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3 years ago

Can someone please help me with this question

Mathematics

1 answer:

Anton [14]3 years ago

5 0

It seems the first line has to be

1. AB=CD and AD=CB 1. given

2. AC=AC 2. Reflexivity (things are equal to themselves)

3 $\triangle$ ACB $\cong$ $\triangle$ CAD 3. SSS

4. $\angle$ 1 = $\angle$ 4. Corresponding parts of congruent triangles

5 DC || AB 5. Congruent alternate traversal angles imply parallel lines

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1+4 =5, 2+5=12, 3+6=21 then 8+11 ...

Katena32 [7]

The answer to 8 + 11 is 19

4 0

3 years ago

Read 2 more answers

HELP PLSSS I DONT REMEMBER!!

Tatiana [17]

Answer:

8x-31 = 2x+92

Step-by-step explanation:

The angles are corresponding angles and corresponding angles are equal

8x-31 = 2x+92

8 0

2 years ago

Jan spent the day at the mall. She came home with $9.50. She spent $5.25 on earrings and 3 times that amount on a shirt. How muc

ki77a [65]

Answer:

She took $30.50 to the mall originally

Step-by-step explanation:

Let us solve the problem step by step

∵ She spent $5.25 on earrings

∵ The price of the shirt is 3 times the price of the earrings

∴ The price of the shirt = 3 × 5.25 = 15.75

∴ She spent $15.75 on the shirt

Find her total spending in the mall by adding the prices of earrings and the shirt

∴ She spent = 5.25 + 15.75 = 21

∴ She spent $21 on the mall

∵ She came home with $9.50

∵ She spent $21 on the mall

- Add them to find her original amount of money

∴ She took = 21 + 9.50 = 30.50

∴ She took $30.50 to the mall originally

5 0

3 years ago

The scale on a map shows that 5 centimeters = 2 kilometers.

ryzh [129]

5 cm = 2km

Scale= 5 cm : 200000 cm

= 1 : 40000

a. 1 : 40000 = x : 500000

x = 12.5 cm

b.1 : 40000 = 2 : x

x = 80000 cm

x = 0.8 km

8 0

3 years ago

Solution set of 5/11x+1/3=3/7-6/11x+3/7

kirill115 [55]

$\frac{5}{11x} + \frac{1}{3} = \frac{3}{7} - \frac{6}{11x} + \frac{3}{7} \\ \frac{11}{11x} = \frac{6}{7} - \frac{1}{3} \\ \frac{1}{x} = \frac{11}{21} \\ x = \frac{21}{11} = 1 \frac{10}{11}$

6 0

3 years ago