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quester [9]
2 years ago
15

X² + 6x = 7 Can u please tell me the answer I need it fast

Mathematics
2 answers:
balandron [24]2 years ago
4 0
The first x=1
the second x=-7
mrs_skeptik [129]2 years ago
4 0
The answer is in the photo

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A rectangle has a length of x+5 cm and a width of x cm. The perimeter of the rectangle is 50 cm. What is the value of x?
larisa86 [58]

Answer:x=10

Step-by-step explanation:

First let's create an equation:

2(x+5)+2x=50

2x+10+2x=50

4x+10=50

4x=40

x=10

4 0
3 years ago
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Expand.<br> Your answer should be a polynomial in standard form.<br> (7g+2)(5g+4)=
Ivahew [28]

Answer:

35g^2 +38g +8

Step-by-step explanation:

6 0
3 years ago
I NEED THIS ANSWERED FAST WITH WORK PLEASE
Pavel [41]
1 thousand a month would be my guess
3 0
3 years ago
A population of bears decreases exponentially.
timurjin [86]

Answer:

  0.8

Step-by-step explanation:

The annual factor will be found by dividing any year's population by the population of the year before. The points most easily read from the graph are the populations for years 0 and 1. Then the annual factor is ...

  factor = (year 1 population)/(year 0 population) = 320/400

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4 0
2 years ago
NEED HELP FAST!!!
mina [271]
Remember

we can do anything to an equation as long as we do it to both sides

try to isolate the variable

you have 2 types
x+b=c
x/b=c

fior the first type, minus b from both sides to get
x=c-b

for the second, multiply both sides by b to get rid of the fraction to get
x=cb

also remember that -x times -1=x



b.add 25 to both sides
-a=20
multiply -1
a=-20


c.
-t/8=-4
multiply both sides by 8
-t=-32
mutiply -1
t=32

d. -n/-5=-30
mulitply both sides by -5
-n=150
multiply both sides by -1
n=-150

e. multiply both sides by 12
-l=144
multiply b y-1
l=-144
4 0
3 years ago
Read 2 more answers
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