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2 years ago

What is the value of 4x^3 +4x when x=4

Mathematics

1 answer:

Alexxandr [17]2 years ago

5 0

Answer:

0.75487

Step-by-step explanation:

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___ L = 240 kL ? A. 24,000 B. 240,000 C. 0.240 D. 2.4

koban [17]

It's b 240000
I'm sorry if wrong I'm not too good at these things

6 0

2 years ago

Read 2 more answers

Is 7/8 or 11/10 closer to 1? How did you decide anybody help please?

erik [133]

Let

A-----> $\frac{7}{8}$

B-----> $\frac{11}{10}$

C-----> $1$

we know that

Point A-------> Multiply numerator and denominator by $10$

$\frac{7*10}{8*10} =\frac{70}{80}$

Point B-------> Multiply numerator and denominator by $8$

$\frac{11*8}{10*8} =\frac{88}{80}$

Point C-------> Multiply numerator and denominator by $80$

$\frac{1*80}{1*80} =\frac{80}{80}$

Find the distance Point A to Point C

$\frac{80}{80} -\frac{70}{80} =\frac{10}{80}$

Find the distance Point B to Point C

$\frac{88}{80} -\frac{80}{80} =\frac{8}{80}$

therefore

$\frac{8}{80} < \frac{10}{80}$

Point B is closer to Point C

$\frac{11}{10}$ is closer to $1$

the answer is

$\frac{11}{10}$ is closer to $1$

5 0

2 years ago

Read 2 more answers

If, while training for a marathon, you ran 76 miles in 2 2/3 months, how many miles did you run each month? (Assume you ran the

Gnesinka [82]

In 2 2/3 months you ran 76 miles.
To know how many miles you ran each month, you can simply use cross multiplication as follows:
number of miles per month= (76) / (2 2/3)
= 28.5 miles

3 0

2 years ago

Need help ASAP Will mark you brainlist

sattari [20]

Answer:

Step-by-step explanation:

6 0

2 years ago

EXPLAIN THE SECOND PART.......

alexdok [17]

$\tan^2\theta-\sin^2\theta=\dfrac{\sin^2\theta}{\cos^2\theta}-\sin^2\theta$
$=\sin^2\theta\left(\dfrac1{\cos^2\theta}-1\right)$
$=\sin^2\theta(\sec^2\theta-1)$
$=\sin^2\theta\tan^2\theta$

Now if $0^\circ$ , then both $\sin\theta>0$ and $\tan\theta>0$ . Adding two positive numbers gives another positive number, so $\tan\theta+\sin\theta>0$ . Why this is useful will be apparent shortly.

Back to the identity:

$\tan^2\theta-\sin^2\theta=\tan^2\theta\sin^2\theta$

Factorizing the left hand side, we have

$(\tan\theta-\sin\theta)(\tan\theta+\sin\theta)=\tan^2\theta\sin^2\theta$

Now, any number squared will be positive, which means the right hand side is necessarily greater than 0.

We showed earlier that $\tan\theta+\sin\theta>0$ . So we understand that we have

$\underbrace{(\tan\theta-\sin\theta)}_?\underbrace{(\tan\theta+\sin\theta)}_+=\underbrace{\tan^2\theta\sin^2\theta}_+$

The only way to multiply a number by a positive number to get yet another positive number is to have the first number also be positive, which means

$\tan\theta-\sin\theta>0$

and from this it follows that

$\tan\theta>\sin\theta$

in the provided region.

6 0

2 years ago