Answer:
cos Θ = 7/25
Step-by-step explanation:
First, we find the hypotenuse.
c² = a² + b²
c² = 7² + 24²
c² = 49 + 576
c² = 625
c = √625
c = 25
cos Θ = adj/opp
cos Θ = 7/25
Answer:
(2+6=8) and 12.3+19=21.3 hope this helps
Step-by-step explanation:
Answer:
Step-by-step explanation:
4 pounds
$9.05 = $1.45x + $3.25
(total cost = 1.45 times pounds, plus flat fee 3.25)
subtract 3.25 from both sides of equation
9.05-3.25=1.45x
$5.80 - = $1.45x, then divide both sides by 1.45
x = 4
Answer:
Step-by-step explanation:
<u>We know that:</u>
<u>Let's first solve for y by choosing any equation.</u>
- 4x + y = 14
- => y = 14 - 4x
<u>Now, let's substitute the value of y into the second equation.</u>
- 6x - 3y = 3
- => 6x - 3(14 - 4x) = 3
- => 6x - 42 + 12x = 3
- => 18x - 42 = 3
- => 18x = 42 + 3
- => 18x = 45
- => x = 45/18 = 5/2 = 2.5
<u>Now, let's substitute the value of x into the equation of y.</u>
- => 14 - 4x = y
- => 14 - 4(2.5) = y
- => 14 - 10 = y
- => y = 4
Hence, the value of x and y are 2.5 and 4 respectively.