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FromTheMoon [43]
2 years ago
5

Can someone help me plz ​

Mathematics
1 answer:
nata0808 [166]2 years ago
5 0

Answer: 170

Step-by-step explanation:

t r is 90 and 82 and it = 172 just round that and you have 170

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astraxan [27]

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3 years ago
Find all real solutions of the equation by completing the square. (Enter your answers as a comma-separated list.) x2 − 4x − 8 =
Nat2105 [25]

Answer:

After completing the square the expression is (x-2)^2 -12 =0 and real solution are x = 5.46 and x = -1.46

Step-by-step explanation:

We need to complete the square:

x^2 − 4x − 8 = 0

x^2 -2(x)(2)+(2)^2 -8 -4 =0

(x^2 -4x +4) - 12 = 0

(x-2)^2 -12 =0

Now, finding the value of x

(x-2)^2 -12 =0

(x-2)^2 = 12

taking square root on both sides

\sqrt{(x-2)^2}= \sqrt{12} \\(x-2) = \pm\sqrt{12} \\x = \pm\sqrt{12} +2\\x = \sqrt{12}+2 \,\,and\,\,x=-\sqrt{12}+2\\x= 3.46+2 \,\,and\,\,x=-3.46+2\\x =5.46\,\,and\,\,x=-1.46

So, After completing the square the expression is (x-2)^2 -12 =0 and real solution are x = 5.46 and x = -1.46

5 0
3 years ago
The product of two whole numbers is 812 and their sum if 57. What are the two numbers?
pshichka [43]

Answer:

28 and 29

Step-by-step explanation:

28x29=812

28+29=57

6 0
2 years ago
I need help on this pls
Nady [450]
I’m eating chips rn . Maybe later
6 0
2 years ago
Is(5, 6)a solution to the inequality<br> y &lt; 2x + 4 ?
Diano4ka-milaya [45]

Answer:

yes

Step-by-step explanation:

y < 2x +4

6 < 2·5 +4

6 < 14

4 0
2 years ago
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