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3 years ago

SOMEONE PLEASE HELP!!

Mathematics

2 answers:

lesya692 [45]3 years ago

8 0

First you need the size of an angle QPR = B = 180° - 123°
Lenght of QP = 10cm
QR = x
QP = r
x² = r² + r² - 2r² × cosB

Rina8888 [55]3 years ago

8 0

Answer:19.9

Step-by-step explanation:

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3 years ago

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3 years ago

The linear equation of the initial (red ) incline would be y = __x +__

RideAnS [48]

Answer:

$y=\underline {1.5}x+\underline 0$

Step-by-step explanation:

From the graph,

The initial red incline is a straight line passing through the origin.

So, a straight line passing through the origin is of the form:

$y=mx+0$

Where, 'm' is the slope.

Now, the slope of a given as the change in y value to change in x value.

Consider the two end points of the red line (0, 0) and (4, 6).

The slope with two points $(x_1,y_1)\ and\ (x_2,y_2)$ on the line is given as:

$m=\frac{(y_2-y_1)}{(x_2-x_1)}$

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3 years ago

If 50-3x=x-26, then x=

IgorLugansk [536]

Answer:

x=19

Step-by-step explanation:

50 - 3x = x -26

50-3x-50=x-26-50

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-3x-x=x-76-x

-4x= -76

x= -76/-4

x=19

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3 years ago