Answer:
d = 90°
e = 41°
f = 139°
Step-by-step explanation:
d + 90° = 180° (Angles in linear pair)
-> d = 180° - 90°
-> d = 90°
e = 41° (vertical angles)
f + 41° = 180° (Angles in linear pair)
-> f = 180° - 41°
-> f = 139°
Answer:
5 7/12
Step-by-step explanation:
have a great day :)
Answer:
Solution given:
1:
-1/8=
2. -64/27
=
Express in rational number
1. (-3/2)=-3/2*2/2=-(3*2)*(2/2)=-6/4
2. (1/5)=1/5*5/5=<u>5/25</u>
and
(-4/3)³(2/5)-⁴ ÷ (7/4)
(-4³/3³)(2-⁴/5-⁴)÷7/4
(-64/27)(5⁴/2⁴)÷7/4
(-64/27)(625/16)÷7/4
(-64*625/(27*16))*4/7
-2500/27*4/7
-10000/169
(-100/13)²
Answer:
860cm²
Step-by-step explanation:
1. area of the side triangle:
(15×8)×2= 120×2= 240cm²
there's two side triangles with the same length and width, so just multiply by two.
2. area of the square on top:
20×8= 160cm²
3. area of the rectangle behind:
20×8= 160cm²
4. area of the square below:
20×15= 300cm²
5. the total of all areas (surface area):
240+160+160+300= 860cm²
