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Andrew [12]
3 years ago
8

What is arithmetic sequence

Mathematics
1 answer:
Lemur [1.5K]3 years ago
6 0

Answer:

arithmetic sequence is basically a list of numbers with a specific pattern. when you take any number in the sequence or group ig and subtract it by the preceding one and the sum is the same number it is arithmetic sequence

Step-by-step explanation:

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if a certain number is added to both the numerator and denominator of the fraction 7/9, the result is 5/7. find the number.
KatRina [158]

The answer should be 5/7

4 0
4 years ago
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HELPPPPPOO MEEEEE 2.0
maks197457 [2]

Answer:

I think the answer would be 60

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Step-by-step explanation:

400 × 0.15 = 60

8 0
3 years ago
HELP WITH THIS MATH PROBLEM 93. Points
nadya68 [22]

Answers:

4;  20;  3x² - 4x + 3; 52;  17

Step-by-step explanation:

f(-1):  replace x in f(x) = x² + 3 with -1:  f(-1)  =  (-1)² + 3 = 4

f(-4) + g(-1) = (-4)² + 3 + <em>2(-1) + 3</em>  =  16 + 3 <em>- 2 + 3</em> = 20   <em>(since g(x) = 2X + 3)</em>

<em />

3f(x) - 2g(x) = 3[x² +3] - 2[2x + 3} = 3x² + 9 - 4x - 6  =  3x² - 4x + 3

f(g(2)):  First, evaluate g(2).  It is g(2) = 2(2) + 3 = 7.  Next, use this output, 7, as the input to f(x):    f(g(x)) = (7)² + 3 = 49 + 3 = 52

g(f(2)):  First, evaluate f(x) at x = 2:  f(2) = (2)² + 3 = 7.  Next, use this 7 as the input to g(x):     g(f(2)) = g(7) = 2(7) + 3 = 17

8 0
4 years ago
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Each side of an equilateral triangle measures 30cm. Find the length of an altitude, a , of the triangle?
Archy [21]

Answer:

X=25.98cm

Step-by-step explanation:

From the question we are told that:  

Length of each side l=30cm

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Generally the equation for the Altitude X is mathematically given by

Trigonometric Rule

X=30sin60

X=15\sqrt{3}

X=25.98cm

6 0
3 years ago
What is (4x-3)(7x+6)?
professor190 [17]

Answer:

28x^2+3x-18

Step-by-step explanation:

Formula: (a+b)(a+b) = a^2 + a*b + a*b + b*b

Following this: 28x^2 -21x +24x -18

Then you combine like terms: 28^2 +3x-18

hope this helped!! :)

4 0
3 years ago
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