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3 years ago

The two lines y = x + 9 and y = -x − 9 are:

Mathematics

1 answer:

Bond [772]3 years ago

8 0

Answer:

Neither parallel nor perpendicular

Step-by-step explanation:

To tell whether two lines are parallel or perpendicular, look at their slopes.

Parallel lines will have the same slope. This isn't the case since the first line has a slope of 1 and the second has a slope of -1.

Perpendicular line have slopes that are negative inverses of the other. This also isn't the case for these two lines. Although the slopes have opposite signs, the numbers aren't inverses.

The two lines are neither parallel nor perpendicular.

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D-10-2d+7=8+d-10-3d

TEA [102]

$Solution,solve\:for\:d,\:d-10-2d+7=8+d-10-3d\quad :\quad d=1$

$Steps:$

$d-10-2d+7=8+d-10-3d$

$\mathrm{Subtract\:}d-10\mathrm{\:from\:both\:sides},\\d-10-2d+7-\left(d-10\right)=8+d-10-3d-\left(d-10\right)$

$\mathrm{Refine},\\-2d+7=8-3d$

$\mathrm{Subtract\:}7\mathrm{\:from\:both\:sides},\\-2d+7-7=8-3d-7$

$\mathrm{Simplify},\\-2d=-3d+1$

$\mathrm{Add\:}3d\mathrm{\:to\:both\:sides},\\-2d+3d=-3d+1+3d$

$\mathrm{Simplify},\\d=1$

$\mathrm{The\:Correct\:Answer\:is\:d=1}$

$\mathrm{Hope\:This\:Helps!!!}$

$\mathrm{-Austint1414}$

4 0

4 years ago

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Troyanec [42]

Answer:

P': (5,3)

Q': (10,3)

R': (3,10)

Step-by-step explanation:

7 0

2 years ago

Guys please help i’m nearly on 23% and i need to get to 82%- giving brainlest

liberstina [14]

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6 0

3 years ago

Read 2 more answers

The electrical charge on a metal plate is given

Katarina [22]

Answer:

after 10 seconds the charge is 1.624

Step-by-step explanation:

I think your question missed key information, allow me to add in and hope it will fit the orginal one.

The electrical charge on a metal plate is given by the function below, where t is the time in seconds. What is the charge after 10 seconds?

C (t) = 12 $e^{\frac{-t}{5} }$

My answer:

Given the information:

C (t) = 12 $e^{\frac{-t}{5} }$

when t =10 we have:

C (10) = 12 $e^{\frac{-10}{5} }$

<=> C (10) = 12 $e^{-2}$

<=> C (10) = 12 $\frac{1}{e^{2} }$

<=> C (10) = 12 * 0.1353

<=> C (10) = 1.624

Hence, after 10 seconds the charge is 1.624

8 0

3 years ago

Subtract 5/12 - 3/4 A.) 1/4 B.) 1 1/6 C.) -1/3 D. 1/3

raketka [301]

Answer:

3/4 becomes 9/12

5-9 is -4 》-4/12 = -1/3 a.k.a C

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3 years ago

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