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tatuchka [14]
2 years ago
15

Please solve all 4 questions :) to be given the brainliest

Mathematics
1 answer:
Kruka [31]2 years ago
6 0

Answer:

q1 3 x ^2 − 5 x + 10

q2 1 − y^ 4

q3 exact form: x = − 5 /6

decimal form : 0.83r

q4 1 /2 z^ 2 + 1

Step-by-step explanation:

hope it correct please mark as brainliest if correct

thank you

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Can the following three measures form a triangle? 5,17 and 9
navik [9.2K]

Answer:

No

Step-by-step explanation:

Because 17 is greater than 5 + 9.

To form a triangle, no side can be equal or greater than the sum of the other 2 sides.

4 0
3 years ago
1. Simplify .<br>* a) (x - 1)(x2 + x + 1)​
tangare [24]

Answer:

x=1

Step-by-step explanation:

7 0
2 years ago
Your teacher is choosing 2 students to run an errand for her. There are 12 girls and 10 boys in the class. What is the probabili
Ne4ueva [31]

Answer:

2/7

Step-by-step explanation:

There are 22 (12 + 10) total students in the class. That means that the chance of the first student picked being a girl is 12/22.

Now, we must calculate the chance of the next student to be picked <em>also </em>being a girl - however, there is a trap here! Remember that since a girl has been picked, the total student pool has decreased to 21 and and the total number of girls has decreased to 11. This means the new chance of girl being picked is 11/21.

To find the probability of both these events happening in conjunction, these fractions must be multiplied. 12/22 * 11/21 = 132/462, which simplifies to 2/7.

4 0
2 years ago
Read 2 more answers
There are 84 students in the glee club there are 12 more boys than girls what is the ratio of the number of girls to the number
Masja [62]
Let us denote the number of boys in the glee club with X and the number of girls with Y.There are 84 students in the glee club, which means that the following equation can be written:X+Y=84We also now that there are 12 more boys than girls, so:X=Y+12We can rewrite the first equation like:(Y+12)+Y=842Y+12=842Y=62Y=62/2=31X=31+12=43So, the ratio of the number of girls to the number of boys is: Y/X=31/43
Read more on Brainly.com - brainly.com/question/4711779#readmore
5 0
3 years ago
Two adjacent, supplementary angles form a<br><br> line?
omeli [17]
obtuse because it all adds up to 180 degrees 
8 0
3 years ago
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