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2 years ago

Do a two column proof! Given: AB = DC Prove: AC = DB please help!!!!!!!

Mathematics

1 answer:

scoundrel [369]2 years ago

6 0

Answer:

answer is B

Step-by-step explanation:

hope dis help and if I may have brainly plz

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Simplify the following expression 7 y + 2x - 10 y + 3 x^2 -10x

tiny-mole [99]

Answer:

$3x^{2} -3y-8x$

Step-by-step explanation:

Combine like terms

7y + -10 y = -3y

2x + -10x = -8x

$3x^{2} -3y-8x$

4 0

2 years ago

Read 2 more answers

phobe, Andy and polly share £270 phobe gets 3 times as much as Andy who gets twice as much as polly work out how much they each

Lady bird [3.3K]

Answer:

<h2>Andy = £ 60</h2><h2>Phobe=£ 180</h2><h2>Polly= £ 30</h2>

Step-by-step explanation:

Let ,

Andy gets £ X

Phone gets 3x

Polly gets y = X/2

Andy gets 2y

2y = X

Now,

$x + 3x + \frac{x}{2} = 270 \\ \frac{x \times 2 + 3x \times 2 + x}{2} = 270 \\ \frac{2x + 6x + x}{2} = 270 \\ \frac{9x}{2} = 270 \\ 9x = 270 \times 2 \: ( \: cross \: multiplication) \\ 9x = 540 \\ x = \frac{540}{9} \\ x = 60$

Replacing values,

$phobe \: gets = 3x \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 3 \times 60 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 180$

$polly \: gets = \frac{x}{2} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \frac{60}{2} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 30$

Hope this helps...

Good luck on your assignment..

4 0

3 years ago

1 yd² of soil containing 30% clay was mixed into 2 yd of soil containing 45% clay. What is the clay content of the mixture?

siniylev [52]

Answer:

105% ?

Step-by-step explanation:

I'm not entirely sure if the 1 yard 'squared' is considered in the 30% but assuming it's not ... 1yd =30% 1yd^2=60% and 2yd=45% so 60%+45%=100%

5 0

1 year ago

In ΔQRS, the measure of ∠S=90°, the measure of ∠Q=31°, and RS = 27 feet. Find the length of SQ to the nearest tenth of a foot.

Soloha48 [4]

Answer:

44.9

Step-by-step explanation:

5 0

2 years ago

Herald's Printing needs to ship 56,000 programs to the Queen basket team. The printing company can fit 800 programs in each box.

sasho [114]

Answer:70

Step-by-step explanation: It’s simply division. 56,000 programs, divided into boxes, with 800 in each box, will need 70 boxes.

5 0

2 years ago