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Ronch [10]
4 years ago
7

Dupa doua reduceri consecutive de pret , ambele de 10% , un aparat foto costa 567 lei. care a fost pretul initial al aparatului

foto.

Mathematics
1 answer:
mestny [16]4 years ago
6 0
Raspunsul e pe foaie

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Which of the following statements is false?
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B. A parallelogram is a rectangle.

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A blank is a group of data points that are close together?
bazaltina [42]

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Clustering

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Data groups that are grouped closely together

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3 years ago
Let (6,-5) be a point on the terminal side of θ. Find the exact values of sin θ, sec θ, and tan θ.
makvit [3.9K]

Answer:

sinθ = -5/√61

secθ = √61/6

tanθ = -5/6

Step-by-step explanation:

From the given coordinate (6, -5), x = 6 and y = -5. This shows that the point lies in the 4th quadrant. In the fourth quadrant, only cos θ is positive, both sin θ and tan θ are negative.

Let us get the value of the radius 'r' first before calculating the trigonometry identities.

Using the Pythagoras theorem;

r^2 = x^2 + y^2\\r^2 = 6^2 + (-5)^2\\r^2 = 36+25\\r^2 = 61\\r = \sqrt{61}

Using SOH, CAH, TOA to get the trigonometry identities;

Given x = 6, y =5 and r = √61

sin \theta = opp/hyp = y/r\\sin \theta = 5/\sqrt{61} \\

Since sin θ, is negative in the fourth quadrant, sin \theta = -5/\sqrt{61} \\

cos \theta = adj/hyp = x/r\\cos \theta = 6/\sqrt{61} \\

sec \theta = \frac{1}{cos \theta} \\sec \theta = \frac{1}{6/\sqrt{61}  } \\sec \theta = \frac{\sqrt{61} }{6}

For tanθ:

tan \theta = \frac{opp}{adj} = \frac{y}{x}  \\tan \theta = \frac{5}{6}\\

Since tan θ, is negative in the fourth quadrant, tan \theta = -5/6

7 0
4 years ago
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Lisa [10]

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y, 4?

Step-by-step explanation:

3 0
3 years ago
What is the value of y?
inn [45]

Answer:

y = 70

Step-by-step explanation:

Angle Formed by Two Chords= 1/2(SUM of Intercepted Arcs)

y = 1/2(92+48)

y = 1/2(140)

y = 70

6 0
3 years ago
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