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densk [106]
3 years ago
8

9(8d-5)+13=12d-2 find a solution for d

Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
4 0
I hope this helps you

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Help me w the answer
Olin [163]
I have no clue. im on that same question
3 0
3 years ago
I am having trouble with this problem. I need to find the lengths of this right triangle. How would you do this?
podryga [215]
You labeled the triangle wrong sides 'a' and 'b' are supposed to be the sides that make the right angle.  the other side is called the hypotenuse which is the longest side which you should have labeled 'c'

so Pythagorean theorem says
a^2+b^2=c^2
so
(2x+1)^2+(11x+5)^2=(12x+1)^2
distribute
(4x^2+4x+1)+(121x^2+110x+25)=(144x^2+24x+1)
add like terms
125x^2+114x+26=144x^2+24x+1
subtract 125x^2 from both sides
114x+26=19x^2+24x+1
subtract 114x from both sides
26=19x^2-90x+1
subtract 26 from both sides
0=19x^2-90-25
factor
(x-5)(19x+5)=0
therefor x-5=0 and/or 19x+5=0
so
x-5=0 add 5 to both sides
x=5
19x+5=0
subtract 5 from both sides
19x=-5
divide both sides by 19
x=-5/19
since side legnths can't be negative, we can cross this solution out

so x=5
subtitute
1+2x
1+2(5)
1+10=11
side a=11

11x+5
11(5)+5
55+5=60
side b=60

12x+1
12(5)+1
60+1=60
side c=61
add them all up
side a+b+c=11+60+61=132=total legnth
5 0
3 years ago
In Cherokee County, the fine for speeding is $17 for each mile per hour the driver is traveling over the posted speed limit. In
zlopas [31]

Answer:13 miles over the speed limit

Step-by-step explanation:

3 0
3 years ago
3x2(9x)0 = a0x a1 help me people
Temka [501]

X= {0, -3} is the answer hope this helps.

4 0
3 years ago
The restaurant is trying out a new menu. They asked 25 people if they liked the changes and 19 said they did. The restaurant had
Finger [1]
My best answer is B.) 173. 19/25 = ?/227. 25 times 9.08 = 227 so 9.08 times 19 = 172.52 1 which rounds up to 173
3 0
3 years ago
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