Answer:
yes
Step-by-step explanation:
Answer:
a and b are equivalent.
c, d and e are not equivalent.
So, 2 equivalent expression for c and are,
c.
( i ) 2 ( x + 2 )
( ii ) ( 4x + 8 ) / 2
d.
( i ) 3x + 16
( ii ) ( 6x + 32 ) / 2
Step-by-step explanation:
a.
2 ( x + 4 )
= 2 ( x ) + 2 ( 4 )
= 2x + 8
b.
8 + 2x can also be written as 2x + 8.
d.
3 ( x + 4 ) + ( 4 + x )
= 3 ( x ) + 3 ( 4 ) + 4 + x
= 3x + 12 + 4
= 3x + 16
Answer;
-x-1
Step-by-step explanation:
x +4
-2x-5
= -x -1
am not sure check if my answer is correct
Answer:
AB = 133m
Step-by-step explanation:
You can notice the ratio of AE to DE is the same as the ratio from BE to CE(3.5). We can also say angle AEB is congruent to angle DEC because they are vertical angles. Now, because of SAS similarity, you can say triangle AEB and DEC are similar. We can set up these proportions from the definition of similar triangles:
DE / AE = BE / CE = DC / AB
And we can plug in the values we have:
42 / 147 = 36 / 126 = 38 / AB
2 / 7 = 2 / 7 = 38 / AB
We can cross-multiply to get:
2AB = 7 * 38
2AB = 266
AB = 133 m
Answer:
The answers are respectively 45, 62.5 and 27.5 degrees.
Step-by-step explanation:
According to the given explanation and the formula in the question to calculate the temperatures in a city, the maximum afternoon temperatures for March, August and October respectively are;
March: For March, x = 3 and cos(
) or cos(
) is equal to 0 so when inserted into the equation we find that t = 45 - 35.0 = 45
August: For August, x = 8 and cos(
) is equal to -0.5 so when inserted into the equation we find that t = 45 - 35.(-0.5) = 62.5
October: For October, x = 10 and cos(
) is equal to 0.5 so when inserted into the equation we find that t = 45 - 35.(0.5) = 27.5
I hope this answer helps.
