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2 years ago

The length of a spring varies directly with the mass of an object that is attached to it. When a 30-gram object is attached,

Mathematics

1 answer:

vladimir2022 [97]2 years ago

3 0

Answer:

s = 0.3m

Step-by-step explanation:

Given that s varies directly with m then the equation relating them is

s = km ← k is the constant of variation

To find k use the condition

s = 9 when m = 30

9 = 30k ( divide both sides by 30 )

$\frac{9}{30}$ = k

s = $\frac{9}{30}$ m or

s = 0.3m ← equation of variation

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Two airplanes, which start 3{,}3003,3003, comma, 300 miles apart, fly toward each other. The two planes fly at a constant speed,

castortr0y [4]

Answer:

distance=rate*time

2520=(r)(3)+(r+90)(3) (they both travel for 3 hours)

2520=3r+3r+270

2520-270=6r

2250=6r

r=2250/6

r=375 mph

r+90=375+90=465 mph

Step-by-step explanation:

4 0

2 years ago

2 Points

Mashcka [7]

Answer:

C. It would be shifted up.

Step-by-step explanation:

We base it off the y-intercept. Since -7 is less than 1, and our new function has a positive y-intercept, it would indeed be shifted up.

I am joyous to assist you anytime.

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2 years ago

What is 8v+w+7−8v+2w

Bingel [31]

Answer:

3w+7

Step-by-step explanation:

Let's simplify step-by-step.

8v+w+7−8v+2w

=8v+w+7+−8v+2w

Combine Like Terms:

=8v+w+7+−8v+2w

=(8v+−8v)+(w+2w)+(7)

=3w+7

3 0

2 years ago

If sin θ=4/5 and 90°<θ<180°, what is cos θ?

34kurt

Answer:

Cos ∅ = 3/5

BUT COSINE IS NEGATIVE IN THE SECOND QUADRANT.

Thus cos∅= -3/5

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2 years ago

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RoseWind [281]

Answer:

The answer is D

Step-by-step explanation:

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