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zimovet [89]
2 years ago
7

Subtract -2x² from the sum of 4x² and 15x².​

Mathematics
2 answers:
tatuchka [14]2 years ago
8 0

Answer:

21x^{2}

Step-by-step explanation:

4x^{2} +15x^{2} --2x^{2}

4x^{2} +15x^{2} +2x^{2}...........2 negatives signs next to each make a positive

21x^{2}.................................combine like terms

harkovskaia [24]2 years ago
6 0

Answer:

Step-by-step explanation:

(4x²+15x²)-(-2x²)=19x²+2x²=21x²

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The perimeter of a rectangular ink pad is 36 centimeters. The ink pad is 12 centimeters wide. How tall is it?
Nikitich [7]

Answer:

6 cm

Step-by-step explanation:

36-24=12 and 12/2 is 6

Hope this helps!!!!!!!!!!!!!!

3 0
2 years ago
If f(x) = 4x2 - 5x + 7 and g(x) = 3x2 - 2x + 8, find f(x) + g(x). A) 7x2 - 7x + 15 B) 7x4 - 7x2 + 15 C) 7x2 + 15 D) 12x4 - 8x3 +
lutik1710 [3]

Answer:

A) 7x^2-7x+15

Step-by-step explanation:

f(x) = 4x2 - 5x + 7,

g(x) = 3x2 - 2x + 8

f(x) +g(x) =

4x^2 - 5x + 7 + 3x^2 - 2x + 8=

7x^2-7x+15

8 0
3 years ago
<img src="https://tex.z-dn.net/?f=g%28x%29%20%3D%203x%20-%206" id="TexFormula1" title="g(x) = 3x - 6" alt="g(x) = 3x - 6" align=
VARVARA [1.3K]

Hey there! :)

Answer:

g^{-1} (g(10))=10

Step-by-step explanation:

Begin by calculating g(10):

g(x) = 3x - 6

Substitute in 10 for x:

g(10) = 3(10) - 6

g(10) = 30-6

g(10) = 24.

Plug '24' into 'x' into g^{-1} (x)

g^{-1} (24)=\frac{(24) + 6}{3}

Simplify:

g^{-1} (24)=\frac{30}{3}

g^{-1} (24)=10

3 0
3 years ago
A circle with radius 6 has a sector with a central angle of 48 what is the area of the sector
inn [45]

Answer:

≈ 15.08 units²

Step-by-step explanation:

The area (A) of the sector is calculated as

A = area of circle × fraction of circle

   = πr² × \frac{48}{360} ( r is the radius )

   = π × 6² × \frac{48}{360}

   = 36π ×\frac{48}{360} = π × \frac{48}{10} = \frac{48\pi }{10} ≈ 15.08

5 0
3 years ago
Read 2 more answers
Please help with this
Degger [83]
All of them are wrong its 91 but if you want click or circle 90
3 0
3 years ago
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