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Nadusha1986 [10]
3 years ago
6

2. If x = –1 and y = –3, then 5(x2 – 7 + y) =

Mathematics
1 answer:
ICE Princess25 [194]3 years ago
3 0

Answer:

C) -45

Step-by-step explanation:

5(x^2-7+y)=5((-1)^2-7+(-3))=5(1-7-3)=5(-6-3)=5(-9)=-45

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What is -5/8 + 3/4 ?
enot [183]

Answer:

0.125

Step-by-step explanation:

5 0
3 years ago
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I need helphdhhd;hhdhdjdjieieieiieieii
scZoUnD [109]
The answer is:  " 2x¹⁶ y " .
________________________________________
This is the "most simplified" version of the expression given.
________________________________________

Explanation:
________________________________________

Given:  "2xy (x⁵)³ " ;  Simplify .
_____________________________________

Note:  (x ⁵) ³ = x⁽ ⁵ * ³ ⁾  =  x ⁽¹⁵⁾ ;
______________________________________
Rewrite:  

2xy (x⁵)³ = 2xy x⁽¹⁵⁾ ; 

Rewrite:

2 * x * x⁽¹⁵⁾ * y ;

Note:   "x * x⁽¹⁵⁾ = x¹  *  x¹⁵  = x⁽¹ ⁺ ¹⁵⁾ = x¹⁶ ;

Rewrite:  " 2x¹⁶ y " .
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3 0
3 years ago
8. 2²=1<br>o=0<br>z=<br>+<br>The solutions are<br>and​
natka813 [3]

Step-by-step explanation:

the question is z²=1

taking square root on both sides

√z² = √1

the square root and the square cancel out each other

it gives

z=±1

that means either z=+1 or z=-1

so the solutions are 1 and -1

8 0
4 years ago
No clue how to do this
andreev551 [17]

B is your awnser! sorry if im wrong my calc shows its without a  - symbol

7 0
3 years ago
A line y=mx+b is translated using the vector . Write the equation of the translated line. What is the value of the y -intercept?
schepotkina [342]

The found value are-

  • Equation of the translated line: y = mx − am + 2b.
  • The value of the y -intercept: 2b − am.
<h3>What is general form of straight line?</h3>

A straight line's general equation is y = mx + c, in which m is the gradient and y = c is the value at which the line intersects the y-axis. This number c is known as the y-axis intercept.

Now, as per the given question;

The general equation of the line is given as;

y = mx + b

Each point (x,y) of the line is moved to the point (x+a, y+b) by the translation:

(x,y) ---> (x+a, y+b)

We find the original line's x and y intercepts:

Put y=0 in general equation of the line

⇒mx+b = 0

⇒x = −b/m

When, x=0

⇒y = m⋅0 + b

⇒ y = b

A, (0,b) and B( -b/m, 0)

We find the translational coordinates of the points A,B:

A(0,b) ---> A′ (0+a,b+b)

A(0,b) ---> A′ (a,2b)

And,

B( -b/m, 0) ----> B'( -b/m + a, 0 + b)

B( -b/m, 0) ----> B'( -b/m + a, b)

To find the equation of the line's translation, we use the points A and B ′:

m' = (2b - b)/[a  - (-b/m +a)]

m' = b/(b/m)

m'  =m

And,

y−yA' = m' (x−xA')

y−2b=m(x−a)

y=mx−am+2b

The translation of the line's x and y intercepts are:

Put x=0

⇒y = m⋅0−am+2b

⇒y = 2b−am

And, put y=0

⇒0 = mx−am+2b

⇒x = a - (2b/m)

Therefore, the equation of the translate line is found to be  y = mx − am + 2b.

And, the value of the y-intercept is found to be 2b−am.

To know more about the general form of straight line, here

brainly.com/question/4227212

#SPJ4

3 0
1 year ago
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