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s2008m [1.1K]
3 years ago
11

The sum of twice a number and 4 is equal to the sum of the number and 7

Mathematics
2 answers:
Naily [24]3 years ago
7 0

Answer:

2n+4=n+7

Step-by-step explanation:

n=-3

icang [17]3 years ago
7 0
The answer would be 3.

2x + 4 = x + 7

Move the terms around so you could simplify like terms.

X = 3

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two angles are complementary. the larger angle is 6 more than five times the number. how large is the smaller angle?
spin [16.1K]

Answer:

14 degrees

Step-by-step explanation:

Complementary angles means they add up to 90 degrees.

If the smaller angle times 5 plus 6 equals the bigger angle, then:

14 x 5 = 70

70 + 6 = 76

76 + 14 = 90

6 0
2 years ago
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A right triangle has an area of 36 square units. If you draw scaled copies of this traingle. What will the areas of these scaled
krok68 [10]

1 to 5 you most likely have to add 36 x the number but the fractions I don't know

5 0
3 years ago
{ (3,7), (-3,5), (0,4), (-1,5), (6,-2)}
Ede4ka [16]

Answer:

domain -3<x<6

range -2<y<7

it is a function

4 0
3 years ago
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In June, a runner ran a mile in 7:45. In September, the runner ran a mile in 5:51.
kolbaska11 [484]
1.4 because you divide 7.45 by 5.51 and you get 1.35 which would be rounded to 1.4


3 0
3 years ago
Which of the following shows the general formula for factoring the difference of cubes?
Tcecarenko [31]

Answer:

(a - b)(a² + ab + b²)

Step-by-step explanation:

The difference of cubes is expressed as:

a³-b³

Using trial and error:

a³-b³

Check  (a - b)(a² + ab + b²)

Expand

(a - b)(a² + ab + b²)

= a(a²)+a(ab)+a(b²)-a²b-ab²-b³

= a³+a²b+a(b²)-a²b-ab²-b³

Collect the like terms

= a³+a²b-a²b+ab²-ab²-b³

= a³-b³

Hence the required option is

7 0
3 years ago
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