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2 years ago

PLS HELP ASAP!!!!!!!!!!!

Mathematics

2 answers:

Neko [114]2 years ago

4 0

Answer: x= 12

Step-by-step explanation:

3x+6 = 42

or, 3x = 36

so, x = 12

jok3333 [9.3K]2 years ago

4 0

Answer:

x = 12

Step-by-step explanation:

3x + 6 = 42 ( subtract 6 from both sides )

3x = 36 ( divide both sides by 3 )

x = 12

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EXPERTS/ACE/GENIUSES

Naddik [55]

1SF = 1 1/2 = 1.5
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6 0

3 years ago

PLEASE HELP WILL MARK AS BRAINLIEST

AveGali [126]

Answer:

$\boxed{\bold{\huge{\boxed{Area\ of\ Trapezium = 150\ cm\²}}}}$

Step-by-step explanation:

Using Pythagorean Theorem first to find EC

$\sf CB^2 = EB^2+EC^2\\Where \ CB = 13 \ and \ EB = 5 \\13^2 = 5^2 + EC^2 \\169 - 25 = EC^2 \\EC^2 = 144\\Taking \ sqrt \ on \ both \ sides\\EC = 12 \ cm$

Given that:

AE = EC

AE = 12 cm

Now,

AB = AE + EB

AB = 12 + 5

AB = 17 cm

ABCD is a trapezoid / trapezium

So,

Area of Trapezium = $\sf \frac{AB+DC}{2} (EC)$

Where AB = 17 , DC = 8 and EC = 12

Area of Trapezium = $\sf \frac{17+8}{2} ( 12)$

Area of Trapezium = (25)(6)

Area of Trapezium = 150 cm²

5 0

3 years ago

2a-5b=10 solve for b

xeze [42]

Solve for b means that you need to separate b in one side and the other terms in the other side

2a-5b=10 subtract 2a from both sides

2a - 5b - 2a = 10 - 2a combine like terms

- 5b = 10 - 2a divide both sides by -5

b = -2 + 2/5 a

I hope that helps!

4 0

3 years ago

He probability that a randomly selected person refused to answer is 0.162. (do not round until the final answer. then round to

4vir4ik [10]

No.

This rate of refusals seems quite low, actually. Some polls are lucky to get a 50% answer rate.

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3 years ago

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Ostrovityanka [42]

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3 years ago