2 years ago

2. If the 2nd term of a G.P series is 3/2 and the 4th term is 3/8 , find:

Mathematics

1 answer:

madam [21]2 years ago

5 0

I think the sum of the first fifteen terms of the G.P

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Help me

dybincka [34]

Answer:

First you have to multiply negative four in parentheses, then add minus two

-4×(-8+3x)=32-12x

2+32-12x=34-12x

34-12x=82

-12x=48

x=-4

6 0

1 year ago

The options for the first blank are 45, 240, 270, and 315

Schach [20]

Answer:

The solutions are 270° and 450°.

Step-by-step explanation:

Given:

$cos\frac{x}{2} =\frac{\sqrt{2} }{2}$ .

So, the second and third quadrant angle to be calculated.

$cos\frac{x}{2}=135$

$=x=270$ °.

And, $cos\frac{x}{2}=225$

$=x=450$ °

Therefore, the solutions are 270° and 450°.

5 0

2 years ago

Simplify the following expression! Please

Alex Ar [27]

2(-20)+3[5/4(-20)]

-40 + 3[-25]
-40 + -75
-115

-115 is your final answer.

6 0

2 years ago

Read 2 more answers

In 14.987 what place value is the 7 in

Gemiola [76]

The 9 is in the tenths place
The 8 is in the hundredths place

The 7 is in the thousandths place.

7 0

2 years ago

-2 1/3+(1 3/4 I need help for a test so if you guys can help me I'll be happy :D

kotegsom [21]

The answer is -7/12! Please mark me brainest! :)

6 0

1 year ago