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3 years ago

What does the line 2x-3y=7 look like

Mathematics

2 answers:

Dovator [93]3 years ago

8 0

I'm not 100% sure but what I remember it's this

Alborosie3 years ago

8 0

Answer with Step-by-step explanation:

We are given a equation:

2x-3y=7

We have to determine how its graph looks like.

now we start with taking y=0

then 2x=7

i.e. x=3.5

now take x=0

then -3y=7

i.e. y=-2.33

i.e. our graph passes through (3.5,0) and (0.-2.33)

Now, we plot these two points on the graph and make a line segment joining them.

That is the resulting graph.

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15x+8=6x+2 Find X please I beg you I have to feed my kids

Rzqust [24]

Answer:

$15x+8=6x+2\\9x+8=2\\9x=-6\\x=-6/9 or -2/3\\Hope this helps plz hit the crown :D$

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3 years ago

Read 2 more answers

Find side AB COM 350

anzhelika [568]

Answer:

AB = 8.402

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask questions in the comments below ;)

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5 0

4 years ago

PLEAZZZZZZZZZZ HELP ASAP

stich3 [128]

QUESTION 1

GIVEN:

$long \: base = 3 \times (short \: base)$

$height = (short \: base) - 2$

$area = 30 {in}^{2}$

IMPORTANT EQUATIONS

$trapezoid \: area = \frac{sum \: of \: bases}{2} \times height$

SOLVE:

$30 = \frac{short + long}{2} (short - 2)$
$30 = \frac{(short + 3short)}{2} \times (short - 2)$

$30 = \frac{4short}{2} (short - 2)$

$30 = 2{(short)}^{2} - 4(short)$

${short}^{2} - 2(short) - 15 = 0$

factor:

$(short - 5)(short + 3) = 0$

$short = 3 \: and \: - 5$
Negative five is not a reasonable answer, so we focus on the positive three and say that is the length of the short base.

so, the answers:

$short \: base = 3 \: in$

$long \: base = 3 \times 3 = 9 \: in$

$height = 3 - 2 = 1 \: in$

QUESTION 2

GIVEN
convert 3ft to inches.

$l = 32 + w$

$area = lw = 130 {in}^{2}$
or

$w = \frac{130}{l}$

substitute

$l = 32 + \frac{130}{l}$

solve for l:

${l}^{2} - 32 l- 130 = 0$
QUESTION 3

$x(x + 2) = 80$

solve for X

${x}^{2} + 2x - 80 = 0$
$(x - 10)(x + 8) = 0$

$x = 10 \: and \: - 8$

take the positive value since it's the only one that makes sense in this context.

so the two values are:

$10 \: and \: 8$

8 0

3 years ago

The volume of a piece of wood is 620cm3. Its density is 0.85g/cm3. Work out its mass

asambeis [7]

Answer:

527 grams

Step-by-step explanation:

Use the density formula, d = m/v

Plug in the density and volume, then solve for m (mass):

d = m/v

0.85 = m/620

527 = m

So, the mass is 527 grams

3 0

3 years ago

Find and interpret the mean absolute deviation of the data.

aalyn [17]

Answer:

= average value of the data set

n = number of data values

x_i = data values in the set

Step-by-step explanation:

3 0

3 years ago