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kolezko [41]
3 years ago
12

URGENT!! EASY IM DUMB MY LAST QUESTION WILL FOREVER BE GRATEFUL PLS HELP WILL GIVE BRANLIEST!! AT LEAST TAKE A LOOK!!!! PLS I AM

BEGGING!!!
18. Using the diagram below as reference, write a paragraph proof to prove that the symmetric property of congruence exists for any two angles. (IMAGE BELOW)

Given: ∠A is congruent to ∠B
Prove: ∠B is congruent to ∠A
Plan: Show that ∠A and ∠B have the same measure, thus ∠B and ∠A have the same measure under symmetry for equality. Conclude with ∠B being congruent to ∠A.

Mathematics
1 answer:
serious [3.7K]3 years ago
6 0

Answer:

Below.

Step-by-step explanation:

18. Since A is congruent to B, you can conclude that B is congruent to A by the Reflexive Property of Congruence.

     

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Answer this plz<br> find 7%of£40
posledela
£2.8

7% of £40 is £2.8
4 0
3 years ago
Factor the gcf out of the expression: -6x^3 - 9xy + 18x
Westkost [7]

Answer:

-207xy

Step-by-step explanation:

-6x^3 - 9xy + 18x

-216x -9xy +18x

-225xy + 18x

-207xy

If I'm not mistaken.

6 0
3 years ago
In how many ways can a password be made using four letters from the 26 letter English alphabet letters can’t be repeated
valentinak56 [21]

Answer:

If you go by normal method, no. of possible passwords that can be created with 26 alphabets are 26X26X26X26 = 456,976

Step-by-step explanation:

. If you do not want to repeat the alphabets, you can use combinations. i.e. C(26, 4) or 26C4 = 358,800 ways

7 0
3 years ago
A builder makes drainpipes that drop 1cm over a horizontal distance of 30cm to prevent clogs. A certain drainpipe needs to cover
Ann [662]

Answer:

700.39cm

Step-by-step explanation:

For a horizontal distance of 30cm, the drop is 1cm, now we need to get the drop for horizontal distance of 700 cm to maintain the same slope

Using the concept of cross multiplication

30cm=1 cm drop

700 cm=x

30x=700

X=700/30=70/3=23 ⅓

Utilizing pythagoras theorem, the length of pipe will be

L=√(23⅓)²+700²

L=700.38878092417 cm

Rounded off, the length is approximately 700.39 cm

8 0
3 years ago
The function f(x) = −x^2 − 5x + 50 shows the relationship between the vertical distance of a diver from a pool's surface f(x), i
elena-14-01-66 [18.8K]
We will solve the equation to find a zero of f(x):-x^{2}-5x+50=0
The formula is:x_{12} = \frac{-b\pm \sqrt{b^{2}-4ac } }{2a}where:
a=-1, b=-5, c =50 x_{12} = \frac{5\pm \sqrt{25+200} }{-2}= \frac{5\pm \sqrt{225} }{-2}= \frac{-10}{-2}=5This is the only solution because the other is:\frac{5+10}{-2}= \frac{15}{-2}=-7.5which is not possible.
Answer: D) The diver hits the water 5 feet away horizontally from the board.
5 0
4 years ago
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