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3 years ago

Please help. Don’t understand this math problem

Mathematics

1 answer:

Sonja [21]3 years ago

4 0

Answer:

-24r + 56

Step-by-step explanation:

To find the area of this rectangle we multiply width and length

8 × (-3r + 7) = -24r + 56

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Sawyer recorded the number of different types of pets his friends have in the table shown below: Cats 2 Dogs 3 Rabbits 1 Guinea

Anit [1.1K]

The plot should look like this
A line with 4 tick marks labeled Cat, Dog, Rabbit, and Guinea Pig
 Cat has 2 crosses
Dog has 3 crosses
Rabbit has 1 cross (you chose the wrong answer; you picked 2 instead of 1)
Guinea Pig has 3 crosses
And of course, the line is labeled Number of Pets, and title of graph is Pet Owners.

7 0

4 years ago

Read 2 more answers

What is the expanded form of 84.22

Ira Lisetskai [31]

Answer:

80 + 4 + 2/10 or 0.2 + 2/100 or 0.02. When I wrote the fractions, it really depends on what your teacher taught you to do.

Step-by-step explanation:

8 x 10 + 4 x 1 + 2 x 1/10 + 2 x 1/00

That is just the explanation for the equation.

4 0

4 years ago

Find dy/dx when y = Ln (sinh 2x). A. 2 cosh 2x B. 2 sech 2x C. 2 coth 2x D. 2 csch 2x

givi [52]

The function given is a composite function. Let's work from the outside in:
$y=(ln(sinh(2x)))$

First step:
$\frac{d}{dx}[y]= \frac{d}{dx}[ln(sinh(2x))]$

Now, let's work it out:
$\frac{dy}{dx} = \frac{1}{sinh(2x) } * \frac{d}{dx}[sinh(2x)]$

Next step:
$\frac{dy}{dx} = \frac{1}{sinh(2x) } * cosh(2x) * \frac{d}{dx}[2x]$

Next step:
$\frac{dy}{dx} = \frac{1}{sinh(2x) } * cosh(2x) *2$

Simplify:
$\frac{dy}{dx} = \frac{2cosh(2x)}{sinh(2x) }$

Simplify further:
$\frac{dy}{dx} = 2 (\frac{cosh(2x)}{sinh(2x)})$

Remember that:
${\frac{cosh(x)}{sinh(x)} = coth(x)$

So, your final answer is:
$\boxed{ \frac{dy}{dx} = 2coth(2x) }$

So, your answer is C. Hope I could help you!

8 0

4 years ago

The composite figure is made up of three simpler shapes. What is the area of the figure?

Flauer [41]

4 × 3
−−−− = 6cm²
2

6 × 3 = 18cm²

10 × 5 = 50cm²

50 + 18 + 6 = 72cm²

7 0

2 years ago

Read 2 more answers

Round the following value to the nearest cent . $506.106 Im confused.

matrenka [14]

I would be 506.110 cause if it is over five then round it to ten

6 0

4 years ago