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Paha777 [63]
3 years ago
10

Find the sum of 9 and 20 on number line

Mathematics
1 answer:
Mrrafil [7]3 years ago
7 0

Answer:

29

Step-by-step explanation:

9 + 20

    2 0

    + 9

    2 9

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A certain intelligence test has an N(100, 100) distribution. To see whether intelligence is inherited, tests are given to the el
Anettt [7]

Answer:

Follows are the solution to the given choices:

Step-by-step explanation:

In choice a:

\to \mu = 100

In choice b:

\to \mu \neq 100

In choice c:

\to \ pop  \ average=100 \\\\ \to \ variance \ of \ pop = 100  \\\\\to pop  \ \  \sigma = \sqrt {(!00)} \\

               = 10

z= \frac{\bar x - \mu}{ \frac{\sigma}{\sqrt(n)}}\\\\

   =\frac{(105-100)}{\frac{10}{ \sqrt(16)}}\\\\=\frac{(5)}{ \frac{10}{4}}\\\\=\frac{5}{ \frac{5}{2}}\\\\= \frac{10}{5}\\\\=2

\to p==2\times (1- \ righttail)\\\\\to \ righttail\ \ p = \text{NORM.S.DIST(2,TRUE)}

                        =0.977249868

\therefore \\P=2 \times (1-0.9772)\\\\P=0.0455\\\\P

Null hypothesis to dismiss  

Alternate solution assumptions embrace  

There is really no valid proof at the 5% stage that  

Knowledge is legacy

In choice d:

Possibly information such as this reflect a sample population with such a true p = 0.0455 meaning in the hypothesis  

u is around 100.  

11 +001

7 0
4 years ago
Can u show an example of how to convert a linear equation to standard form for algebra 1 9th grade.
notsponge [240]

Answer:

-4x+y=7

Step-by-step explanation:

lets say you have y=4x+7 (linear equation)

to conver it to standard form you've got to make it Ax+By=C

so you minus the 4x and you should have -4x+y=7 for your standard form

5 0
4 years ago
Just answer plz its 20 points
Deffense [45]

Answer:

x=14.5

Step-by-step explanation:

since we know the sum of a triangles interior angles equal 180, we can subtract 66 from 180

180-66=114

6x-8+2x+6=114 - combine like terms

8x-2=114 - add 2 to both sides

8x=116 - divide by 8

x=14.5

angle a= 79

angle n=35

3 0
3 years ago
HELP I NEED HELP ASAP
cricket20 [7]

Answer:

D) 17x-3

Step-by-step explanation:

25x-8x-3

17x-3

6 0
3 years ago
What is solution to the system of equations? Y=5×+2 3×=-y+10
Sergio [31]
Y = 5x + 2
3x = y + 10

3x = y + 10
3x = 5x + 2 + 10
3x = 5x + 12
3x - 5x = 12
-2x = 12
x = -6

substitute x = -6 into y = 5x + 2

y = 5(-6) + 2
y = -30 + 2
y = -28

x = -6, y = -28

hope this helped, God bless!
4 0
3 years ago
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