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LenKa [72]
2 years ago
7

Identify the solution(s) of

title="y ^{2} - 2y - 8 = 7" alt="y ^{2} - 2y - 8 = 7" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Burka [1]2 years ago
8 0

Answer:

y= 5 and -3

Step-by-step explanation:

subtract 7 from both sides to get y^2-2y-15=0

factor the equation to get (y-5)(y+3)=0

add five on both sides to get y=5 and subtract 3 on both sides to get y=-3

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The initial population of a town in the year 2010 was 20 000. By 2014, the population had grown exponentially to 32 500 people.
stiv31 [10]

Answer:

  P = 20000×1.625^(n/4)

Step-by-step explanation:

An exponential equation can be written using the given data:

  value = (initial value)×(growth factor in period)^(n/(period))

Here, the growth is by a factor of 32500/20000 = 1.625, and the period is 4 years. Then your exponential equation is ...

  P = 20000×1.625^(n/4)

3 0
3 years ago
A student is finding the measures of the angles in a triangle that have the ratio 4:4:7. Find the mistake and correct it.
7nadin3 [17]

suppose 4:4:7 be 4x, 4x, 7x

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therefore,

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4x= 4x12= 48

7x= 7x12= 84

so if you plus all of them you get 180

8 0
1 year ago
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Anvisha [2.4K]

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7 0
2 years ago
Does the following relationship represent a function x = y -1
forsale [732]
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7 0
3 years ago
Three times the sum of a number and six<br> 3(x=6)<br> 3(x-6)<br> 3(x+6)<br> 3x+6
Stels [109]

Answer:

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Step-by-step explanation:

Parenthesis after a number typically means multiply, so 3 times the sum of an unspecified number (x), plus 6 would be 3 (x+6)

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