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2 years ago

Must m in the equation y=mx+b always be a positive number?

2 answers:

4 0

If the slope of the number is positive (the graph goes upward from left to right), then m will be positive, but if the slope is negative (the graph goes downward from left to right), then m is negative. So, no. M does not have to be a positive number, it may also be negative.

matrenka [14]2 years ago

4 0

Answer:

Step-by-step explanation:

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21 is 84 percent of what number

marysya [2.9K]

Let the required no. be x then according to question
(84/100)*x = 21
x = 21*(100/84)
x = 2100/84
x = 25

hence the required no. is 25

hope it helped

5 0

3 years ago

HELP ILL GIVE BRAINLIEST PLS QUICK

saveliy_v [14]

Answer:

Y =2X +2

y = 2(13) + 3

y = 29 after 13 months

Step-by-step explanation:

x1 y1 x2 y2

0 2 2 6

(Y2-Y1) (6)-(2)= 4 ΔY 4

(X2-X1) (2)-(0)= 2 ΔX 2

slope= 2

B= 2

Y =2X +2

3 0

2 years ago

Please answer ASAP!!!!!!!!!!!!!!!!!!

Papessa [141]

Which question? There are 2 different questions here .

6 0

2 years ago

Sketch the curve represented by the parametric equations (indicate the orientation of the curve), and write the corresponding re

raketka [301]

Answer:

(See explanation below for further details).

Step-by-step explanation:

Let be a parametric curve represented by $x = 3\cdot t - 5$ and $y = 5\cdot t + 1$ , where $t$ is the parametric variable.

The curve is represented graphically with the help of a graphing tool, whose outcome is included in the image attached below. The corresponding rectangular equation is found by eliminating t of each equation.

$t = \frac{x+5}{3}$ and $t = \frac{y-1}{5}$

$\frac{x+5}{3} = \frac{y-1}{5}$

$5\cdot (x+5) = 3\cdot (y-1)$

$5\cdot x +25 = 3\cdot y - 3$

$5\cdot x -3\cdot y = -28$

The parametric equations represents a linear function (first-order polynomial).

8 0

2 years ago

The exact vaule of cos(247.5 degrees)

Leni [432]

$cos(247.5 deg)=cos( \frac{495deg}{2})
 = - \sqrt{ \frac{1+cos(495deg)}{2} } 
 = -\sqrt{ \frac{1- \frac{ \sqrt{2} }{2} }{2} } 
 = \frac{ \sqrt{2- \sqrt{2} } }{2}$

8 0

3 years ago