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Greeley [361]
2 years ago
13

Plz plz plz help me its for math

Mathematics
1 answer:
skad [1K]2 years ago
7 0
Letter C is the correct answer
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Q3. In a hydraulic lift, a 1400 N force is applied to a 0.5 m2 piston. Calculate the minimum surface area of the large piston to
blondinia [14]

Answer:

1.8m^2 approx

Step-by-step explanation:

Given data

P1= 1400N

A1=0.5m^2

P2=5000 N

A2=??

Let us apply the formula to calculate the Area A2

P1/A1= P2/A2

substitute

1400/0.5= 5000/A2

cross multiply

1400*A2= 5000*0.5

1400*A2= 2500

A2= 2500/1400

A2= 1.78

Hence the Area is 1.8m^2 approx

3 0
3 years ago
URGENT PLEASE HELP !!!!!
Mumz [18]

Answer:

Let P represent the number of pies sold and J represent the number of juices sold.

a)

The first equation for the sum of the sales:

P + J = 79

P = 79 - J

Next, for the sum of the amounts earned:

1.65P + 1.36J = 118.17

Substituting P,

1.65 (79 - J) + 1.36J = 118.17

J = 42

Using this value of J,

P = 79 - 42

P = 37

b)

Mr. Sanchez's class earned: 1.65 x 37 = $61.05

Mr. Kelly's class earned: 1.36 x 42 = $57.12

So Mr. Sanchez's class earned more money.

c) Mr. Sanchez's class earned:

61.05 - 57.12

= $3.93 more than Mr. Kelly's class

Step-by-step explanation:

:)

4 0
3 years ago
Find dy/dx | x=-2, given that y=4+4x^2<br><br> Dy/dx| x=-2 =
-Dominant- [34]
Hmmmmmmmmmmmmmmmmmmmmmmmmm
7 0
2 years ago
Read 2 more answers
Which postulate or theorem proves that △ RNM and △ QNP are congruent?
Zigmanuir [339]
SAS since ∠RNM is congruent ∠PNQ by vertical angles which will give you the angle you need for SAS.
7 0
3 years ago
Read 2 more answers
I need help fast thank you
kondor19780726 [428]

Answer:

RO = 39.5

Step-by-step explanation:

RO/9 = 57/13

13RO = 513

RO = 513/13

RO = 39.46

5 0
2 years ago
Read 2 more answers
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