

last: 8i * -3i = -24i^2 = -24 (-1) = 24

Add these together

12+-9i+32i +24

Combine like terms

36 +23i

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HLEPP PLEASEEEEEEEE hsnsnansh
miss Akunina [59]
M = -1/2
B = 1

Equation shown is y = mx + b
4 0
3 years ago
Next
AveGali [126]

Answer:

C. Robbie's glider

Step-by-step explanation:

P.S -The exact question is -

Given - Melissa and Robbie are flying remote control gliders.

The altitude of Melissa's glider, h(s), in feet, is modeled by this function, where sis time, in seconds, after launch.

m(s) = 0.4(s³ - 11s² + 31s – 1)

The altitude of Robbie's glider is modeled by function r, where sis time, in seconds, after launch.

To find - Which glider reaches the greater maximum altitude in the first 6 seconds after launch?

A. Neither glider reaches a maximum altitude on the given interval.

В. Melissa's glider

C. Robbie's glider

D. Both gliders reach the same altitude on the given interval.

Proof -

At t = 6 sec,

Melisa glider is

h(6) = 0.4((0.6)³ - 11(0.6)² + 31(0.6) – 1)

      = 0.4( 0.216 - 3.96 + 18.6 - 1 )

      = 0.4(13.856) = 5.5424

⇒h(6) = 5.5424

∴ we get

At t = 6 seconds, Melissa glider is at the altitude of 5.54 feet

Now,

From the figure, we can see that,

At t = 6 seconds, Robbie's glider is approximately at an altitude of 13 feet

Now,

As 13 > 5.5

So,

Robbie's glider is at maximum height in 6 seconds after the launch.

So,

The correct option is - C. Robbie's glider

8 0
2 years ago
Please I really need help
viva [34]
You’re answer would be B
3 0
3 years ago
Read 2 more answers
The slope between (250,120) and (300,90)
fgiga [73]

m = − 3/ 5  your welcome

6 0
3 years ago
Read 2 more answers
What's the abswer to 1/2 divided by 5/8 is
posledela
\frac{1}{2} \div  \frac{5}{8} \\ \\  \frac{1}{2} \times  \frac{8}{5} \\ \\  \frac{1 \times 8} {2 \times 5} \\ \\  \frac{8}{10} \\ \\  \frac{4}{5} \\ \\

The final result is: 4/5 or 0.8.
7 0
3 years ago
Read 2 more answers
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