Answer:
The length of PR is 15.8 cm
Step-by-step explanation:
We will solve the question using the cosine rule
In ΔPQR
∵ (PR)² = (PQ)² + (RQ)² - 2(PQ)(RQ)(cos∠Q)
∵ PQ = 17.8 cm
∵ RQ = 26.3 cm
∵ m∠Q = 36°
→ Substitute them in the rule above
∵ (PR)² = (17.8)² + (26.3)² - 2(17.8)(26.3)(cos36)
∴ (PR)² = 316.84 + 691.69 - 936.28(cos36)
∴ (PR)² = 251.0635685
→ Take √ for both sides
∴ PR = 15.8449856
→ Correct it to 3 significant figures
∴ PR = 15.8 cm
∴ The length of PR is 15.8 cm
The answer is B. 32
i home this helps
Answer:
99/1 or 99 (proper fraction ig) or 99
Step-by-step explanation:
Slope= y2-y1/ x2-x1
100-1/-96-(-97)=99/1
99/1 or 99
Answer:
0.632 ; 0.233
Step-by-step explanation:
Given that :
Conversation average λ = 1/5 = 0.2
Using the poisson distribution function :
P(x) = 1 - e^(-λ/x)
p(< 5) = 1 - e^-(1/5 * 5)
P(<5) = 1 - e^-1
P(< 5) = 1 - 0.3678794
= 0.6321205
= 0.632
B.) between 5 and 10 minutes
5 < x < 10
P(x< 5) - p(x< 10)
P(< 5) = 1 - 0.3678794 = 0.6321205
P(< 10) = 1 - (e^-1/5 * 10)
P(< 10) = 1 - e^-2 = 1 - 0.1353352 = 0.8646648
P(< 10) - P(<5)
0.8646648 - 0.6321205
=0.2325443
= 0.233
Answer:
4/25
Step-by-step explanation:
All the amount of recipes is 11+10+4=25 . There are 4 recipes for cakes
so probability is 4/25