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3 years ago

PLEASE PLEASE PLEASE HELP GEOMETRY QUIZ IS TIMED

Mathematics

1 answer:

just olya [345]3 years ago

6 0

Answer:

By using rules of triangle angles i found that x= 26°

Step-by-step explanation:

i used the rule that the interior angles of any triangle equal 180°

If we take the triangle which contains x, 28, 36, and 90 (the square in the corner idicates its a 90° angle) we can use the rule that the interior angles of any triangle equal 180. 36 + 90 gives 126 and x and 28 make up the same angle. 180-126 gives 54 meaning x and 28° add up to 54

54-28=26

x=26°

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1. SOLVE THE EQUATION BELOW

Gemiola [76]

Answer:

D F/a =m Mrs Kaulter

Step-by-step explanation:

F = ma

Divide each side by a

F/a = ma/a

F/a =m

5 0

3 years ago

A population has the following characteristics.(a) A total of 25% of the population survives the first year. Of that 25%, 75% su

zaharov [31]

Answer:

After 1st year, the age distribution will be

$x_1 = \left[\begin{array}{ccc}1584\\36\\108\end{array}\right]$

After 2nd year, the age distribution will be

$x_2 = \left[\begin{array}{ccc}5256\\396\\27\end{array}\right]$

Step-by-step explanation:

A population has the following characteristics.

A total of 25% of the population survives the first year. Of that 25%, 75% survives the second year.

The average number of offspring for each member of the population is 3 the first year, 5 the second year, and 3 the third year.

From the above information, we can construct a transition age matrix.

$A = \left[\begin{array}{ccc}3&5&3\\0.25&0&0\\0&0.75&0\end{array}\right]$

The population now consists of 144 members in each of the three age classes.

From the above information, we can construct the current age matrix.

$x = \left[\begin{array}{ccc}144\\144\\144\end{array}\right]$

How many members will there be in each age class in 1 year?

After 1st year, the age distribution will be

$x_1 = A \cdot x$

$x_1 = \left[\begin{array}{ccc}3&5&3\\0.25&0&0\\0&0.75&0\end{array}\right] \times \left[\begin{array}{ccc}144\\144\\144\end{array}\right]$

The matrix multiplication is possible since the number of columns of first matrix is equal to the number of rows of second matrix.

$x_1 = \left[\begin{array}{ccc}1584\\36\\108\end{array}\right]$

After 2nd year, the age distribution will be

$x_2 = A \cdot x_1$

$x_2 = \left[\begin{array}{ccc}3&5&3\\0.25&0&0\\0&0.75&0\end{array}\right] \times \left[\begin{array}{ccc}1584\\36\\108\end{array}\right]$

$x_2 = \left[\begin{array}{ccc}5256\\396\\27\end{array}\right]$

4 0

4 years ago

The weights of Twinkies are Normally distributed with a mean of 1.5 ounces and a standard deviation of 0.1 ounces. a) The middle

tensa zangetsu [6.8K]

Answer:

The middle 99.7% of Twinkies weigh between approximately 1.2 and 1.8 ounces.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 1.5

Standard deviation = 0.1

middle 99.7%

Within 3 standard deviations of the mean, so

1.5 - 3*0.1 = 1.2

1.5 + 3*0.1 = 1.8

So the answer is:

The middle 99.7% of Twinkies weigh between approximately 1.2 and 1.8 ounces.

8 0

3 years ago

-11v-8+3v=24<br><br>What is v?

ella [17]

-11v + 3v = -8v

-8 = 24, 24 + 8 = 32

-8v/ -8 = 32/-8

v = -4

hope this helps

6 0

3 years ago

Read 2 more answers

True or False

OlgaM077 [116]

Answer:

true

depending on how complete the table of values is.

5 0

2 years ago