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Ivahew [28]
3 years ago
13

Subtract. (7x2 + 6) - (2x-5)

Mathematics
2 answers:
zalisa [80]3 years ago
8 0

Answer: 7x2−2x+11

Step-by-step explanation:

Distribute the Negative Sign:

7x2+6+−1(2x−5)

7x2+6+−1(2x)+(−1)(−5)

7x2+6+−2x+5

Combine Like Terms:

7x2+6+−2x+5

(7x2)+(−2x)+(6+5)

7x2+−2x+11

Annette [7]3 years ago
4 0

Answer:

25-2x

Step-by-step explanation:

(7x2+6)-(2x_5)

(14+6)-2x+5

20_2x+5

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Can somebody help me with this? Thank you
melomori [17]

Answer:

x≥1 or x≤−3

Step-by-step explanation:

x+1≥2  possibility 1

x+1−1≥2−1  Subtract 1 from both sides

x≥1

x+1≤−2  Possibility 2

x+1−1≤−2−1  Subtract 1 from both sides

x≤−3

4 0
3 years ago
Given: ABCD is a parallelogram and AC bisects BD.<br> Prove: AB is congruent to BC.
earnstyle [38]

Let's see

In ∆ABE and ∆CBE

  • BE=BE(Common side)
  • AE=EC[Diagonals of a parallelogram bisect each other]
  • <AEB=<BEC[90°]

So by

SAS congruence the triangles are congruent

AB=BC

  • Proved

Fact:-

It's already given AC is perpendicular to BD

  • It means diagonals are perpendicular to each other

According to general property of rhombus this parallelogram is also a rhombus.

So sides are equal hence AB =BC

3 0
2 years ago
Can the sides of a triangle have lengths 2, 13, and 14?
ohaa [14]

Answer:

Yes

Step-by-step explanation:

The larger side is smaller than the other sides combined

(2 + 13) > 14

Hope this helps

7 0
2 years ago
Please help I really need it thx!!
VashaNatasha [74]

Answer:

a- (0,6)

b- (2,8)

c- (6,7)

d- (3,4)

d- (5,2)

6 0
3 years ago
Read 2 more answers
If 100 bullets cost $80? how much would 1 bullet cost?
Lisa [10]

Each bullet would cost 100/80 = $1.25 if 100 bullets cost $80.

3 0
3 years ago
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