<span><span /><span>In this problem, it is stated that Darcy uses
block in order to show the value of the number.
Place value blocks are commonly used to help or support the students to
investigate the place value of the given number. It would be easy for Darcy to
use a material to know the number she’s looking for.
It says here that she used 4 thousand blocks and 500 hundred blocks.
Thus, the number she’s looking for is:
=> 4thousand + 5hundred
=>4000 + 500
=> 4500</span></span>
They are NOT similar because similar triangles have congruent angles, but are different sizes. These angles are not congruent.
Answer: this is what i know
A corner store sells two kinds of baked goods: cakes and pies. A cake costs $5 and a pie costs $7. In one day, the store sold 15 baked goods for a total of $91.
Applying the trig formula: sin a = cos (90 - a)
cos (2x + 8) = sin (x + 37) = cos (90 - x - 37) = cos (53 - x)
Property of the cosine function -->
(
2
x
+
8
)
=
±
(
53
−
x
)
a. 2x + 8 = 53 - x
3x = 45
x
=
15
∘
b. 2x + 8 = - 53 + x
x
=
−
61
∘
For general answers, add
k
360
∘
Check by calculator.
x = 15 --> sin (x + 37) = sin 52 = 0.788
cos (2x + 8) = cos (38) = 0.788. Proved
x = - 61 --> sin (x + 37) = sin (- 24) = - sin 24 = - 0.407
cos (2x + 8) = cos (-122 + 8) = cos (- 114) = - 0.407. Proved
Answer:
Latter C.
Step-by-step explanation:
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