Answer and work down below. Let me know if you have any questions
Answer:
36 cm^3
Step-by-step explanation:
Area of right triangle ends 1/2 b * h = 1/2 * 3 * 4 = 6 cm^2
area * height = volume
6 x 6 = 36 cm^3
Answer:
<u>The value of Y is - 9.</u>
Step-by-step explanation:
1. Let's start with the first equation to find out the value of Y.
7x + 2y = 3
2y = 3 - 7x
<u>y = 3/2 - 3 1/2x</u>
<u>2. </u>Now let's work with the second equation to find out the value of Y.
x - 3y = 30
x - 3 (3/2 - 3 1/2x) = 30
x - 9/2 + 21/2 x = 30
x + 21/2 x = 30 + 9/2
2x + 21x = 60 + 9
23x = 69
<u>x = 69/23</u>
<u>x = 3</u>
<u>3.</u> Now let's substitute the value of X in the first equation, to find out the value of Y.
7 (3) + 2y = 3
21 + 2y = 3
2y = 3 - 21
<u>2y = -18</u>
<u>y = - 9</u>
<u>4. </u>Proof of the values of X and Y on the second equation
x - 3y = 30 (x = 3 and y = -9)
3 - 3 (-9) = 30
3 + 27 = 30
<u>30 = 30 This means that the values of x and y are correct.</u>
Answer:
k=20t/a
Step-by-step explanation:
20t=ak
20t/a=k
k=20t/a
Answer: m=
1
3
√2 or m=
−1
3
√2
Step-by-step explanation: