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Vinil7 [7]
3 years ago
14

Can someone help me find the value of x please

Mathematics
2 answers:
kvv77 [185]3 years ago
6 0
The value of x is 21 because:
69 + x = 90 
69 + 21 = 90
Andreyy893 years ago
5 0
Okay so by the square we know that this is a right angle. Righ angles are 90 degrees. They give us 69 degrees and x so 69 + x = 90. To get x subtract 69 from 90. The answer is 21 degrees. 
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Part A: Factor 3x2y2 − 2xy2 − 8y2. Show your work. (4 points)
dmitriy555 [2]
Hello,

1)
3x²y²-2xy²-8y²=y²(3x²-2x-8)
=y²(3x²-6x+4x-8)
=y²(3x(x-2)+4(x-2))
=y²(x-2)(3x+4)

2)
x²-36=x²-6²=(x+6)(x-6)

3 0
3 years ago
Read 2 more answers
Write the expression "N is the same as 6 reduced by 2" as a number sentence.
Wewaii [24]

Answer:

N = 6 - 2

Step-by-step explanation:

Take each part of the word expression and translate it:

"N"   =>  N        ("N" is a variable that represents a number you don't know)

"is the same as"   =>  =       ("the same" means equals)

"6 reduced by 2"   =>  6 - 2          ("reduced" means use subtraction "-")

Put the sentence back together in the same order.

N = 6 - 2

If you wanted to find "N", you can simplify by doing 6 - 2.

N = 4

7 0
3 years ago
I need help please help me please​
zalisa [80]

Answer:

1. < 3
2. < 8
3. < 5
4. < 4
5. < 6
6. < 7
7. < 2
8. < 1
9. < 8

< = Angle

3 0
2 years ago
uses the properties and mental math to solve. Write your answer in simplest form. 2 1/10 + (1 2/7 + 4 9/10)
Elena-2011 [213]
<h2>Hello!</h2>

The answer is: \frac{58}{7}

<h2>Why?</h2>

Since we have mixed numbers, first we need to make it fractions, then we can add/subtract the resultant fractions.

Sum of fractions is not linear, to add/subtract actions we must follow the next steps:

  1. Multiply each fraction denominator by each other, it will be the new fraction denominator.
  2. Multiply first fraction numerator by the second fraction denominator.
  3. Multiply first fraction denominator by the second fraction numerator.
  4. Add/subtract each result from step 2 and 3 to get the new fraction numerator.
  5. Simplify the results.

Therefore,

2\frac{1}{10}=2+\frac{1}{10}=\frac{20+1}{10}=\frac{21}{10}

1\frac{2}{7}=1+\frac{2}{7}=\frac{7+2}{7}=\frac{9}{7}

4\frac{9}{10}=4+\frac{9}{10}=\frac{40+9}{10}=\frac{49}{10}

Now, we have all mixed numbers changed to fractions. Then, we need to add the fractions:

\frac{21}{10} + \frac{9}{7} + \frac{49}{10}=\frac{147+90}{70} +\frac{49}{10}\\\\\frac{237}{70}+\frac{49}{10}=\frac{2370+3430}{700}=\frac{5800}{700}=\frac{58}{7}

Have a nice day!

8 0
3 years ago
Read 2 more answers
F(x)=3x−4g(x)=−x2+2x−5h(x)=2x2+1j(x)=6x2−8xk(x)=3x2−x+7 Calculate (fh)(x).
elena-s [515]

Answer:

( f h ) (x)  = 6 x² - 1

Step-by-step explanation:

<u><em>Step(i)</em></u>:-

Given<em> f(x)   =  3 x - 4</em>

         g (x)  = −x²+2 x−5

      <em>   h (x)  = 2 x² + 1</em>

         j (x)    = 6 x + 2 - 8 x

        K (x)   = 3 x² - x + 7

<u><em>Step(ii)</em></u>:-

<em>( f h ) (x) = f ( h (x)) = f ( 2 x² + 1 )</em>

                            =  3 (2 x² + 1 ) - 4

                            =  3 ((2 x² ) + 3 - 4

                           =   <em>6 x² - 1</em>

<u><em> Final answer:</em></u>-

∴ <em> ( f h ) (x)  = 6 x² - 1</em>

3 0
3 years ago
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