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Sindrei [870]
2 years ago
14

Answer this question to get marked as brainliest plus 15 points!!!!

Mathematics
1 answer:
Alchen [17]2 years ago
4 0

Answer:

D

Step-by-step explanation:

complementary means it equals 90

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lin read 3/8 of a magazine article on monday and 1/8 of article tuesday. what fraction of the article did she read on monday and
umka21 [38]
Lin read 1/2 of the magazine article on those 2 days.

This can be found by adding 3/8 and 1/8. This gives you 4/8 or 1/2 if you simplify it (divide by 4).

I hope this helps!
7 0
3 years ago
Read 2 more answers
There are 3 red and 9 blue counters in a box. A counter is chosen and then replaced. If you did this 144 times, how many times w
anygoal [31]
If you do it 144 times that is (3+9)*12
This means that 12 times 3 red and 9 blue counters will be chosen that means that 9 blue counters will be chosen 12 times. 9*12 is 108.
This means blue counters will be chosen 108 times.
This can be checked as 108/3 would give you the number of red counters which is 36 and 108+36 is 144 

3 0
3 years ago
The difference of a number squared and the number is one less than four times the number.
Ostrovityanka [42]
The difference (subtraction) of a number (x) squared (²) and the number (x) is (=) one less than (- 1) four times (4 ·) the number (x)

x² - x = 4x - 1
7 0
2 years ago
The weight, X, of cherry tomatoes selected at random from a very large bin at the local supermarket follows a Normal distributio
Vesna [10]

Answer: the probability that exactly 5 of the 8 cherry tomatoes weigh less than 4 oz is 0.05

Step-by-step explanation:

Given that;

X has normal distribution has mean µ = 3

standard deviation σ = 2  

now

P( x< 4) = P( (x-µ)/σ /(3-4)/5)

= P( z < -0.5 )

= 0.3085  {from the z-table}

X has binomial distribution with n = 8 and p = 0.3085

so P(x=5)

P(x=5) = 8C₅(0.3085)⁵ (1 - 0.3085)⁸⁻⁵

= 0.0517  ≈ 0.05

Therefore the probability that exactly 5 of the 8 cherry tomatoes weigh less than 4 oz is 0.05

7 0
2 years ago
3(2x + 5) 2 2(x + 6)
puteri [66]

Answer:

i recommend you watch videos on youtuube about equations and take notes.

Step-by-step explanation:

6 0
2 years ago
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