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JulijaS [17]
3 years ago
13

(7x2+3x-6)-(-4x2+x-2)

Mathematics
2 answers:
Alex17521 [72]3 years ago
7 0
The correct answer is 4 ( 6x - 1 )
Reptile [31]3 years ago
4 0

Answer:

-4

Step-by-step explanation:

7 x2 = 14+3 x-6=-18

so 14 + -18=-4

-4 x 2 = -8 + x-2= -6

x-2

-4 is x

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If a square has a side length of 5cm what would the area be
EastWind [94]

Answer:

25 cm squared

Step-by-step explanation:

To find area we multiply the side lengths

5cm x 5cm=25 cm squared

3 0
3 years ago
Heather finished the 12-kilometer race in 2 hours. If Heather kept her pace constant, what was her rate? A. 24 km/hr. B. 14 km/h
andriy [413]

Answer: D, 6km/hr.

Step-by-step explanation:

Heather can finish a 12-kilometer race in 2 hours, and now we have to find how many kilometers she can ride/run at in 1 hour.

How many hours can Heather run in 1 hour? To solve that, we can use the equation 12 ÷ 2.

12 ÷ 2 = 6.

Therefore, if Heather keeps her pace constant, then her rate will be 6km/hr, or D.

7 0
3 years ago
(a) A survey of the adults in a town shows that 8% have liver problems. Of these, it is also found that 25% are heavy drinkers,
jekas [21]

Answer:

The probability that the selected adult has liver problems is 0.08

Step-by-step explanation:

In this question, from the data given, we want to calculate the probability that an adult selected at random has liver problems.

Let E(L) be the event that an adult has liver problems.

The probability is directly obtainable from the question and it is given as 8%

Thus, the probability that the selected adult has liver problems; P(L) = 8% = 8/100 = 0.08

3 0
3 years ago
if i earned 250$ a week and put 25% away into savings, how much would i have in 3 years in my savings?
OlgaM077 [116]

Answer:

187.5 is what u have left each week after takign away the 25%.

Step-by-step explanation:

Hope this helps? :)

7 0
2 years ago
The force (F) needed to cause the acceleration (a) of an object of mass, m, is given by the equation, F = ma where m is the obje
Liono4ka [1.6K]

Answer: According to Newton s Second Law of Motion, also known as the Law of Force and Acceleration, a force upon an object causes it to accelerate according to the formula net force = mass x acceleration. So the acceleration of the object is directly proportional to the force and inversely proportional to the mass.

Step-by-step explanation:

3 0
3 years ago
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