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kykrilka [37]
2 years ago
13

Find 1 + 3 + 5 + … + 389.

Mathematics
2 answers:
Triss [41]2 years ago
6 0

Answer:

398 i think

Step-by-step explanation:

user100 [1]2 years ago
3 0

Answer:

The rule is +2

This is the 194th term

Step-by-step explanation:

This is an arithmetic sequence because 2 is added every time.

2x + 1 = 389

2x = 388

x = 194

194* 2 + 1 = 389

mark brainliest please!

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alexandr402 [8]

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Step-by-step explanation:

this first part is

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3 years ago
I don’t understand this I’ve tried a lot of answers that made sense to me but none are right, can someone please help me?
Ray Of Light [21]

Answer:

-4

Step-by-step explanation:

Low tide is 1 ft below average water level.

High tide is 5 ft higher than low tide.

High tide is 5 ft higher than low tide. Start at low tide. Use 1 ft of the 5 ft to go up to average water level. You still have 4 ft more to go to high tide. That means high tide is 4 ft above average water level. Then, the average water level is 4 ft below high tide. A height below another height is is a negative number of feet from that height. Since the average water height is 4 ft BELOW high tide, then relative to high tide, the average water level is -4 ft.

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3 0
4 years ago
If the volume is 18 density is 1.0 what is the mass
Leviafan [203]

Answer:

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Step-by-step explanation:

Formula:

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4 0
3 years ago
Find b, given that a = 20, angle A = 30°, and angle B = 45° in triangle ABC
Kamila [148]
<span>The side b is opposite to the angle B, applying the law of the sines, we have:

</span>\frac{a}{sinA} = \frac{b}{sinB}
\frac{20}{sin30^0} = \frac{b}{sin45^0}
\frac{20}{ \frac{1}{2} } = \frac{b}{ \frac{ \sqrt{2} }{2} }
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\frac{20 \sqrt{2} }{2} = \frac{b}{2}
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2b = 40 \sqrt{2}
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6 0
3 years ago
Read 2 more answers
Ab+d=5c solve for b.
Law Incorporation [45]

Answer:

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Step-by-step explanation:

First you would bring the d to the right side of the equation

ab=5c -d

Then, you will divide the right side of the equation by a to find the value of b

(5c-d)/a =b

Hope this helps!!!

6 0
3 years ago
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