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Katyanochek1 [597]

3 years ago

13

Plz help really bad at geometry

1 answer:

trapecia [35]3 years ago

7 0

ST is a midsegment, which tells you that BD=2(ST) or ST=½BD. Use that to substitute the values and find ST.
BD=2(ST)
29+x=2(2x+31)
29+x=4x+62
29=3x+62
-33=3x
x=-11
Now that we know x, we can substitute that into 2x+31 to find ST
ST=2x+31
ST=2(-11)+31
ST=-22+31
ST=9

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USING YOUR MATH

Eddi Din [679]

Answer:

$area = \pi {r}^{2} \\ = \frac{22}{7} ( { \frac{22}{2} )}^{2} \\ = 380 \: sq \: feet$

8 0

3 years ago

Graph the image of the given triangle under a dilation with a scale factor of 1/3 and center of dilation (0, 0) .

Free_Kalibri [48]

The given triangle has vertices $(0,0), (0,9) ,(-6,0)$

After a dilation with a scale factor of $\frac{1}{3}$ about the origin , the image triangle will have vertices

$(0,0), (0,3), (-2,0)$

See attachment for graph

6 0

3 years ago

Read 2 more answers

Wyoming is an approximately square-shaped state. The area of Wyoming is 97,818 square miles. To the nearest mile, how long is on

BartSMP [9]

The formula for area of a square is Area = side^2.

You are given the area, so now you have 97,818 = Side^2.

To find Side, take the square root of both sides:

Side = √97818

Side = 312.76 miles.

Rounded to the nearest mile is 313 miles.

5 0

3 years ago

kotykmax [81]

Answer:

16.5 hours

Step-by-step explanation:

The bicycle costs $240. Eva already has $42. She is making $12 per hour.

240 = 12x + 42

Solve for x to find out how many hours Eva needs to work to buy the bicycle.

240 = 12x + 42

240 - 42 = (12x + 42) - 42

198 = 12x

198/12 = (12x)/12

16.5 = x

Eva needs to work 16.5 hours to be able to buy the bikw.

6 0

3 years ago

What value of x would make Bl parallel to RA?

igomit [66]

Given:

Bl parallel to RA.

To find:

The value of x.

Solution:

In triangle ATR and ITB,

$\angle ATR\cong \angle ITB$ [Common angles]

$\angle ART\cong \angle IBT$ [Corresponding angle]

$\triangle ATR\sim \triangle ITB$ [AA property of similarity]

We know that the corresponding sides of a similar triangle are proportional. So,

$\dfrac{AT}{IT}=\dfrac{AR}{IB}$

$\dfrac{x}{x+8}=\dfrac{12}{18}$

$\dfrac{x}{x+8}=\dfrac{2}{3}$

On cross multiplication, we get

$3(x)=2(x+8)$

$3x=2x+16$

$3x-2x=16$

$x=16$

Therefore, the correct option is C.

8 0

3 years ago