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ser-zykov [4K]
3 years ago
6

Solve the formula for n. A=P sqrt2+n

Mathematics
1 answer:
jekas [21]3 years ago
6 0

Answer:

n = (A/P)² - 2

Step-by-step explanation:

I will assume that you meant  A=P sqrt(2+n).

Squaring both sides, we get A² = P²(2 + n), or

2 + n = (A/P)²

Then n = (A/P)² - 2

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Your team wins 18 medals at a competition. The metals are gold, silver, and bronze in a ratio of 2:4:3. How many of each metal d
Anarel [89]

Answer

Find out the how many of each metal did your team win.

To prove

As given

Your team wins 18 medals at a competition.

The metals are gold, silver, and bronze in a ratio of 2:4:3.

Let us assume that x be the scalar multiple of the gold, silver and bronze medal.

Thus

Number of gold medal = 2x

Number of silver medal = 4x

Number of bronze medal = 3x

Than the equation becomes

2x + 4x + 3x = 18

9x = 18

x = \frac{18}{9}

x = 2

Number of gold medal = 2 × 2

                                      = 4

Number of silver medal = 4 × 2

                                       = 8

Number of bronze medal = 3 × 2

                                           = 6

Therefore the number of gold medal are 4, silver medal are 8, bronze medal are 6.

3 0
3 years ago
4 tomatoes cost 3.40. What is the unit rate?
Romashka-Z-Leto [24]
3.40/4= $0.85 per tomato
8 0
3 years ago
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Jane will draw one card from the regular deck of 52 cards. In how many ways can she choose a jack or a black card?
elena-s [515]

Answer:

28

Step-by-step explanation:

In a regular 52 card deck, 26 are black (clubs or spades).  Additionally, there are two red jacks (diamonds and hearts).  This equals 28/52.  As a probability, it would be 28/52=14/26=7/13.  This could also be expressed as a percentage or decimal.  0.538 or 53.8%.  But the question asks <em>how many ways</em> can she choose a jack or black card, so I’m assuming they don’t want the probability, just the number, which is 28.

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Integrate t sec^2 (2t) dt
Neporo4naja [7]
F = t ⇨ df = dt 
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⇔ 
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As integral of tan u = - ln (cos (u)), you get : 

integral of t sec² 2t dt = (1/4) ln (cos (u)) + (1/2) t tan 2t + constant 
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9x - 24 + 4x = -24 + 14x - x

13x - 24 = 13x - 24

0 = 0

Answer is All real numbers

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