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Genrish500 [490]
2 years ago
13

Question 9 (1 point)

Mathematics
2 answers:
sveta [45]2 years ago
4 0
The answer is D it 420
kari74 [83]2 years ago
4 0

Answer:

D, 420 dollers

Step-by-step explanation:

2800 × 15% = 420

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2(x + 3)2 = 49
A 1.95 and 7.95
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3. Knowing lengths you could state that \dfrac{b}{c}= \dfrac{e}{b}.


4. This ratio is equivalent to b^2=ce.


5. m\angle ABC=m\angle CBD,\ m\angle ACB=m\angle CDB=90^{\circ}, then m\angle BAC=m\angle BCD and triangles BDC and BCA are similar by AAA theorem.


6. The ratio of the corresponding sides of similar triangles is constant, so


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b^2+a^2=ce+cd.


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b^2+a^2=c(e+d).


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