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shusha [124]
3 years ago
9

PLEASE HELP ME QUICK!!!!! 30 POINTS!!!!

Mathematics
2 answers:
yawa3891 [41]3 years ago
8 0
You will have to divide it
Nezavi [6.7K]3 years ago
3 0

if your book scales 10 times then each surface will scale 10^2=100 times. so the total surface would be 100*126.25=12625

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Find a vector equation and parametric equations for the line. (Use the parameter t.) The line through the point (0, 15, −6) and
Len [333]

<x = 0 + 2t, y = 15 - 3t, z = -6 + 7t> is the vector parametric equation of the line parallel to the given one and that passes through the point (0, 15, −6).

According to the statement

we have to find that the vector equation with the help of the given line equation and the points.

So, For this purpose, we know that the

A vector equation is an equation involving a linear combination of vectors with possibly unknown coefficients.

And the given points is (0, 15, −6) and the lines

x = −1 + 2t,

y = 6 − 3t,

z = 3 + 7t

From these equation of lines:

Let a = -1 and b = 6 and c = 3

Then

Now, if we want this line to pass through the point (0, 15, -6), then we can replace the correspondent values in the constant term for each equation:

So, Put it in the given equations then

x = 0 + 2t and y = 15 - 3t and z = -6 + 7t

and the vector equation become

<x = 0 + 2t, y = 15 - 3t, z = -6 + 7t>

So, <x = 0 + 2t, y = 15 - 3t, z = -6 + 7t> is the vector parametric equation of the line parallel to the given one and that passes through the point (0, 15, −6).

Learn more about vector parametric equation here

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7 0
2 years ago
What is 11/5 as a decimal
Eduardwww [97]
11/5 as a decimal is 2.2. You have to divide 11 by 5 to convert it into a decimal.
6 0
3 years ago
Read 2 more answers
Theequationforlineucanbewrittenasy = 6x + 6 . Line v , whichisperpendiculartoline u , includes the point (10, –5) . What is the
PolarNik [594]

Answer:

y=\frac{-1}{6}x-\frac{10}{3}

Step-by-step explanation:

Slope intercept form of the equation of a line is y=mx+b where m denotes the slope of line and b denotes the y-intercept.

Equation of a line u is y=6x+6

Here, slope of line u = m = 6

As the line v is perpendicular to line u, product of slopes of both the lines is equal to -1.

Slope of line v  =\frac{-1}{6}

So, slope intercept form of the line v is y=\frac{-1}{6}x+b

As point (10,-5) lies on the line v, put (x,y)=(10,-5) in equation y=\frac{-1}{6}x+b

-5=\frac{-1}{6}(10)+b\\-5=\frac{-5}{3}+b\\ -5+\frac{5}{3}=b\\\frac{-15+5}{3}=b\\\\\frac{-10}{3}=b

Equation of line v is y=\frac{-1}{6}x-\frac{10}{3}

3 0
3 years ago
The two triangles in the figure are congruent because
geniusboy [140]

Answer:

sas postulate...............

Step-by-step explanation:

because there is one side ,one angle and another side ,sooo

5 0
3 years ago
Read 2 more answers
Solve without using a calculator:<br><br> sin²20° + sec²20°
PolarNik [594]

Step-by-step explanation:

sin

2

(

20

°

)

+

sec

2

(

20

°

)

Simplify each term.

Tap for fewer steps...

Rewrite

sec

(

20

°

)

in terms of sines and cosines.

sin

2

(

20

°

)

+

(

1

cos

(

20

°

)

)

2

Apply the product rule to

1

cos

(

20

°

)

.

sin

2

(

20

°

)

+

1

2

cos

2

(

20

°

)

One to any power is one.

sin

2

(

20

°

)

+

1

cos

2

(

20

°

)

Simplify each term.

Tap for fewer steps...

Rewrite

1

as

1

2

.

sin

2

(

20

°

)

+

1

2

cos

2

(

20

°

)

Rewrite

1

2

cos

2

(

20

°

)

as

(

1

cos

(

20

°

)

)

2

.

sin

2

(

20

°

)

+

(

1

cos

(

20

°

)

)

2

Convert from

1

cos

(

20

°

)

to

sec

(

20

°

)

.

sin

2

(

20

°

)

+

sec

2

(

20

°

)

The result can be shown in multiple forms.

Exact Form:

sin

2

(

20

°

)

+

sec

2

(

20

°

)

Decimal Form:

1.24945210

7 0
3 years ago
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