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dolphi86 [110]
2 years ago
9

Fill in the blank with the correct number to balance the equation: 4Cr + 3O2 → Cr2O3

Mathematics
1 answer:
ivanzaharov [21]2 years ago
4 0

Answer:

2

Step-by-step explanation:

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Factored form of 16m^4-121
AnnZ [28]

16m^4-121 =(4m^2-11)(4m^2+11)

8 0
3 years ago
If (2x,3y) =(8, 9),find x and y​
solong [7]

Answer:

x = 4, y = 3

Step-by-step explanation:

Equating corresponding coordinates , gives

2x = 8 ( divide both sides by 2 )

x = 4

and

3y = 9 ( divide both sides by 3 )

y = 3

5 0
3 years ago
Find the product of the given polynomials. <br> (5x + 8 – 6r) (4 + 2r – 7)<br><br><br>​
Inessa05 [86]

Answer:

-12r² + 10xr - 15x + 34r - 24

Step-by-step explanation:

1. Organize it, variables first - as well as adding constants such as 4 and -7

(5x - 6r + 8) (2r - 3)

2. Start by multiplying the 5x by (2r - 3), then -6r, followed by 8

(10xr - 15x) + (-12r^2 + 18r) + (16r - 24)

3. Simplify

10xr - 15x - 12r² + 18r + 16r - 24

4. Order by greatest to smallest factorial

-12r² + 10xr - 15x + 18r + 16r - 24

5. Combine like variables

-12r² + 10xr - 15x + 34r - 24

6 0
3 years ago
50 POINTS NO JOKE IM DYING I NEED HELP
Effectus [21]

Answer:

9 x 7 = 63 is cost of 9 people

3 x 9

6 x 8

8 x 8

9 x 7

3 0
3 years ago
Who wants to help i really dont wanna do this question
SOVA2 [1]

Answer:

71

Step-by-step explanation:

(2x² = 2 × 5² = 2 × 25) + ([4x = 4 × 5 = 20] + 1)

(50) + (21) = 71

5 0
2 years ago
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