3 years ago

Look below plzzzzz n thanks

Mathematics

1 answer:

NNADVOKAT [17]3 years ago

5 0

Answer:

Step-by-step explanation:

i actually dont know i just guessed

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Some people advise that in very cold weather you should keep the gas tank in your car more than half full Louis car had 6.9 gall

stealth61 [152]

15-6.9=8.1
8.1 x 3.9= 31.59
$31.59 is your answer
hope this helps :)

4 0

3 years ago

Which shows a function for the sequence 16, 8, 4, 2, …?

navik [9.2K]

Answer:

Step-by-step explanation:

16, 8, 4, 2, …

a = 16

r = 8/16 = ½

f(x) = 16 × (½)^(x - 1)

6 0

3 years ago

it cost 3.99 for 25 fl. oz or detergent or 6.99 for 90 fl. oz of detergent which is a better buy? and can you work it out please

Ierofanga [76]

The 90 fl. oz is a better buy
3.99/25=0.15
6.99/90=0.07

7 0

3 years ago

The first term of an Ap is - 504 while the sum of its 9 terms is-126 find Sum of its 30 terms

frozen [14]

Answer:

The sum of its 30 terms is 38167.5

Step-by-step explanation:

Given:

The First term in the AP is -504

The Sum of its 9 terms is -126

To Find:

The sum of its 30 terms = ?

Solution:

The sum of n terms of an AP:

$S_n = (\frac{n}{2} ) [ 2 a_1 + ( n - 1 ) d ]$

The sum of 9 terms of an AP:

$S_9 = (\frac{9 }{2} ) [ 2(-504) + ( 9 - 1 )d ]$

$S_9 = (4.5 )[ 2 (-504)+ ( 8 ) d ]$

$(4.5 )(2)(-504) + (4.5) 8 d = - 126$

(-4536) +36d = -126

36 d = -126+4536

36 d= 4410

$d= \frac{4410}{36}$

d = 122.5

The sum of its 30 terms is

$S_{30} = ( \frac{30 }{2 }) [ 2 (-504) + ( 30-1)(122.5) ]$

$S_{30} =(15) [ 2 (-504) + ( 29)(122.5) ]$

$S_{30} = [ 2 (-504)(15) + ( 29)(122.5)(15) ]$

$S_{30} = [ -15120 + 53287.5 ]$

$s_{30} = 38.167.5$

6 0

4 years ago

Please Hurry!!! Which expression is equivalent to 2w? w+w 2w+2 2w-w w+2

aksik [14]

Answer:

w+w

Step-by-step explanation:

3 0

3 years ago