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ra1l [238]
3 years ago
14

Classify the expression: −2x2 + 11

Mathematics
1 answer:
lianna [129]3 years ago
8 0

Answer: Quadratic

Step-by-step explanation:

Anything with 0 degree's: Constant

Anything with 1 degree: Linear

Anything with 2 degree's: Quadratic

Anything with 3 degree's: Cubic

Anything with 4 degree's: Quartic

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Can one please help me with this question
Nostrana [21]

Answer:

254.34 cm^2

Step-by-step explanation:

Volume of cylinder = \pi r^{2} h

We know that the diameter is 6, which means that the radius is 3 cm.

Now, it also tell us that that the height is triple the radius, this means that we multiply it by 3. Therefore, the height is 9 cm.

Now we know r = 3 cm and h = 9 cm, pi is assumed to 3.14 as well.

Substituting into the formula we will end up with 254.34 cm^2.

8 0
3 years ago
Read 2 more answers
What is the value of the 3 in parenthases [3]45,423,912
oee [108]

Answer:

300,000,000

Step-by-step explanation:

change everything after the 3 to a zero, hope this is the answer you are looking for

7 0
3 years ago
HELP ASAP. Will give brainliest to correnct answer
matrenka [14]

Answer:

30

Step-by-step explanation:

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6 0
3 years ago
Need help on these math questions. please and thank u
Svetach [21]

9514 1404 393

Answer:

  a) x = -3

  b) y = (28/27)x -27

Step-by-step explanation:

a) College street has a slope of 0, so is a horizontal line. 2nd Ave is perpendicular, so is a vertical line, described by an equation of the form ...

  x = constant

For 2nd Ave to intersect the point (-3, 1), the constant must match that x-coordinate. The equation is ...

  x = -3

__

b) Since Ace Rd is perpendicular to Davidson St, its slope will be the opposite reciprocal of the slope of Davidson St. The slope of Ace Rd is ...

  m = -1/(-27/28) = 28/27

Using the point-slope equation for a line, we can model Ace Rd as ...

  y -y1 = m(x -x1)

  y -1 = (28/27)(x -27)

  y = (28/27)x -27

4 0
3 years ago
Todd placed 32 square tiles along the edge of his wooden dining room table, as shown below. Note: Figure is not drawn to scale.
Flauer [41]

Answer:

The diagonal is 421.

Step-by-step explanation:

This is a difficult question. To find the diagonal, you need to find the base and the height of the square. After that, you need to make it a triangle, by using this equation; A=\frac{1}{2} BH (A being area, B being base, and H being height) then find the length of the hypotenuse of the triangle, which I will do for you.

32*13=416 The B and H = 416. Plug it into the equation now;

A=\frac{1}{2}(416*416)\\\\\\A=\frac{1}{2} 173,056\\\\\\A=86,528Now that you have done that, we know that the area of our new triangle is 86,528.

The diagonal is: 421

8 0
3 years ago
Read 2 more answers
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