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3 years ago

BRAINLIEST! what are the next 2 terms in the geometric sequence? a1=2,r=-3

Mathematics

1 answer:

LenKa [72]3 years ago

8 0

Answer:

The next two terms after a1 is

-6 and then 18

Step-by-step explanation:

Geometric sequence means your pattern for the terms is multiplication by the same number.

So a1 is the first term and r is your common ratio.

The common ratio is what you are multiplying by each time to figure out the next term.

So the geometric sequence goes like this:

a1 , a1*r , (a1*r)*r or a1*r^2 , a1*r^3 ,....

So anyways you have

first term a1=2

second term a2=2(-3)=-6

third term a3=-6(-3)=18

And so on...

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A ladder on a fire truck has its base at point B which is 4 metres above the ground. The ladder is extended and its other end re

Galina-37 [17]

Answer:

53.1°

Step-by-step explanation:

Let x represent the wangle of elevation from B to C

Reference angle = x

Opposite side to x = 16 - 4 = 12

Adjacent = 9

Apply trigonometric ratio to find x.

Thus:

$tan(x) = \frac{12}{9}$

$x = tan^{-1}(frac{12}{9})$

$x= 53.1$ (nearest tenth)

Angle of elevation from B to C = 53.1°

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2 years ago

Are any two line segments always similar or not always similar

kipiarov [429]

Answer:

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8 0

2 years ago

Read 2 more answers

What is a mathematic expresion for 43 more than d

myrzilka [38]

More than means plus or add

43+d is answer

6 0

3 years ago

Joe earns $425 a week for working 40 hours and an additional $20 an hour for each hour over 40. Last week, Joe made $485. Write

Tasya [4]

Answer:

Joe worked 3 hours overtime.

Step-by-step explanation:

Let t = number of hours overworked

425 + 20 × t = 485

425 + 20t = 485

20t = 485 - 425

= 60

$\frac{20t}{20} = \frac{60}{20}$

t = 3

$\therefore$ Joe worked 3 hours over time.

Hope this helps :)

6 0

3 years ago

Two improper fractions have a numerator of 17. The equivalent mixed numbers are 3?/? and 1?/?. What could the mixed numbers be?

Llana [10]

The times plus method.... is where a mixed number.... for example, to get the improper fraction of 3 1/4, you multiply 4 and three, and add that number with 1. (try writing it on a piece of paper, times between the whole number and denominator, and a plus between the whole number and the numerator.) anyway we are going to use the reverse for this.

SO the numerator is 17, and 17 is divisible by 5..... 3 times (u get where I'm going??) and there's 2 left over so...... the answer for that one should be 3 2/5
Since 3 x 5= 15+2 is 17 ;)))

Moving ON for the one....pick like 15 or 16 to be the denominator.... and subtract the 15 or 16 from 17, and the number you get is your numerator...

7 0

2 years ago