I’m not good at this.. HELP PLEASE

Mathematics

1 answer:

Akimi4 [234]3 years ago

8 0

Hiya!

You're just drawing lines, step by step.

For example, in a.), you are drawing a ray, starting at point A' through point O'. Use a ruler so that it's three times the length of A' and O'.

Do this for each step :)

You might be interested in

Please solve this question. It's about inverse matrix. ASAP!!

sweet-ann [11.9K]

Answer:

Step-by-step explanation:

$A=\begin{bmatrix}2&3\\4&7\end{bmatrix}\\\\A^{-1} =\begin{bmatrix} \dfrac{7}{2} & \dfrac{-3} {2}\\-2&1 \end{bmatrix}\\\\A*A^{-1}=1\pi_2=T\\\\A^2+3T=\begin{bmatrix} 14&27\\36&61 \end{bmatrix}+\begin{bmatrix} 1&0\\0&1 \end{bmatrix}=\begin{bmatrix} 17&27\\36&64 \end{bmatrix}$

4 0

2 years ago

Find the slope of the line through the pair of points: (5, 20) and (4, -17)

aliya0001 [1]

Answer:

m (slope) = 37

Step-by-step explanation:

use the slope-line formula, y2 - y1/x2 - x1

put in coordinates (5, 20) for x1 and y1

put in coordinates (4, -17) for x2 and y2

simplify

8 0

3 years ago

Read 2 more answers

E and f are supplementary. the measure of e is 54 more than the measure of f. find the measures of each angle.

Katen [24]

Supplementary means they add up to 180

X + 54 = 180

180-54= x

X = 126

126+54=180?

Yep

So your answer is

126

6 0

3 years ago

Which equation represents the graphed function?

Tasya [4]

Answer: y= -2x + 3

Step-by-step explanation:

6 0

3 years ago

The distribution of the average amount of sleep per night gotten by college students is roughly bell-shaped with mean 412 minute

kirza4 [7]

Answer:

$P(X$

$P(z$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the scores of a population, and for this case we know the distribution for X is given by:

$X \sim N(412,68)$