All categories

4 years ago

Question 2 (1 point)

Mathematics

2 answers:

kirza4 [7]4 years ago

8 0

a^2=b^2+c^2.

27^2=16^2+c^2.

729=256+c^2

c^2=729-256.

c^2=√473.

c=21.74856317~21.7(to nearest tenth).

bonufazy [111]4 years ago

3 0

Step-by-step explanation:

$\blue\star$ By P.G.T

${h}^{2} = {b}^{2} + {p}^{2}$

${27}^{2} = {16}^{2} + {x}^{2}$

$729 = 256 + {x}^{2}$

${x }^{2} = 729 - 256 \\$

$x = \sqrt{473}$

$\huge\boxed{x = 22}$

Hope it helps .

You might be interested in

A true-false quiz with 10 questions was given to a statistics class. Following is the probability distribution for the score of

disa [49]

Answer:

$E(X)=\sum_{i=1}^n X_i P(X_i)$

And if we use the values obtained we got:

$E(X)=5*0.05 +6*0.15 +7*0.33 +8*0.28+ 9*0.12 +10*0.07=7.48$

For this case this value means that the expected score is about 7.48

Step-by-step explanation:

For this case we assume the following probability distribution:

X 5 6 7 8 9 10

P(X) 0.05 0.15 0.33 0.28 0.12 0.07

First we need to find the expected value (first moment) and the second moment in order to find the variance and then the standard deviation.

In order to calculate the expected value we can use the following formula:

$E(X)=\sum_{i=1}^n X_i P(X_i)$

And if we use the values obtained we got:

$E(X)=5*0.05 +6*0.15 +7*0.33 +8*0.28+ 9*0.12 +10*0.07=7.48$

For this case this value means that the expected score is about 7.48

In order to find the standard deviation we need to find first the second moment, given by :

$E(X^2)=\sum_{i=1}^n X^2_i P(X_i)$

And using the formula we got:

$E(X^2)=(5^2 *0.05)+(6^2 *0.15)+(7^2 *0.33)+(8^2 *0.28)+ (9^2 *0.12 +(10^2 *0.07))=57.46$

Then we can find the variance with the following formula:

$Var(X)=E(X^2)-[E(X)]^2 =57.46-(7.48)^2 =1.5096$

And then the standard deviation would be given by:

$Sd(X)=\sqrt{Var(X)}=\sqrt{1.5096}=1.229$

5 0

4 years ago

Read 2 more answers

The element gold occurs in which period?<br><br> 4th<br> 5th<br> 6th<br> 7th

NikAS [45]

The element gold (au) occurs in the 6th period

3 0

3 years ago

Read 2 more answers

Can. Y’all help with this

solmaris [256]

Answer:

Your Answer Would be the 3rd Option.

Step-by-step explanation:

The Initial Value is : 4. All you have to do is look for when the x = 0

ROC: 1/2. Minutes =x, Inches= Y. To find ROC, take

Y2 - Y1

----------

X2 - Y1

Replacing those with numbers:

5 - 4

-------

2 - 0

Your ROC is 1/2 .

Equation:

y= 1/2x + 4

Know that The 4 is the initial value, so it's always in that spot. Your ROC is always Next to the x, which also means it's the slope.

7 0

3 years ago

5. Ashley runs 5/8 miles in 4 minutes 30 seconds. Josh runs 3/4 mile in 5 minutes 15 seconds. Who

sp2606 [1]

Answer:

Step-by-step explanation:

5 0

3 years ago

Which could be the entire interval over which the function, f(x), is positive? a 2-column table with 8 rows. the first column is

Brut [27]

The entire interval over which the function, f(x), is positive is (-∞,1).

<h3>What is a function?</h3>

A mathematical phrase, rule, or law that establishes the link between an independent variable and a dependent variable. In mathematics, functions exist everywhere, and they are crucial for constructing physical links in the sciences.

Each element of X receives exactly one element of Y when a function from one set to the other is used. The set X is referred to as the function's domain, while the set Y is referred to as the function's codomain.

According to the question,

The function has positive values corresponding to the interval from negative infinity to one.

Learn more about functions here:

brainly.com/question/6561461

#SPJ4

7 0

2 years ago