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3 years ago

Will give brainliest! number 4 it’s the pythagorean theorem

Mathematics

2 answers:

vichka [17]3 years ago

7 0

X = 10.72 (not sure if its completely right)

25^2 - 16^2 = 369
sqrt369 = 19.21
22^2 - 19.21^2 = 114.98
sqrt114.98 = 10.72

snow_tiger [21]3 years ago

7 0

Ok so Here is the answer

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What is the product of 0.2*7

Sveta_85 [38]

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1.4

Step-by-step explanation:

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3 years ago

A car is traveling at a rate of 10 meters per second in a 20-mile-per-hour speed limit zone.

Elena-2011 [213]

22.3694

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3 years ago

If r and s are positive integers, is \small \frac{r}{s} an integer? (1) Every factor of s is also a factor of r. (2) Every prime

Yuri [45]

Answer:

If statement(1) holds true, it is correct that $\small \frac{r}{s}$ is an integer.

If statement(2) holds true, it is not necessarily correct that $\small \frac{r}{s}$ is an integer.

Step-by-step explanation:

Given two positive integers $r$ and $s$ .

To check whether $\small \frac{r}{s}$ is an integer:

Condition (1):

Every factor of $s$ is also a factor of $r$ .

$r \geq s$

Let us consider an example:

$s = 5^2 \cdot 2\\r = 5^3 \cdot 2^2$

$\dfrac{r}{s} = \dfrac{5^3\cdot2^2}{5^2\cdot2} = 10$

which is an integer.

Actually, in this situation $s$ is a factor of $r$ .

Condition 2:

Every prime factor of s is also a prime factor of r.

(But the powers of prime factors need not be equal as we are not given the conditions related to powers of prime factors.)

Let

$r = 2^2\cdot 5\\s =2^4\cdot 5$

$\dfrac{r}{s} = \dfrac{2^3\cdot5}{2^4\cdot5} = \dfrac{1}{2}$

which is not an integer.

So, the answer is:

If statement(1) holds true, it is correct that $\small \frac{r}{s}$ is an integer.

If statement(2) holds true, it is not necessarily correct that $\small \frac{r}{s}$ is an integer.

8 0

4 years ago

Can anyone help me with the question I attached below?

attashe74 [19]

Answer:

The range in the average rate of change in temperature of the substance is from a low temperature of -22 ºF to a high of 16 ºF.

Step-by-step explanation:

Sine function is a bounded function whose range is between -1 and 1. The lowest average rate of change in temperature occurs when sine function is equal to 1 and the highest when this function is equal to -1. Then, the minimum and maximum average rate of changes in temperature are:

Minimum

$f_{min} = -19 -3$

$f_{min} = -22$

Maximum

$f_{max} = 19-3$

$f_{max} = 16$

The range in the average rate of change in temperature of the substance is from a low temperature of -22 ºF to a high of 16 ºF.

5 0

3 years ago