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3 years ago

Complete the table for the function y=x+3 x - y 0 - 2 - 4 - 6 -

Mathematics

1 answer:

Rus_ich [418]3 years ago

7 0

For each x value, add 3 to get y values.
0+3=3
2+3=5
4+3=7
6+3=9

Final answers, respectively: 3,5,7,9

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Use subsititution to solve each system of equations. [x=2y] [y = x -2]

emmasim [6.3K]

Answer:

x=4

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You can substitute the equations like y=1/2x and -x+y+2.

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3 years ago

A submarine dove at a rate of 18 feet per minute. What was the depth of the submarine after 15 minutes?

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So you’re basically multiplying 18 and 15. It’s going to be 270 ft

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3 years ago

Math question screen shot down below

ser-zykov [4K]

Answer:

Step-by-step explanation:

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3 years ago

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Solve the equation to find where the treste ground levelEnter your answers from least to greatest and round to the nearest The m

DaniilM [7]

Answer:

The trestle meets ground level at 0.875 units and 9.125 units

Step-by-step explanation:

Poorly formatted question.

The given equation is:

$y = -x^2 + 10x - 8$

Required

The point where the trestle gets to the ground level

To do this, we set $y = 0$

So, we have:

$-x^2 + 10x - 8 = 0$

Multiply through by -1

$x^2 -10x + 8 = 0$

Solve using quadratic formula:

$x= \frac{-b \± \sqrt{b^2 - 4ac}}{2a}$

Where:

$a = 1; b =-10; c = 8$

So, we have:

$x= \frac{-(-10) \± \sqrt{(-10)^2 - 4*1*8}}{2*1}$

$x= \frac{-(-10) \± \sqrt{68}}{2*1}$

$x= \frac{-(-10) \± 8.25}{2}$

$x= \frac{10 \± 8.25}{2}$

Solve the fraction

$x= 5 \± 4.125$

Split

$x= 5 + 4.125\ or\ x= 5 - 4.125$

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7 0

3 years ago

PLSSS HELP ME!!!!!!!

DanielleElmas [232]

Answer:

y=15

Step-by-step explanation:

Because of the exterior angle theorem angle A plus angle b or equal to 146.

so you set 5y+3+4y+8=146 and solve

5y+3+4y+8=146

9y+11=146

9y=135

y=15

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3 years ago

Read 2 more answers