Answer:
- <u>80 mi²</u>
- <u>63 in²</u>
- <u>32 m²</u>
- <u>44 cm²</u>
- <u>59.5 ft²</u>
- <u>48 km²</u>
Step-by-step explanation:
<u>Q1</u>
- 8 x 4 + 12 x 4
- 32 + 48
- <u>80 mi²</u>
<u>Q2</u>
- 5 x 3 + 12 x 4
- 15 + 48
- <u>63 in²</u>
<u>Q3</u>
- 4 x 2 + 8 x 3
- 8 + 24
- <u>32 m²</u>
<u>Q4</u>
- 10 x 4 + 2 x 2
- 40 + 4
- <u>44 cm²</u>
<u>Q5</u>
- 5 x 2 + 11 x 4.5
- 10 + 49.5
- <u>59.5 ft²</u>
<u>Q6</u>
- 3 x 1 + 9 x 5
- 3 + 45
- <u>48 km²</u>
Answer:
46
Step-by-step explanation:
We are given that a class's test scores are normally distributed with an average score of 60.
We know that the curve of a normal distribution is symmetric about its mean.
60-14=46
60+14=74
Hence, the point 46 lies to the left of the mean and 74 lies to the right of the mean, and the two points have the same function value.
Equations don't really have x intercepts, functions or curves do. They're also known as the zeros of the function. When we set a function equal to zero we get an equation to solve, and the zeros of the function become the solutions or roots of the equation.
If a quadratic equation only has one root, that's a repeated root corresponding to a discriminant of zero.
In this example our equation is something like , or expanded
The discriminant here is
Answer:
18 is b I think..........
Answer:
t = -1/8.
Step-by-step explanation:
t / 5/12 = -3/10 Invert the 5/12 and multiply:
12t / 5 = -3/10
Cross multiply:
12t * 10 = 5 * -3
120t = -15
t = -15/120 = -1/8.