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3 years ago

Hich values are solutions to the inequality?

Mathematics

2 answers:

Troyanec [42]3 years ago

7 0

$2r\leq3r-8\\0\leq r-8\\8\leq r\\r\geq8$

So, in the list of numbers, 8 and 9 are solutions

Ede4ka [16]3 years ago

7 0

Answer:

8 and 9

Step-by-step explanation:

1. subtract 3r from both sides to get -1r≤-8

2. divide both sides by -1 to get r by itself r=8

3. any number greater than 8 will be a true statement

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Simplify the complex fraction. 3/4 2/5

laiz [17]

Answer:

assuming you meant (3/4)/(2/5)

15/8 or 1 7/8

Step-by-step explanation:

use a calculator

8 0

3 years ago

Which Exponential equation is equivalent to the logarithmic equation below? <br> C= in 3

Bess [88]

Answer

e^c = 3

Step by step explanation

The general exponential equation is y = a^x, where "a" is the base and "x" is the exponent.

We are given c = ln 3

Here the base is "e"

e^c = e^ln 3

e^c = 3 [base "e" and "ln" get cancelled because they are inverse]

Therefore, the answer is e^c = 3

Hope you will understand the concept.

Thank you.

7 0

3 years ago

Hello pls help with this

lutik1710 [3]

Answer:

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

The volume of a right circular cone is found using the equation V = 1 3 π r 2 h . Which equation represents the volume solved fo

alex41 [277]

Solving for a variable in an equation means, we are changing the subject of formula of the equation.

The equation of r is: $\mathbf{r = \sqrt{\frac{3V}{\pi h}}}$

The equation is given as:

$\mathbf{V = \frac 13 \pi r^2h}$

We start by multiplying both sides by 3

$\mathbf{V \times 3= \frac 13 \pi r^2h \times 3}$

Rewrite as:

$\mathbf{3V= \pi r^2h}$

Divide both sides by $\mathbf{\pi h}$

$\mathbf{\frac{3V}{\pi h}= \frac{\pi r^2h}{\pi h}}$

Cancel out common factors

$\mathbf{\frac{3V}{\pi h}= r^2}$

Take square roots of both sides

$\mathbf{\sqrt{\frac{3V}{\pi h}}= \sqrt{r^2}}$

Evaluate the right-hand sides

$\mathbf{\sqrt{\frac{3V}{\pi h}}= r}$

Make r the subject

$\mathbf{r = \sqrt{\frac{3V}{\pi h}}}$

Hence, the resulting equating for r is:

$\mathbf{r = \sqrt{\frac{3V}{\pi h}}}$

Read more about the subject of formulas at:

brainly.com/question/21866313

6 0

2 years ago

A survey of students at a university shows that 3out of 4 drinks coffee. of the students who drink coffee, 1 out of 5 add cream

Snezhnost [94]

Answer:

1200

Step-by-step explanation:

The number who drink coffee is 3/4 of 8000, so ...

... (3/4)×8000 = 6000.

Of those, 1/5 add cream, so the number of coffee drinkers who add cream to their coffee is ...

... (1/5)×6000 = 1200.

_____

<em>Alternate solutions</em>

We have computed ...

... (1/5)×((3/4)×8000) = 1200

Since multiplication is associative, you can multiply the fractions first, if you wish:

... ((1/5)×(3/4))×8000 = (3/20)×8000

... = 24000/20 = 1200

... = 3×(8000/20) = 3×400 = 1200

6 0

2 years ago