Answer:
u = x²
Step-by-step explanation:
4x⁴ − 21x² + 20 = 0
4(x²)² − 21x² + 20 = 0
If we substitute u = x²:
4u² − 21u + 20 = 0
Answer:
B. The p-value should be higher than 0.05
Step-by-step explanation:
p-value is smaller than 0.05 means that there is significant difference in mean bicep curls made with right hand and left hand.
Since 95% confidence interval for the true mean difference is given as (-9.242, 0.2472), and confidence interval includes the value 0, we cannot say that there is significant difference. Therefore p-value is not smaller than 0.05, it is higher than 0.05.
Answer:
yes
Step-by-step explanation:
For the given sides to make a triangle.
The sum of any 2 sides must be greater than the third side
10 + 7 = 17 > 11
10 + 11 = 21 > 7
7 + 11 = 18 > 10
Thus the sides 10, 7, 11 will make a triangle
Answer: 78 inches
Step-by-step explanation: looked it up on google
Answer:
66 cm
Step-by-step explanation:
You can find the area of the rectangle by simply multiplying the sides that are complete and don't touch the triangle. That is equal to 60 cm.
To find the area of the triangle, you first have to find the sides. You can find the first side by subtract the top side of the rectangle from the bottom, which gets us 3 (12-9). Then subtract the left side (5) from the right side (9) (9-5), which gets us 4. That would mean that 3*4*1/2 is equal to 6. 6+60 is equal to 66 cm.
Hope that this helps!