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mario62 [17]
2 years ago
14

3. Which value of x makes the equation 3.5(2x - 4) = 21 true

Mathematics
1 answer:
Grace [21]2 years ago
7 0

Answer:

5

Step-by-step explanation:

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Dawson is covering a large cylinder with brown paper. He'll need to find the volume of the cylinder in order to determine how mu
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False.

The volume of a cylinder is how much space it takes up INSIDE. You would use volume to measure how much you can put something inside (like water)

Surface area measures the OUTSIDE of a shape. In this case, you'd use surface area to determine how much paper he needs.

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2 years ago
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Equivalent decimal are decimal that have the same value. <br><br>True<br>Or<br>False
tekilochka [14]
True because decimals do have the same number when they are equivalent
5 0
3 years ago
This box can be packed with 48 unit cubes
AURORKA [14]

Answer:

Please clarify the question so I can answer :)

Step-by-step explanation:

8 0
3 years ago
The 4th term of an arithmetic sequence is 12 and the 8th term is 36. Find the 17th term of the sequence.
Blizzard [7]

Answer: 90

Step-by-step explanation:

The formula for calculating the nth term of a sequence is given as :

t_{n} = a + ( n - d )

Where a is the first term

d is the common difference and

n is the number of terms

This means that the 4th term of an arithmetic sequence will have the formula :

t_{4} = a + 3d

And the 4th term has been given to be , 12 ,substituting into the formula we have

12 = a + 3d .............................. equation 1

Also substituting for the 8th term , we have

36 = a + 7d .............................. equation 2

Combining the two equations , we have

a + 3d = 12  ................... equation 1

a + 7d = 36 ------------ equation 2

Solving the system of linear equation by substitution method , make a the subject of formula from equation 1 , that is

a = 12 - 3d ................... equation 3

substitute a = 12 - 3d into equation  2 , equation 2 then becomes

12 - 3d + 7d = 36

12 + 4d = 36

subtract 12 from both sides

4d = 36 - 12

4d = 24

divide through by 4

d = 6

substitute d = 6 into equation 3 to find the value of a, we have

a = 12 - 3d

a = 12 - 3 ( 6)

a = 12 - 18

a = -6

Therefore , the 17th term of the sequence will be :

t_{17} = a + 16d

t_{17} = -6 + 16 (6)

t_{17} = -6 + 96

t_{17} = 90

Therefore : the 17th term of the sequence is 90

6 0
3 years ago
What expression is equivalent to (4y^2-3) (4y+3)
Naya [18.7K]

Answer:

Step-by-step explanation:

Just use the distributive property.

(4y^2-3)(4y+3)

= 4y^2(4y+3) - 3(4y+3)

= 16y^3 + 12y^2 - 12y - 9

4 0
3 years ago
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