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nataly862011 [7]
2 years ago
6

Help me please answer this ASAP.

Mathematics
1 answer:
vredina [299]2 years ago
7 0
What are the choices
You might be interested in
Please help and no links either
pantera1 [17]

Answer:

D

Step-by-step explanation:

It says less than do I think it should be d

Sorry if I am wrong

3 0
2 years ago
Read 2 more answers
gia is thinking of a number which she calls n. She adds 4 to the number and then doubles the sum. Write an expression to represe
Korvikt [17]
It should be 2(n+4)
3 0
2 years ago
Read 2 more answers
Squareroot(y-1) + 3 = y
jek_recluse [69]
Note:xy means x times y and x(y) means the same thing

so
first we get rid of square root then
make the equation equal to zero becaues if
xy=0 then x or/and y=0



squareroot(y-1)+3=y

isolate the squareroot
subtrac 3 from boht sides

squareroot(y-1)=y-3

square both sides (since they are equal, you should be able to square both sides and still make it true)

(squareroot(y-1))^2=(y-3)^2
(y-1)=(y-3)(y-3)
y-1=y^2-6y+9
subtrac y from both sides
-1=y^2-7y+9
add 1 to both sides
0=y^2-7y+10
find what two number multiply to make 10 and add to get -7
the answer is -2 and -5

0=(y-5)(y-2)
therfore
y-5=0
and/or
y-2=0

therefor
y=5 or/and 2 might work
let's try out 2
square root(2-1)+3=2
square root(1)+3=2
1+3=2
false
so 2 doesn't work



let's try 5
squareroot(5-1)+3=5
squareroot(4)+3=5
2+3=5
5=5
true

y=5
7 0
3 years ago
Can you please send help
love history [14]

Answer:

yes ill send the fbi

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Evaluate the expression 3.14(a2 + ab) when a = 3 and b = 4. (Input decimals only, such as 12.71, as the answer.)
soldier1979 [14.2K]
A= 3
b= 4

=3.14(a^2 + ab)
substitute the given a & b values in expression

=3.14((3)^2 + (3*4))
multiply inside parentheses

=3.14(9 + 12)
add inside parentheses

=3.14(21)
multiply

=65.94


ANSWER: 65.94

Hope this helps! :)
8 0
3 years ago
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