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2 years ago

Given the point (5, 6) and the slope of 5, find y when x = 21.

2 answers:

6 0

Y = mx + b....(5,6)
slope(m) = 5
now we sub
6 = 5(5) + b
6 = 25 + b
6 - 25 = b
- 19 = b

so ur equation is : y = 5x - 19...now we sub in 21 for x
y = 5(21) - 19
y = 105 - 19
y = 86

so when x = 21, y = 86

Maurinko [17]2 years ago

3 0

Determine the equation of the line using the given slope and point by,
y - y1 = m(x - x1)
Substitute the values,
y - 6 = 5(x - 5)
Simplifying the equation,
y = 5x - 19
Substituting the given value of x given,
y = 5(21) - 19 = 86
Therefore, the answer is 86.

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HELP PLZ <br> i need help with this math side i just need b,c,d a =4x+2y=16

tino4ka555 [31]

Answer:

Please check the explanatio.

Step-by-step explanation:

Solving Part b)

We know that the slope-intercept form of the equation line is

$y=mx+b$

where m is the slope and b is the y-intercept

Given the equation

$4x+2y=16$

Re-writing the equation in the slope-intercept form

$4x+2y=16$

$y=-2x+8$

Here, m=-2 and b=8

Thus, the equation in the slope-intercept form will be:

$y=-2x+8$

Solving Part c)

As you sold two pounds of cheddar cheese.

i.e. y=2

substituting y=2 in the slope-intercept form of the line equation

$y=-2x+8$

$2=-2x+8$

Subtract 8 from both sides

$-2x+8-8=2-8$

$-2x=-6$

Divide both sides by -2

$\frac{-2x}{-2}=\frac{-6}{-2}$

$x=3$

You sold 3 pounds of swiss cheese.

Solving Part d)

$y=-2x+8$

putting x=2.5 in the equation

$y=-2x+8$

$2=-2\left(2.5\right)+8$

$2=3$

The sides are not equal

<em>FALSE</em>

Thus, x=2.5 does not make any sense in the context of the problem.

6 0

2 years ago

Solve for x and y pls

Paraphin [41]

X is a 90 degree angle so x equals half of 90 which is 45
X= 45
Since x is 45 the other angle on the other side is 45
Every triangle equals 180 so you take 45+45 to get 90 and subtract that from 180 and get 90
Y= 90
hope this helped ask questions

8 0

3 years ago

una escalera esta recargada en un muro de 8 metros de altura y forma un angulo agudo de 55 grados ¿cual es la longitud de la esc

Illusion [34]

Answer:

9.77 metros

Step-by-step explanation:

Ay que usar sine, mira el problema en la photo