Answer:
9
Step-by-step explanation:
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
Answer:
0
Step-by-step explanation:
The + on the zero means the limit as x approaches 0 from the right side
<u>Answer:</u>
B. She multiplied the dividend by 100 instead of 10.
<u>Step-by-step explanation:</u>
Ella had to divide by . To make it easier to divide, she thought of multiplying both the dividend and the divisor by 10.
Ella multiplied the divisor by 10 but mistakenly she multiplied the dividend by 100 instead of 10.
So her division problem changed totally.
Therefore, the correct answer option is B. She multiplied the dividend by 100 instead of 10.