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Natasha_Volkova [10]
4 years ago
6

Angle relationship definitions please help​

Mathematics
1 answer:
lbvjy [14]4 years ago
8 0

Answer:

B

Step-by-step explanation:

<AOB and <BOC are supplementary angles because if you add 40 and 140 that equals 180 and the definition of a supplementary angle is either of two angles whose sum is 180°.

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Of the volunteers coming into a blood center, 1 in 3 have O+ blood, 1 in 15 have O-, 1 in 3 have A+, and 1 in 16 have A-. The na
Zanzabum

Answer:

Step-by-step explanation:

Given that of  the volunteers coming into a blood center, 1 in 3 have O+ blood, 1 in 15 have O-, 1 in 3 have A+, and 1 in 16 have A-.

i.e. we can say out of the volunteers

O+ = \frac{1}{3} = 0.3333

O-=\frac{1}{15}=0.06667

A+=\frac{1}{3}=0.3333

A-=\frac{1}{16}=0.0625

Total = 0.795833

We can say remaining belong to B or AB.

%he probability that the person selected has________.

a. type O+ blood  = \frac{0.3333}{0.7958} =0.4188

b. type O blood= \frac{0.3333+0.06667}{0.7958} =0.5026

c. type A blood = \frac{0.3333+0.0625}{0.7958} =0.4974

d. neither type A nor type O blood = 1-0.7958\\= 0.2042

8 0
3 years ago
Write a phrase for the algebraic expression:<br> s +7
never [62]

There are many possible answers for this.

One example is below.

<em>S = the number of stations included when a person orders basic cable, write an expression for the number of stations a person has if he ordered basic cable and 7 premium channels.</em>

We can represent this as s + 7.

The value that we don't know is the number of

stations included when a person orders basic cable.

So we can represent that as s.

Then, since the person ordered 7 premium channels, that means he

is adding an additional 7 channels to his basic cable plan.

So we can represent this as s + 7.

7 0
3 years ago
Read 2 more answers
What is the percent of change if 18 is increased to 45? Round your answer to the
lubasha [3.4K]

Answer:

150%

Step-by-step explanation:

% change = change/original x 100

45-18 = 27

27/18 x 100 = 150

6 0
3 years ago
2. Which polynomial has a leading coefficient of 5 and a degree of 4?
11Alexandr11 [23.1K]
Answer B. since it has 5x^4
4 0
3 years ago
A coffee shop sells coffee to about 500 people every morning, but this can vary by as many as 60 people. On any given day, what
Ivanshal [37]

Answer:

440 ≤ x ≤560

Step-by-step explanation:

  1. |x−500|≤60
  2. Rewrite it as a compound inequality−60≤x−500≤60
  3. Solve for X by adding 500 to each side. -60+500≤x-500+500≤60+500
  4. Leaving you with 440≤x≤560
  5. Answer: The coffee shop is expected to serve a maximum of 560 customers and a minimum of 440 customers per morning.  
4 0
3 years ago
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