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leonid [27]
3 years ago
12

Find the product : (7t+1)(7t-1)

Mathematics
1 answer:
emmasim [6.3K]3 years ago
4 0
A is correct.

explanation: 49t(2)-7t + 7t

becomes 49t(2)-1

please vote my answer brainliest. thanks!
You might be interested in
How many whole numbers are there between 30 and 79?
Svetllana [295]

Answer:

50

Step-by-step explanation:

<u>Definition of whole number: </u>Whole numbers are a set of numbers including the set of natural numbers (1 to infinity) and the integer '0'

The formula for finding the number of whole numbers between to given numbers “m” and “n” (assuming that “m” and “n” are included in the listing, and that “n” is the larger value) is:

(n - m) + 1

And the formula gives:

(79 - 30) + 1 = 49 + 1 = 50

8 0
2 years ago
Help!! Thank u and please
Llana [10]

Answer:

150

Step-by-step explanation:

z^2. (x-y)

(5)^2. (9-3)

25. 6

150

7 0
4 years ago
Read 2 more answers
Help PLZ<br><br> I just need an answer it doesn't have to be correct.
Anestetic [448]

Answer:

you can decide if you want this answer or not  :D

Step-by-step explanation:

1st  , notice that our problem is about an eight part whole.  I mean,  the questions are around an object of 8 parts.  so start thinking 1/8 ths

A) asks about P(7)  ... they want to know.. how often the spinner will land on 7. so if it's totally random, 7 will happen just as likely as any of the other numbers so 7 will happen  1/8 th of the time

as a fraction  it's  1/8  as a decimal it's 0.125 and as a percent it's 12.5 %

B) asks about  P(2 or 6 )   [ btw, p here stands for probability ]  

so it's  1/8 + 1/8 =  1/4  or one quarter of the time we would get a 2 or a 6

as a fraction it's  1/4  , as a decimal it's 0.25  and as a percent it's 25%

C)   asks  about P( greater than 4)  or  P( >4)   so that's the whole left side of the circle :0  

as a fraction it's 1/2  as a decimal it's 0.5  and as a percent   it's 50%

D) P( not a 5) or P( ~=5)  so every thing but a 5

as a fraction that's 7/8  as a decimal it's 0.875 and as a percent that 87.5 %

I'll take the odds on that last one to win the lottery plz  :)  

3 0
3 years ago
The lengths of the sides of the base of a right square pyramid are 2 m, and the slant height of the pyramid is 9 m. If the sides
emmasim [6.3K]

Answer:

Answer:

height h = 9 m

slant height s = 9.0553851381374 m

side length a = 2 m

lateral edge length e = 9.1104335791443 m

1/2 side length r = 1 m

volume V = 12 m3

lateral surface area L = 36.22154055255 m2

base surface area B = 4 m2

total surface area A = 40.22154055255 m2

Step-by-step explanation:

4 0
3 years ago
What does the letter q equal
Lady_Fox [76]

Step-by-step explanation:

11 + 3q = 15 + 2q

3q + 11 - 2q = 15

3q - 2q = 15 - 11

q = 4

5 0
2 years ago
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