Answer:
16 units
Step-by-step explanation:
RST was dilated by a scale factor of 1/2. This means R'S'T' has sides that are 1/2 the length of the sides of RST.
Since the legs of R'S'T' are 8 units, this gives us the equation
8 = 1/2x
Divide both sides by 1/2:
8÷1/2 = x
8 × 2/1 = x
16 = x
Each leg in RST is 16 units.
Answer:
The teacher select a sample of n =15 students. And he wanted to know if teaching a smaller class was more effective and students performed better, that means if 
and he obtaind a sample mean of 
.
Based on this the correct system of hypothesis are:
Null hypothesis: 
Alternative hypothesis:
And the best option for this case is:
a. H0:
vs. H1:
.
Step-by-step explanation:
For this case we have the following previous info given:
represent the true mean
represent the true deviation
The teacher select a sample of n =15 students. And he wanted to know if teaching a smaller class was more effective and students performed better, that means if and he obtaind a sample mean of .
Based on this the correct system of hypothesis are:
Null hypothesis:
Alternative hypothesis:
And the best option for this case is:
a. H0: vs. H1: .
Answer:
Y=n^2+n
Step-by-step explanation:
Is there anyway you can take another picture so that I can see it
1. Add: <span>45</span><span> + </span><span>56</span><span> = </span><span>4 · 65 · 6</span><span> + </span><span>5 · 56 · 5</span><span> = </span><span>2430</span><span> + </span><span>2530</span><span> = </span><span>24 + 2530</span><span> = </span><span>4930
</span>
2. Add: <span>4930</span><span> + </span><span>72</span><span> = </span><span>4930</span><span> + </span><span>7 · 152 · 15</span><span> = </span><span>4930</span><span> + </span><span>10530</span><span> = </span><span>49 + 10530</span><span> = </span><span>15430</span><span> = </span><span>7715
4/5 + 5/6 + 7/2 = 7715 = 5215 ≅ 5.133333
</span>
The answer is 5.13
