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SOVA2 [1]
3 years ago
7

Need more points ??? solve this .....only first part for 50 points .....and follow me also!​

Mathematics
1 answer:
leonid [27]3 years ago
7 0

Answer:

see below

Step-by-step explanation:

i.

= √(3 + 4i)

= 2 + i

ii.

= √(-8 + 6i)

= √2(-4 + 3i)

iii.

= √(-40 - 42i)

= √-2(20 + 21i)

iv.

= √i

= √i

v.

= \sqrt{\frac{2 + 3i}{5 - 4i} } +\sqrt{\frac{2-3i}{5+4i} }

= \sqrt{\frac{-2+23i}{41} } +\sqrt{\frac{2-3i}{46} }

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An acute triangle has sides measuring 10 cm and 16 cm. The length of the third side is unknown. Which best describes the range o
Karo-lina-s [1.5K]

Solution:

12.5 < x < 18.9

Reason:

To solve this problem, we can apply Pythagorean's theorem.

To find the upper bound:

We can set the two given legs as the 2 legs of a right triangle. This allows us to keep the angle under 90 degrees. So if we set the legs to be 10 and 16, then the third side must be:

10^2 + 16^2 = x^2

x^2 = 356

x is roughly equal to 18.9

For the lower bound, this time, we set x as one of the legs, and 10 as the other let. Since we know that the longest side is 16, we can set up an equation again:

x^2 + 10^2 = 16^2

x^2 = 16^2 - 10^2

x^2 = 156

x is roughly equal to 12.5

So we have found the bounds to be 12.5 < x < 18.9

3 0
3 years ago
A 75.0 kg person steps on a scale in an elevator. The scale reads 761 N. What is the magnitude of the acceleration of the elevat
chubhunter [2.5K]
You can use Newton's law, Resultant force=Mass×Acceleration.To find the acceleration take force over mass of the person which is 761N÷75.0kg.Hope this helps.
5 0
4 years ago
If the midpoint of a line segment is (-1,1) and one endpoint is (-3,-10) what is the other endpoint?
katrin2010 [14]

Answer:

Step-by-step explanation:

(x - 3)/2 = -1

x - 3 = -2

x = 1

(y - 10)/2 = 1

y - 10 = 2

y = 12

(1, 12)

7 0
3 years ago
Mr. Stanton bought 2.6 yards of fabric for $8.94. About how much was the cost per yard?
nlexa [21]

8.94/2.6 equals 3.44

$3.44

5 0
3 years ago
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Keegan deposits into her savings account at the beginning of the year. The account earns 3% simple interest each year. She has $
fiasKO [112]

Answer:

She deposits $350 into the account at the beginning of the year.

Step-by-step explanation:

Let us assume that Keegan deposits $P into her savings account at the beginning of the year.

The account earns 3% simple interest each year and she has $360.50 in her account at the end of the year.

If Keegan did not make any additional deposits or withdrawals during the year.

So, we can write that P[1+\frac{3}{100} ]= 360.50

⇒ P = $350 (Answer)

7 0
3 years ago
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