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yanalaym [24]
3 years ago
7

(4x+5)(4x−5) I'm stuck can someone please help me ​

Mathematics
2 answers:
Marizza181 [45]3 years ago
5 0

Answer:6small2−25

Step-by-step explanation:

Vesnalui [34]3 years ago
3 0

Answer:

16x² - 25

Step-by-step explanation:

(4x+5)(4x−5)

16x² - 20x + 20x - 25

16x² - 25

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Do any of you guys know this please i need helppp!!
Fudgin [204]
The third one
5/6 is the answer
7 0
2 years ago
Read 2 more answers
If x2 = 20, what is the value of x?
ArbitrLikvidat [17]
The correct answer is the second option: plus or minus square root of 20
Hope this helped :)
3 0
3 years ago
Read 2 more answers
What is the value? ​
Andrei [34K]

Answer:

The value of x is 16.

3 0
3 years ago
An urn contains a very large number of marbles of four different colors: red, orange, yellow, and green. A sample of 12 marbles d
Umnica [9.8K]

Answer:

We  can reject the hypothesis at the 0.05 significance level.

 

Step-by-step explanation:

given that an urn contains  a very large number of marbles of four different colors: red, orange, yellow, and green. A sample of 12 marbles drawn at random from the urn revealed 2 red, 5 orange, 4 yellow, and 1 green marble.

H0: All colours are equally likely

Ha: atleast two colours are not equally likely

(Two tailed chi square test at 5% significance level)

color                  Red           Orange      Yellow      Green         total

Observed  O         2                     5                  4           1              12    

Expected   E         3                     3                   3          3              12

(O-E)^2/E             0.3333            5.3333        0.3333  5.3333     11.3333

chi square = 11.3333

df =3

p value = 0.010055

Since p < 0.05 we reject H0

We  can reject the hypothesis at the 0.05 significance level.

 

3 0
3 years ago
Hello! How to sketch the graph?
Alenkasestr [34]

Answer:

Draw your y and x axis , the y axis is going to be a vertical line while the x axis is going to be a horizontal line

6 0
2 years ago
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