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Allushta [10]
3 years ago
12

PLEASE HELP! No phony answers, thanks! Happy holidays, Merry Christmas!!

Mathematics
1 answer:
larisa [96]3 years ago
3 0

Step-by-step explanation:

(f+g)(x) means we just add the 2 functions, so we have

(x-3) + 2x² = 2x² + x - 3

(f-g)(x) means we subtract g(x) from f(x), so we have

(x-3) - (2x²) = -2x²+x-3

Assuming that the dot signifies a multiplication sign and not a composition  sign, we have

(f*g)(x) = f(x) * g(x)

= (x-3) * 2x²

= 2x³ - 6x²

Plugging -2 in, we get

2(-2)³-6(-2)² = -16 -24 = -40

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a triangle has side lengths of (2.9n-7.8p)(2.9n−7.8p) centimeters, (6.6n-6.4q)(6.6n−6.4q) centimeters, and (2.9q-3.8p)(2.9q−3.8p
krok68 [10]

The perimeter of the triangle is: (9.5n - 11.6p - 3.5q) cm.

<h3>What is the Perimeter of a Triangle?</h3>

The total length of all the sides of a triangle is equal to the perimeter of the triangle.

Given a triangle has the following lengths:

  • (2.9n-7.8p) centimeters,
  • (6.6n-6.4q) centimeters,
  • (2.9q-3.8p) centimeters.

The perimeter of the triangle = (2.9n-7.8p) + (6.6n-6.4q) + (2.9q-3.8p)

The perimeter of the triangle = 2.9n - 7.8p + 6.6n - 6.4q + 2.9q - 3.8p

Combine like terms together

The perimeter of the triangle = 2.9n + 6.6n - 7.8p - 3.8p - 6.4q + 2.9q

The perimeter of the triangle = 9.5n - 11.6p - 3.5q

Thus, the perimeter of the triangle is: (9.5n - 11.6p - 3.5q) cm.

Learn more about the perimeter of the triangle on:

brainly.com/question/24382052

#SPJ1

4 0
2 years ago
Please help i’m confused
Sonja [21]

Answer:

This is the graph of a <u>parabolic</u> function.

  • Without seeing the dropdown menu, I assume that is what the question is asking. It's parabolic: the shape is like an upside-down u or an upside-down v.

Michael Jordan's hang time is <u>.9</u> seconds.

  • The parabola starts at 0 seconds, and ends at t = .9 seconds.

The maximum height is about <u>1</u> meter.

  • The vertex or very top of the parabola is at h = 1.

For t between t = .5 and t = 1, the height is <u>decreasing/falling/going down.</u>

  • I can't tell this one for sure unless I can see the dropdowns. But I can say that from .5 to 1, whatever it is, it's dropping or falling, because the height is getting less and less.
6 0
3 years ago
What is the answer to 7/5 = 10.5/b
Pavlova-9 [17]

Answer: b=14.7

Step-by-step explanation:

6 0
4 years ago
I know only one answer whats the other one help me image-
miv72 [106K]

Answer:

A. 4(4a + 18)

B. 8(2a + 9)

Step-by-step explanation:

<u><em>We know that</em></u> :

16a = 4×4×a

72 = 4×18

Then

16a + 72 = 4×(4a) + 4×(18)

              = 4 × (4a + 18)

On the other hand,

16a = 8×2×a

72 = 8×9

Then

16a + 72 = 8×(2a) + 8×(9)

              = 8 × (2a + 9)

7 0
2 years ago
A circle with radius 3 with a central angle of 17/9pi radians. What is the area of the sector?
inn [45]
It can maybe be um 3 times 17 55 um maybe 88
8 0
3 years ago
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