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klemol [59]
2 years ago
9

PLEASE HELP Find the value of y

Mathematics
2 answers:
cupoosta [38]2 years ago
8 0

Answer:

C. y = 4

Step-by-step explanation:

\sin \: 30 \degree =  \frac{y}{8}  \\  \\  \frac{1}{2}  =  \frac{y}{8}  \\  \\ y =  \frac{8}{2}  \\  \\ y = 4

Archy [21]2 years ago
5 0

Answer:

Letter D! That's the answer

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How many solutions exist for the given equation?
zmey [24]
<h3> Answer </h3>

x = 2

<h3>Step by step</h3>

1/2(x + 12) = 4x - 1

1/2x + 12/2 = 4x - 1

1/2x + 6 = 4x - 1

1/2x - 4x = -1 - 6

1/2x - 8/2x = -7

-7/2x = -7

x = -14/-7

x = 2

8 0
2 years ago
Hello please help i’ll give brainliest
crimeas [40]

Answer:

the 2nd one

Step-by-step explanation:

5 0
2 years ago
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Find the vertex of this parabola:<br> y = -x2 + 6x - 8
skelet666 [1.2K]

Answer:

4x-8

Step-by-step explanation:

y=-x2+6x-8

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4 0
3 years ago
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
Trina's teacher asked her to explain the division problem 48 ÷ 12. Which choice gives the correct explanation?
miskamm [114]

B.) 48 has to be broken up into 12 to get 4
6 0
2 years ago
Read 2 more answers
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