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SpyIntel [72]
3 years ago
12

the square of a number increased by 5 times the number is equal to 176. find one number for which this could be true

Mathematics
2 answers:
IgorLugansk [536]3 years ago
8 0
(The square root of a number)
Increased by 5 times the number
Is 176
Therefore
N^2+N(5)
=176 N=-16
avanturin [10]3 years ago
4 0

Answer:

11 or -16

Step-by-step explanation:

The square of a number increased by 5 times the number is equal to 176.

Let the number be x

Then, x²+5x=176

x²+5x-176=0

We use splitting the middle term method

x²+16x-11x-176=0

x(x+16)-11(x+16)=0

(x-11)(x+16)=0

i.e. either x-11=0 or x+16=0

i.e. either x=11 or x=-16

Hence, the number is either 11 or -16

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3 years ago
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Chelsey puts twelve colored pieces of chocolate candy in a bag. Three pieces are green,
nydimaria [60]

Answer:

A) 3/110  

B) 3/110  

C) 3/110  

D) The order doesn’t matter as long as you are drawing out the same three colors.  The probability doesn’t change.

Step-by-step explanation:  

A) 3/12x3/11x4/10=36/1320= 9/330 = 3/110  

B) 3/12x4/11x3/10=36/1320= 9/330 = 3/110  

C) 4/12x3/11x3/10=36/1320 = 9/330 = 3/110  

D) The order doesn’t matter as long as you are drawing out the same three colors.  The probability doesn’t change.

I hope this helps! Have a good day (PLZ GIVE BRAINLIEST)

8 0
3 years ago
The spinner below is spun, then a month of the year is randomly selected. Find the probability of P(unshaded, then a month that
lana [24]

Answer:

C)150

Step-by-step explanation:

P (blue)  fraction = 2/8   decimal=.25     percent=25%

P(purple) fraction=0/8   decimal=0         percent =0%

P(not green)  fraction=5/8     decimal=.625     percent= 62.5%

P(not brown) fraction=8/8     decimal=1   percent =100%

2)Refer to the table on air travel selected airports. Suppose a flight that arrived at El Centro is selected at random. What is the probability that the flight did not arrive on time? write your answer as a fraction, decimal and percent.    

80% on time so 20% are not on time

20/100 ÷ 20 =1/5

20%, .2, 1/5

3)The spinner has 8 sectors labeled with letters. Each sector of the spinner below is the same size, as shown.

If the arrow is spun 400 times , how many times  would it be  expected to land on a sector labeled B?

A)50                 C)150

B)100                D)250

PLEASE MARK ME AS BRAINLIEST

7 0
3 years ago
Is -2.7 an irrational number
ololo11 [35]

Answer:

No

Step-by-step explanation:

An irrational number is a number that never ends or repeats. This decimal ends and it doesn't repeat.

6 0
3 years ago
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You buy a storage case that holds 170 collectible die-cast cars. You have 137 die-cast cars. Write an inequality that describes
Murljashka [212]

Answer:

137 + x <= 170

Step-by-step explanation:

The following inequality will describe this scenario.

137 + x <= 170

the variable x in this scenario represents the total number of cars that you will purchase. This number is added to the number of toy cars that you already own which is 137. As long as this sum is less than or equal to 170 then your storage case will hold them.

4 0
3 years ago
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