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3 years ago

HELPPP !!! (20 points) , I’ll give you brainlist !!! here’s the question :

Mathematics

2 answers:

scoundrel [369]3 years ago

5 0

Answer:

weight times spring length

Step-by-step explanation:

weight times spring length

SSSSS [86.1K]3 years ago

5 0

Answer:

at w=0------Li =10

at w=10------L=15

L=Li+w×k---------(1)

k is constant of spring

go to (1) by using value of w , Li &L to calculat k

15 = 10+k×10

k=0.5

L=10+0.5*w

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3 years ago

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Rina8888 [55]

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2 years ago

Al find a new supplier. He can buy raw peanuts for $.30 for a pound. If he sells the peanuts in a .2-pound bags for $2.50 a bag,

Fofino [41]

Answer:

$1.9

Step-by-step explanation:

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3 years ago

Graph the image of the given triangle after a rotation of 180º about the origin.

aleksandrvk [35]

Answer:

(1,-1) (5,-4) (-2,6)

Step-by-step explanation:

The triangle will be rotated to 180 degrees which means you need this formula to point all the corners of the triangle…

Formula:

(x,y) —> (-x,-y)

(-1,1) —> (1,-1)

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Plot these point…

(1,-1) (5,-4) (-2,6)

3 0

2 years ago

Which coordinate pairs make the equation x-9y=12 true?

asambeis [7]

Answer:

(12,0) and (3, -1) and (0,-4/3)

Step-by-step explanation:

To find if a point makes an equation true, just substitute its x and y values in in the equation and simplify.

1) Let's test the point (12,0). Substitute 12 for x and 0 for y in the equation:

$x-9y=12\\(12)-9(0)=12\\12-0=12\\12=12$

12 does equal 12, so (12,0) makes the equation true.

2) Let's test the point (0, 12). Substitute 0 for x and 12 for y in the equation:

$x-9y=12\\(0)-9(12) = 12\\0-108 = 12\\-108 = 12$

However, -108 does not equal 12, so (0,12) does not make the equation true.

3) Let's test the point (3, -1). Substitute 3 for x and -1 for y in the equation:

$x-9y=12\\(3)-9(-1) = 12\\3 + 9 = 12\\12 = 12$

12 does equal 12, so (3, -1) makes the equation true.

4) Let's test the point (0, -4/3). Substitute 0 for x and -4/3 for y in the equation:

$(0) -9(-\frac{4}{3} ) = 12\\0 + \frac{36}{3} = 12\\0 + 12 = 12 \\12 = 12$

12 does equal 12, so (0, -4/3) makes the equation true.

8 0

4 years ago