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3 years ago

Please help i really need it !!!!

Mathematics

1 answer:

Vika [28.1K]3 years ago

4 0

C, i think you forgot an x
(x+11)+(x-7)
x+11+x-7
x+x+4
2x+4

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The surface area of an oil spill gets 105% larger every day, represented by the function s(x) = (1.05)x − 1. On the first day, i

ioda

The given scenario above is like a geometric sequence with r or common ratio being 1.05 and the first term being 31 square meters. The nth term of the sequence is calculated through the equation,
A15 = (A1)(r)^(n - 1)
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3 years ago

What is slope and intercept

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4 years ago

Find a vector equation and parametric equations for the line. (Use the parameter t.) The line through the point (0, 11, −8) and

NNADVOKAT [17]

Answer:

The vector equation of the line is $\overrightarrow {r}=(11j-8k)+t(4i-4j+6k)$ and parametric equations for the line are $x=4t$ , $y=11-4t$ , $z=-8+6t$ .

Step-by-step explanation:

It is given that the line passes through the point (0,11,-8) and parallel to the line

$x=-1+4t$

$y=6-4t$

$z=3+6t$

The parametric equation are defined as

$x=x_1+at,y=y_1+bt,z=z_1+ct$

Where, (x₁,y₁,z₁) is point from which line passes through and <a,b,c> is cosine of parallel vector.

From the given parametric equation it is clear that the line passes through the point (-1,6,3) and parallel vector is <4,-4,6>.

The required line is passes through the point (0,11,-8) and parallel vector is <4,-4,6>. So, the parametric equations for the line are

$x=4t$

$y=11-4t$

$z=-8+6t$

Vector equation of a line is

$\overrightarrow {r}=\overrightarrow {r_0}+t\overrightarrow {v}$

where, $\overrightarrow {r_0}$ is a position vector and $\overrightarrow {v}$ is cosine of parallel vector.

$\overrightarrow {r}=(11j-8k)+t(4i-4j+6k)$

Therefore the vector equation of the line is $\overrightarrow {r}=(11j-8k)+t(4i-4j+6k)$ and parametric equations for the line are $x=4t$ , $y=11-4t$ , $z=-8+6t$ .

3 0

3 years ago

17 = -47 + 6.98x. solve the equation. round your answer to the nearest hundredth

shutvik [7]

Solving it and nearing it to the hundredth would be 9.169 :)

6 0

3 years ago

Read 2 more answers

Please help asap thanks I only need the answer not an explanation

Doss [256]

Answer:

7.810.

Step-by-step explanation:

that is the answer

3 0

3 years ago