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Basile [38]
3 years ago
12

(2a2 + ab + 2b) + (4a2 − 3ab + 9)

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
6 0
2a² + ab + 2b + 4a² - 3ab + 9

combine like terms:
2a² + 4a² + ab - 3ab + 2b + 9

6a² - 2ab + 2b + 9
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A recipe calls for 5 deciliters of water and 236 milliliters of milk. How many milliliters of liquid does the recipe call for in
olya-2409 [2.1K]
1 deciliter is one-tenth of a liter and 1 milliliter is one-thousandth of a liter.
So: 1 liter = 10 deciliter = 100 centiliter = 1000 milliliter

This means that 1 deciliter is equal to 100 milliliters.
Based on the above:

5 deciliters = 500 milliliters
500+236 = 736

The recipe calls for 736 milliliters of liquid in total.
3 0
3 years ago
The sum of 15x^2 + 3x - 4 and 5x - 4 is..?
Nutka1998 [239]

Answer: 15x^2 + 8x - 8

Step-by-step explanation:

1) Add them together

(15x^2 + 3x - 4) + (5x - 4)

2) Combine like terms

15x^2 + 8x - 8

3 0
3 years ago
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154.1 ÷ 0.5 as a mixed number
Minchanka [31]
154/5 hope this help

7 0
3 years ago
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A student is constructing a pair of perpendicular lines using a compass and ruler. Here are her first steps:
Katyanochek1 [597]

The next step she should take is to use her ruler to join the given point to the point where the arcs intersect.

<h3>Steps in constructing perpendicular lines</h3>
  1. Place your compass on the given point
  2. Draw an arc across the line on each side of the given point. Do not adjust the compass width when drawing the second arc
  3. From each arc on the line, draw another arc on the opposite side of the line from the given point. The two new arcs will intersect.
  4. Use your ruler to join the given point to the point where the arcs intersect.
  5. Use your compass and ruler to draw a perpendicular line from each given point to the line segment

From this, we can deduce that her next step is to use her ruler to join the given point to the point where the arcs intersect

Thus, the next step she should take is to use her ruler to join the given point to the point where the arcs intersect.

Learn more about construction here:

brainly.com/question/27164219

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4 0
2 years ago
Type the correct answer in the box.
lesantik [10]

Height, h of the cone is 3V/πr²

Step-by-step explanation:

  • Step 1: Find formula for height.

Volume, V = 1/3 πr²h, where r is the radius and h is the height of the cone.

Cross-multiply to find formula for height.

∴ Height, h = 3V/πr²

8 0
3 years ago
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