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leva [86]
2 years ago
8

Explain the following types of angles:

Mathematics
1 answer:
ZanzabumX [31]2 years ago
6 0

Answer:

acute angle measure less than 90 degrees, right angle measure 90 degrees, Obtuse angle measure more than 90 degrees, straight angle equal to 180 degrees, reflex angle is an angle greater than 180° and less than 360°, complementary angle either of two angles whose sum is 90°, supplementary angle either of two angles whose sum is 180°

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All 150 eighth grade students at a local middle school were asked how many hours they studied during the week. Each row of the t
DENIUS [597]

Answer:

Row 2

Step-by-step explanation:

To find the mean, we add all the numbers and divide by the number of numbers

Row 1:  

(6+5+3+0+4)/5 = 18/5 = 3.6

Row 2:  

(4+5+3+5+6)/5 = 23/5 = 4.6

Row 3:  

(7+1+4+5+3)/5 = 20/5 = 4.0

Row 4:  

(4+2+5+6+3)/5 = 20/5 = 4.0

The greatest mean , or the largest mean is 4.6  or Row 2

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3 years ago
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Which equation illustrates the multiplicative inverse property?Choose one
soldier1979 [14.2K]
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3 years ago
Y=-3/4x+9<br> y=-1/2x+8<br> x=
Artemon [7]

Answer:

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Step-by-step explanation:

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7 0
2 years ago
I need help please .
Monica [59]

9514 1404 393

Answer:

  A, E

Step-by-step explanation:

Solving for y, the coefficient of x tells us the slope of the given line.

  y = (-x +50)/5

  y = (-1/5)x +10 . . . . . the given line; has a slope of -1/5

The perpendicular line will have a slope that is the opposite reciprocal of this value:

  m = -1/(-1/5) = +5

That is, you want equations for lines that have a slope of +5.

__

As above, the slope is the x-coefficient when the equation is in y = ( ) form. This fact lets us identify A as one good choice, and reject B–D as incorrect choices.

When we divide the equation of E by 5 to put it into the desired form, we have ...

  y = 5x +2.6 . . . has a slope of 5

The equations of interest are ...

  • A.  y = 5x +2
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5 0
3 years ago
A building inspector believes that the percentage of new construction with serious code violations may be even greater than the
Y_Kistochka [10]

Answer:

The inspector's claim has strong statistical evidence.

Step-by-step explanation:

To answer this we have to perform a hypothesis test.

The inspector claimed that the actual proportion of code violations is greater than 0.07, so the null and alternative hypothesis are:

H_0: \pi\leq0.07\\\\H_a: \pi>0.07

We assume a significance level of 0.05.

The sample size is 200 and the proportion of the sample is:

p=\frac{23}{200}= 0.115

The standard deviation is

\sigma=\sqrt{\frac{\pi(1-\pi)}{N} }= \sqrt{\frac{0.07*0.93}{200}}=0.018

The z-value can be calculated as

z=\frac{p-\pi-0.5/N}{\sigma} =\frac{0.115-0.07-0.5/200}{0.018} =\frac{0.0425}{0.018}=2.36

The P-value for this z-value is P=0.00914.

This P-value is smaller than the significance level, so the effect is significant and the null hypothesis is rejected.

The inspector's claim has strong statistical evidence.

7 0
3 years ago
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