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2 years ago

Describe the algebraic expression ^ 3 + 1

1 answer:

3 0

The algebraic expression x³ + 1 as given in the task content can be described as a binomial and a a cubic function as it has order 3.

<h3>What is the description of the expression x³ +1?</h3>

The expression as given in the task content has 2 terms and hence, it change termed a binomial.

Also, since the greater power of the variable x is 3, it follows that the order of the equation is 3 and it is a cubic algebraic expression.

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In the figure x:y=2:3 and y:z=3:5 if x=10 find the value of z<br> a.15<br> b.20<br> c.25<br> d.30

masha68 [24]

The answer is b 20
because the ratio of both is 1:2
and then x =10 then z=20

brainliest and follow please

4 0

3 years ago

The First National Bank of Wilson has 600 checking account customers. Recent sample of 50 of these customers show 29 have a visa

uranmaximum [27]

Answer:

$0.58 - 1.64\sqrt{\frac{0.58(1-0.58)}{50}}=0.466$

$0.58 + 1.64\sqrt{\frac{0.58(1-0.58)}{50}}=0.694$

The 90% confidence interval would be given by (0.466;0.694)

Step-by-step explanation:

The estimated proportion of interest would be:

$\hat p=\frac{29}{50}= 0.58$

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 90% of confidence, our significance level would be given by $\alpha=1-0.90=0.1$ and $\alpha/2 =0.05$ . And the critical value would be given by:

$z_{\alpha/2}=-1.64, z_{1-\alpha/2}=1.64$

The confidence interval for the mean is given by the following formula:

$\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}$

If we replace the values obtained we got:

$0.58 - 1.64\sqrt{\frac{0.58(1-0.58)}{50}}=0.466$

$0.58 + 1.64\sqrt{\frac{0.58(1-0.58)}{50}}=0.694$

The 90% confidence interval would be given by (0.466;0.694)

4 0

4 years ago

If sin theta = -(sqrt(3))/2 and pi < theta < (3pi)/2, what are the values of cos theta and tan theta?

Gwar [14]

For $\pi$ , we expect $\cos\theta$ . Then recalling that $\sin^2\theta+\cos^2\theta=1$ , we have

$\cos\theta=-\sqrt{1-\sin^2\theta}=-\dfrac12$

Then by definition of tangent,

$\tan\theta=\dfrac{\sin\theta}{\cos\theta}=\dfrac{-\frac{\sqrt3}2}{-\frac12}=\sqrt3$

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4 years ago

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Which statement best describes the conditions for f ( x ) = a ( b ) x to be a model for exponential growth?

irina1246 [14]

Exponential functions grow is the base is greater than 1, while you have an exponential decay if the base is between 0 and 1. Finally, exponentials are not defined, as real functions, if the base is negative.

So, the answer is D, b > 1

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3 years ago

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ABCD is a rectangle. What is the value of x? (1 point)

Nookie1986 [14]

Answer: The value of X is unknown

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3 years ago

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