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mezya [45]
3 years ago
8

(9+4c)+(2+3x) add timed so hurry!

Mathematics
1 answer:
Luba_88 [7]3 years ago
5 0

Answer: 3x + 4c + 11

Step-by-step explanation: Combine like terms.

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PLEASE ANSWER!!! I WILL MARK YOU AS BRAINLIEST!!!! An object is launched straight up into the air with an initial velocity of 40
Lana71 [14]

Answer:

6.7 seconds

Step-by-step explanation:

Let's calculate the maximum height covered by the object

Max height= U²Sin²tita/2g

Where g is acceleration due to gravity

Max height= 40²(sin90)²/(2*9.81)

Max height= 1600/19.62

Max height=81.55 m

Total max height= 30+81.55

Total max height= 111.55 m

Time t it will take to travel from the max height at acceleration of 4.9 m/s²

S= ut + ½at²

u= 0 at Mac height

S= 111.5 m

111.5 = ½(4.9)t²

223/4.9= t²

45.5= t²

6.745 seconds= t

6.7 seconds= t

5 0
2 years ago
Can someone help me please !!! ( the answer options are written in blue )
Yakvenalex [24]
4) Here both smaller and larger triangle is "isosceles" in nature.
So, sum would be 180 with two equal sides.
66 + BDE + BED = 180
2 BDE = 180 - 66
BDE = 114 / 2
BDE = 57

<span>In short, Every four angles would be equal to 57

</span>5) A) 7
It is because it must be smaller than the longest side which is equal to 8

6) D) Yes, Because ∠C is congruent to ∠BED

Hope this helps!
8 0
3 years ago
Given the following chemical reaction:
Marizza181 [45]

Answer:

The answer to your question is 12 moles of water.

Step-by-step explanation:

Reaction

                            2 O₂   +   CH₄     ⇒     CO₂    +   2 H₂O

If Oxygen is in excess, then the limiting reactant is methane and we calculate the moles of water produced considering the moles of methane.

                          1 mol of methane --------------  2 moles of water

                           6 moles of methane ---------   x

                           x = (6 x 2) / 1

                           x = 12 moles of water

5 0
3 years ago
Suri makes 15$ per hour and gets a weekly bonus of 25$.Juan makes 14$ per hour and gets weekly bonus of 50$.Is it possible for S
Setler [38]

Answer:

Yes, it is possible for Suri and Juan to make the same amount of wages if they both work 25 hours in one week.

Step-by-step explanation:

Let x = number of hours worked

Let y = total wages earned

Suri:  15x + 25 = y

Juan:  14x + 50 = y

Equate equations and solve for x:

15x + 25 = 14x + 50

Subtract 14x from both sides:  x + 25 = 50

Subtract 25 from both sides: x = 25

Yes, it is possible for Suri and Juan to make the same amount of wages if they both work 25 hours in one week.

3 0
2 years ago
Suppose there are 20 questions on a multiple choice test. Is 25% of the answers are choice B, how many of the answers are not ch
dangina [55]
25% of 20 is 5. If 5 questions are B, the. the other 15 are not B.
5 0
3 years ago
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