Answer:
19.71 m
Step-by-step explanation:
we have to set up a equation
If you draw a picture to set up the similar parts, it will help you to make a proportion for the equation easier.
using right angle triangle theory
bases = represent the shadows
heights = heights of the tree and the statue
height of tree/height of statue = shadow length of tree /shadow length of statue
Height of tree= shadow length of tree x height of statue /shadow length of statue
Height of tree= 26 x 47/ 71 = 19.71 m
Answer:
![3 \sqrt{5}](https://tex.z-dn.net/?f=3%20%5Csqrt%7B5%7D%20)
Step-by-step explanation:
x is the center of the circle.
the chord of length 12 can be splitted into two parts of 6 length each.
since the radius does not change when it touches another end of the circle, we can safely calculate our radius to be the hypotenuse of the triangle formed by the length of the chord and 3.
The explanation is given in the picture
For this case the real step will be given by:
(9.75) * (2.25) * (10) = $ 219,375
Therefore, the best approximation is given by:
(10) * (2) * (10) = $ 200
The difference is:
219,375 - 200 = $ 19,375
Answer:
the best estimate of how many dollars Irina earns each month is:
10 × 10 × 2 = 200
Aiko is selling books for $12 each. She wants to make more than $180 in book sales. The inequality 12b > 180 can be used to determine the number of books, b, she must sell in order to meet her goal. Which number line best represents the solution to the inequality?
b > 15
Step-by-step explanation:
f(10)=10
f(-2)=-2
f(a)=a
f(a+b)=a+b
g(10)=5×10-12=3
g(-2)=5×(-2)-12=-10-12=-22
g(a)=5×a-12=5a-12
g(a+b)=5×(a+b)-12=5a+5b-12
h(10)=(10)^2 +4(10)-7=100+40-7=133
h(-2)=(-2)^2 +4(-2)-7=4-8-7=-11
h(a)=a^2 +4a -7
h(a+b)=(a+b)^2 +4a+4b-7=a^2+2ab+b^2+4b-7