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Natali [406]
3 years ago
15

I need help please and thank you :) will mark brainliest if right

Mathematics
1 answer:
natta225 [31]3 years ago
3 0

Answer:

hi

Step-by-step explanation:

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How do you find 2a+b?
ser-zykov [4K]
A = 2/-3  which is -0.6666... 
and b= 1/4. 
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5 0
3 years ago
The function = 3describes the volume of a cube, , in cubic inches, whose length, width, and height each measure inches. Find the
kolezko [41]

The correct structure of the question is as follows:

The function f(x) = x^3 describes a cube's volume, f(x) in cubic inches, whose length, width, and height each measures x inches. If x is changing, find the (instantaneous) rate of change of the volume with respect to x at the moment when x = 3 inches.

Answer:

Step-by-step explanation:

Given that:

f(x) = x^3

Then;

V = x^3

The rate whereby V is changing with respect to time is can be determined by taking the differentiation of V

dV/dx = 3x^2

Now, at the moment when x = 3;

dV/dx = 3(3)^2

dV/dx = 3(9)

dV/dx = 27 cubic inch per inch

Suppose it is at the moment when x = 9

Then;

dV/dx = 3(9)^2

dV/dx = 3(81)

dV/dx = 243 cubic inch per inch

6 0
3 years ago
3 pieces of wood have a total length of 32 m. The second piece is twice the size of the first and the third piece is 2 more mete
andreev551 [17]

Answer:

X + Y + Z = 32

X2 = Y

X3 + 2 = Z

X + X2 + X3 + 2 = 32

Make X alone

There is a 2 so we subtract 2 from both sides

X + X2 + X3 = 30

Add the X's up

X + X2 + X3 = X6

X6 = 30

Divide by 6

30 / 6 = 5

You are left with X=5

The first piece of wood has a length of 5

5 x 2 = 10

The second piece has a value of 10

5 x 3 + 2 = 17

The third piece is 17

Hope this helps. If you have any questions you may ask.

Step-by-step explanation:

5 0
3 years ago
A house costs $600 more than twelve times the lot on which it was built. If the lot cost x dollars, what did the house cost? Whi
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House=600+12lot
lot=x
house=600+12x

answer is first expresion
7 0
3 years ago
Read 2 more answers
Consider a circle whose size can vary. The circumference of the circle is always 2π times as large as its radius. Let r represen
ser-zykov [4K]

Answer:a) C = 2πr

b) 37.68feet

c) r = C/2π

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Step-by-step explanation:

3 0
3 years ago
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