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Dmitriy789 [7]
3 years ago
15

Which of the following must be true?

Mathematics
2 answers:
Naddika [18.5K]3 years ago
5 0

Answer:

B, it's the only plausible one. A is wrong because the value would be above 180°

Setler [38]3 years ago
5 0

Answer:

m∠2+m∠8=180°

Step-by-step explanation:

m∠1=m∠4=m∠5=m∠8

m∠2=m∠3m∠6=m∠7

m∠1+m∠2=180°

and <em>m∠2+m∠8=180°</em>

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H e l p
OLEGan [10]

Answer;  

1: when shawn woke up

2: the temperature change is 27

Step-by-step explanation:

5 0
3 years ago
Ricky can type 161 words in 7 minutes. how many can words can he type in 20 minutes.
kakasveta [241]
So 161 divide 7 equals 23 so therefor he types 23 words per minutes. 23 times 20 equals 460. I think he can type 460 words in 20 minutes.
8 0
3 years ago
Read 2 more answers
3. In an experiment a scientist mixes together three substances. She mixes 18.42 g of
Harman [31]

Answer:

6.24

Step-by-step explanation:

A= 18.42g, B = 5.8g,C = 0.75g

Total = 18.42 + 5.8 + 0.75

= 24.97g

Then divided into four equal parts

= 24.97g/4

= 6.2425g

= 6.24g

7 0
3 years ago
Tim will buy a pair of shoes that cost $120.He received a 35% discount coupon. Luckily his friend Mario gets an additional 15% d
almond37 [142]

Answer: 55.20$

Step-by-step explanation:

1. Add up 35% with the 15% since Mario is paying for it

2. Multiply 120(the cost without any discount/tax) with the new discount percentage

3. Now with the answer from multiplying subtract it from 120.

4. With the answer, multiply the tax percentage(0.08)

5. Now add It to the discounted price.

6. Round it to the nearest hundredth

3 0
2 years ago
Find the probability that a point is chosen randomly inside the rectangle is in each given shape...
BaLLatris [955]

Answer:

  1. <u>0.25</u>
  2. <u>0.85</u>

Step-by-step explanation:

P (Triangle or Square) :

  • Area of Triangle + Area of Square / Area of Rectangle
  • 1/2 x 3 x 4 (height is found by Pythagorean Theorem) + (3)² / 10 x 6
  • 6 + 9 / 60
  • 15/60
  • <u>0.25</u>

<u></u>

P (Not the square) :

  • Area of rectangle - Area of square / Area of rectangle
  • 60 - 9 / 60
  • 51/60
  • 17/20
  • <u>0.85</u>
5 0
2 years ago
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