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jenyasd209 [6]
3 years ago
7

Manuela solved the equation below. 2(×+2)=×-4 What is the solution to Manuela’s equation?

Mathematics
2 answers:
Bumek [7]3 years ago
6 0
Equation solving

2 (x +2) = x - 4
2 x + 4 = x - 4
2 x - x = -4 - 4
 x = - 8

Answer =  x = -8

Lorico [155]3 years ago
4 0
2(x + 2) = x - 4

2x + 4 = x - 4

2x - x = -4 - 4

x = -8

Solution: x = -8
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If sine theta equals three over four, what are the values of cos θ and tan θ?
ratelena [41]

Answer:

In words, Cosine theta equals plus or minus square root of seven over 4,tangent theta equals plus or minus  three over root seven

Step-by-step explanation:

Given that sin ∅ =3/4 It means the ratio of the opposite side to the hypotenuse side is 3:4.

Using the Pythagoras theorem we can calculate the hypotenuse adjacent as follows.

a²+b²=c²

a²=c²-b²

a²=4²-3²

a²=16-9

a²=7

a=√7

Then Cos ∅= opposite/ adjacent

=√7/4

Then Tan ∅ = opposite/adjacent

=3/√7

In words, Cosine theta equals plus or minus square root of seven over 4,tangent theta equals plus or minus  three over root seven.

7 0
3 years ago
Substitute the known value of x​ into y=4x+20​. Then solve for y entering the equation in simplest form
scoray [572]

Answer:

y=24, when x=1.

Step-by-step explanation:

Given: y=4x+20

To find: Value of y, substituting the known value of x

We have,

y=4x+20 ...(i)

Putting x=1 in equation (i), we get

y=4(1)+20

\implies y=4+20

\implies y=24  

Hence, the value of y is 24, when the value of x is 1.

8 0
3 years ago
The Anderson family is preparing for a family reunion. They think they will need 22 juice boxes for every 6 children who attend.
AleksandrR [38]

If they need 22 boxes for every 6 kids the they would need 44 boxes for every 12 kid

6 0
3 years ago
12% of what number is 36
ryzh [129]
300, 36 divided by 0.12 (12%) is 300
4 0
3 years ago
Read 2 more answers
F (×)=-2×+1/3 for ×=-5
julia-pushkina [17]
The answer is 31/3 or 10⅓

3 0
3 years ago
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