Hello,
A=(2.21082279...,3.996803798)
$\left \{ {{h=-0.2d^2+2.25d} \atop {h=d/6+21.77/6}} \right. \\\\

\Rightarrow\ 1.2d^2-12.5d+21.77=0\\\\

\Rightarrow\ d=2.21082279..\ or\ d=8.20584..\\\\

$

8 0

3 years ago

Read 2 more answers

Understanding Transversals<br> Use the diagram to complete the statements. (please helpp)

Semenov [28]

Answer:

Step-by-step explanation:

3 0

3 years ago

Hong reads 9 3/4 chapters in 3 3/8 hours. What is the unit rate in chapters per hour? Write your answer as a fraction or a mixed

Sav [38]

The unit rate is: $2\frac{8}{9}$ chapters per hour

Step-by-step explanation:

Given

chapters read = $9\frac{3}{4} = \frac{39}{4}$

Time = $3\frac{3}{8} = \frac{27}{8}$

Unit rate is calculated by dividing the total chapters by total time

So,

$Unit\ rate = \frac{\frac{39}{4}}{\frac{27}{8}}\\= \frac{39}{4} * \frac{8}{27}\\= 13 * \frac{2}{9}\\=\frac{26}{9}\\=2\frac{8}{9}$

Hence,

The unit rate is: $2\frac{8}{9}$ chapters per hour

Keywords: Unit rate, fractions

Learn more about fractions at:

#LearnwithBrainly

4 0

4 years ago

Which expression is equivalent to

deff fn [24]

Answer:

b) log8 4 + log8 a + log8 (b- 4) - 4 log8 c

Step-by-step explanation:

The given expression is log8 4a ((b - 4) ÷ c^4)

Here we have to use the quotient rule.

log(a/b) = log a - log b

log8 4a (b- 4) - log8 4a(c^4)

Using the product rule log(ab) = log (a) + log (b)

log8 4a + log8 4a(b-4) - log8 4a - log8 (c^4)

log8 4a(b - 4) - log8 (c^4)

log8 4a + log8 (b- 4) - 4 log8 c

Again using the product rule.

log8 4 + log8 a + log8 (b- 4) - 4 log8 c

So it is b.

Thank you.

4 0

3 years ago