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Anon25 [30]
3 years ago
14

Evaluate the expression 5(9-4)^2-3^2

Mathematics
1 answer:
Kay [80]3 years ago
3 0
<span>5(9-4)^2-3^2
5(5)^2-3^2
5(25)-9
125-9
116</span>
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Select the reason why these triangles are
Elden [556K]

Answer:

B. SAS

Step-by-step explanation:

In the given diagram, it would be observed that each side of the bigger triangle are multiplied by a factor of \frac{1}{3} to give the values of each corresponding sides of the smaller triangle. But the included angle of the two triangles are the same.

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First of all, you need to be aware of the following trigonometrical ratios\functions:

For angle A:

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3 years ago
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4 0
3 years ago
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Solving special systems<br> {y=1/2x+4<br> {-1/2x+y=-5
ryzh [129]

Answer:

no solution

Step-by-step explanation:

Given the 2 equations

y = \frac{1}{2} x + 4 → (1)

- \frac{1}{2} x + y = - 5 → (2)

Substitute y = \frac{1}{2} x + 4 into (2)

- \frac{1}{2} x + \frac{1}{2} x + 4 = - 5 , that is

4 = - 5 ← not possible

This indicates the system has no solution

7 0
3 years ago
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