3 years ago

Solve for x............

Mathematics

1 answer:

Yanka [14]3 years ago

5 0

Step-by-step explanation:

because angle A and C are similar, so

9x-8=28

9x=36

x=4

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Given that angle a = 54° and angle b = 48°, work out x.

Arisa [49]

If it’s a triangle then it has to equal 180
so 48+54+x=180
48+54=102
180-102=x

x=78

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2 years ago

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bulgar [2K]

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no. of cards presently=200

increase in no. of cards=200-60

=140

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2 years ago

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3 years ago

What is the measure of an angle whose sine is√3/2 ? 60 45 30

dem82 [27]

ANSWER

The required angle is
$60 \degree$

EXPLANATION

Let the angle whose sine is
$\frac{ \sqrt{3} }{2}$
be
$x \degree$

Then

$\sin(x \degree) = \frac{ \sqrt{3} }{2}$

We take the inverse sign of both sides to obtain,

$x = \sin ^{ - 1} ( \frac{ \sqrt{3} }{2} )$

We use our scientific calculator to evaluate and obtain,

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3 years ago

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Find the ratio a:b- 1) 2a=9b 2) a+b=3b please explain your work

Alex777 [14]

1) 2a = 9b ⇒ 2:9

2) a + b = 3b ⇒ a = 2b ⇒ 1:2

Answers: 2:9 and 1:2

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3 years ago