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3 years ago

What is the change in elevation from 134 feet below sea level to 29 feet above sea level.

Mathematics

2 answers:

blagie [28]3 years ago

5 0

134 + 29 = 163

the answer is the change in elevation is +163

DONT FORGET THE PLUS SYMBOL!

amm18123 years ago

5 0

Answer:

naniiiiiiiiiiiiiiiiiiiiiii

Step-by-step explanation:

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B is the midpoint of segment AC trying to find AB using the definition of midpoint.

Kipish [7]

Answer:

Step-by-step explanation:

A midpoint of a line means that each segment connecting from the midpoint to an end is equal. For this problem, this means that AB = BC, as B is the midpoint, and A and B are the ends. Therefore, we can say that:

AB = BC

2x + 6 = 5x - 3

add 3 to both sides

2x + 9 = 5x

subtract 2x from both sides

9 = 3x

divide both sides by 3

3 = x

Plugging 3=x into AB, this means that 2(3) + 6 = AB = 12

3 0

3 years ago

How many times does 3 go into 136 mixed fraction

lys-0071 [83]

Answer:

14 times

Step-by-step explanation:

8 0

3 years ago

A researcher wants to construct a 90% confidence interval for the proportion of elementary school students in Seward County who

dezoksy [38]

Answer:

The sample size is $n =68$

Step-by-step explanation:

The population proportion is $\^ p = 0.50$

The margin of error is $E = 0.1$

From the question we are told the confidence level is 90% , hence the level of significance is

$\alpha = (100 - 90 ) \%$

=> $\alpha = 0.10$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 1.645$

Generally the sample size is mathematically represented as

$n = [\frac{Z_{\frac{\alpha }{2} }}{E} ]^2 * \^ p (1 - \^ p )$

=> $n = [\frac{1.645 }{0.1} ]^2 * 0.50 (1 - 0.50 )$

=> $n =68$

6 0

3 years ago

Rays QR and QS are tangents to circle P at R and S. If Q measures to 54°, find RS

Ainat [17]

Answer: $126^{\circ}$

Step-by-step explanation:

If we draw RP and PS, then in the quadrilateral formed, we know that $\angle PRQ=\angle PSQ=90^{\circ}$ , and since angles in a quadrilateral add to 360 degrees, this means $\angle SPR=126^{\circ}$ .

Thus, arc RS also measures 126 degrees

8 0

2 years ago

What is 23/1 divided by 9/2

hoa [83]

$\frac{\frac{23}{1}}{\frac{9}{2}}=\ \ \ \ | multiply\ first\ fration\ by\ inverse\ of\ the\ second\\\\
\frac{23}{1}*\frac{2}{9}=\frac{46}{9}=5\frac{1}{9}\\\\
Solution\ is\ 5\frac{1}{9}.$

3 0

3 years ago