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HACTEHA [7]
3 years ago
13

Without using Desmos what is the complete factorization of 5x^2-20? Please show work , please help

Mathematics
1 answer:
Simora [160]3 years ago
3 0

Answer:

5(x+2)(x-2)

Step-by-step explanation:

Find the greatest common factor (GCF) of the 2 terms:

GCF is 5.

Factor out the GCF:

5x^2-20\\5(\frac{5x^2}{5} -\frac{20}{5} )\\5(x^2-4)

Rewrite as a difference of squares (a^2-b^2=(a+b)(a-b)):

5(x^2-2^2)\\5(x+2)(x-2)

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Answer:

64.4

Step-by-step explanation:

In one of the trig formulas, it states    sin <a/A = sin<b/B = sin<c/C

So we have in this case:

sin(70)/12 = sin x/14           Note: x is just a variable for the angle <ABC

14(sin70)/12 = sin x

sin^-1(14(sin70)/12) = x

x=64.4

Your welcome, and comment if you have any questions! :D

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2 years ago
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3 years ago
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anastassius [24]
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5 0
3 years ago
Concert tickets cost $15 for general admission, but only $9 with a student ID. Ticket sales total $450. Write and graph an equat
aliina [53]

The equation that models the situation is 15x + 9y = 450

The x-intercept is (30, 0) and the y-intercept is (0, 50)

Given the following parameters:

  • Cost of concert tickets for general admission= $15
  • Cost of a ticket for those with student ID = $9

Given that the total sales is $450, the equation that models this situation will be expressed as:

  • 15x + 9y = 450

where:

x is the those that admitted generally

y are those with student ID

<u />

<u>Get the x-intercept.</u>

This is a point where the y-axis is zero

15x + 9y = 450

15x + 9(0) = 450

15x = 450

x = 450/15

x = 30

Thee x-intercept is (30, 0)

<u>Get the y-intercept.</u>

This is a point where the x-axis is zero

15(0) + 9y = 450

0 + 9y = 450

9y = 450

y = 450/9

x = 50

The y-intercept is (0, 50)

Learn more on intercepts here: brainly.com/question/24212383

7 0
2 years ago
This is taking forever to find out
frosja888 [35]

Answer:

What is

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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