Answer:
15 because 3 x 5 equals 15
Step-by-step explanation:
₇P₅ is a permutation. you can find this setting in the statistics menu of your scientific calculator (i think).
If you don't have a scientific calculator, you can use the following formula:
nPr = 
₇P₅ = 
= 
= 
= 7 * 6 * 5 * 4 * 3
= 2520
Answer: C
Answer:



Step-by-step explanation:
The picture of the question in the attached figure
step 1
In the right triangle ABD
Applying the Pythagorean Theorem


----> equation A
step 2
In the right triangle BDC
Applying the Pythagorean Theorem


----> equation B
step 3
In the right triangle ABC
Applying the Pythagorean Theorem

----> equation C
step 4
Equate equation A and equation B

-----> equation D
step 5
substitute equation D in equation C

solve for z




simplify

Find the value of x



Find the value of y





Answer:
5
Step-by-step explanation: