All categories

3 years ago

Solve for x in the diagram.

Mathematics

2 answers:

Step2247 [10]3 years ago

5 0

Answer:

x = 15

Step-by-step explanation:

Using Pythagorean Theorem

=> $c^2 = a^2+b^2$

Where c= x, a = 12, b = 9

=> $x^2 = (12)^2+(9)^2$

=> $x^2 = 144+81$

=> $x^2 = 225$

Taking sqrt on both sides

=> x = 15

storchak [24]3 years ago

5 0

12^2-9^2 =63
Square root of 63 is 7.93725...
Answer is 7.94 rounded up

You might be interested in

What is 64÷8 (12-2)+5 using pemdas please show work

Ne4ueva [31]

Parenthesis first so, 64/8(10)+5, next 64/8 because it's division and it's first, 8(10)+5, next is 8(10) so 80+5, lastly 80+5 is 85.

8 0

3 years ago

Read 2 more answers

Eight minus the product of two and a number x.

sergij07 [2.7K]

The number x is a -8

8 0

3 years ago

Write 0.63 as a fraction in simplest form.

Annette [7]

63/100?

no te entiendo hablo español bro srry :(

3 0

3 years ago

Read 2 more answers

Helpp find the slope 1. -1/2 2. -2 3. 1/2 4. 2

makkiz [27]

Answer:

1. -1/2 is the answer

Step-by-step explanation:

7 0

3 years ago

It was reported that 23% of U.S. adult cellphone owners called a friend for advice about a purchase while in a store. If a sampl

leva [86]

Answer:

$P(X=7)$

And using the probability mass function we got:

$P(X=7)=(15C7)(0.23)^7 (1-0.23)^{15-7}=0.0271$

Step-by-step explanation:

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=15, p=0.23)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

And we want to find the following probability:

$P(X=7)$

And using the probability mass function we got:

$P(X=7)=(15C7)(0.23)^7 (1-0.23)^{15-7}=0.0271$

5 0

3 years ago