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Fiesta28 [93]
4 years ago
9

Find the value of x in x+y=8 and x-y=6

Mathematics
1 answer:
Diano4ka-milaya [45]4 years ago
7 0

Answer: x=-y+8 and x=y+6

Step-by-step explanation:

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The population of a colony of mosquitoes obeys the law of uninhibited growth. If there are 1000 mosquitoes initially and there a
STatiana [176]

Answer:

24761 mosquitoes

5.4 days

Step-by-step explanation:

Let the equation that shows the population of the mosquitoes after x days,

A=P(1+r)^x

Where,

P = Initial population,

r = rate of increasing per day,

Here, A = 1000, when x = 0,

1000=P(1+r)^0\implies P = 1000

A = 1900 when x = 1,

1900 = P(1+r)^1\implies 1900 = 1000(1+r)\implies 1.9 = 1 + r\implies r = 0.9

Thus, the required function that represents the population after x days,

A=1900(1+0.9)^x=1900(1.9)^x

If x = 4,

The number of mosquito after 4 days,

A=1900(1.9)^4 = 24760.99\approx 24761

If A = 60,000,

60000 = 1900(1.9)^x

\frac{600}{19}=1.9^x

Taking log both sides,

\log(\frac{600}{19})=x\log 1.9

\implies x = \frac{\log(\frac{600}{19})}{\log 1.9}=5.378\approx 5.4

Thus, there will 60,000 mosquitoes after 5 days.

6 0
3 years ago
Find the value of x.<br> 5<br> X<br> 11<br> y
katrin [286]

The value of the variable is 4√5. Then the correct option is C.

<h3>What is the triangle?</h3>

A triangle is a three-sided polygon with three angles. The angles of the triangle add up to 180 degrees.

The similar triangles are shown in the diagram.

16 / x = x / 5

    x² = 16 × 5

      x = 4 √5

Then the value of the variable is 4√5.

Then the correct option is C.

More about the triangle link is given below.

brainly.com/question/25813512

#SPJ1

8 0
2 years ago
If you don’t know the answer please don’t respond. I actually need help :)
seropon [69]

Answer:

I don't know the answer to this question

5 0
3 years ago
What’s the missing length of the triangle. A is 6 and B is 3.
Liula [17]

Answer:

We actually can't answer this because we need at least one angle in the triangle. However, the unknown length has a range. And the range is:

3<C<9. This is from the triangle inequality.

7 0
3 years ago
What is the perimeter of a regular hexagon with a side length of 12 inches?
frez [133]
It would be 6x12 which equals 72 inches
6 0
4 years ago
Read 2 more answers
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