50 POINTS!!! ASAP plz answer all questions will give brainiest!!!!

Mathematics

1 answer:

Sedaia [141]3 years ago

7 0

Answer:

1. $27x^{2} -78x+16$

2. not completely sure but i think its $x= -2 + 3i$

3.x = 2 i √ 5 , − 2 i √ 5

4.x = − 9 ± √ 73 /2

5. Im not sure...

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Need Help Please (b) Solve for x. Show each step of the solution. 3.5(7 – x) + 28 = 97 – 4.5(3x + 21)

leonid [27]

it is 13 1/3 . hope it helps

4 0

3 years ago

Each morning, max walks to school. at 8:20, he passes a stoplight that is 2 blocks from home. he reaches the town library at 8:2

frosja888 [35]

This sentence is key: "At this point, he is 3 blocks from school and half way there"
since 3 blocks is halfway of the trip, that means the total distance is 6 blocks 

from the stoplight to the library must be one block, and one block took him 4 minutes 

therefore, therefore, the total trip takes 4 * 6 = 24 minutes, or 4 * 3 = 12 minutes from the library 

8:24 + 12 = 8:36 

he arrives at school at 8:36 
(and yes, make sure to sketch this out!)

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3 years ago

Read 2 more answers

For each of these relations on the set {21, 22, 23, 24}, decide whether it is reflexive, whether it is symmetric, whether it is

bonufazy [111]

Answer:

Step-by-step explanation:

I. { (22,22) , (22,23) , (22,24) , (23,22) , (23,23) , (23,24) }

Reflexive : True because we see the pairs (22,22) , (23,23)..

Symmetrix : NO, as we see the pairs (22,24) BUT NOT (24,22)

Transitive : YES, As we see (22,22 ) and (22, 24) , we see the pairs (22,24)

Antisymmetric : NO