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3 years ago

Helppppppppppppppppp

Mathematics

2 answers:

iren [92.7K]3 years ago

7 0

Answer:

3rd one

Step-by-step explanation:

Mark me brainliest pls

Hope this helps!

Sergio039 [100]3 years ago

5 0

Answer:

Click the third one.

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25 POINTS!! Help will give the brainliest

polet [3.4K]

Answer:

value of a in terms of b and c is: $\mathbf{a=bc}$

Option D is correct.

Step-by-step explanation:

We are given:

$a=b^2c^2d \:and\: d=\frac{1}{a}$

We need to find a in terms of b and c

We have: $a=b^2c^2d$

Put value of d $d=\frac{1}{a}$

$a=b^2c^2(\frac{1}{a})\\a^2=b^2c^2\\Taking \:squareroot\:on\:both\:sides\\\sqrt{a^2}=\sqrt{b^2c^2}\\a=bc$

So, value of a in terms of b and c is: $\mathbf{a=bc}$

Option D is correct.

6 0

3 years ago

yvonne has a goal of buying a brand new home within a year. she’s afraid that she will be unable to save the money that she need

malfutka [58]

The correct answer for the question that is being presented above is this one: "b. Borrow the money for the down payment and pay it back later." Yvonne's plan for achieving her goal of buying a home should not include this one: b. Borrow the money for the down payment and pay it back later
Read more on Brainly - brainly.com/sf/question/1279133

7 0

3 years ago

Read 2 more answers

A submarine dives 280 feet below the water surface. It then rises back up to wards the surface at 55 feet per minute for 5 minut

Lapatulllka [165]

The submarine is 5 feet below the water surface.
-280+55(5)=-5

8 0

3 years ago

Which of the following should not be capitalized?

Oduvanchick [21]

Answer: SORRY I READ THE QUESTION WRONG

Food items

Step-by-step explanation:

Proper nouns should be capitalized. Food items is NOT a proper noun

5 0

3 years ago

Read 2 more answers

F(x) = lnx/x

My name is Ann [436]

$f(x) = \frac{lnx}{x}$

(a) $f'(x) = \frac{d}{dx}[\frac{lnx}{x}]$
Using the quotient rule:
$f'(x) = \frac{\frac{1}{x} \cdot x - lnx}{x^{2}}$
$f'(x) = \frac{1 - lnx}{x^{2}}$

For maximum, f'(x) = 0;
$\frac{1 - lnx}{x} = 0$
$lnx = 1, x = e$

(b) <em>Deduce:
</em> $e^{x} \geq x^{e}, x > 0$
<em>
Soln:</em> Since x = e is the greatest value, then f(e) ≥ f(x) > f(0)
$\frac{ln(e)}{e} \geq \frac{lnx}{x}$
$\frac{1}{e} \geq \frac{lnx}{x}$ , since ln(e) is simply equal to 1

Now, since x > 0, then we don't have to worry about flipping the signs when multiplying by x.
$\frac{x}{e} \geq lnx$
$x \geq elnx$
$x \geq ln(x^{e})$

Taking the exponential to both sides will cancel with the natural logarithmic function in the right hand side to produce:
$e^{x} \geq e^{ln(x^{e}})$
$e^{x} \geq x^{e}$ , as required.

3 0

3 years ago