Given:
425 school children
Teacher : 80
Doctor : 105
Lawyer : 70
Police Officer : 70
Firefighter : 100
Total = 425
After applying Pearson's chi-squared test, it is concluded that this data reflects a real difference in the population.
Answer:
m<A = 30 degrees.
Step-by-step explanation:
m < C in triangle ABC = m < C in EDC so
x + 13 + 42 + x + 13 = 180
2x = 180 - 13 - 13 - 42
2x = 112
x = 56.
So m < C = 56+13 = 69.
m < B = m < D = 81
M < A = 180 - 69 - 81
= 180 - 150 = 30.
Answer:
7920 yards
Step-by-step explanation:
just use a calculator next time. Do miles to yards converter in :)
Answer:
18
Step-by-step explanation:
24=8×3
If F=24 when A=8 then F is directly proportional to A•3
Answer:
y=x+1
Step-by-step explanation:
1) <u>Find the </u><u>slope</u>
m=-3-4/-4-3
m=-7/-7
m=1
2) <u>Use </u><u>y</u><u>=mx+</u><u>c</u>
<u>by </u><u>using </u><u>the </u><u>point </u><u>(</u><u>3</u><u>,</u><u>4</u><u>)</u>
<u>4</u><u>=</u><u>1</u><u>(</u><u>3</u><u>)</u><u>+</u><u>c</u>
<u>4</u><u>=</u><u>3</u><u>+</u><u>c</u>
<u>c=</u><u>1</u>
3) <u>The </u><u>answer</u>
y=x+1