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3 years ago

Can someone help pls

Mathematics

2 answers:

bulgar [2K]3 years ago

8 0

Hope it's helpful ❤❤❤❤❤❤❤❤

THANK YOU.

Travka [436]3 years ago

5 0

Answer: V = 706.5 cubic millimeters

Step-by-step explanation:

V = (3.14)(r^2)(h)

V = (3.14)(5^2)(9)

V = (3.14)(25)(9)

V = 706.5

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Help please! Work do be a struggle tho

beks73 [17]

Answer:

$h = \dfrac{S}{2 \pi r} - r$

Step-by-step explanation:

$S = 2 \pi rh + 2 \pi r^2$

$2 \pi rh + 2 \pi r^2 = S$

$2 \pi rh = S - 2 \pi r^2$

$h = \dfrac{S}{2 \pi r} - \dfrac{2 \pi r^2}{2 \pi r}$

$h = \dfrac{S}{2 \pi r} - r$

8 0

4 years ago

Find the measure of the third angle of a triangle given the measure of two angles are 63º and 22º.

Alexxandr [17]

180=63+22+x
x=180-63-22
x=95°

8 0

4 years ago

As mush as you can 10 points

kotykmax [81]

24)you add 5a with 5a and then 6 and 4 an and your answer will be -11 -(10a+10)

6 0

3 years ago

Read 2 more answers

The mean and the standard deviation of the sampled population are 225.8and 17.8 respectively. What is the mean and standard devi

xxMikexx [17]

Answer:

Mean and standard deviation of the sample mean are 225.8 and 3.56 respectively.

Step-by-step explanation:

The mean (μₓ) and standard deviation of the sample mean (σₓ) are related to the mean (μ) and standard deviation of the population (σ) through the following relationship

μₓ = μ = 225.8

σₓ = σ/√n = 17.8/√25 = 17.8/5 = 3.56

7 0

3 years ago

What is the difference in speed between two cars when one traveled 175 km in 4 hours and the other traveled the same distance in

vovangra [49]

<h3>Given :</h3>

Distance = 175
Time 1 = 4 hours

$\\ \\$

Different between two speeds when distance is same.

$\\ \\$

<h3>Solution:</h3>

In first part we will find speed 1 in which time is 4 hours

we know:-

$\bigstar \boxed{ \rm speed = \frac{distance}{time} }$

So:-

$\dashrightarrow\sf speed_1 = \dfrac{distance}{time_1}$

$\\ \\$

$\dashrightarrow\sf speed_1 = \dfrac{175}{4}$

$\\ \\$

$\dashrightarrow\bf speed_1 = 43.75 \: km {h}^{ - 1}$

In first part we will find speed 2 in which time is 3 hours

Again:

$\bigstar \boxed{ \rm speed = \frac{distance}{time} }$

$\\ \\$

$\dashrightarrow\sf speed_2 = \dfrac{distance}{time_2}$

$\\ \\$

$\dashrightarrow\sf speed_2 = \dfrac{175}{3}$

$\\ \\$

$\dashrightarrow\bf speed_2 = 58.33kmh^{-1}$

$\\ \\$

In this part we will find different between speed 1 and speed 2

$\bigstar \boxed{\rm Difference = speed_2 - speed_1}$

$\\ \\$

So :

$\dashrightarrow\sf Difference = speed_2 - speed_1 \\$

$\\ \\$

$\dashrightarrow\sf Difference =58.33 - 43.75\\$

$\\ \\$

$\dashrightarrow\bf Difference =14.58kmh^{-1}\\$

$\\ \\$

$\therefore \underline {\textsf{\textbf{Difference in speed between two cars is \red{14.58km/h}}}}$

4 0

3 years ago