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RoseWind [281]
3 years ago
8

PLZ help with expression

Mathematics
1 answer:
umka2103 [35]3 years ago
6 0
The last two options are correct, but it looks like you’ve got them :)
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For each of the following quadrilaterals, Select all the properties that must be true.
OleMash [197]

Answer:

1) two pairs of parallel sides

2) four right angles and all sides congruent

3) all sides congruent

Step-by-step explanation:

8 0
3 years ago
Find the unknown of the following
abruzzese [7]

Step-by-step explanation:

For 4.

4b + 2b + 3b = 180°< Sum of angles of triangle >

9b = 180°

b = 180° / 9

b = 20°

4b = 4* 20° = 80°

2b = 2* 20° = 40°

3b = 3 * 20° = 60°

For 5.

x = 64° + 45° <Exterior angle of a triangle is equal to the sum of two opposite interior angles>

x = 109°

Hope it helps :)

8 0
2 years ago
Simplify the expression.<br> 3.2a + 3.5b – 2.1a
antiseptic1488 [7]

Answer:

1.1a+3.5b

Step-by-step explanation:

7 0
1 year ago
Anna is reading a 300-page book. She can read a page in two minutes. If she has finished reading 75 percent of the pages, how ma
Daniel [21]

Answer:

150 minutes

Step-by-step explanation:

If Anna read 75% of her 300-page book, then she has already read:

300 × 75%

= 300×0.75

= 225

225 pages.

If Anna has already read 225 pages, then she has:

300 - 225 = 75

75 pages left still to read.

If Anna reads 2 minutes per page, then she has

75 × 2 = 150 minutes.

She has 150 minutes of reading left to finish her book.

By the way, it's weird to say you have 150 minutes of something to do. In real life 150 minutes = 2 1/2 hours. jfyi. Have a great day!

3 0
1 year ago
Why is 7.8 an irrational number?
andreyandreev [35.5K]
Its 78/10 = 39/5
Hope it helps :)
6 0
3 years ago
Read 2 more answers
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