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shepuryov [24]
3 years ago
7

Find the root 2x2 + x-4 = 0

Mathematics
1 answer:
Aneli [31]3 years ago
7 0

Answer:4

Step-by-step explanation:

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Solve each inequality.
olga_2 [115]
To solve each inequality, we can use different operations or transposition to simplify the equations or expressions given.
1. m - 7 < 6   m < 13
2. x + 4.5 ≥ 5.5   x  ≥ 1
3. p + 12 > 9    p > -3
8 0
3 years ago
A probability experiment is conducted in which the sample space of the experiment is Sequals=StartSet 9 comma 10 comma 11 comma
White raven [17]

Answer:

From both approaches P(F or G)=0.667

Step-by-step explanation:

P(F or G)=?

F={9, 10, 11, 12, 13}​

G={13,14,15,16}

Finding P(F or G) by counting outcomes in F or G

F or G={9, 10, 11, 12, 13}or {13,14,15,16}

F or G={9, 10, 11, 12,13,14,15,16}

number of outcomes in F or G=n(F or G)=8

S={9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20}​

number of outcomes in S=n(S)=12

P(F or G)=n(F or G)/n(S)

P(F or G)=8/12

P(F or G)=0.667

Finding P(F or G) by addition rule

P(F or G)=P(F)+P(G)-P(F and G)

F={9, 10, 11, 12, 13}​

number of outcomes in F=n(F)=5

P(F)=n(F)/n(S)

P(F)=5/12

P(F)=0.417

G={13,14,15,16}

number of outcomes in G=n(G)=4

P(G)=n(G)/n(S)

P(G)=4/12

P(G)=0.333

F and G={9, 10, 11, 12, 13}and {13,14,15,16}

F and G={13}

number of outcomes in F and G=n(F and G)=1

P(F and G)=n(F and G)/n(S)

P(F and G)=1/12

P(F and G)=0.083

P(F or G)=P(F)+P(G)-P(F and G)

P(F or G)=0.417+0.333-0.083

P(F or G)=0.667

8 0
2 years ago
Read 2 more answers
Solve pls brainliest
Korolek [52]

Answer:

Down below

Step-by-step explanation:

No

no,

yes

,I am not sure,

yes

integers are whole numbers

I am not sure of one of them sorry.

5 0
2 years ago
Can someone please tell me what angle x is
Inessa [10]

Answer:

it's an angle X duh he he he be

8 0
3 years ago
Read 2 more answers
If the height is 24, solve for x. h=-16x^2+8x+48
disa [49]

Answer:

x=  

32

7+  

3121

​  

 

​  

,  

32

7−  

3121

​  

 

​  

 

Step-by-step explanation:

h+16^2-8x-48=0

-7x+16x^2-48=0

x=  

32

7+  

3121

​  

 

​  

,  

32

7−  

3121

​  

 

​  

 

8 0
2 years ago
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