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3 years ago

Explain why it might be useful to approximate the value rather than use the exact value

1 answer:

8 0

It may be useful because sometimes ur estimations and when u get your answer half of the time it's very close to it or a number less or a number higher

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If x=am-an then a equals

Iteru [2.4K]

ANSWER: a=x/(m-n)

x=a(m-n)
a=x/(m-n)

6 0

3 years ago

terry spent $8,888 on landscaping for his ya?rd. The cost was $22 per square foot. how many square feet is terry's yard

marin [14]

Answer:

404 sqft

Step-by-step explanation:

8888/22 = 404 sqft

3 0

3 years ago

What is the solution to he equation (y/y-4)-(4/y+4)=3^2/y^2-16

kicyunya [14]

Answer:

$y=\pm i \sqrt{7}$

Step-by-step explanation:

Given equation is $\frac{y}{\left(y-4\right)}-\frac{4}{\left(y+4\right)}=\frac{3^2}{(y^2-16)}$

Factor denominators then solve by making denominators equal

$\frac{y}{\left(y-4\right)}-\frac{4}{\left(y+4\right)}=\frac{3^2}{(y^2-16)}$

$\frac{y}{\left(y-4\right)}-\frac{4}{\left(y+4\right)}=\frac{9}{(y+4)\left(y-4\right)}$

$\frac{y\left(y+4\right)-4\left(y-4\right)}{\left(y-4\right)\left(y+4\right)}=\frac{9}{(y+4)\left(y-4\right)}$

$y\left(y+4\right)-4\left(y-4\right)=9$

$y^2+4y-4y+16=9$

$y^2=9-16$

$y^2=-7$

take squar root of both sides

$y=\pm \sqrt{-7}$

$y=\pm i \sqrt{7}$

Hence final answer is $y=\pm i \sqrt{7}$ .

7 0

3 years ago

Which expression is equivalent to 3√32x^8y^10?

denpristay [2]

<span>
3√(32x^8y^10)
= </span><span>3√(16*2 x^8y^10)
= 12x^4y^5 </span>√2

Hope it helps

6 0

3 years ago

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chloe and jack play 4 games. the probability that chloe wins any game is 4/5. what is the probability that chloe wins for the 1s

Iteru [2.4K]

$\dfrac{1}{5}\cdot\dfrac{1}{5}\cdot\dfrac{1}{5}\cdot\dfrac{4}{5}=\dfrac{4}{625}$

6 0

3 years ago

Read 2 more answers