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-BARSIC- [3]
4 years ago
11

(3x2-10x+4)+(10x-5x+8)

Mathematics
1 answer:
Luba_88 [7]4 years ago
8 0

Answer:

13x^2 - 15x + 12

Step-by-step explanation:

Add like terms.

3x^2 + 10x^2 = 13x^2

-10x + -5x = -15x

4 + 8 = 12

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There is a bag with only red marbles and blue marbles.
mote1985 [20]

Answer:

red marbles

Step-by-step explanation:

Since the formula is;

Probability = number of required outcome

_______________________

number of possible outcome

3/8. = x/56

8x. = 168

x. 21 ( number of blue marbles)

Therefore if the total marbles = 56 and 21 of the marbles are blue then to get the red marbles

= 56 - 21

= 35

3 0
3 years ago
I will appreciate a quick answer
Elan Coil [88]

Answer:

∠SRQ = 75º, ∠TQR = 75º, ∠TSR = 105º, ∠STQ = 105º

Step-by-step explanation:

Since the quadrilaterals are similar, their corresponding angles are the same.  

3 0
3 years ago
X^2-x-12 factor completely
steposvetlana [31]
Use the sum-product pattern

2
−

−
1
2
x
2
−
x
−
12
x2−x−12

2
+
3

−
4

−
1
2
x
2
+
3
x
−
4
x
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12
x2+3x−4x−12
2
Common factor from the two pairs

2
+
3

−
4

−
1
2
x
2
+
3
x
−
4
x
−
12
x2+3x−4x−12

(

+
3
)
−
4
(

+
3
)
x
(
x
+
3
)
−
4
(
x
+
3
)
x(x+3)−4(x+3)
3
Rewrite in factored form

(

+
3
)
−
4(+3)x
(x+3)−4(x+3)
x(x+3)−4(x+3)
(−4)(+3)
(x−4)(x+3)
(x−4)(x+3)
5 0
2 years ago
2+2×4 that is my question i need help​
devlian [24]

Answer:

10

Step-by-step explanation:

2+(2x4)

2x4=8

2+8=10

6 0
3 years ago
Read 2 more answers
10. Y is the midpoint between points X and Z. If Y has a coordinate of (6,4) and Z has a coordinate of
inysia [295]

Answer 10:

<em>X </em>= (5,0)

Answer 11:

<em>AB</em> = 11.18

Answer 12:

<em>N/A</em>

Step-by-step explanation:

3 0
3 years ago
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