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7nadin3 [17]
3 years ago
11

Point A has coordinates (7,2). Point B has coordinates (2,-10). Find the coordinates of point P that partition AB in the ratio o

f 5:1

Mathematics
2 answers:
aleksklad [387]3 years ago
4 0
You have to use section formula for internal division.

garik1379 [7]3 years ago
4 0

Answer:

(\frac{17}{6},-8).

Step-by-step explanation:

We have been given that point A has coordinates (7,2). Point B has coordinates (2,-10). We are asked to find the coordinates of point P that partition AB in the ratio of 5:1.

We will use segment formula to solve our given problem.

When a point M divides a segment internally in ratio m:n, the coordinates of point M are:

[x=\frac{mx_2+nx_1}{m+n},y=\frac{my_2+ny_1}{m+n}]

[x=\frac{5*2+1*7}{5+1},y=\frac{5*(-10)+1*2}{5+1}]

[x=\frac{10+7}{6},y=\frac{-50+2}{6}]

[x=\frac{17}{6},y=\frac{-48}{6}]

[x=\frac{17}{6},y=-8]

Therefore, the coordinates of point P would be (\frac{17}{6},-8).

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Need help ASAP please
Yuliya22 [10]

Answer:

$2.20

Step-by-step explanation:

180÷48= 3.75

5.95-3.75= 2.20

8 0
3 years ago
Select the most accurate statement regarding the normal distribution. Group of answer choices It is always the appropriate distr
PSYCHO15rus [73]

Answer:

There is a 95% chance that values will be within ±2 standard deviations of the mean.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

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

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

Approximately 95% of the measures are within 2 standard deviations of the mean.

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

In this question:

According to the empirical rule, 95% of the measures are within 2 standard deviations of the mean. So the correct statement is:

There is a 95% chance that values will be within ±2 standard deviations of the mean.

4 0
3 years ago
A container shaped as a rectangular prism can hold 840 wooden cube blocks with edge lengths of
asambeis [7]
First, fidn the volume of the little cubes that the rectangular prism can hold instide of itself. The formula for volume is length x width x height. This means you have to multiply 1/2 x 1/2 x 1/2. 1/2 x 1/2 x 1/2 = 1/8. Now, since the rectangular prism can hold 840 of these cubes, you need to multiply each cube's volume, 1/8, by 840. 1/8 x 840 = 105.

Your answer should be: 105 ft.^3
4 0
3 years ago
Read 2 more answers
The standard form of the equation of a parabola is y= x2 - 8x + 29.
fomenos

Answer:

A

Step-by-step explanation:

Put brackets around the first two tems.

y = (x^2 - 8x) + 29

Take 1/2 coefficient of the linear term -8. Square that result. Add it inside the brackets.

1/2 (- 8) = - 4

(- 4)^2 = 16

y = (x^2 - 8x + 16) + 29

Subtract 16 outside the brackets.

y = (x^2 - 8x + 16) + 29 - 16  

Do the subtraction

y = (x^2 - 8x + 16) + 13

Represent what is inside the brackets as a square.

y = ( x - 4)^2 + 13

The answer is A

7 0
3 years ago
In 1940 you could buy a soda for 5 cents. Today the average cost of the same size soda is $1.25. What is the percent of increase
svlad2 [7]

Answer:

2400%

Step-by-step explanation:

7 0
3 years ago
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