All categories

3 years ago

I need help finishing RT. Please help. I do not know what to do. Any help will be appreciated:))

Mathematics

1 answer:

Advocard [28]3 years ago

6 0

Answer:

RT = 86

Step-by-step explanation:

Here, we want to find the value of RT

looking at the given triangle, we can deduce that the smaller triangle SPQ is half the measure of the bigger triangle SRT

what this mean is that we have to multiply the dimensions on SPQ by 2 to get the equivalent dimensions of similar sides in SRT

Thus, we have it that;

2(15x -17) = 23x -6

30x - 34 = 23x -6

30x -23x = -6 + 34

7x = 28

x = 28/7

x = 4

So, we make a substitution

for RT;

23x-6

= 23(4) - 6 = 92-6 = 86

You might be interested in

PLEASE HELP URGENTttttttt

bezimeni [28]

Y=2/3x - 1
written in slope intercept form

8 0

4 years ago

The lifetime of a certain type of battery is normally distributed with mean value 11 hours and standard deviation 1 hour. There

tankabanditka [31]

Answer:

The lifetime value needed is 11.8225 hours.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by

$Z = \frac{X - \mu}{\sigma}$

After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we This p-value is the probability that the value of the measure is greater than X.

In this problem, we have that:

The lifetime of a certain type of battery is normally distributed with mean value 11 hours and standard deviation 1 hour. This means that $\mu = 11, \sigma = 1$ .

What lifetime value is such that the total lifetime of all batteries in a package exceeds that value for only 5% of all packages?

This is the value of THE MEAN SAMPLE X when Z has a pvalue of 0.95. That is between Z = 1.64 and Z = 1.65. So we use $Z = 1.645$

Since we need the mean sample, we need to find the standard deviation of the sample, that is:

$s = \frac{\sigma}{\sqrt{4}} = 0.5$

So:

$Z = \frac{X - \mu}{s}$

$1.645 = \frac{X - 11}{0.5}$

$X - 11 = 0.5*1.645$

$X = 11.8225$

The lifetime value needed is 11.8225 hours.

3 0

3 years ago

If w 1,-5> and y=<2,3>,find 2w+y

kolezko [41]

Answer:

Step-by-step explanation:

Yes

But no

But yes

=mum

7 0

3 years ago

(27 ΔWXY 2 ΔWXZ W γ (20y + 10) 19 19 X 3y +7 Z

daser333 [38]

Answer: B

Step-by-step explanation: Always B

4 0

3 years ago

Please help whoever answers this correctly I'll mark your answer brainliest

djyliett [7]

Answer: The 2nd and 3rd one are correct

Step-by-step explanation:

After reflecting it, the square itself would not change, only the position of the square. Therefore, the same line segments from the beginning which were given would be parallel.

6 0

2 years ago

Read 2 more answers