I have a test tomorrow! I am trying to study. I have no clue what the difference between scale and scale factor is! How do you find them? I have to know in 20 min. Please HELP!!!

Answer:

16 sides

Step-by-step explanation:

the sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

here sum = 2520° , then

180° (n - 2) = 2520° ( divide both sides by 180° )

n - 2 = 14 ( add 2 to both sides )

n = 16

the polygon has 16 sides

Answer:

Step-by-step explanation:

12 ≤ t ≤ 25

t ≤ 13 miles

Answer:

5

Step-by-step explanation:

x - 1= 0 → x = 1 We paste this value.

3(1)⁵ + 4(1)⁴ - 2= 3 + 4 - 2 = 5

There is another method that is longer. As shown in the picture

Answer:

x^10

the power will be add

Answer:

Donna will be paid

$

80

as interest.

Explanation:

S

I

=

P

×

R

×

T

100

Applying the formula for simple interest we get:

S

I

=

800

×

2

×

5

100

S

I

=

8

00

×

2

×

5

1

00

S

I

=

8

×

2

×

5

S

I

=

80

Step-by-step explanation:

Answer:

$80

Step-by-step explanation:

Did this question in class before ;D

The height of the tree to the nearest tenth of foot is 20.5 ft

A right angle triangle has one of its angles as 90 degrees. The sides can be found using Pythagoras theorem.

The side of the base triangle can be found using Pythagoras theorem.

c² = a² + b²

c² = 9.2² + 5.8²

c² = 84.64 + 33.64

c = 10.9 ft

using similar triangle ratio,

5.8 / 10.9 = 10.9 / x + 5.8

5.8x = 118.81 - 33.64

x = 85.17 / 5.8

x = 14.6844827586

x = 14.7 ft

The height of the tree to the nearest foot is  14.7 + 5.8 = 20.5  ft

learn more on right angle triangle here: brainly.com/question/26909069

Answer:

negative 5

Step-by-step explanation:

See both lines are parallel

Means

If slopes are equal then x and y coefficients are equal.

Considering the volume of a rectangular prism, it is found that the volume of the wooden mold is given by:

C. 6,000 in³

The volume of a rectangular prism of length l, width w and height h is given by:

[tex]V = lwh[/tex]

In this problem, the wooden mold is composed by two rectangular prisms:

Hence the volume in cubic inches is given by:

[tex]V = 25(10)(12) + 20(12)(12) = 5880[/tex]

Rounding, it is closest to 6000 in³, hence option C is correct.

More can be learned about the volume of a rectangular prism at https://brainly.com/question/17223528

Answer:

No, it can not.

Step-by-step explanation:

For a triangle to exist. The two sides of length of every triangle added up must be greater than the other length.

Here,

13 + 3 > 10

13 + 10 > 3

but,

3 + 10 > 13 is false

so, the side lengths 3, 10, 13 can not form a triangle.

The value of cosθ from the trigonometric identity is equal to -21/29

Data;

This formula is used to find the missing side of a right angle triangle.

This is given as

[tex]hypothenuse^2 = adjacent^2 + opposite^2[/tex]

But in trigonometric ratio, the sine ratio is

[tex]sin \theta = \frac{opposite}{hypothenuse}[/tex]

This implies that

Let's find the adjacent using Pythagorean theorem

[tex]x^2 = y^2 + z^2\\29^2 = 20^2 + z^2 \\z^2 = 29^2 - 20^2\\z^2 = 441\\z = \sqrt{441} \\z= 21[/tex]

Now that we know the value of adjacent,

The value of cos(0) will be

[tex]cos \theta = \frac{adjacent}{hypothenuse} \\cos \theta =- \frac{21}{29}\\[/tex]

Note: The negative sign in front of the ratio indicates the fact that in the second quadrant, only sine theta is positive, the rest are negative.

The value of cosθ is equal to -21/29

Learn more on Pythagorean theorem here;

https://brainly.com/question/343682

Answer:

56.25

Step-by-step explanation:

7.5x7.5=56.25

Answer: The human population in 1953 was 598 people.

