Answer:
100 miles
Step-by-step explanation:
so firstly we can use x to indicate the amount of miles, so we want them to have the same value.
eventually: 120+0.6*x=60+0.9*x
0.6*x-0.9*x=90-120
-0.3*x=-30
so x equals 100
Nathan has a 25% chance of NOT being allergic to the drug. And then that 25% is 98% accurate so:
25% x 98%
0.25 x 0.95 (changed to decimals)
= B) 0.2450
Answer:
Step-by-step explanation:
(x2 - y2)2 + (2xy)2 = (x2 + y2)2
1. Let x = 2 and y = 1 .
2. x must be greater than y
- as the sides of a triangle must be positive.
We can enter any positive integer values for x and y as long as x > y because we are dealing with an identity.
3. Then substituting, we have
(2^2 - 1^2)^2 + (2*2*1)^2 = (2^2 + 1^2)^2
3^2 + 4^2 = 5^2
9 + 16 = 25
25=25
So the triple is 3,4 and 5.
4. At least one leg must be even because one term (2xy) must be even - multiplying by 2 always gives an even value.
Answer:
8.64 hours, so
8 hours, 38 mins, 24 seconds
Just find that 27% you have left, then find how much that 27% is in terms of time.
It might be wrong so double check it please.
Answer:
Step-by-step explanation:
see the attached figure with letters to better understand the problem
step 1
In the right triangle ACD
Find the length side AC
Applying the Pythagorean Theorem
substitute the given values
simplify
step 2
In the right triangle ACD
Find the cosine of angle CAD
substitute the given values
----> equation A
step 3
In the right triangle ABC
Find the cosine of angle BAC
substitute the given values
----> equation B
step 4
Find the value of x
In this problem
----> is the same angle
so
equate equation A and equation B
solve for x
Multiply in cross
step 5
Find the length of BC
In the right triangle BCD
Applying the Pythagorean Theorem
substitute the given values
simplify