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4 years ago

14. Find the real-number solutions to the equation p3 - 4p2 = 0

Mathematics

1 answer:

forsale [732]4 years ago

7 0

Answer:

p=0 or p=4

Step-by-step explanation:

first simplify the equation

p^3-4p^2=0

p(p^2-4p)=0

p(p-4)(p-0)=0( factorise p^2-4p)

p=0 p=0. p-4=0,p=4

therefore,p=0 or p=4

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Abigail, who works for a region's department of health, is looking for evidence that the percentage of adults in the region who

Murrr4er [49]

Answer: $H_0: p\geq0.158\\\\ H_a:p$

Step-by-step explanation:

Let p be the population proportion of adults who were surveyed are current smokers.

Given claim : Abigail, who works for a region's department of health, is looking for evidence that the percentage of adults in the region who are current smokers has decreased from 15.8% in 2015.

i.e. $p$

Since the alternative hypothesis takes unequal sign .

Then , the null and alternative hypotheses for this hypothesis test will be :_

$H_0: p\geq0.158\\\\ H_a:p$

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3 years ago

Anyone help me ASAP, its due in an hour, plz show all the working, THANK YOU SO MUCH

Leona [35]

Answer:

Step-by-step explanation:

First, start out with the parent function:

$y = b^{x}$

Now, we look at the transformations, and make the equation.

We see that the graph shifted down 4 units, since the graph's horizontal asymptote is at y = -4.

$y = b^{x} - 4$

We see point (0, -3) to point (1, -1). The value of b would be 3. The reason is that when you plug 0 in, you get 1, then 1 - 4 equals 3. (0, -3),

Then, when you plug in 1, you get 3, then 3 - 4 equals -1. This matches up with the graph.

This is the answer:

$y = 3^{x}-4$

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3 years ago

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vlada-n [284]

Answer:90

Step-by-step explanation:

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7 0

2 years ago

Read 2 more answers

What are the solutions of the quadratic equation 49x^2=9?

Flauer [41]

Simplifying 49x^2 + -9 = 0
Reorder the terms: -9 + 49x^2 = 0
Solving -9 + 49x^2 = 0 Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '9' to each side of the equation. -9 + 9 + 49x^2 = 0 + 9
Combine like terms: -9 + 9 = 0 0 + 49x^2 = 0 + 9 49x^2 = 0 + 9
Combine like terms: 0 + 9 = 9 49x^2 = 9
Divide each side by '49'. x^2 = 0.1836734694
Simplifying x^2 = 0.1836734694
Take the square root of each side: x = {-0.428571429, 0.428571429}

hope this helps!!

5 0

3 years ago

Lif a/b =⅔ find the value of 2a²+3b²/a²+b²

Contact [7]

Answer:

95/4

Step-by-step explanation:

Given,

a/b =2/3

Therefore, 2a²+3b²/a²+b² = ?

We get,

a/b = 2/3

So, we can write

a = 2 and b = 3

Now,

2×(2)² + 3×(3)²/(2)² + (3)² [Putting the values of a and b]

= 2×4 + 3×9/4 + 9

= 8 +27/4 + 9

= (32+27+36)/4 [ Taking L.C.M, we get 4]

= 95/4

4 0

3 years ago