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3 years ago

Factor this? Subtract the following polynomials. (3x^2 - 5x + 12) - (5x^2 + x -11)

Mathematics

1 answer:

Papessa [141]3 years ago

5 0

The answer is -2x^2-6x+23. all you have to do is just combine like terms

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Quintana has 72 stickers she put 9 stickers on each page .then she add 12 more stickers at the end.how many stickers does she ha

Yanka [14]

72 + 12 = 84 stickers
ignore “she put 9 stickers on each page” because the question asked how many stickers she had total not how many on each page

3 0

3 years ago

Find x and y. Please help, I will give brainiest answer.

Inessa05 [86]

Answer:

x = 3 and y = 2

x = 1.25 and y = 1.75

Step-by-step explanation:

Part 1:

See the diagram first.

If the two arrow lines are parallel then, the two triangles are similar.

So, the corresponding sides of the triangles are proportional.

So, $\frac{3}{1.5} = \frac{6}{x} = \frac{4}{y}$

Hence, x = 3 and y = 2 (Answer)

Part 2:

See the diagram first.

If the two arrow lines are parallel then, the two triangles are similar.

So, the corresponding sides of the triangles are proportional.

So, $\frac{10}{8} = \frac{x + 5}{5} = \frac{y + 7}{7}$

⇒ $x + 5 = \frac{50}{8} =6.25$

⇒ x = 1.25

Again, $y + 7 = \frac{70}{8} =8.75$

⇒ y = 1.75

Hence, x = 1.25 and y = 1.75 (Answer)

7 0

3 years ago

What the polynomial in standard form of (X-3)(X-4)=

Anna007 [38]

Answer:X^2-7x-12

Step-by-step explanation:

That’s how it is

4 0

3 years ago

Read 2 more answers

Some birds were flying and met a bird on their way. The bird greeted them; hello hundred! They said we are not hundred, we need

Alex_Xolod [135]

Answer:

I'm not certain but it sounds as though there would be 150 birds flying .

Step-by-step explanation:

The first bird says we are not hundred, they need half their group population plus the second birds group population. So if we are trying to get 100 from two groups the easiest numbers would be to add 50 and 50. So if we have the second groups whole population be 50 birds then the first group's whole population must be 100. The first bird said half of us so that means half of 100 which would be 50. If you add half of the first groups population, which is 50(100/2=50), plus the second groups whole population (50), you get 100 birds. Which means if you add the first groups total population(100) with the second groups total population(50) you get 150 total birds flying.

4 0

3 years ago

The graph of the equation 2x=y^2 from A(0,0) to B(2,2) is rotated around the x axis. The surface area of the resulting solid is?

Stolb23 [73]

Write the given equation as
x = (1/2)y² or as y = √(2x)

Graph the given curve within the region (0,0) and (2,2) as shown in the figure below.
When the curve is rotated about the x-axis, an element of surface area is
dA = 2πy dx

The surface area of the resulting solid is
$A= 2\pi \int_{0}^{2} \sqrt{2x} dx = \frac{4 \sqrt{2} \pi}{3} [x^{3/2}]_{0}^{2} = \frac{16 \pi}{3}$

If the right end is considered, the extra area is π*(2²) = 4π

Answer:
The surface area of the rotated solid is (16π)/3.
If the right end is considered, it is an extra area of 4π.

7 0

3 years ago