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Paraphin [41]
3 years ago
8

Which expression is equivalent to (8a-3b+7)-(2a+b-4)?

Mathematics
2 answers:
Alekssandra [29.7K]3 years ago
7 0

Answer:

6a-4b+11

Step-by-step explanation:

step by step above^^

zlopas [31]3 years ago
3 0

Answer:

6a-4b+11

Step-by-step explanation:

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A code consist of a two digit number chosen from 00 to 49 followed by a letter of the alphabet. What is the probability the code
levacccp [35]

Answer:

<em>The probability that code is 14z will be \frac{1}{1300}</em>

Step-by-step explanation:

From 00 to 49, there are total 50 two-digit numbers.

The total number of alphabets is 26.

So, the probability of choosing 14 from all 50 two digit numbers will be:  \frac{1}{50}

and the probability of choosing 'z' from all 26 alphabets will be: \frac{1}{26}

Thus, the probability that code is 14z is = \frac{1}{50}\times \frac{1}{26}=\frac{1}{1300}

4 0
3 years ago
Please quickly answer number 6 will give brainliest
Vikki [24]
C strong
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8 0
2 years ago
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I need help with this what’s the answer
Dovator [93]

Answer:

b

Step-by-step explanation:

7 0
3 years ago
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1. Suppose people ages 16-30 make up 15% of drivers on the road, 80% of drivers are aged 31-64, and 5% of drivers are aged 65+.
Yuliya22 [10]

Answer:

0.8675

Step-by-step explanation:

Given that people ages 16-30 make up 15% of drivers on the road, 80% of drivers are aged 31-64, and 5% of drivers are aged 65+.

Furthermore, suppose drivers in each age range cause car accidents at the rates of 6%, 4%, and 9%, respectively.

age 16-30 31-64 >65  

Prob 0.15 0.8 0.05 1

Prob for accidents 0.06 0.09 0.04  

Product 0.009 0.072 0.002 0.083

Prob for 31-64 causing it/accident =\frac{0.072}{0.083} \\=0.8675

Using Bayes theorem we got answer as 0.8675

3 0
4 years ago
How can I find the area of this irregular shape?
Daniel [21]

Answer:

the idea is to devide the shape into 3 smaller parts.

Step-by-step explanation:

devide it to three areas :

> semi-circle (0.5 * pi * R), R=5

>Square (10 * 10)

> triangle (0.5 * base * height),

bsse =10, height =7

Add them together.

6 0
4 years ago
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