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3 years ago

Which ordered pair is the solution to the system of linear equations y= -7x+2 and. y=9x - 14

Mathematics

1 answer:

12345 [234]3 years ago

6 0

The answer is (1,-5), If you put those two on a graph, that point is where they collide.

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If angle x is the reference angle, which side is the opposite side

mestny [16]

Y would be !!!!! Its on the opposite side !!!

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3 years ago

each brick in the wall has a dimension shown below 8 in 4 in 2.25in what is the volume of each brick?

Elena-2011 [213]

Answer:

72 cubic inches

Step-by-step explanation:

The volume of a rectangular prism shape, such as a brick, is the product of its dimensions:

V = LWH

V = (8 in)(4 in)(2.25 in) = 72 in^3

The volume of each brick is 72 cubic inches.

8 0

4 years ago

Find the degree of the monomial.<br>3b2c

garik1379 [7]

Answer:

Step-by-step explanation:

The degree of the given monomial = 2 + 1 = 3

8 0

3 years ago

Evaluate the line integral, where c is the given curve. (x + 9y) dx + x2 dy, c c consists of line segments from (0, 0) to (9, 1)

viktelen [127]

$\displaystyle\int_C(x+9y)\,\mathrm dx+x^2\,\mathrm dy=\int_C\langle x+9y,x^2\rangle\cdot\underbrace{\langle\mathrm dx,\mathrm dy\rangle}_{\mathrm d\mathbf r}$

The first line segment can be parameterized by $\mathbf r_1(t)=\langle0,0\rangle(1-t)+\langle9,1\rangle t=\langle9t,t\rangle$ with $0\le t\le1$ . Denote this first segment by $C_1$ . Then

$\displaystyle\int_{C_1}\langle x+9y,x^2\rangle\cdot\mathbf dr_1=\int_{t=0}^{t=1}\langle9t+9t,81t^2\rangle\cdot\langle9,1\rangle\,\mathrm dt$
$=\displaystyle\int_0^1(162t+81t^2)\,\mathrm dt$
$=108$

The second line segment ( $C_2$ ) can be described by $\mathbf r_2(t)=\langle9,1\rangle(1-t)+\langle10,0\rangle t=\langle9+t,1-t\rangle$ , again with $0\le t\le1$ . Then

$\displaystyle\int_{C_2}\langle x+9y,x^2\rangle\cdot\mathrm d\mathbf r_2=\int_{t=0}^{t=1}\langle9+t+9-9t,(9+t)^2\rangle\cdot\langle1,-1\rangle\,\mathrm dt$
$=\displaystyle\int_0^1(18-8t-(9+t)^2)\,\mathrm dt$
$=-\dfrac{229}3$

Finally,

$\displaystyle\int_C(x+9y)\,\mathrm dx+x^2\,\mathrm dy=108-\dfrac{229}3=\dfrac{95}3$

5 0

3 years ago

You must ship 40 packages weighing 3 1/4 pounds each . What is the total weight of the packages in pounds

frozen [14]

Answer:

130

Step-by-step explanation:

Times 40 & 3 to get 120.

Then as 1 is equal to 1/4 and 4 is equal to 4/4 which is a whole.

As 4 = 4/4 or 1 whole.

Count by 4 with your fingers until you get 40. Which is ten.

Then add 120+10 which equals to our answer that is 130.

8 0

4 years ago