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3 years ago

Write an equation for the line passing through (-6,5) And (-6,-4)

1 answer:

4 0

Y=mx+b
All you have to do is plug in your x and y values and for the b you have to find your u-int and m is your slope(your rise over run)... I don’t have any graphing paper right now sooo I can’t really solve it But if you just plug in.. You’ll find the answer quickly

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the circular ripple caused by dropping a stone in a pond is increasing in area at a constant rate of 20 square meters per second

mojhsa [17]

Answer:

2/π ≈ 0.637 m/s

Step-by-step explanation:

The rate of change of area with respect to time is ...

A = πr²

dA/dt = 2πr·dr/dt

Filling in given values in the above equations, we can find r and dr/dt.

25π = πr² ⇒ r = 5

20 = 2π·5·dr/dt

dr/dt = 20/(10π) = 2/π . . . . meters per second

The radius is increasing at the rate of 2/π ≈ 0.637 meters per second.

4 0

3 years ago

Factorize the expression below pls help giving brainliest

vekshin1

Answer:

See answer below

Step-by-step explanation:

2b(2ab)² - a(2b²)² = XaY³(z - b)

$2b(2ab)(2ab) - a(2b^2)(2b^2) = XaY^3(z-b)$

$8a^2b^3 - 4ab^4 = XaY^3(z - b)$

$4ab^3(2a-b) = XaY^3(z - b)$

X = 4

y = b

z = 2a

7 0

2 years ago

Simplify (3a ^2)^ 3

Leya [2.2K]

The answer is 27a^6
Hope this helps.

7 0

3 years ago

Dylan has $20 in a savings account. The interest rate is 5% per year and is not compounded. How much interest will he earn in 1

sergeinik [125]

20x0.5 = 10
He will earn 10 per year

8 0

3 years ago

Either my brain is straight up goneskiis or I need assistance.

olga nikolaevna [1]

The answer is C. 89 in^2

This is found by (1/2( $\pi r^{2}$ ))+70

r in this equation stands for radius which is half the diameter. Sice the diameter equals 7, the radius equals 3.5

You have to solve this by putting it into a calculator since you can't really solve for an equation with pi in it otherwise.

Hope this helps!

4 0

3 years ago