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2 years ago

10

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

2 answers:

Sindrei [870]2 years ago

7 0

Not at all.

'm' turns out to be the slope of the graph of the equation.

If the graph of the equation slopes upward as it goes
from left to right, then 'm' is positive.

If the graph of the equation slopes downward as it goes
from left to right, then 'm' is negative.

Nookie1986 [14]2 years ago

4 0

'm' is the slope.

The answer is no. There could be a negative number, which means that the slope would be decreasing, or as known as a negative slope (negative rate of change). <span />

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Can someone help me with all this?? i really dont get it

olga nikolaevna [1]

Answer:

A=78

B=102

C=78

Step-by-step explanation:

A= a and 102 are on a straight line so they add up to 180. 180-102=78. The same goes for C

B= the vertical angle for 102, or the same thing with a and c, just flipped around

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2 years ago

If it is April, then there are 30 days in the month.

dimaraw [331]

Answer:

C.

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2 years ago

In parallelogram ABCD, AD = 12 in, m∠C = 46º, m∠DBA = 72º. Find the area of ABCD

dmitriy555 [2]

Answer:

The area of parallelogram ABCD is $78.42 \mathrm{in}^{2}$

Explanation:

Given:

AD = 12 in

$m \angle C=46^{\circ}$

$m \angle D B A=72^{\circ}$

To Find:

The area of parallelogram ABCD=?

Solution:

When we construct the parallelogram with the given data, we get a parallelogram formed by 12 cm as one side and an angle with 46 degrees.

The area of the parallelogram can be calculated by $a b * \sin (a n g l e)$

Substituting the value of a=12 we have

$\text { Area of parallelogram }=12 * \text { bsin } 46$

<u>To find the value of b, </u>

We know that area of a triangle can be expressed as,

$\text { Area of triangle }=(A b / 2) \sin (\text {angle})$

So,

$(12 * B D / 2) * \sin 46=(A B * B D / 2) * \sin 72$

Cancelling BD and 2 on both sides we get,

$12 * \sin 46=A B * \sin 72$

$A B=12 * \frac{\sin 46}{\sin 72}$

Therefore,

$b=\frac{12 \sin 46}{\sin 72}$

Substituting the value of b,

$=12 *\left(\frac{12 \sin 46}{\sin 72}\right) * \sin 46$

=78.42

So the area of the parallelogram is $78.42 \mathrm{in}^{2}$

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3 years ago

Read 2 more answers

Help me please, brainliested :)

JulijaS [17]

Answer:

y=-1/3x-3

Step-by-step explanation:

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2 years ago

How many centimeters are there in 1 yard if there are 2.54 centimeters per inch?

mars1129 [50]

There are 36 inches in a yard so 36*2.54 = 91.44 centimeters

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2 years ago