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2 years ago

Which of the following is a factor of both f(x)=x^2-4x-45 and g(x)=x^2-25

Mathematics

1 answer:

wolverine [178]2 years ago

8 0

Answer:

-5

Step-by-step explanation:

x² - 4x - 45 = 0

(x - 9)(x + 5) = 0

x = 9 or -5

x² - 25 = 0

(x + 5)(x - 5) = 0

x = 5 or -5

-5 is a common factor between both of them

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ruslelena [56]

R=17

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3 years ago

Find the solution set for the following equation. <img src="https://tex.z-dn.net/?f=-%5Csqrt%28x%29%3D5" id="TexFormula1" title=

andrey2020 [161]

Answer:

Solution set = {25}

Step-by-step explanation:

=> $-\sqrt{x} =5$

Dividing both sides by -1

=> $\sqrt{x} = -5$

Taking square on both sides

=> x = 25

<em><u>Solution set = {25}</u></em>

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3 years ago

Using the chart "Amount of $1 at Compound Interest" from previous reading section "More Compound Interest", find the total amoun

vitfil [10]

Answer:

Step-by-step explanation:

the formula used for any interest other then continuously is

A=P(1+r/n)^nt

so... r=rate in decimal form ONLY n=how often interest is paid t=time passed

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A=3000(1+.08/2)^(2)(5)

A=3000(1+.08/4)^(4)(5)

use you calculator to get the answer

it is good practice to use your calculator now because soon you will be using it for population questions and those need to be entered very carefully.

7 0

3 years ago

g Define two jointly distributed continuous random variables, X and Y, as the fluid velocities measured in meters/second at two

sergey [27]

Answer:

Attached is the complete question and solutions

7 0

3 years ago

Distance between points (7,6) (-3,-1)

GaryK [48]

Answer:

Step-by-step explanation:

(7,6) (-3,-1)

(x1,y1) (x2,y2)

$Distance=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}\\\\=\sqrt{(-3-7)^{2}+(-1-6)^{2}}\\\\=\sqrt{(-10)^{2}+(-7)^{2}}\\\\=\sqrt{100+49}=\sqrt{149}\\\\=12.21$

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3 years ago