Answer:
C is the answer
Step-by-step explanation:
Garden dimensions:
y = width, 4y = length (because it says the length is four times the width)
equation:
y + y + 4y + 4y = 70
=> 10y = 70
=> y =70
Hope this helps! :3
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Answer:
When x=1, y=4 (1,4)
Step-by-step explanation:
Answer:
8) v = 312
9) s = -12/13
Step-by-step explanation:
8) Multiply left and right by -14, then you get
v-18 = -21*-14
v-18 = 294
Add 18 left and right:
v = 294 + 18
v = 312
9) Add 26 left and right
-13s = -14 + 26
-13s = 12
Divide left and right by -13
s = -12/13
Answer:
43.60°
Step-by-step explanation:
We can solve the triangle using the trigonometrical ratios which may be expressed in the form SOA CAH TOA Where,
Sin Ф = opposite side/hypotenuses side
Cosine Ф = adjacent side/hypotenuses side
Tangent Ф = opposite side/adjacent side
The hypotenuse is the side facing the right angle while the opposite is the side facing the given angle.
Considering triangle ΔDEF, where ∠F=90°, FE = 21, DF = 20, and ED = 29
As such, with respect to angle E, ED is the hypotenuse, DF is the opposite side and FE is the adjacent side
Cosine ∠E = 21/29
∠E = cos-1 0.724137931
∠E = 43.60° to the nearest hundredth
