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2 years ago

Help please !! I have school in an hour

Mathematics

1 answer:

Roman55 [17]2 years ago

6 0

Answer:

0.25

Step-by-step explanation:

the unit rate in this case is the cost per line, you decide 2.00 by 8

2.00/8=0.25

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Use distributive property to write an expression that is equivalent to 6(u+12)

nirvana33 [79]

Answer:

6u + 72

Step-by-step explanation:

6(u + 12)

Distribute 6 to u and 12

6(u) + 6(12)

6u + 72

6 0

2 years ago

What is the perimeter, P, of a rectangle that has a length of x + 6 and a width of y - 1?

Mekhanik [1.2K]

Answer: P = 2x + 2y + 10

Step-by-step explanation: The perimeter (P) of a rectangle is given as

P = 2L + 2W

By factorizing the right hand side of the equation we now have

P = 2(L + W)

However, the length of the rectangle is given as x + 6 and the width is given as y - 1

If P = 2(L + W), then

P = 2(x + 6 + {y - 1} )

P = 2(x + 6 + y -1)

P = 2(x + y + 5)

After expanding the bracket, we now have

P = 2x + 2y + 10

5 0

3 years ago

Read 2 more answers

A triangular prism has a base that is 6 cm by 4 cm and a height of 8 cm. If all dimensions are tripled, what happens to the volu

lana [24]

Im assuming the base of the triangle is 4cm. The volume is $96cm^{3}$ .
If the dimensions are tripled, the base is 12, the height is 24, and the length is 18. The volume is $2592cm^{3}$ , which is 27 times bigger.
If you are increasing each side by a factor of x, you are multiplying the original by $x^{3}$

3 0

2 years ago

Read 2 more answers

The length of a rectangle is 3 times the

sweet-ann [11.9K]

Answer:L= 3W

Perimeter = 2(l+w) = 40

2(3w+w) = 40

2*4w = 40

8w =40

w = 5

l = 3*5 = 15

Hope I helped

5 0

2 years ago

Evaluate the integral using integration by parts with the indicated choices of u and dv. (use c for the constant of integration.

Zolol [24]

Answer:

(7/3) x^3 ln x - (7/9) x^3 + c.

Step-by-step explanation:

∫udv = uv - ∫vdu

u = ln x and dv = 7x^2dx so,

du = 1/x and v = 7x^3/3 so:

∫7x^2 ln x = (7x^3/3) ln x - 7 ∫x^3/3 * 1/x dx

= 7/3 x^3 ln x - 7 ∫x^2/3 dx

= 7/3 x^3 ln x - 7/x^3/2 * 1/3 dx

= 7/3 x^3 ln x - 7/9 x^3 + c.

4 0

1 year ago