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natulia [17]
3 years ago
6

Is this true or no plz help

Mathematics
1 answer:
il63 [147K]3 years ago
7 0
Im pretty sure its No.
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Which of the following expressions is equivalent to the expression 2(7x+3)
alexandr1967 [171]
First you got to multiply 2x7=14x then multiply again 2x3=6 so the answer to the equation will be 2(7x+3)=(14x+6)
7 0
3 years ago
What value, written as a decimal, should Lena use as the common ratio?
inn [45]

Answer:

an=1*2.5^(n-1)

=2.5^(n-1)

Step-by-step explanation:

Complete question below:

What value, written as a decimal, should Lena use as the common ratio? Lena is asked to write an explicit formula for the graphed geometric sequence. On a coordinate plane, 3 points are plotted. The points are (1, 1), (2, 2.5), (3, 6.25).

Solution

Point (1, 1), (2, 2.5), (3, 6.25).

a=1

ar=2.5

ar^2=6.25

From ar and ar^2

r=6.25/2.5

=2.5

r=2.5

an=ar^(n-1)

Therefore, the explicit formula is

an=1*2.5^(n-1)

=2.5^(n-1)

7 0
2 years ago
How many yards are in 1 mile 60 feet
AfilCa [17]
1760 yards in 1 mile
4 0
3 years ago
Read 2 more answers
During a sale at the mal, all items were marked down 40% off of the original price. Lily purchased a purse that was originall $2
NNADVOKAT [17]

Answer:

$132

Step-by-step explanation:

40% off means it is actually 60% of the regular price.

Thus, you will multiply the original (220) by .6 (this means 60 percent)

and you will get 220*.6=132

3 0
3 years ago
Read 2 more answers
A) -x + 9 = 56 <br> Solve and verify
leonid [27]

Answer:

-47

Step-by-step explanation:

-x + 9 = 56\\-x = 56-9\\-x = 47\\x = -47 \\\\Verification:\\LHS= - x+9 = -(-47) +9 = 47+9 = 56 = RHS

3 0
3 years ago
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