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4 years ago

How do you solve: Y=-x-3y

Mathematics

1 answer:

arlik [135]4 years ago

7 0

Add the 3y to the y ... 4y . You cannot mix the x and the y so it is 4y=-x

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Find the slope of the line passing through the points (-6, 6) and (4. – 7).

postnew [5]

Answer:

$\displaystyle -\frac{13}{10}$

Step-by-step explanation:

To solve this problem, first you have to use the slope formula of $\displaystyle \frac{y_2-y_1}{x_2-x_1}$ .

y2= (-7)

y1=6

x2=4

x1(-6)

Solve.

$\displaystyle \frac{(-7)-6}{4-(-6)}=\frac{-13}{10}=\boxed{-\frac{13}{10}}$

Therefore, the correct answer is -13/10.

6 0

4 years ago

Read 2 more answers

PLEASE HELP I BEG OF YOU!???

k0ka [10]

Answer:

24.9

first to find the price of the DVD's you multiply 5 x 4.40 which is 22, then you add the 2.90 10 get 24.90.

btw plz put me as brainliest.

7 0

3 years ago

Which expression is not equivalent to the other expressions?

Ket [755]

That would be D

the first 3 = -12x + 24

bur D = -12x - 24

4 0

4 years ago

Read 2 more answers

How to subtract hexadecimal number when one is bigger than the other?

Inessa05 [86]

Hello,

In order to be simple: let's code hexadecimal numbers on 4 digits.

Example: 500-200=300 (in décimal)

$500_{10}=01F4_{16}\\\\
200_{10}=00C8_{16}\\\\
For\ subtract\ 00C8\ we\ calculate\ 15th\ complement\\\\
C_{15}(00C8)=FF37\\\\

16th\ complement= FF37+0001=FF38\\\\

Then\ we\ add\\\\

01F4+FF38=(1)012C\ on\4\ digits:\ 012C\\

012C_{16}=300_{16}

$

7 0

3 years ago

3-14 plzzz except #13 20 points!

Marianna [84]

#3: 15

#4: 13.2

#5: 5.44 (curious as to how you guessed 7)

#6: 7

#7: 7.3

#8: 15

#9: You'd round 0.9 to 1 and 3.78 to 4. 4/1 = 4

#10: Round 2.5 to 3. 36/3 = 12

#11: If they want you to round 0.25 down to 0, then 7/0 is undefined.

#12: 9.5 rounds to 10 142.5 rounds to 143. 143/10 = 14.3

#14: 24.8 cm divided by 175 = approximately 0.1417 cm per year. Round that up to approximately 0.14 per year.

4 0

3 years ago