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2 years ago

If n + 2, 5, and 9 represent the lengths of the sides of a triangle then < n

Mathematics

1 answer:

sattari [20]2 years ago

6 0

Answer:

n>2 (see below)

Step-by-step explanation:

Triangle side rule says n+2 + 5 must be greater than 9

n+2 +5 > 9

n > 2

(but it must be less than 12 o/w 5 + 9 will not be greater than n+2)

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A spring has natural length 24 cm. Compare the work W1 done in stretching the spring from 24 cm to 34 cm with the work W2 done i

Scilla [17]

Answer:

From the analysis W1=W2.

they are directly related

Step-by-step explanation:

the work-done in stretching a spring can be expressed as

$W=\frac{1}{2}kx^2$

where k= spring constant

x= change on length of spring

Hence for W1

Given data

x= 34-24= 10 cm

solving in terms of k we have

$W=\frac{1}{2}k*10^2\\\W=\frac{1}{2}k*100\\\W=50k$

Hence for W2

Given data

x= 44-34= 10 cm

solving in terms of k we have

$W=\frac{1}{2}k*10^2\\\ W=\frac{1}{2}k*100\\\ W=50k$

4 0

3 years ago

Jennie can make 7 quilts with 21 yards of material how many yards of material would be required to make 12 quilts ?

larisa [96]

I think it's 36. Because 7x3=21 and 12x3=36

4 0

3 years ago

Simplify these equations 8y+2+3y-5

Alex777 [14]

The answe to this equation is 11y-3

5 0

3 years ago

PLZ HURRY IT'S URGENT!!

DIA [1.3K]

Answer:

42 and 63

Step-by-step explanation:

I think you mean the ratio is 2/3 instead of 23

Then the answer is 42/63 = (2 x 21) / ( 3 x 21) = 2/3

3 0

3 years ago

HURRY!!!!

mestny [16]

I think one is c And 2 I think is a I just use the desmos graphing calculator at desmos.com

4 0

3 years ago