3 years ago

I need help with those 2

Mathematics

1 answer:

galina1969 [7]3 years ago

7 0

Question 7 is a, multiply ever number by 5
question 8 is also a, multiply every number by -2

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$7.825 per hour × $32.125 hours round answer to the thousandth of a dollar???

xenn [34]

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4 years ago

Garrrrryy <br><br> no need to show work <br> two questions <br> thankks

irakobra [83]

1. $x^2-x-72=0$
$\Delta=(-1)^2-4*1*(-72)=1+288=289$
$\sqrt{\Delta}=17$
$x_1=\frac{1-17}{2}=-8$
$x_2=\frac{1+17}{2}=9$

2. $f(x)=x^2+12x+20$
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4 years ago

Calculate the value of x if 2x/3=8/5

Cloud [144]

Answer:

12/5 or 2⅖

Step-by-step explanation:

2x/3 = 8/5

2x = 3 × 8/5

2x = 24/5

x = 24/5 ÷ 2

x = 12/5

Or 2⅖

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3 years ago

What is the slope of the line through [-1,2] and [2,-3]

Gennadij [26K]

Answer:

-3/5

Step-by-step explanation:

to figure that out you have to do y^2 - y^1/ x^2 - x^1

2-(-1)/ -3 - 2

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3 years ago

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jolli1 [7]

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