Erica had 6 coins in her coin collection. she goes to a coin show and buys some coins. how many dose she have now?

1 answer:

3 0

Since, it is not given how many coins did Erica buy at the coin show, so, we can suppose that Erica bought "n" coins from the coin show.

Now, we know that Erica already had 6 coins in her coin collection before she went to the coin show and bought the "n" coins.

Therefore, the total number of coins that Erica will have in her possession after buying "n" coins from the coin show will be 6+n.

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A television is identified by the diagonal measurement of the of screen. A television has a 36 inch screen whose height is 22 in

GuDViN [60]

Answer:

28.5 inches.

Step-by-step explanation:

Given: Measurement of diagonal= 36 inch.

Height= 22 inches

Picture attached to show the measurement.

As the screen of televison is measured by diagonal of screen.

∴ Hypotenous= diagonal of screen, which is 36 inches.

Now, using pythagorean theoram to find length of television screen.

$hypotenous^{2} = opposite^{2}+adjacent^{2}$

∴ $36^{2} = 22^{2} + adjacent^{2}$

Here adjacent is the length of television.

⇒ $1296= 484+ length^{2}$

Subtracting both side by 484.

⇒ $length^{2} = 812$

Taking square root on both side

remember: $\sqrt{a^{2} } = a$

∴ $length= \sqrt{812}= 28.495 \approx 28.5$

Hence, length of televison screen is 28.5 inches.

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4 years ago

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kykrilka [37]

Answer:

SAS

Step-by-step explanation:

One of the postulates is called SAS and it states that if two triangles have 2 sides with the same length and the angles between the two sides are the same then the two triangles are congruent. This is exactly what we see on the diagram shown in the question, therefore the correct postulate is SAS

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3 years ago

For normal distribution with mean μ = 400 and standard deviation σ = 100 find probability that x is greater than 619: p(x > 6

denis23 [38]

A suitable calculator shows p(x > 619) ≈ 1.43%.