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LekaFEV [45]
3 years ago
9

4more then the difference of 2 and z​

Mathematics
1 answer:
Ilya [14]3 years ago
6 0
4 + 2 - Z for your expression
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Use quadratic formula solve .7x^2 - 28x - 7​
beks73 [17]

Answer:

x = 2 + sqrt(5) or x = 2 - sqrt(5)

Step-by-step explanation using the quadratic formula:

Solve for x over the real numbers:

7 (x^2 - 4 x - 1) = 0

Divide both sides by 7:

x^2 - 4 x - 1 = 0

Add 1 to both sides:

x^2 - 4 x = 1

Add 4 to both sides:

x^2 - 4 x + 4 = 5

Write the left hand side as a square:

(x - 2)^2 = 5

Take the square root of both sides:

x - 2 = sqrt(5) or x - 2 = -sqrt(5)

Add 2 to both sides:

x = 2 + sqrt(5) or x - 2 = -sqrt(5)

Add 2 to both sides:

Answer:  x = 2 + sqrt(5) or x = 2 - sqrt(5)

6 0
3 years ago
What is the maximum number of circles of radius 1 you can fit, without overlapping them,
zzz [600]
I think it’s a carrot I just need points
8 0
3 years ago
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Who led the women rights movemnt during the Industrial Revoultion in Britain?
olya-2409 [2.1K]

Answer:

Elizibeth Cady Stanton

Step-by-step explanation:

Anthony and Elizabeth Cady Stanton formed groups to push for women's right to vote during the Industrial Revolution. It took a long time and a lot of work, but women finally gained the right to vote when the 19th Amendment was ratified in 1920.

8 0
3 years ago
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PLEASEHELP!
denis-greek [22]
You factor out primes from the root, for example:
root 100
you can get 10 from it, or we'll use 5

100/5=20
20/5=4
root 4= 2
because there are 2 "5" we can bring that out of the root, there are 2 "2" so we bring that out too.
When a number is taking out of a root, the 2 exact same numbers become one. in this case, there are ONE 5 and ONE 2 outside the root. then You multiply 5 and 2 together, and you get 10

6 0
3 years ago
Solve 0.6861 + t =9.64
prisoha [69]

Answer:

Step-by-step explanation:

you need to subract .6861 from both sides so

9.64-.6861=t

t=8.954

5 0
3 years ago
Read 2 more answers
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