Can somebody explain to me how I should do this ?

Mathematics

2 answers:

Sholpan [36]2 years ago

8 0

Answer:

a. m = 3/2

b. m = -1/4

Step-by-step explanation:

Advocard [28]2 years ago

7 0

Answer:

In the equation of a straight line (when the equation is written as "y = mx + b"), the slope is the number "m" that is multiplied on the x, and "b" is the y-intercept (that is, the point where the line crosses the vertical y-axis). This useful form of the line equation is sensibly named the "slope-intercept form"

Step-by-step explanation:

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Leno4ka [110]

Answer:

Step-by-step explanation:

The temperature must not be greater than 15 which means 15 is the maximum. It's not saying it can't reach 15, it's saying it can't go past it.

So it wouldn't be t < 15. It would be t is less than or equal to 15

4 0

2 years ago

Read 2 more answers

The measure of ∠CBD is 45% of the measure of ∠ABC. Find the value of x.

Flura [38]

<h2>Explanation:</h2><h2></h2>

Hello! Remember you have to write complete questions in order to get good and exact answers. Here we have no expressions for ∠CBD and ∠ABC, so I'll assume:

$\angle CBD=15x-24 \\ \\ \angle ABC=20x+40$

We know that the measure of ∠CBD is 45% of the measure of ∠ABC, then:

$\angle CBD = 45\%(\angle ABC) \\ \\ \\ Or: \\ \\ \angle CBD = 0.45(\angle ABC) \\ \\ \\ Substituting \ expressions: \\ \\ 15x-24=0.45(20x+40) \\ \\ \\ Solving \ for \ x: \\ \\ 15x-24=9x+18 \\ \\ 15x-9x=24+18 \\ \\ 6x=42 \\ \\ x=\frac{42}{6} \\ \\ \boxed{x=7}$