2 years ago

What is the area of the triangle?

Mathematics

1 answer:

disa [49]2 years ago

5 0

Hello I am sorry to say this but no one can help you because you didn't put a picture of the triangle on.

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Please answer the question

lara [203]

This is the answer to the question

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2 years ago

What's the explicit rule for the sequence 3, -6, 12, -24, 48, ...?

777dan777 [17]

Answer:

$\sf \dfrac{-3}{2}(-2)^n$

Step-by-step explanation:

Explicit formulas are used to represent all the terms of the geometric sequence with a single formula.

$\sf \boxed{\bf t_n = ar^{n-1}}$

a is the first term.

r is the common ratio.

r = second term ÷ first term.

3 , - 6 , 12, - 24, 48 ,........

a = 3

r = -6 ÷ 3 = -2

$\sf t_n = 3*(-2)^{(n-1)}\\\\$

$\sf = 3*(-2)^{n}*(-2)^{-1}\\\\ =3*(-2)^n*\dfrac{-1}{2}\\\\= \dfrac{-3}{2}(-2)^n$

Check:

$\sf t_1 =\dfrac{-3}{2}*(-2)^1=\dfrac{-3}{2}*(-2) = 3\\\\\\t-2 = \dfrac{-3}{2}*(-2)^2 = \dfrac{-3}{2}*4=-6\\\\\\t_3=\dfrac{-3}{2}*(-2)^3=\dfrac{-3}{2}*(-8)=12$

4 0

1 year ago

Read 2 more answers

Adrian is going on holiday.

Delicious77 [7]

Answer : 11kg
9 divided by 45 = 0.2 then 0.2 x 55 (which is the other part of the percentage) is 11

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2 years ago

A boy moves 4 miles south. Then he turns 90 degrees to the left. He moves forward 6 miles. H turns 90 degrees to the left. He mo

zaharov [31]

Y1=-4

x1=6

y2=4

y1+y2=0

So he is just his x displacement from where he started, 6 miles.

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2 years ago

What is the slope of a line that passes through (–8,–16) and (18,5)?

kap26 [50]

slope=(-16-5)/(-8-18)=21/26

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3 years ago