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kari74 [83]
2 years ago
15

Simplify the expression.1. 4(x + 3) =​

Mathematics
2 answers:
Lady bird [3.3K]2 years ago
7 0
It is 1.4x+4.2 you do not need to simplify
fgiga [73]2 years ago
4 0
Your answer is 4x+12
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How do i prove 2sec^2x-2sec^2xsin^2-sin^2x-cos^2x=1
kramer
2\sec^2x-2\sec^2x\sin^2x-\sin^2x-\cos^2x=2\sec^2x(1-\sin^2x)-(\sin^2x+\cos^2x)

Since \sin^2x+\cos^2x=1, you have

2\sec^2x(1-\sin^2x)-(\sin^2x+\cos^2x)=2\sec^2x\cos^2x-1

and since \sec x=\dfrac1{\cos x}, you end up with 2-1=1.
6 0
3 years ago
M−2 over 4 =5 over 20
Ne4ueva [31]
m=3
Plug it in and it should work
3-2 =1 over 4 which is the same as 5 over 20 because both as a percentage equal 25% or 1/4 or 0.25 if you put it in a calculator as calculators provide decimal answers
5 0
2 years ago
Which table does not represent a linear function?
maks197457 [2]

Answer:

D . . . (it represents a quadratic function)

Step-by-step explanation:

The x-values are 1 unit apart for all values in all tables, making the problem much simpler. All you need to do is find the table where the y-value differences are not the same from one line to the next.

In table A, y-values decrease by 3.

In table B, y-values increase by 5.

In table C, y-values increase by 1.

In table D, y-values increase by 3, 2, 1—numbers that are not constant. (These differences decrease by 1, a number that *is* constant. Since the 2nd differences are constant, the table represents a 2nd degree function.)

3 0
3 years ago
Read 2 more answers
If the points A(2,a) and B(5,8) determine a line with a slope 2/3, find the value of a.
icang [17]

Answer:

(2,1) and "a" will be 1.

Step-by-step explanation: When you plot point B in a grid, use the slope to go up and down then find a place when x is 2. Then find the y and then you;ll have the answer.


7 0
3 years ago
-24.5 = ? <br>-100<br>-120<br>120<br>90​
sweet-ann [11.9K]
-120

Explanation : When you multiply a negative with a positive number it equals a negative number . That’s why it is a -120 instead of a positive 120 .

-24
*5
____
-120


6 0
2 years ago
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