Answer:
14. 6 × 10^7
15. 6 × 10^14
16. 7.2 × 10^-7
17. 8.5 × 10^-2
18. 23 × 10^5, 6.9 × 10^6, 72 × 10^5
19. 1.89 × 10^-4, 2.5 × 10^-4, 19 × 10^-3
20. 3.125 × 10^-5
21. 3.1536 × 10^9
Step-by-step explanation:
14.
- (2 × 10^5)(3 × 10^2)
- (200000)(3 × 10^2)
- (200000)(300)
- 60000000
- 6 × 10^7
15.
- (1.5 × 10^5)(4 × 10^9)
- (150000)(4 × 10^9)
- (150000)(4000000000)
- 6e + 14
16.
- (6 × 10^-4)(1.2 × 10^-3)
- (0.0006)(1.2 × 10^-3)
- (0.0006)(0.0012)
- 7.2e-7
- 7.2 × 10^-7
17.
- (5 × 10^3)(1.7 × 10^-5)
- (5000)(1.7 × 10^-5)
- (5000)(0.000017)
- 0.085
- 8.5 × 10^-2
18.
- 72 × 10^5 = 7200000
- 6.9 × 10^6 = 6900000
- 23 × 10^5 = 2300000
- 23 × 10^5, 6.9 × 10^6, 72 × 10^5
19.
- 19 × 10^-3 = 0.019
- 2.5 × 10^-4 = 0.00025
- 1.89 × 10^-4 = 0.000189
- 1.89 × 10^-4, 2.5 × 10^-4, 19 × 10^-3
Answer:
The answer is ∠7 ≅ ∠4 is not true
Step-by-step explanation:
∵ l // n
∴ ∠2 = ∠6 ⇒ corresponding angles
∵ ∠6 = ∠8 ⇒ vertically opposite angles
∴ ∠8 = ∠2
∵ ∠5 = ∠3 ⇒ alternate angles
∵ ∠4 + ∠5 = 180° ⇒ interior supplementary angles
∵ ∠7 = ∠5 ⇒ vertically opposite angles
∴ ∠4 + ∠7 = 180°
∴ ∠7 ≠ ∠4
Answer:
yes
Step-by-step explanation:
just plug in
2+3 is equal to 5 so that works
4(2)+13(3) is greater than 20 so that also works
To solve this problem you can use proportions. The shadow of the water tower and light post are a match, and the height of the water tower and light post are a match. Since we are finding the height of the light post we can replace it with x. The proportion can be set up like this: x/32=7/14. First, multiply 32 and 7 which equals 224. Then take 224 and divide it by the leftover number, 14, and you get 16. So, the answer is c).
