A is 6, a = 6
b = -1 - 7a
b = -1 - 7(6)
b = -1 - 42
b = -43
Answer:
x m tall 10 m tall
--------------- = ------------
140 m shadow 4 m shadow
The height of the Stratosphere Tower is 350 m
Step-by-step explanation:
We can use proportions to solve this problem. Put the height of the object over the length of the shadow.
x m tall 10 m tall
--------------- = ------------
140 m shadow 4 m shadow
Using cross products
x*4 = 10 * 140
4x =1400
Divide by 4
4x/4 = 1400/4
x =350
The height of the Stratosphere Tower is 350 m
The length is 20 ft. 10ft times 20ft = 200ft^2
9514 1404 393
Answer:
y = 26
Step-by-step explanation:
You have already correctly solved for x, so you know that ...
m∠8 = 4(17)+10 = 78
Angle 12 is an alternate interior angle with respect to angle 8, so is congruent to angle 8.
m∠12 = m∠8
3y = 78
y = 78/3 . . . . divide by the coefficient of y
y = 26