3 years ago

Help please!!!!!!!!!

Mathematics

1 answer:

Dominik [7]3 years ago

7 0

Number two:two thirds equals eight twelfths

Number six:ten fifthteenths or two thirds

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Please help me with this math problem, urgent please

djverab [1.8K]

problem decoded dude

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3 years ago

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Recall the chapter example which described the fact that the mean IQ in large, diverse populations is 100 and the standard devia

vova2212 [387]

Answer:

The margin of error for the 99% confidence level for this sample is ±2.23.

None of the given figures is close to the answer:

E. None of the above

Step-by-step explanation:

margin of error (ME) around the mean can be calculated using the formula

ME= $\frac{z*s}{\sqrt{N} }$ where

z is the corresponding statistic of the 99% confidence level (2.576)

s is the population IQ standard deviation (15)

N is the sample size (300)

Using these numbers we get:

ME= $\frac{2.576*15}{\sqrt{300} }$ ≈ 2.23

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3 years ago

Lines

xeze [42]

Answer:

x=27, y=18

Step-by-step explanation:

Angle CB is 128, which means angle AC is 72. We can confirm angle O is also 72, since the lines are straight. Angle AM is 27, because AN is a right angle. 63+72+27= 162 180-162=18 Angle ND is 18.

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3 years ago

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On the grid, draw the line with<br> the equation x = -4

nexus9112 [7]

Answer:

Step-by-step explanation:

On a grid,

go to the middle, aka 0,0

move left 4 times, but stay on the same line. Then draw that line up and down on the -4 of x.

sorry if this isn't clear

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State the domain and range of the function: <br> y = -(x+8)^2 +9

Tanya [424]

Domain: All real numbers (-infinity, infinity)

Range: [9, -infinity)

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3 years ago