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Marina86 [1]
4 years ago
7

X+10=20 x=? The best answer gets brainliest.

Mathematics
2 answers:
nika2105 [10]4 years ago
5 0
X is 10 because 10+10=20

I hope this helped! :)
Mrrafil [7]4 years ago
4 0

Answer:

2

Step-by-step explanation:

Im am sorry if i get it wrong

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Heeeelllpppssss pleeaassee.....…………
Kay [80]

Answer:

x= -8     x=2

Step-by-step explanation:

x^2 +6x - 6 = 10

Subtract 10 from each side

x^2 +6x -16 =0

Factor  what 2 numbers multiply to -16 and add to 6

8*-2 = -16

8-2 = 6

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

Using the zero product property

x+8 =0    x-2 =0

x= -8     x=2

8 0
3 years ago
Which polynomial is prime?
MariettaO [177]

Answer:

4x^(3)+2x^(2)+6x+3

Step-by-step explanation:

A polynomial is a combination of terms separated by + or − signs. A polynomial does not contain variables raised to negative or fractional exponents, variables in the denominator or under a radical, or any special features such as trigonometric functions, or logarithms. Polynomial

6 0
3 years ago
How do you express sin x + cos x in terms of sine only?
frez [133]

Answer:

\sin x + \sqrt{1-\sin^2x}

Step-by-step explanation:

Given: sin x + cos x

To change the given trigonometry expression in term of sine only.

Trigonometry identity:-

  • \sin^2x+\cos^2x=1
  • \cos x=\sqrt{1-\sin^2x}

Expression: \sin x+\cos x

We get rid of cos x from expression and write as sine form.

Expression: \sin x + \sqrt{1-\sin^2x}        \because \cos x=\sqrt{1-\sin^2x}

Hence, The final expression is only sine function.

4 0
4 years ago
Giải pt: 1 + 2sinxcosx = sinx + 2cosx
den301095 [7]

Answer:

even i dont know can help

8 0
3 years ago
What is the unit of measure ?
Dima020 [189]
Since it is area the best measurement would be square meters.
3 0
4 years ago
Read 2 more answers
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