Answer:
its C
Step-by-step explanation:
because 180⁰-40⁰=140⁰
Answer:
.375
Step-by-step explanation:
divide 3 by 8
Answer:
<u>Given expression:</u>
<u>The first root is valid when:</u>
- 2x + 2 ≥ 0 ⇒ 2x ≥ - 2 ⇒ x ≥ - 1
<u>The second root is valid when:</u>
- 6 - 4x ≥ 0 ⇒ 4x ≤ 6 ⇒ x ≤ 1.5
<u>So the variable x can get values within interval:</u>
- -1 ≤ x ≤ 1.5 or
- x = [-1, 1.5]
Answer:
The correct option is B.
Step-by-step explanation:
It is given that there is a strong, negative, linear relationship between x and y. where, x is the number of consecutive hours a worker has been assembling chainsaws and y is the number of chainsaws he can produce in an hour.
He finds that 70%of the variation in chainsaws produced per hour can be explained by the regression of y on x.
![y=-\frac{70}{100}x](https://tex.z-dn.net/?f=y%3D-%5Cfrac%7B70%7D%7B100%7Dx)
![y=-0.7x](https://tex.z-dn.net/?f=y%3D-0.7x)
The slope is -0.7, therefore option B is correct.
Answer:
![3 \: s](https://tex.z-dn.net/?f=3%20%5C%3A%20s)
Step-by-step explanation:
![y = - 16 {x}^{2} + 32x + 48 \\ 0 = \frac{ - 16 {x}^{2} + 32x + 48 }{ - 16} \\0 = {x}^{2} - 2x - 3 \\ 0= {x}^{2} - 3x + x - 3 \\ 0= x(x - 3) + 1(x - 3) \\0 = (x + 1)(x - 3) \\ \\ x + 1 = 0 \\ x = - 1 \\ x - 3 = 0 \\ x = 3](https://tex.z-dn.net/?f=y%20%3D%20%20-%2016%20%7Bx%7D%5E%7B2%7D%20%20%2B%2032x%20%2B%2048%20%5C%5C%200%20%3D%20%20%5Cfrac%7B%20-%2016%20%7Bx%7D%5E%7B2%7D%20%2B%2032x%20%2B%2048%20%7D%7B%20-%2016%7D%20%20%5C%5C0%20%20%3D%20%20%7Bx%7D%5E%7B2%7D%20%20%20-%202x%20-%203%20%5C%5C%20%20%200%3D%20%7Bx%7D%5E%7B2%7D%20%20-%203x%20%2B%20x%20-%203%20%5C%5C%20%200%3D%20x%28x%20-%203%29%20%20%2B%201%28x%20-%203%29%20%5C%5C0%20%20%3D%20%28x%20%2B%201%29%28x%20-%203%29%20%5C%5C%20%20%5C%5C%20x%20%2B%201%20%3D%200%20%20%5C%5C%20x%20%3D%20%20-%201%20%5C%5C%20x%20-%203%20%3D%200%20%5C%5C%20x%20%3D%203)
Hope this helps you.
<em>Can</em><em> </em><em>I</em><em> </em><em>have</em><em> </em><em>the</em><em> </em><em>brainliest</em><em> </em><em>please</em><em>?</em>