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FromTheMoon [43]

3 years ago

14

Can you prove these similar triangle step by step?

1 answer:

RUDIKE [14]3 years ago

4 0

Answer:

If an angle of one triangle is congruent to the corresponding angle of another triangle and the lengths of the sides including these angles are in proportion, the triangles are similar. the remaining sets of angles will be congruent and the remaining corresponding sides will be in proportion.

hopes this helps

Step-by-step explanation:

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LiRa [457]

Answer:

The first one would be 82.5

Step-by-step explanation:

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3 years ago

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What is 7<br> and 8 and 9

Roman55 [17]

7. 2/3
8. 8/9
9 2

I hope this helps
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3 years ago

Two weather tracking stations are on the equator 146 miles apart. A weather balloon is located on a bearing of N 35°E from the w

jekas [21]

ANSWER:

Distance between two points W and E = 146 miles and B is the position of B (balloon)

Angle BWE =55 degrees and angle BEW =67 degrees therefore angle WBE = 180-55-67 =58 degrees

Using sine formula

w/sin (55)= b/sin(58)

w= 146{sin 55/ sin 58) =141 miles Step-by-step explanation:

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3 years ago

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Please help!<br>what polynomial must be added to <br>−5x^3 + 4x − 3 so that the sum is x^2 − x − 1?

lakkis [162]

<h3><u>Solution:- </u></h3>

Let the number to be added be A

Now,

$\begin{gathered}\implies\quad \sf −5x^3 + 4x − 3 + A = x^2 − x − 1 \\\end{gathered}$

Transposing (−5x³+ 4x − 3 ) to other side-

$\begin{gathered}\\\implies\quad \sf A = x^2 − x − 1 -( −5x^3 + 4x − 3) \\\end{gathered}$

Remember if there is a -ve sign before a bracket the signs of whole of the terms changes on opening bracket

$\begin{gathered}\\\implies\quad \sf A = x^2 − x − 1 + 5x^3 - 4x + 3\\\end{gathered}$

Putting like terms together -

$\begin{gathered}\\\implies\quad \sf A = 5x^3 +x^2 - x -4x +3 -1 \\\end{gathered}$

$\begin{gathered}\\\implies\quad \sf A = 5x^3 +x^2 -5x +2 \\\end{gathered}$

$\longrightarrow$ Therefore, 5x³+x²-5x +2 should be added to −5x³+ 4x − 3 to get x²− x − 1

6 0

3 years ago

Un lote en forma de rectángulo tiene 106 m de perímetro y el largo excede en 15 m al ancho del terreno CUANTO mide el largo?

Sonbull [250]

Answer:

answer is d your welcome

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3 years ago