14x2=28
28 divided by 3 is 9.3
the answer is 9.3
Answer:
=19
Step-by-step explanation:
=6÷3+17
=2+17
=19
Answer:
x=1
Step-by-step explanation:
3^ (3x+1) = 81
Rewrite 81 as a power of 3
3^4
3^ (3x+1) = 3^4
Since the bases are the same, the powers are the same
3x+1 =4
Subtract 1 from each side
3x+1-1 =4-1
3x=3
Divide by 3
3x/3 = 3/3
x =1
Exponentail thingies
easy, look at all them them, see that they have 5 in common?
rremember how esay it was to factor
ax^2+bx+c=0
now we have
5^(2x)-6(5^x)+5=0
remember that 5^(2x)=(5^2)^x or (5^x)^2
in other words, we can rewrite it as
1(5^x)^2-6(5^x)+5=0
if yo want, replace 5^x with a and factor
1a^2-6a+5=0
(a-1)(a-5)=0
a=5^x
(5^x-1)(5^x-5)=0
set each to zero
5^x-1=0
5^x=1
take the log₅ of both sides
x=log₅1
5^x-4=0
5^x=4
take the log₅ of both sides
x=log₅4
x=log₅1 and/or log₅4
second quesiton
same thing
1(2^x)-10(2^x)+16=0
factor
(2^x-8)(2^x-2)=0
set each to zero
2^x-8=9
2^x=8
x=3
2^x-2=0
2^x=2
x=1
x=3 or 1
first one
x=log₅1 and/or log₅4
second one
x=1 and/or 3
Quadrilaterals are shapes with 4 sides. The correct inequality expression is x < 11
<h3>What are quadrilaterals?</h3>
Quadrilaterals are shapes with 4 sides. The given figure is a quadrilateral. The side opposite to 68 degrees is greater than the side opposite 32 degrees to have the equation;
11x - 33 < 77
Add 33 to both sides
11x - 33 + 33 < 77 + 33
11x <110
x < 110/10
x< 11
Hence the correct inequality expression is x < 11
Learn more on inequality here: brainly.com/question/24372553
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