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3 years ago

Find the distance between points P(8, 2) and Q(3, 8) to the nearest tenth

Mathematics

1 answer:

olga nikolaevna [1]3 years ago

4 0

(11/2 , 5) sorry if im wrong im not too sure

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May I also have help with this question

KATRIN_1 [288]

The independent variable (the one they want) is the # of hours worked, since that determines the price.

All the other answers contain information not included in the problem

5 0

3 years ago

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How do I solve 300x300=

UNO [17]

Answer:

its 90,000

Step-by-step explanation:

just put the zeros together then multiply 3x3

5 0

3 years ago

Find the values of x and y

julsineya [31]

Answer:

y = 70 degrees

x = 11

Step-by-step explanation:

The side opposite x + 2 is equivalent so they will both be equal to 13.

To get the meaning of x, simply subtract 2 from 13 giving you x = 11.

Y is across from corner C, which is 70 degrees. These angles are equivalent to each other, meaning that angle y is also 70 degrees.

Hope this helps you :)

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3 years ago

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A certain test preparation course is designed to help students improve their scores on the LSAT exam. A mock exam is given at th

OlgaM077 [116]

Answer:

Interval [16.34 , 21.43]

Step-by-step explanation:

First step. <u>Calculate the mean</u>

$\bar X=\frac{(23+18+23+12+13+23)}{6}=18.666$

Second step. <u>Calculate the standard deviation</u>

$\sigma =\sqrt{\frac{(23-18.666)^2+(18-18.666)^2+(23-18.666)^2+(12-18.666)^2+(13-18.666)^2+(23-18.666)^2}{6}}$

$\sigma=\sqrt\frac{18.783+0.443+18.783+44.435+5.666+18.783}{6}$

$\sigma=\sqrt{17.815}=4.22$

As the number of data is less than 30, we must use the t-table to find the interval of confidence.

We have 6 observations, our level of confidence DF is then 6-1=5 and we want our area A to be 80% (0.08).

We must then choose t = 1.476 (see attachment)

Now, we use the formula that gives us the end points of the required interval

$\bar X \pm t\frac{\sigma}{\sqrt n}$

where n is the number of observations.

The extremes of the interval are then, rounded to the nearest hundreth, 16.34 and 21.43

6 0

3 years ago

Which expression is equivalent to 4.4.4.4.4.4.4.4?

seraphim [82]

Answer:

your answer is D

Step-by-step explanation:

hope this helps

8 0

3 years ago

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