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k0ka [10]
1 year ago
8

Simplify 15(10-4-2) 14 015/2 52-4110 O 105-4110

Mathematics
1 answer:
inna [77]1 year ago
3 0

\qquad\qquad\huge\underline{\boxed{\sf Answer☂}}

let's simplify ~

\qquad \sf  \dashrightarrow \:  \sqrt{5} (10 - 4 \sqrt{2} )

\qquad \sf  \dashrightarrow \: ( \sqrt{5}  \times 10) - ( \sqrt{5}  \times  4\sqrt{2)}

\qquad \sf  \dashrightarrow \: 10 \sqrt{5}  -  4\sqrt{10}

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Please help explanation if possible
erastova [34]

Answer:

I don't know ask to your teacher

6 0
2 years ago
Which is one of the solutions to the equation 2x^2 - x - 4 = 0
Alex73 [517]

Answer:

x_{1}=\frac{1+\sqrt{33} }{4}\\x_{2}=\frac{1-\sqrt{33} }{4}

Step-by-step explanation:

Using quadratic formula

x=\frac{-b+-\sqrt{b^{2}-4*a*c} }{2*a}

we will have two solutions.

2x^2 - x - 4 = 0

So, a=2   b=-1  c=-4, we have:

x_{1}=\frac{+1+\sqrt{-1^{2}-4*2*-4} }{2*2}\\\\x_{2}=\frac{+1-\sqrt{-1^{2}-4*2*-4} }{2*2}

Finally, we have two solutions:

x_{1}=\frac{1+\sqrt{33} }{4}\\\\x_{2}=\frac{1-\sqrt{33} }{4}

5 0
3 years ago
Question 6 of 10
Ivan

Answer:

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4 0
2 years ago
The sum of two consecutive even integers is 530. Find the integers.
joja [24]

The 2 numbers are 264 and 266. 264+266=530.


8 0
3 years ago
What would you do to solve the system?
kipiarov [429]
Answer:

Explanation:

12x = 48 - 8y
10x + 8y = 38
———————
12x + 8y = 48
10x + 8y = 38
———————
12x + 8y = 48
-1(10x + 8y = 38)
————————
12x + 8y = 48
-10x - 8y = -38
————————
2x = 10
x = 10/2 = 5

If x = 5 then:
10x + 8y = 38
10(5) + 8y = 38
50 + 8y = 38
8y = 38 - 50
8y = -12
y = -12/8
y = -3/2

Therefore, x = 5 and y = -3/2

6 0
3 years ago
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