-2-3x=3+1x
-2-3=1x+3x
-5=4x
x=-1.25
Answer:
178.3 mm²
Explanation:
The surface area of the regular pyramid is equal to the sum of the base and lateral areas:()
Answer:
I’m pretty sure it’s Triangle ABC is congruent to Triangle DEF.
Step-by-step explanation:
If you rotate Triangle DEF to where the 90 degree angle is on the bottom right, you can the compare the two triangles. You can divide 300/25, 240/20, and 180/15. They all result in 12 meaning they are congruent and similar in that way. (I’m only 90% this is right btw)
Answer:
a) 137.9°
b) 12.2° (please refer to explanation because I didn't know what to round to)
Step-by-step explanation:
1a) A supplementary angle will equal 180°, so you must subtract 42.1 from 180
180-42.1 = 137.9
1b) A complementary angle will equal 90°, so you need to use the expression given and add an x for the other part of 90°
8x-20+x = 90
9x-20=90
9x=110
x=12.2
ANSWER:
According to question, our g(x) becomes f(x) - 5.
When x = 1,
f(x) - 5 = 5 - 5 = 0.
When x = 2,
f(x) - 5 = 7 - 5 = 2.
When x = 3,
f(x) - 5 = 11 - 5 = 6.
When x = 4,
f(x) - 5 = 19 - 5 = 14.
So, <u>Correct choice</u> - [D]
