All categories

3 years ago

SOMEONE PLEASE HELP....

Mathematics

1 answer:

Anton [14]3 years ago

6 0

Answer:

Step-by-step explanation:

$(3x+4)(x^2+px+5) \\=3x^3+3px^2+15x+4x^2+4px+20\\=3x^3+(3p+4)x^2+(15+4p)x +20$

since we know that $x^2$ in this expansion is $-23x^{2}$

thus $3p+4=-23\\3p=-27\\p=-9$

Hope that helps!

You might be interested in

Emily buys 14 balloons. 3 are red, 4 are white, and the rest are blue. What is the ratio of blue balloons to the total number of

8_murik_8 [283]

Answer:

3:4:7

Step-by-step explanation:

14-(3+4)

=14-7

red:white:blue

3:4:7

5 0

3 years ago

Read 2 more answers

Consider the following sets: A = {x | x is alive} F = {x | x is in France} M = {x | x is a national monument} W = {x | x is a wo

nirvana33 [79]

(1) Paris ∈ F. True (Paris is the capital of France)

(2) The Statue of Liberty ∈ A. False (a statue is not alive)

(3) The Statue of Liberty ∉ M. False (SoL is a monument)

(4) Abraham Lincoln belongs to none of these sets. True

(5) The Eiffel Tower is in more than one of these sets. True (ET is in F and M)

5 0

4 years ago

Read 2 more answers

Can someone PLZZZZ HELP!!!!

swat32

Answer:

The solution is:

Part A. $\sqrt{5}^{\frac{7k}{3}})$ which is sqrt(5)^7k/3[/tex]

Part B. k = 18/7

Step-by-step explanation:

Part A.

To solve this part, we're going two use THREE important properties of exponents:

1. $(x^{n})^{m} = x^{nm}$

2. $\frac{x^{n}}{x^{m}} = x^{n-m}$

3. $\sqrt[n]{x^{m}} = x^{\frac{m}{n} }$

Let's work the numerator using the properties 1, 2 and 3:

$(\sqrt{5}^{3} )^{\frac{k}{9} } } = (\sqrt{5}^{3\frac{k}{9}}) = (\sqrt{5}^{\frac{k}{3}})$

Let's work the denominator using the properties 1, 2 and 3:

$(\sqrt{5}^{6} )^{-\frac{k}{3} } } = (\sqrt{5}^{6\frac{k}{3}}) = (\sqrt{5}^(2k))$

Now dividing the numerator by the denominator:

$\sqrt{5}^{\frac{k}{3}-(-2k)})=\sqrt{5}^{\frac{7k}{3}})$

Part B

if $5^{\frac{3}{2} } 5^{\frac{3}{2}} = \sqrt{5}^{\frac{7k}{3}})$

Then:

$5^{3} = 5^{\frac{7k}{6}})$

So $\frac{7k}{6}} = 3$

Solving for k, we have:

k = 18/7

7 0

4 years ago

What does coplanar mean??.

kobusy [5.1K]

On the same plane. Not in a straight line but on the same plane

7 0

3 years ago

Read 2 more answers

I need help please.:)

lidiya [134]

Answer:

46.66...% Males.

Step-by-step explanation:

Total males: 14

Total females: 16

Overall total: 30

14 ÷ 30 = 0.466... x 100 = 46.66%

5 0

3 years ago

Read 2 more answers