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olga55 [171]
3 years ago
9

The expression (3r+5)(2r-6) is equivalent to ?

Mathematics
1 answer:
Sholpan [36]3 years ago
5 0
Is the answer 5r-1? I'm not sure tho sorry if it's wrong!
You might be interested in
if you had a block of each type of wood with the same dimensions,how would their weights compare?explain?
inysia [295]
For this case we have the following equation:
 Density = mass / volume
 If the volume is the same, then the object with the greatest weight will be the one with the highest density.
 You must know the type of way to know the value of the density.
 Answer:
 
The weight of the blocks will depend on the density if the volume is the same.
8 0
3 years ago
Read 2 more answers
Using the sum of the angle measures of a triangle, m angleC=?
Vedmedyk [2.9K]

Answer:

m∠C = 66°

Step-by-step explanation:

Given

m∠ A = 33°

m∠ B = 81°

To determine

m∠C = ?

We know that sum of angles of a triangle is 180°.

so using the equation

m∠ A + m∠ B +  m∠C = 180°

substituting m∠ A = 33°, and m∠ B = 81° in the equatio

33° + 81°+m∠C= 180°

114° + m∠C = 180°

m∠C = 180° - 114°

m∠C = 66°

Therefore,

  • m∠C = 66°
4 0
2 years ago
Annie earns $7.50 per hour working after school. She needs at least $185 for a stereo system. Write an inequality that describes
VMariaS [17]
185 < 7.50 (x)

x = hours
4 0
3 years ago
Read 2 more answers
Help! answer options included
lawyer [7]

Answer:

Y = [-6  6 6 -6]

Step-by-step explanation:

From the given matrices

If X - 2Y  = Z

b - 2c = a ... 1

a -2d = c ...2

4+2a = 16.... 3

a + 2b = b .... 4

From3 ;

2a = 16-4

2a = 12

a = 6

From 4;

a + 2b - b = 0

a+b = 0

a = -b

6 = -b

b  = -6

From1;

b - 2c = a

-6 - 2c = 6

-2c = 12

c = -6

also

a - 2d = c

6-2d = -6

-2d = -6-6

-2d = -12

d = 6

Hence the matrices Y = [-6  6 6 -6]

4 0
2 years ago
Plz help me, it's urgent​
antiseptic1488 [7]
The answer is this!

6 0
3 years ago
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