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Marizza181 [45]
3 years ago
12

Which expression is equivalent to 16+2·36?

Mathematics
1 answer:
nikklg [1K]3 years ago
4 0

Answer:

4(3 + 2x)(-3 + 2x)

Step-by-step explanation:

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Which group shows 0.25 of the faces smiling?
Ivahew [28]

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My dude the groul that shows that tiny bit of smiling must be the beatles or backstreet boys

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What is the value of x ?????
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9. A rectangle has a length 2 ft less than three times its width. What is the area of the rectangle when its
Burka [1]

Answer:

Area = 8 square ft

Step-by-step explanation:

Area of a rectangle = Length × width

suppose length = x

width  = y

Here it is given that  x = 3 y - 2

             width is given as y = 2 ft

            ∴ x = 3 × 2 -2

              x = 6 -2

              x = 4

 Area of rectangle = length × width

                              A = 4 × 2

                                 = 8 square ft

4 0
3 years ago
2. What is the value of x? Show your work.
viktelen [127]

Answer:

7

Step-by-step explanation:

→ Find the scale factor

30 ÷ 25 = 1.2

→ Multiply answer by 20

20 × 1.2 = 24

→ Equate equation to 24

4x - 4 = 24

→ Add 4 to both sides

4x = 28

→ Divide both sides by 4

x = 7

5 0
2 years ago
Evaluate the intergal F•dr where F (x,y,z)=xyi+yzj+zxk and c is the twisted cubic given by x=t, y=t^2 ,z=t^3, 0<=t=<1
iogann1982 [59]

The integral can be evaluated by substituting everything you know:

\displaystyle\int_C\mathbf F\cdot\mathrm d\mathbf r=\int_C\mathbf F(x(t),y(t),z(t))\cdot\dfrac{\mathrm d\mathbf r}{\mathrm dt}\,\mathrm dt

=\displaystyle\int_0^1(t^3\,\mathbf i+t^5\,\mathbf j+t^4\,\mathbf k)\cdot(\mathbf i+2t\,\mathbf j+3t^2\,\mathbf k)\,\mathrm dt

=\displaystyle\int_0^1(t^3+5t^6)\,\mathrm dt

=\dfrac{t^4}4+\dfrac{5t^7}7\bigg|_0^1=\dfrac14+\dfrac57=\boxed{\dfrac{27}{28}}

7 0
3 years ago
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