All categories

3 years ago

Help me plz you will get 20 points

Mathematics

2 answers:

KatRina [158]3 years ago

5 0

For mph my answer was number 3 and for hpm its 2

HACTEHA [7]3 years ago

3 0

Yhehwhsgsggehejekekem dbdbskosisyafw ensued

You might be interested in

Find the total force on a piston of diameter 3.25 in., if the pressure (P) exerted on it is 150 lb/sq.In. Use 3.14 for and round

skelet666 [1.2K]

Answer:

1244 Ibf(Pounds force)

Step-by-step explanation:

The formula for Total force on a piston when given the diameter of the bore area =

F = P × π × d²/4

P = 150 lb/sq.In

π = 3.14

d = 3.25 in

Hence,

F = 150 lb/sq.In × 3.14 × 3.25 in /4

= 4974.9375 ÷ 4

= 1243.734375 Ibf(Pounds force)

Approximately = 1244 Ibf(Pounds force)

6 0

3 years ago

Can someone help me on this questionnnn no fake answers please!

Rufina [12.5K]

Answer:

You have to show me the selections so I can help you :)

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

(Hypothetical.) Suppose five measurements of the volume of a liquid yield the following data (in milliliters).

Digiron [165]

Answer:

The 95% confidence interval for the measurements is [48.106, 53.494].

Step-by-step explanation:

The average M of this sample is

$M=\dfrac{1}{5}\sum_{i=1}^5x_i=\dfrac{1}{5}(52+48+49+52+53)\\\\\\M=\dfrac{254}{5}=50.800$

The standard deviation s of this sample is

$s=\sqrt{\dfrac{1}{(n-1)}\sum_{i=1}^5(x_i-M)^2}$

$s=\sqrt{\dfrac{1}{4}\cdot [(52-50.8)^2+(48-50.8)^2+(49-50.8)^2+(52-50.8)^2+(53-50.8)^2]}$

$s=\sqrt{\dfrac{1}{4}\cdot [(1.44)+(7.84)+(3.24)+(1.44)+(4.84)]}=\sqrt{\dfrac{18.8}{4}}=\sqrt{4.7}\\\\\\s=2.168$

The degrees of freedom are

$df=n-1=5-1=4$

Then, the critical value of t for a 95% CI and 4 degrees of freedom is t=2.776.

The margin of error of the CI is:

$E=t\cdot s/\sqrt{n}=2.776\cdot 2.17/\sqrt{5}=6.024/2.236=2.694$

Then, the lower and upper bounds of the CI are:

$LL=50.800-2.694=48.106\\\\UL=50.800+2.694=53.494$

The 95% confidence interval for the measurements is [48.106, 53.494].

4 0

4 years ago

What numbers multiply together to make 1120 but add to be -148

fenix001 [56]

Answer:

-140 and -8.

Step-by-step explanation:

-140 x -8 = 1,120.
-140 + -8 = -148.

These are all of the steps to completely and correctly solve this question.

Hope this helps!!!

Kyle.

8 0

3 years ago

Read 2 more answers

Which of the following is the equation of a line parallel to the line y = -x + 1, passing through the point (4,1)?

vodomira [7]

The equation is y=-x+5

4 0

4 years ago

Read 2 more answers