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Luden [163]
3 years ago
8

Hey can you please help me posted picture of question

Mathematics
1 answer:
mixer [17]3 years ago
7 0
The nature of roots of a quadratic equation can be determined from its discriminant.

Discriminant = b² - 4ac

b = coefficient of x term = 2
a = coefficient of squared term = 2
c = constant = 4

So,

Discriminant = 4 - 4(2)(4) = -28

Since the discriminant is negative, the two roots of the given equation will be complex .

Therefore, the answer to this question is option B
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I need help show work<br> ill mark brainliest​
Archy [21]

Answer:

The population will be 896 turtles 6 years later ⇒ B

Step-by-step explanation:

The exponential increasing formula is y = a(1+r)^{x}, where

  • y is the new value
  • a is the initial value
  • r is the rate of increase in decimal
  • x is the time in years

∵ There are 300 turtles

∴ a = 300

∵ The population of the turtles exponentially increases 20% each year

∴ r = 20%

→ Divide it by 100 to change it to decimal

∵ 20% = 20 ÷ 100 = 0.2

∴ r = 0.2

∵ The time is 6 years

∴ x = 6

→ Substitute these values in the exponential formula above

∵ y = 300(1+0.2)^{6}

∴ y = 300(1.2)^{6}

∴ y = 895.7952

→ Round it to the nearest whole number

∴ y = 896

∴ The population will be 896 turtles 6 years later

7 0
3 years ago
Mildred bought 2-cent stamps, 4-cent stamps, and 5-cent stamps for $4.35. The number of 2-cent stamps exceeded the number of 5 c
vfiekz [6]

5 cent = 0.05x

<span><span>2 cent  </span>= 0.02(x+50)</span>

4 cent = 0.04(2x-10)

 

0.05x + 0.02(x+50) + 0.04(2x-10)

0.05x + 0.02x +1 + 0.08x -0.4 = 4.35

0.15x +0.6 = 4.35

0.15x = 3.75

X = 3.75 / 0.15 = 25

<span> 25 5 cent stamps ( 25*0.05 = 1.25)</span>

25+50 = 75 2 cent stamps ( 75*0.02 = 1.50)

2*25 =50-10 = 40 4 cent stamps ( 40*0.04 =1.60)

 

1.25 + 1.50 +1.60 = 4.35

5 cent = 25

2 cent = 75

4 cent = 40


8 0
3 years ago
can someone explain this problem to me please it is the number of players on each team is at most 5. what i have to do is write
lbvjy [14]
So what you'll do is take a number greater than ( > )or less than ( < ) 5 or equal to( = ) Example(s): 5=5 , 6>5 , 4<5.
3 0
3 years ago
The product of 7 and a number, increased by 3, is equal to twice the number, subtracted from 39.
anyanavicka [17]
Let the number be X. Then we find
7X + 3 = 39 - 2X

Now we collect the terms and find
9X = 36

Finally we divide by 9
X = 4

So our answer is 4
7 0
3 years ago
What is the answer to 7/4÷3/5​
Whitepunk [10]
This is what I got as my answer hope it helps!

5 0
3 years ago
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