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Darina [25.2K]
3 years ago
9

Write the algebraic expression. twice the sum of x and 4

Mathematics
1 answer:
Cloud [144]3 years ago
5 0
Answer: Y= X+4•2

Word form: Y equals X plus 4 times 2
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What is the<br> product of<br> 41, 43,47<br> ,
dimaraw [331]

Answer:

88

Step-by-step explanation:

give me brainliest plz

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If cos x = sin(20 + x) and 0° &lt; x &lt; 90°, the value of xis
natka813 [3]

Answer:

x= 35

Step-by-step explanation:

Cos x = Sin( 20+x)

 Sin ( 90 – x) = Sin(20+x)

 90 – x = 20+x  

 2x = 70  

 x = 35  

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3 years ago
Given the system of equations, what is the solution? x 3y = 5 x - 3y = -1 {(-4, -3)} {(2, 1)} {(-2, 3)}
PSYCHO15rus [73]

The solution of the equation is (2, 1).

x=2 and y=1

<h3>What do you meant by equation?</h3>

A mathematical assertion that two expressions are equal is known as equating. It can be expressed as either an identity, in which case the variables can take on any value, or a conditional equation, in which case the variables can only have specific values (roots).

<h3>According to the given information:</h3>

We have two options for finding the answer. The first is to solve the equations via term elimination:

x + 3y = 5  ..............1

x - 3y = -1  ...............2

2x = 4 ..............3

With the equation, we can determine x. (3)

x = 4/2

x = 2

To determine y, we may now swap out x=2 in equation (1).

x + 3y = 5

2 + 3y = 5

3y = 3

y = 1

We've discovered x and y now.

x=2

y=1

The second method involves removing x from equation 1.

x + 3y = 5

x = 5 - 3y

In the equation right now, we may substitute x = 5 - 3y.........  (2)

x - 3y = -1

(5 - 3y) - 3y = -1

5 - 6y = -1

6y = -6

y = 1

Currently, we can change y=1 in equations (1), (2), or (4) to find x.

We'll apply the equation (1)

x + 3y = 5

x + 3(1) = 5

x + 3 = 5

x = 2

The two variants x = 2 and y = 1 have allowed us to confirm this.

To know more liner equation visit:

brainly.com/question/2995422

#SPJ4

7 0
2 years ago
Is 2/3 equivalent to 4/6
Alina [70]
Im pretty sure it is cause multiply 2/3 times 2 is 4/6
5 0
4 years ago
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