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Elena-2011 [213]
3 years ago
5

What is 15+3(2x-4)-4x can you help please

Mathematics
1 answer:
mamaluj [8]3 years ago
5 0

Answer:

2x+3

Step-by-step explanation:

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A<br> Write an explicit formula for an, the nth term of<br> the sequence 17, 15, 13, ...
yawa3891 [41]

Tn=-2n+19

Step-by-step explanation:

Well in south africa we use Tn

Tn=a+(n-1)d

a=is the first term in the sequence which is 17

d=is the the difference between the terms which is - 2

Tn=17+(n-1)(-2)

Tn=17-2n+2

Tn=-2n+19

3 0
3 years ago
What is the solution to inequality of[9n-9]+10=7​
Brilliant_brown [7]

Answer:

n = 2/3

Step-by-step explanation:

[9n-9]+10=7​

Subtract 10 from each side

9n -9+10-10 =7-10

9n -9 = -3

Add 9 to each side

9n -9+9 = -3+9

9n = 6

Divide by 9

9n/9 = 6/9

n = 2/3

4 0
3 years ago
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Given the function<br> Calculate the following values:<br> f( - 1) =<br> f(0)<br> f(2)=
Alecsey [184]

-1 is less than 0, so you use the first equation:

3(-1) +2 = -3+2 = -1

f(-1) = -1

For 0 use the 2nd equation:

3(0) + 4 = 0+4 = 4

f(0) = 4

For 2 use the 2nd equation:

3(2) + 4 = 6+4 = 10

f(2) = 10

6 0
3 years ago
When adding and subtracting numbers in Scientific Notation, the powers of the base 10 must be the same exponent so that you have
Butoxors [25]

Answer:

The answer is true!

Step-by-step explanation

8 0
1 year ago
Find the value of X. Round to the<br> nearest tenth. <br> 7.4in <br> 2.4in<br> x
Darya [45]

Answer:

4.4 inches

Step-by-step explanation:

Here, we are interested in calculating the value of x.

Mathematically, a line that comes from the center of the circle and extends to a chord, divides the chord into two equal parts.

This means what we have is a right angled triangle with the radius being the hypotenuse, the half of the length of the chord as the other side of the triangle.

3.7 is half the length of the chord i.e 7.4/2

Thus;

using Pythagoras’ theorem

x^2 = 2.4^2 + 3.7^2

Pythagoras’ posited that the square of the hypotenuse is equal to the sum of the squares of the other two sides of the triangle.

Thus;

x^2 =5.76 + 13.69

x^2 = 19.45

x = √(19.45)

x = 4.41 inches which is 4.4 inches to the nearest tenth

6 0
2 years ago
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