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bija089 [108]
3 years ago
7

Given the triangle below, Which of the following equations correctly represents the relationship between a,b and c

Mathematics
2 answers:
Dennis_Churaev [7]3 years ago
7 0

Answer:

Option D is correct.

Step-by-step explanation:

We are given with a right angled triangle.

Measurement of sides of triangle are a , b , c

and measure of ∠C is 90°

We know that we have a relationship between sides and an angle opposite to a side.

This relation is given by LAW OF COSINES.

In given triangle and using law of cosines, we have

b² = a² + c² - 2ac cos B

a² = b² + c² - 2cb cos A

c² = a² + b² - 2ab cos C  ⇒ c² = a² + b² - 2ab cos(90°)

Therefore, Option D is correct.

nekit [7.7K]3 years ago
3 0
The correct answer I believe is D
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The mixed number will be 13 3/4.

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3 years ago
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Replace f(x) with x⁸

1) f(x) + 2     →       x⁸ + 2

2) 3f(x)        →       3x⁸

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7 0
3 years ago
DO,H = (7, 9) (14, 18) The scale factor is _____. 1/2 2 4 7/9
lana [24]

ANSWER

The scale factor is 2.

EXPLANATION

The point H(7,9) is dilated about the origin and the image is (14,18).

Let the scale factor be k.

Then,

(7,9)\to (7k,9k)

Comparing to the given image, we have:

(7k,9k) = (14,18)

This implies that,

7k = 14

Divide by 2

k = 2

Or

9k = 18

k = 2

4 0
3 years ago
HELPPPPP I NEED THIS
Andru [333]

Answer:

D. 1.3

Step-by-step explanation:

5(1.3) = 6.5

Since the value of r is .2 less than b, b would be 1.5

2(1.5) = 3

6.5+3=9.5

3 0
3 years ago
Let C(x) be the statement "x has a cat", let D(x) be the statement "x has a dog" and let F(x) be the statement "xhas a ferret".
Arturiano [62]

Answer and Step-by-step explanation:

C(x) be the statement "x has a cat"

D(x) be the statement "x has a dog"

F(x) be the statement "x has a ferret".

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a) A student in your class has a cat, a dog and a ferret   = ∃x(C(x) ∧ D(x) ∧ F(x))

b) All students in your class have a cat, a dog, or a ferret  =  ∀x(C(x) ∨ D(x) ∨ F(x))

c) Some students in your class has a cat and a ferret but not a dog  = ∃x (C(x) ∧ F(x) ∧ ¬D(x))

d) No student in this class has a cat, a dog and a ferret  ¬∃x (C(x) ∧ D(x) ∧ F(x))

e) For each of the three animals, cats, dogs and ferrets, there is as student in your class who has one of the three animals.  (∃xC(x)) ∧ (∃xD(x)) ∧ (∃xF(x))

4 0
4 years ago
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