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3 years ago

1. y = 38(x + 4) for x

Mathematics

1 answer:

dem82 [27]3 years ago

4 0

Answer:

- 4

Step-by-step explanation:

0= 38x + 152

- 38x=152

x= - 4

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. Find sets of parametric equations and symmetric equations of the line through the point parallel to the given vector or line (

omeli [17]

Answer:

a) L(x,y,z) = (-4,0,2)+(2,8,-7)*t

b) (2-z)/7= y/8=(x+4)/2 (option B)

Step-by-step explanation:

the parametric equation of the line passing through the point P₀= (-4,0,2) and parallel to the vector v=2i + 8j - 7k is

L(x,y,z)=P₀+v*t

therefore

L(x,y,z) = (-4,0,2)+(2,8,-7)*t

x=x₀+vx*t = -4 + 2*t

y=y₀+vy*t = 8*t

z=z₀+vz*t = 2 -7*t

solving for t in the 3 equations we get the symmetric equation of the line:

(2-z)/7= y/8=(x+4)/2

thus the option B is correct

6 0

4 years ago

Read 2 more answers

What is the solution to the system of equations?

Maslowich

Answer:

B) (10, -20)

Step-by-step explanation:

Plug in the values to y = -5x + 30 to see if they match:

we already know that x = 10 so are equation will always be:

y = -5(10) + 30 = -50 + 30 = -20

our new equation is y = -20

so your answer is B) (10, -20)

because the X-value has to be 10 and Y-value is equal to -20

4 0

4 years ago

Answer please tysmmm.

Sedbober [7]

Answer:

Step-by-step explanation:

7 0

4 years ago

Simplify (write without the absolute value sign)<br><br> |x+3|, if x>2

kodGreya [7K]

Answer:

Step-by-step explanation

Note that if x>2, then x+3>3+2=5. Then x+3>0. Recall that the absolute value function is defined as

$|x|=x \text{ if } x\geq 0$

$|x|=-x \text{ if } x< 0$

Since x+3>0, we have that |x+3|=x+3

6 0

3 years ago

If 2 liters of sea water contain 70 grams of salt, how much salt is in 32 liters of seawater?

Liono4ka [1.6K]

Answer:

There is 1,120 grams of salt in 32 liters of seawater.

Step-by-step explanation:

32 / 2 = 16

16 * 70 = 1,120

8 0

3 years ago