Answer:

[tex](A)\frac 1 {cosx} \frac 1 {sin x} - \frac {cosx} {sin x} = \frac {sin x} {cosx} \\\\(B)\frac{1-cos^2 x }{cos x sin x} = \frac {sin x} {cosx} \\\\(C) \frac{(sin^2x + cos^2x)-cos^2 x }{cos x sin x} = \frac {sin x} {cosx} \\\\(D) \frac{sin^2x }{cos x sin x} = \frac {sin x} {cosx}\\\\(E)\frac {sin x}{cos x} = \frac {sin x}{cos x}[/tex]

In step A, you replace all trigonometric functions with their definitions in terms of sine and cosine.

In step B, you add the two together as you add fractions.

In step C, you replace 1 with the sum of the squares of sine and cosine.
In step D, you add the cosine terms together so they disappear.

In step E, finally, you divide numerator and denominator by [tex]sin x[/tex].

Answer:

sqrt(x^2+y^2)

Step-by-step explanation:

x^2+y^2=z^2 (Pythagorean theorem)

sqrt(x^2+y^2)=sqrt(z^2)

sqrt(x^2+y^2)=z

Answer:

Solving for x;

2x + 85 + 5x + 29 = 930

combine like terms:

7x + 114 = 930

-114          -114

7x = 816

/7      /7

x = 116.57, now we replace the x with it's actual value:

∠ZT = 2(116.57) + 85 = 318.14°

∠ZV = 5(116.57) + 29 = 611.85°, lets double check if they both equal 930;

318.14 + 611.85 = 929.99, which is close to 930 so we are correct.

Answer:

(x+y)(x-y)

x^2 - xy + xy - y^2

x^2 - y^2

Answer:

348

Step-by-step explanation:

16*16=256

256+92=348

Answer: 42

Step-by-step explanation:

Answer:

40 feet

Step-by-step explanation:

The area of a triangle is given by A=h×b/2

A=10×8/2

A=80/2

A=40 feet²

Answer:

y = - 3x - 4

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = 10 - 3x = - 3x + 10 ← is in slope- intercept form

with slope m = - 3

y = - 6x - 4 ← is in slope- intercept form

with y- intercept c = - 4

then equation of required line is

y = - 3x - 4

Hello!

The slope of the first line is -3.

The y-intercept of the second line is -4.

How did I identify the slope & y-intercept?

Let me share my "secret"

Well, both equations are written in slope-intercept form (y=mx+b)

where m = slope & b = y-intercept.

Now you know ;-)

Anyway, the new line should have the same slope as the first line (-3)

And the y-intercept of the second line is -4.

So the equation is

y=-3x-4

Hope everything's clear!

#KeepLearning

Answer:

1/3

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-4-(-5))/(3-0)

m=(-4+5)/3

m=1/3

Answer:

I think it's E?

Step-by-step explanation:

hope this is right, if so then...

Pls, choose me as brainliest!

Answer:

x = 3

Step-by-step explanation:

When chords intersect inside a circle, the product of the lengths of the two segments of one chord equals the same product of the other chord.

10x = 5 × 6

10x = 30

x = 30/10

x = 3

Answer:

a.) Domain: all numbers from 0 to 170   and   d. Range: all numbers from 0 to 60

Step-by-step explanation:

The domain is all of the numbers that the graph is on, over the x-axis. Looking at the x-axis, the graph only spans across 0-170, so the answer would be   a.) Domain: all numbers from 0 to 170.

The range is all of the numbers that the graph is on, over the y-axis. Looking at the y-axis, the graph only spans across 0-60, so the answer would be   d. Range: all numbers from 0 to 60.

Answer:

the answer will be 3.82 . Hope this helped

Step-by-step explanation:

Answer:

fu

Step-by-step explanation:

Answer:

  0.57 inches

Step-by-step explanation:

To find the quantity, multiply the rate by the time.

  (0.057 in/min) × (10 min) = 0.57 in

At the given rate, 0.57 inches fell in 10 minutes.