All categories

3 years ago

Find the missing side lengths.

Mathematics

1 answer:

USPshnik [31]3 years ago

6 0

Answer: A, because it is a 30, 60, 90 triangle. To get the 34 they had to times the number by 2 so you divide that by 2 and it gives you 17 then you have the square root of 3* 17, that doesn’t mathematically work so it stays as 17*the square root of 3

You might be interested in

A snowstorm lasted for three days Dearing the storm 7 inches of snow fell on the first day 5 inches of snow fell on the second d

yanalaym [24]

Answer:

20 inches or 20/1

Step-by-step explanation:

8 0

3 years ago

The half-life of a radioactive substance is the time it takes for a quantity of the substance to decay to half of the initial am

posledela

Step-by-step walkthrough:

Well a standard half-life equation looks like this.

$N = N_0 * (\frac{1}{2})^{t/p$

$N_0$ is the starting amount of parent element.

$N$ is the end amount of parent element

$t$ is the time elapsed

$p$ is a half-life decay period

We know that the starting amount is 74g, and the period for a half-life is 2.8 days.

Therefore you can create a function based off of the original equation, just sub in the values you already know.

$N(t) = 74g * (\frac{1}{2})^{t/2.8days$

This is easy now that we have already made the function. Here we just reuse it, but plug in 2.8 days.

$N(t) = 74g * (\frac{1}{2})^{t/2.8days} = N(2.8days) = 74g * (\frac{1}{2})^{2.8days/2.8days}\\= 74g * \frac{1}{2} = 37g$

Now we just gotta do some algebra. Use the original function but this time, replace $N(t)$ with 10g and solve algebraically.

$10g = 74g * (\frac{1}{2})^{t/2.8days}\\\\\frac{10g}{74g} = (\frac{1}{2})^{t/2.8days}$

Take the log of both sides.

$log(\frac{5}{37}) = log((\frac{1}{2})^{t/2.8days})$

Use the exponent rule for log laws that, $log(b^x) = x*log(b)$

$log(\frac{5}{37}) = \frac{t}{2.8days} * log(\frac{1}{2})$

$\frac{log(\frac{5}{37})}{log(\frac{1}{2})} = \frac{t}{2.8days}$

$2.8 * \frac{log(\frac{5}{37})}{log(\frac{1}{2})} = t$

slap that in your calculator and you get

$t = 8.1 days$

7 0

1 year ago

HELLLLPPPPP PLZZZZZZZ ITS TIMED An 8” candle burns at a rate of one-third of an inch per hour and an 11” candle burns at 1” per

Diano4ka-milaya [45]

It will be 3 hours until they are the same hight

7 0

3 years ago

Jonathan saved money to have a party if he spends to eight of his money on food 1/5 of his money on prices and two tenths of his

erik [133]

Answer:

7/20 is left

Step-by-step explanation:

2/8 (reduced is 1/4) for food

1/5 for prizes

2/10 (reduced is 1/5) for decorations

? for what's left

Add all the fractions up by finding a common denominator.

1/4 + 1/5 + 1/5

5/20 + 4/20 +4/20 = 13/20

He spent 13/20 of his money on this stuff. What part of that is left?

1 - 13/20 (AKA 20/20 - 13/20)

= 7/20

8 0

3 years ago

Solve for x a) 2 b) 8 c) -2 d) -8

DaniilM [7]

Answer:

it's B.) 8

Step-by-step explanation:

the given pair of angles are corresponding angles so, their measures are equal.

=》15x + 10 = 17x - 6

=》10 + 6 = 17x - 15x

=》2x = 16

=》x = 16 ÷ 2

=》x = 8

5 0

2 years ago

Read 2 more answers