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kaheart [24]
2 years ago
5

Please help with this ASAP.

Mathematics
2 answers:
kolezko [41]2 years ago
8 0

Answer: Choice D

Explanation:

I'll use the point-slope form to get the following

y - y_1 = m(x - x_1)\\\\y - 1 = \frac{3}{4}(x - (-4))\\\\y - 1 = \frac{3}{4}(x + 4)\\\\y - 1 = \frac{3}{4}x + \frac{3}{4}*4\\\\y - 1 = \frac{3}{4}x + 3\\\\y = \frac{3}{4}x + 3 + 1\\\\y = \frac{3}{4}x + 4 \ \ \text{... matches with choice D}\\\\

You should find that plugging x = -4 into equation D will lead to y = 1 as a way to confirm the answer.

Ostrovityanka [42]2 years ago
7 0

Answer:

D

Step-by-step explanation:

m = 3/4

point: (-4, 1)

We can use the slope-intercept form. We know one point, so we can use its coordinates for x and y. We also know the slope, so we use the slope for m. Then we solve for b.

y = mx + b

Substitute m with the slope.

y = (3/4)x + b

Use the x-coordinate of the given point for x and the y-coordinate of the given point for y.

1 = (3/4)(-4) + b

Solve for b.

1 = -3 + b

b = 4

Now that we know the value of b, we can write the equation of the line.

y = mx + b; m = 3/4; b = 4

y = 3/4 x + 4

Answer: D

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It is 8 hours so you would do 22+42 and get 64. You would then divide 64 by 8 and get 8 degrees per hour.
8 0
3 years ago
How would I find all real solutions in x^4/3 -10^2/3 +21= 0
Oxana [17]

Answer:

Step-by-step explanation:

This equation looks complicated.We have to make it easier

let's say x^2/3 = t  and  x^4/3 = t^2

     

      t^2-10t+21=0   [ we can factorize this equation as a (t-3)(t-7) ]

     

      (t-3)(t-7)=0  [ that means , t can be 3 or 7 ]

But don't forget we have to find x not t so,

   t=x^2/3=3     ∛ x^2 = 3       x^2 = 9    x=3 or x= -3

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7 0
2 years ago
Select the solutions of the equation. <br> 2x2-3x-5=0
meriva

Using the Quadratic formula

your answer would be A and C

5 0
3 years ago
Read 2 more answers
HELPP ASAPPP
Softa [21]

Answer:

3/8

Step-by-step explanation:

3/4*1/2=3/8

3/8*1=3/8

*=multiply

3 0
3 years ago
How do you write the equation of a line (in slope intercept form) with three given points?​
Mrrafil [7]

With even just two points, you can find the equation of a line in slope-intercept form.

Slope-intercept form: y=mx+b where m is the slope and b is the y-intercept

<u>1) Solve for the slope (</u>m<u>)</u>

The equation to solve for the slope is m=\frac{y_2-y_1}{x_2-x_1} when the two points are (x_1,y_1) and (x_2,y_2). Plug the coordinates of these points into the equation and solve for m.

Then, plug m into y=mx+b.

<u>1) Solve for the y-intercept (</u>b<u>)</u>

Then, take any of the given points and plug it into y=mx+b along with the slope. Isolate b to get the y-intercept. Then, plug both m and b back into y=mx+b to get your final equation.

I hope this helps!

3 0
2 years ago
Read 2 more answers
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