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3 years ago

Please helpp meeee!!!

Mathematics

1 answer:

Law Incorporation [45]3 years ago

5 0

Answer:

im pretty sure the answer would be,

$2 \frac{1}{2}$

Step-by-step explanation:

the median is the middle number of the data, and since there are two medians, you find the mean of the two numbers by adding them together, and then you divide it by 2.

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8 less than a number n is less than 11

iragen [17]

In mathematical form, it would be:

n-8 < 11

add 8 from both sides,

n-8+8 < 11+8

n < 19

So, n value must be less than 19

Hope this helps!

8 0

3 years ago

Please help me on 7EE thanks:)

Grace [21]

The answer is y=35+1.25x

8 0

3 years ago

Find the solution set.2x^2+3x=2 separate the two values with a comma.

inna [77]

Answer:

x = -2, 1/2

Step-by-step explanation:

Step 1: Isolate everything to 1 side

2x² + 3x - 2 = 0

Step 2: Factor

(2x - 1)(x + 2) = 0

Step 3: Find roots

2x - 1 = 0

2x = 1

x = 1/2

x + 2 = 0

x = -2

5 0

3 years ago

A hydraulic lift is to be used to lift a 2000-kg weight by putting a weight of 25 kg on a piston with a diameter of 10 cm. Deter

grigory [225]

Answer:

88 centimeters is the diameter of the cilinder

Step-by-step explanation:

The pressure on both ends of the lift must be the same. Assuming the piston is cilindrical, its area will be A=π*r² where r is half the diameter

Since pressure P=F/A And P1=P2

F1=2000kg.g

A1=π*r²

F2=25kg.g

A2=π*0.05²

2000/(π*r²)=25/(π*0.05²)

and we solve for A1

r²=2000*0.05²/25

$r=\sqrt{\frac{2000*0.05^2}{25}}$

r= $\sqrt{5}$ 20*0.05/5=0.44m or 44cm

This is the radius, meaning that the diameter will be twice this number

6 0

3 years ago

Read 2 more answers

Edwin runs two laps in 12 minutes.

blagie [28]

Answer:6 minutes a lap

for 3 laps = 18

Step-by-step explanation:

12/2 = 6

6 times 3 = 18

8 0

3 years ago

Read 2 more answers