Please help due today

46 gottles of geer on the wall

1. 0.9, 1.2, 1.5 --> a right triangle

2. 7, 10, 15 --> not a right triangle

3. 3.1, 5.7, 7.1 --> not a right triangle

4. 1, 2.4, 2.6 --> a right triangle

Step-by-step explanation:

so we have to use the pythagorean theorem for each triangle and see if it works

1) 0.9, 1.2, 1.5

(0.9)²+(1.2)²=(1.5)²

(0.81)+(1.44)=(2.25)

2.25=2.25 --> this one works so it is a right triangle

2) 7, 10, 15

7²+10²=15²

49+100=225

149≠225 --> this one does not work so it is not a right triangle

3) 3.1, 5.7, 7.1

(3.1)²+(5.7)²=(7.1)²

9.61+32.49=50.41

42.1≠50.41 --> this one does not work so it is not a right triangle

4) 1, 2.4, 2.6

(1)²+(2.4)²=(2.6)²

1+5.76=6.76

6.76=6.76 --> this one work so it is a right triangle

according to this law, when unemployment goes up by 1%, gdp drops by 2%. in the question, unemployment rate goes from 2% to 5%, meaning unemployment goes up by 3%, so the gdp drops by 6%. thus the effect is a drop in gdp by 6%.

step-by-step explanation:

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°