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4 years ago

someone please help me this is due tomorrow!! i will mark brainliest whoever answers!! answer 4 and 5 for 15 points!!!

Mathematics

2 answers:

Anon25 [30]4 years ago

6 0

Answer:

hold on ill try to answer that for you fluffy puff TOO THE RUSCUE

Step-by-step explanation:

zhenek [66]4 years ago

3 0

First, divide the number of produce your buying buy the cost.

Box of light bulbs = 4

cost of 4 light bulbs = 3.79

Cost for item individually ( Unit rate for each item ) =x

The variable ( letter that represents a number ) is being multiplied by 4

4x= 3.79 Do the reciprocal ( the reverse ) for 4 times X to 4 divide 3.79

4/4x = 3.79/4 The 4 moves to the other side and is now dividing by 3.79

The fraction symbol also represents dividing

x = 3.79/4 Now divide the cost by four

x= .9475 round up to nearest cent .95 C

The rest do the same and 5 use the answer for $19.50 divided by 3 to complete the table by multiplying the answer of $19.50 divided by 3 to hours worked.

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The midpoint of AB is (3,2). If point is is located at(8,4) what are the coordinates of point B

Dmitry [639]

Step-by-step explanation:

8-3 = 5,

3-5 = -2 = the x coordinate of B

-2-4 =-6,

-2-6 =-8 = the y coordinate of B

(-2,-8) is the point B

A is 5 to the right of the midpoint, so B is 5 to the left of the midpoint

A is 6 up from the midpoint so B is 6 down from the midpoint

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2 years ago

Find equations of the tangent plane and the normal line to the given surface at the specified point. x + y + z = 8exyz, (0, 0, 8

Dima020 [189]

Let $f(x,y,z)=x+y+z-8e^{xyz}$ . The tangent plane to the surface at (0, 0, 8) is

$\nabla f(0,0,8)\cdot(x,y,z-8)=0$

The gradient is

$\nabla f(x,y,z)=\left(1-8yze^{xyz},1-8xze^{xyz},1-8xye^{xyz}\right)$

so the tangent plane's equation is

$(1,1,1)\cdot(x,y,z-8)=0\implies x+y+(z-8)=0\implies x+y+z=8$

The normal vector to the plane at (0, 0, 8) is the same as the gradient of the surface at this point, (1, 1, 1). We can get all points along the line containing this vector by scaling the vector by $t$ , then ensure it passes through (0, 0, 8) by translating the line so that it does. Then the line has parametric equation

$(1,1,1)t+(0,0,8)=(t,t,t+8)$

or $x(t)=t$ , $y(t)=t$ , and $z(t)=t+8$ .

(See the attached plot; the given surface is orange, (0, 0, 8) is the black point, the tangent plane is blue, and the red line is the normal at this point)

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3 years ago

Please help !! Correct and first answer I will give you brainesttttt!!!!! What is the equation of the line ?

Nonamiya [84]

Answer:

y = 3x + 5

Have a good day! :)

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3 years ago

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Please help me with algebra 1!!!! I can’t get it for anything.

juin [17]

Answer:

Step-by-step explanation:

Okay I got you this text me 315 920 8788

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3 years ago

Write a set of ordered pairs that is represented by the arrow diagram 49,13 69,32 18,22 78,57 28,57 the set of order pair is?

Komok [63]

Answer:

The mapping can also be represented as the set of ordered pairs: (4, 9) (5, 10) (6, 11) (7, 12). The ordered pair preserves the directional property of the relation. It is consistent with the order of points plotted on a Cartesian Plane represented by (",$). In the Arrow Diagram that follows.

Step-by-step explanation:

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3 years ago

someone please help me this is due tomorrow!! i will mark brainliest whoever answers!! answer 4 and 5 for 15 points!!!​

someone please help me this is due tomorrow!! i will mark brainliest whoever answers!! answer 4 and 5 for 15 points!!!