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NARA [144]
2 years ago
12

3(x + y) + 2x2 + (1 + y)?

Mathematics
2 answers:
stiks02 [169]2 years ago
6 0

Answer:

7x+4y+1

Don’t low if you wanted it simplified

irina [24]2 years ago
4 0

Answer:

3x + 4y + 5

Step-by-step explanation:

3(x + y) + 2 • 2 + (1 + y)

3x + 3y + 2 • 2 + (1 + y)

3x + 4y + 4 + 1

3x + 4y + 5

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A rectangle has an area of 126 m2 and a width of 7 m. What is its length?
Lorico [155]
126 divided by 7 equals 18



18 m
8 0
3 years ago
Read 2 more answers
1/2 n + 3 = 6 please the answer thank u
spin [16.1K]

Answer:

Step-by-step explanation:

1/2 n + 3 = 6

-3 -3

1/2 = 3

Answer is 1.5=n

6 0
3 years ago
Read 2 more answers
A child is flying a kite 145ft above the ground. The string makes an angle of 57 degrees from the child's hands. How much has be
Arturiano [62]

Answer: the length of string that been let out to fly the kite this high is 172.89 ft

Step-by-step explanation:

The length of string attached to the kite, the vertical height of the kite above the ground and the ground distance forms a right angle triangle.

With an angle of 57 degrees, the length of the string that is attached to the kite represents the hypotenuse of the right angle triangle.

The height of the kite above the ground represents the opposite side of the triangle

To determine h, the length of the string that has been let out to fly the kite this high, we would apply the

Sine trigonometric ratio which is expressed as

Sine θ = opposite side/hypotenuse

Sin 57 = 145/h

h = 145/Sin57 = 145/0.8387

h = 172.89

7 0
3 years ago
If the side length of a square pyramid is triple and the slant height is divided by 5 what would be the formula to find the modi
valentina_108 [34]
If the original side length is "s" and the original slant height is "h", the original surface area is
.. S = (base area) +(lateral area)
.. S = s² +(1/2)*(4s)*h
.. S = s(s +2h)

Now, if we make these replacements: s ⇒ 3s, h ⇒ h/5, we have
.. S' = (3s)(3s +2h/5)
.. S' = 9s² +(6/5)s*h . . . . . . . the formula for the modified area (in terms of original dimensions)

_____
Of course, in terms of the modified dimensions, the formula is the same:
.. S' = s'(s' +2h')
5 0
3 years ago
The answers are:<br> 1.73 miles<br> 2.65 miles<br> 3.16 miles<br> 4.58 miles<br> Thanks!
kkurt [141]

Answer:

  4.58 miles

Step-by-step explanation:

The Pythagorean theorem is used to answer such questions. It tells you the relation between the side lengths is ...

  AC² = AB² +BC²

In miles, ...

  5² = AB² + 2² . . . . . . . fill in the given numbers

  25 -4 = AB² . . . . . . . . subtract 2²

  √21 = AB ≈ 4.58 . . . . . take the square root

The distance in miles from A to B is about 4.58.

7 0
3 years ago
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