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sergij07 [2.7K]
3 years ago
13

(a(1) = -2 (a(n) = a(n − 1) – 5 Find the 4th term in the sequence.

Mathematics
1 answer:
docker41 [41]3 years ago
5 0

Answer:

a(4) = -17

Step-by-step explanation:

hello :

use :  a(n) =a(n-1)  -5

a(n) -a(n-1) = -5  (common differnce for  arithmetic sequence)

the ni-eme term is : a(n) = a(1) +(n-1)d       d = -5 and a(1) = -2

so : a(n) = -2 +(n-1)(-5)

a(n) = -5n+3

when : n= 4   a(4) = -5(4)+3 =-17

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A park bench is located 16 3/4 feet due north of an elm tree a fountain is located 9 1/2 feet due south of the same elm tree
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Answer:

A) 26 1/4

Step-by-step explanation:

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What is the area of this quadrilateral need help ASAP
vova2212 [387]

Answer:

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Step-by-step explanation:

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4 0
4 years ago
$750,000 is what percent of $3,000,000?<br> Please help
velikii [3]

Answer:

25

Step-by-step explanation:

Solution for 750000 is what percent of 3000000:

750000:3000000*100 =

(750000*100):3000000 =

75000000:3000000 = 25

Now we have: 750000 is what percent of 3000000 = 25

Question: 750000 is what percent of 3000000?

Percentage solution with steps:

Step 1: We make the assumption that 3000000 is 100% since it is our output value.

Step 2: We next represent the value we seek with $x$x​.

Step 3: From step 1, it follows that $100\%=3000000$100%=3000000​.

Step 4: In the same vein, $x\%=750000$x%=750000​.

Step 5: This gives us a pair of simple equations:

$100\%=3000000(1)$100%=3000000(1)​.

$x\%=750000(2)$x%=750000(2)​.

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS

(left hand side) of both equations have the same unit (%); we have

$\frac{100\%}{x\%}=\frac{3000000}{750000}$

100%

x%​=

3000000

750000​​

Step 7: Taking the inverse (or reciprocal) of both sides yields

$\frac{x\%}{100\%}=\frac{750000}{3000000}$

x%

100%​=

750000

3000000​​

$\Rightarrow x=25\%$⇒x=25%​

3 0
3 years ago
What is 6 3/4+1 5/8=
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Answer:

Step-by-step explanation:

6\frac{3}{4}+1\frac{5}{8}=6+1+\frac{3}{4}+\frac{5}{8}\\\\=7+\frac{3*2}{4*2}+\frac{5}{8}\\\\=7+\frac{6}{8}+\frac{5}{8}=7+\frac{6+5}{8}\\=7+\frac{11}{8}=7+1\frac{3}{8}=7+1+\frac{3}{8}\\\\=8\frac{3}{8}

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