Answer:
Part 1) 
Part 2) 
Step-by-step explanation:
Part 1) we know that
To put factor back into the square root, we have to put squared value
we have

Remember that

substitute in the expression above

Part 2) we have

Solve for x
That means----> Isolate the variable x
Multiply in cross

Apply distributive property

Group terms

Factor x left side

Divide by (2c-ab) both sides

We are given with the number of jumps per student. To get the mean, we simply have to add all of them and divide by the number of students
mean number of jumps = <span>203 + 245 + 237 + 233 + 90 + 100 + 100 + 277 + 265 + 264 + 265 + 285 + 288 + 291 + 291 + 290 + 300 + 224 + 200 + 257 + 290 + 279 + 266 + 288) / 24
To get th median, arrange the data from lowest to highest and determine the middle value.</span>
Answer:
9
Step-by-step explanation:
18+45 is 63
2+5 is 7
63/7 is 9
x=9
Answer:
it's false
the true is -1/2
Step-by-step explanation:
-5/2-2+4=-1/2
Step-by-step explanation:
It equals 5/10 That's the answer for you!