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zloy xaker [14]
3 years ago
15

NEED HELP FAST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
Aleonysh [2.5K]3 years ago
6 0

The correct Answer is:

y = 0.4x^(2) + 3.4x + 4

storchak [24]3 years ago
5 0

Answer:

A.) y = 0.4x^(2) + 3.4x + 4

Step-by-step explanation:

x = -5

y = -3

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What is the domain of the square root function graphed below?
hodyreva [135]
Since x is never less than -4 but is equal to it at one point and is less than 0 in some points, the only possible answer and the correct answer is x ≥ -4.
So the domain to this graph is x ≥ -4.
3 0
3 years ago
Read 2 more answers
Solve using gaussian elimination and show ur work
jarptica [38.1K]

Add the last two equations to eliminate <em>x</em> :

(<em>x</em> - 2<em>y</em> - 3<em>z</em>) + (- <em>x</em> + <em>y</em> + 2<em>z</em>) = 0 + 3

- <em>y</em> - <em>z</em> = 3

<em>y</em> + <em>z</em> = -3

Subtract this from the first equation to eliminate <em>z</em>, then solve for <em>y</em> :

(2<em>y</em> + <em>z</em>) - (<em>y</em> + <em>z</em>) = -8 - (-3)

<em>y</em> = -5

Plug this into the first equation to solve for <em>z</em> :

2(-5) + <em>z</em> = -8

<em>z</em> = 2

Plug both of these into either the second or third equations to solve for <em>x</em> :

<em>x</em> - 2(-5) - 3(2) = 0

<em>x</em> = -4

7 0
3 years ago
Simplify all the equations.
hammer [34]

Answer:

C is 5x+13 D is 5x+12

Step-by-step explanation:

expand brackets

8 0
3 years ago
On a map 0.75 inch represents 80 miles. Two cities that are 1025 miles apart will be how far apart on a map round to nearest ten
icang [17]

The cities are 9.6 inches apart on map.

Step-by-step explanation:

Given,

80 miles in actual = 0.75 inch

1 mile = \frac{0.75}{80}\ inch

Distance between two cities = 1025 miles

1025 miles on map = 1025*\frac{0.75}{80}\\

1025\ miles\ on\ map=\frac{768.75}{80}\\\\1025\ miles\ on\ map=9.6\ inches

The cities are 9.6 inches apart on map.

Keywords: distance, multiplication

Learn more about distance at:

  • brainly.com/question/12613605
  • brainly.com/question/12700460

#LearnwithBrainly

4 0
3 years ago
1(3√2)2=2n this might be hard to do but I need help asap!! ty
borishaifa [10]

Answer:

3√2

Step-by-step explanation:

1(3√2)2=2n

Multiply 2 and 1 to give 2

2(3√2)=2n

Multiply 2 and 3√2=6√2

6√2=2n

Divide both sides by 2

n=6√2/2=3√2

6 0
3 years ago
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