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3 years ago

Please anyone help please ASAP

Mathematics

2 answers:

ZanzabumX [31]3 years ago

5 0

Answer:

x=7.90 x≈8

Step-by-step explanation:

they are alternate interior angles

so: 7x+6+15x=180

22x+6=180

22x=174

=7.9090......

you can double check my work

denis23 [38]3 years ago

3 0

Answer:

Angle WTS will be 180 degree minus 15x. You can write this as an expression:

180-15x

Now you have an expression for each angle in the triangle. Triangles will always have 180 degrees in them. You can add the expressions together and set it equal to 180. Then you can solve the equation for the x variable.

Step-by-step explanation:

Angle SWT + angle WTS + angle TSW = 180 degrees

Replace each angle with the expression then solve.

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earnstyle [38]

Answer:

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Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Can someone’s please help

Fiesta28 [93]

Answer:

4.87 ft

Step-by-step explanation:

The height of the skylight =

The height of the blue △ - the height of the red △

Let b ft be the height of the blue △.

sin 60° = $\frac{b}{25}$

b = 25 sin 60°

Let r ft be the height of the red △.

tan 40° = $\frac{r}{20}$

r = 20 tan 40°

The height of the skylight

= 25 sin 60° - 20 tan 40°

= 4.87 ft (rounded to the nearest hundredth)

3 0

3 years ago

-1/2x+12=-16 1/2 help Plz I need it quick

Leokris [45]

Subtract 12 from both sides
$- \frac{1}{2} x+12-12=-16 \frac{1}{2} -12$ $- \frac{1}{2}x=-28 \frac{1}{2}$
Divide by - $\frac{1}{2}$ which means multiply by -2
$x=-28 \frac{1}{2} *-2=57$

Hope that helps

7 0

4 years ago

The population of retired citizens in Memphis is 54000. If the population decreases at a rate of 5.9 % each year. What will the

kobusy [5.1K]

We will have the following:

First, we construct the exponential decay function, that is: