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2 years ago

Find the value of the variable x (2x+12) and 8x-18

Mathematics

2 answers:

Marysya12 [62]2 years ago

7 0

Answer:

Step-by-step explanation:

Just mutiply x on both sides which gives you 2x^2 + 12x then you mutiply 2x^2 then subtract that number on both sides and it gives you x = something then you distribute it on 8(something) - 18 you subtract

maxonik [38]2 years ago

3 0

Answer: Below

Step-by-step explanation:

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Find the slope for (3,4) and (3,-4)

saveliy_v [14]

Answer:

undefined

The problem:

Find the slope for the line going through (3,4) and (3,-4).

Step-by-step explanation:

Line up points vertically and subtract.

Then put 2nd difference over 1st.

( 3 , 4)

-(3 , -4)

------------

0 8

So the slope would have been 8/0 but this is undefined.

So the slope is undefined.

Also notice the x's are the same and the y's are difference so this is a vertical line. There is only rise in a vertical line and no run. Recall, slope is rise/run. You cannot divide by 0 so this is why we say the slope is undefined when the x's are always the same no matter the y.

7 0

3 years ago

Wserdtcfvygbuhnjkml,;kmojnihbugvyf

Sveta_85 [38]

Answer:

taco

Step-by-step explanation:

5 0

3 years ago

A group of 625 students has a mean age of 15.8 years with a standard deviation of 0.6 years. The ages are normally distributed.

Tom [10]

16.2-15.8/0.6=0.6667. Use normalcdf() to find the percentage from -999 to 0.6777 which is 0.7476*625=467

7 0

3 years ago

Find the slope of the line below. Enter your answer as a fraction of

Levart [38]

Answer:

$\boxed{\sf{\dfrac{3}{10}}}$

Step-by-step explanation:

Use the slope formula.

<h3 /><h3>What is a slope?</h3>

Slope is a surface with one end higher than the other and with no steps. It proceeds at an angle. The path sloped down to the beach.

So, the property possessed by a line or surface that departs from the horizontal.

<u>Slope formula:</u>

$\longrightarrow \sf{\dfrac{y_2-y_1}{x_2-x_1} }$

(-6,-2) (4,1)

y₂=1
y₁=(-2)
x₂=4

x₁=(-6)

<u>Rewrite the problem down.</u>

$\sf{\dfrac{1-\left(-2\right)}{4-\left(-6\right)}}$

<u>Solve.</u>

1-(-2)=1+2

1+2=3

4-(-6)=4+6

4+6=10

$\boxed{\sf{\frac{3}{10} }}$

Therefore, the slope is 3/10, which is our answer.

To learn more about slope:

brainly.com/question/24241142

brainly.com/question/66944

#SPJ1

4 0

2 years ago

A line, Z, has equation y = 5x + 3.<br> Write down an equation of a line parallel to line Z.

leva [86]

$\huge\underline\color{purple}{Answer \: ☘}$

$y = 5x$

Step-by-step explanation:

$as \: the \: line \: is \: parallel \: to \: line \: z \\ hence , \\ set \: the \: equation \: of \: the \: line \: as \\ y = kx + b \\ \\given... \\ y = 5x + 3 \\ comparing \: the \: equations \: we \: get \: \\ k = 5 \\ \\ hence \: the \: equation \: can \: be \: y = 5x$

hope helpful~

7 0

2 years ago

Read 2 more answers