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Katyanochek1 [597]
3 years ago
13

Plz help really bad at geometry

Mathematics
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
2
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
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