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Shtirlitz [24]
3 years ago
5

Describe the relationship between n and 4 that will make the value of the expression 7x n/4 greater than 7

Mathematics
1 answer:
lord [1]3 years ago
7 0
I wish i had my book with me because i did that page already so sorry

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How you write the number 690001008 standard form
Naddik [55]

Answer:

6.90001008 x 10^8

Step-by-step explanation:

The answer is above

3 0
3 years ago
determine the base, b, of the exponential model. Is the base a growth or decay factor? a. b is 0.6394; It is a growth factor. b.
Kazeer [188]
An exponential model can be described by the function
f(x) = a(b)^x
where: a is the initial population or the starting number, b is the base and x is the number of periods elapsed.

When the base of an exponential model is greater than 1 it is called a growth factor, but when it is less than 1 it is called a decay factor.

Given the exponential model
n=20.5(0.6394)^t
n is the final output of the exponential model, 20.5 is the starting number, 0.6394 is the base and t is the number of periods/time elapsed.

Here, the base is 0.6394 which is less than 1, hence a decay factor.

Therefore, <span>the base, b, of the exponential model is 0.6394; It is a decay factor.</span>
8 0
3 years ago
What is the value of x? <br> 64 68<br> (8x -12)<br> (2x + 18)
tamaranim1 [39]
(8x - 12) + 64 + 68 = 180
(A straight line equals to 180)
8x - 12 + 132 = 180
Combine liked terms
8x + 120 = 180
-120 on both sides
8x = 40
/8 on both sides
x = 5

(8x - 12)
8(5) - 12
40 - 12
28

(2x + 18)
2(5) + 18
10 + 18
28

Answer:
x = 5
4 0
3 years ago
Can someone understand this i know its substitution for sure if i dont get wrong
svlad2 [7]

4x - y = 3

y = 2x + 13


Substitute the second equation into the first equation:

4x - y = 3  [since y = 2x + 13, you can substitute (2x + 13) for "y" in the equation]

4x - (2x + 13) = 3    Distribute/multiply - into (2x + 13)

4x - 2x - 13 = 3  

2x - 13 = 3       Add 13 on both sides

2x = 16     Divide 2 on both sides

x = 8


Now that you know x = 8, plug it into one of the equations to find y

y = 2x + 13

y = 2(8) + 13

y = 16 + 13

y = 29


x = 8, y = 29  or  (8, 29)


[proof]

4x - y = 3

4(8) - 29 = 3

32 - 29 = 3

3 = 3


y = 2x + 13

29 = 2(8) + 13

29 = 16 + 13

29 = 29


7 0
3 years ago
Can someone please help me solve the system of equations using elimination
ANEK [815]

Answer:

21x = 14

x = 1.5

Step-by-step explanation:

(-4)3y - 9x = -6

(3)4y - 12x = -8

-12y-9x=-6

12y-12x=-8

0 -21x = -14

-21x/- = -14/-

21x = 14

8 0
3 years ago
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