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LuckyWell [14K]
2 years ago
11

Find the linear equation of the statement "The difference of thirty and twelve times a number is equal to y."

Mathematics
1 answer:
Sladkaya [172]2 years ago
6 0

Answer 30-12x=y

Step-by-step explanation:

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Natalie wants to buy 5 feet of ribbon for her scrap book supplies. The store only sells the ribbon in inches. How much ribbon do
belka [17]

Answer:

She would need 60 inches or ribbon.

Step-by-step explanation:

there are 12 inches in a foot, if she needs 5 feet then you would multiply 12 and 5

12*5 = 60

3 0
3 years ago
Read 2 more answers
Evaluate and simplify the expression when c=1 and d=3. 3(2c + d) - 4(c-d) + d2 = [?]​
pav-90 [236]

Answer:

<h2>The answer is 32</h2>

Step-by-step explanation:

3( 2c + d) - 4( c - d) + d²

when

c = 1

d = 3

Substitute the values of c and d into the expression and solve

That's

3[ 2(1) + 3 ] - 4( 1 - 3) + 3²

= 3( 2 + 3) - 4( - 2) + 9

= 3(5) + 8 + 9

= 15 + 17

We have the final answer as

<h3>32</h3>

Hope this helps you

5 0
3 years ago
How many solutions does tan^-1 3 have in interval [0, 2 π)
zhuklara [117]
\bf tan^{-1}(3)\iff tan^{-1}\left( \frac{\pm 3}{\pm 1} \right)=\theta&#10;\\\\\\&#10;thus\qquad tan(\theta)=\cfrac{\pm 3}{\pm 1}\cfrac{\leftarrow opposite=y}{\leftarrow adjacent=x}

now, the angle of θ, can only have a "y" value that is positive on, well, y is positive at 1st and 2nd quadrants

and "x" is positive only in 1st and 4th quadrants

now, that angle θ, can only have those two fellows, "y" and "x" to be positive, only in the 1st quadrant, and also both to be negative on the 3rd quadrant.

and that those two fellows, can also be both negative in the 3rd quadrant
3/1 = 3, and -3/-1 = 3

so, the solutions can only be "3", when both "y" and "x" are the same sign, and that only occurs on the 1st and 3rd quadrants
6 0
2 years ago
The base of a parallelogram is 21 yards. Find the height if the area of the parallelogram is 525 square
11Alexandr11 [23.1K]

Answer:

25 yards

Step-by-step explanation:

A parallelogram is a quadrilateral (a four sided object) with parallel sides

Some of the characteristics of a parallelogram includes :

  1. Opposite sides  and angles are congruent .
  2. Opposite angels are congruent (D = B).
  3. Consecutive angles are supplementary (A + D = 180°).  
  4. The diagonals bisect each other

Area of a parallelogram = base x height

Area = 525

base = 21 yards

height = ?

525 = 21 x height

divide both sides of the equation by 21 to find the value of the height

525 / 21 = height

height = 25 yards

5 0
2 years ago
Find the slope of the line
Reika [66]

Answer:

7/3

Step-by-step explanation:

We can find the slope of a line given two points by

m = (y2-y1)/ (x2-x1)

    = (3--4)/(4-1)

   = (3+4)/(4-1)

7/3

5 0
3 years ago
Read 2 more answers
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