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4 years ago

10

2x+3y=4This is not slope btw

2 answers:

Nataly_w [17]4 years ago

6 0

Okay, so we have 2x+3y=4. let's put this in slope intercept form.

We do that by subtracting 2x over and we now have 3y=-2x+4

Now we divide both sides by 3 and end up with y=(-2/3)x+4/3

Now let's plug in -4 for x.

y=(-2/3)(-4)+4/3 is y=8/3+4/3

8/3+4/3 =4

so y=4

Therefore, you coordinate pair is (-4,4) because when x is -4, y is 4. :D

viktelen [127]4 years ago

3 0

When x=-4:
2(-4)+3y=4
3y=4+8
3y=12
y=4
So the ordered pair is (-4,4), I think

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Is this table linear or exponential what us the slope and what is the equation ?

vampirchik [111]

Answer:

this table is exponential

Step-by-step explanation:

the way we can tell this is because we can find a common ratio of 4. we know this because linear tables have a common difference exponential tables have a common ratio. i found this answer by dividing 32,768 and 8,192

32,768/8,192 = 4

you can find a linear function by subtracting point 1 and point 2.

5 0

3 years ago

•<br> Find the HCF of 308 and 420.

oksano4ka [1.4K]

Answer:

28

Step-by-step explanation:

7 0

3 years ago

Determine the quadratic equation with roots

zvonat [6]

Answer:

$y=6x^2-5x+1$

Step-by-step explanation:

If the quadratic equation has a root at $\dfrac13$ then when $x=\dfrac13$ , $y=0$

$\implies x=\dfrac13$

$\implies 3x=1$

$\implies 3x-1=0$

If the quadratic equation has a root at $\dfrac12$ then when $x=\dfrac12$ , $y=0$

$\implies x=\dfrac12$

$\implies 2x=1$

$\implies 2x-1=0$

Therefore, $y=(3x-1)(2x-1)$

$\implies y=6x^2-5x+1$

4 0

2 years ago

Find ∠ABD if ∠ABC = 121° in the given figure.

siniylev [52]

Answer:

81°

Step-by-step explanation:

∠ABC= 121°

4x+21+3x-5=121
7x+16=121
7x= 105
x=105/7
x=15°

∠ABD= 4*15°+21°= 81°

7 0

4 years ago

Read 2 more answers

One afternoon, a student who is 5 feet 4 inches tall measured shadows to find the height of a telephone pole. The student's shad

Setler79 [48]

Answer:

19.9875 feet

Step-by-step explanation:

The formula is given as:

Shadow of the student/Height of the student = Shadow of the telephone pole/Height of the telephone pole.

1 inch = 0.0833 feet

Shadow of the student = 5ft

Height of the student = 5 feet 4 inches

4 inches to feet

= 4 × 0.0833 feet

= 0.33 feet

Hence: Height of the student = 5 + 0.33 = 5.33 feet

Shadow of the telephone pole = 18 feet 9 inches long

9 inches to feet

= 9 × 0.0833 feet

= 0.75 feet

Hence: Shadow of the telephone pole = 18 + 0.75 = 18.75 feet

Height of the telephone pole= x

Therefore:

5/5.33 = 18.75/x

Cross Multiply

5x = 5.33 × 18.75

x = 5.33 × 18.75/5

x = 19.9875 feet

The height of the telephone pole = 19.9875 feet

4 0

3 years ago