All categories

3 years ago

What is the scale factor from polygon A to polygon B

Mathematics

1 answer:

den301095 [7]3 years ago

3 0

The scale factor is 2

In Polygon A one of the sides are 2.5. Take the same side from Polygon B and divide it by the side in Polygon A like this
$5 \div 2.5$
You get the answer of 2 after dividing

You might be interested in

Find the midpoint of the line segment with endpoints

finlep [7]

Answer:

(-1.85, -0.15)

Step-by-step explanation:

$\frac{x1 + x2}{2} , \frac{y1 + y2}{2}$

Here,

x1 = -5.1

x2 = 1.4

y1 = -2

y2 = 1.7

Now substituting the values we have in the equation, we get:-

$\frac{-5.1+ 1.4}{2} , \frac{-2+ 1.7}{2}$

$\frac{-3.7}{2} , \frac{-0.3}{2}$

The coordinates of the midpoint would be = (-1.85, -0.15)

5 0

2 years ago

3x+9=1x what’s the slope and intercept form

tresset_1 [31]

Answer:

this equation cannot be written in slope-intercept form

Step-by-step explanation:

The given equation is equivalent to ...

2x +9 = 0 . . . . . subtract 1x

x + 4.5 = 0 . . . . divide by 2

x = -4.5 . . . . . . . the equation of a vertical line.

It has no y-intercept and its slope is undefined.

5 0

2 years ago

The lengths of the sides of a triangle are 15 cm, 20 cm, 30 cm. What are the lengths of the sides of a similar triangle that has

faust18 [17]

Answer:

6 cm,12 cm,8 cm

Step-by-step explanation:

add the perimeter of the first triangle to get 65

then divide 65 by 26 to get 2.5

then divide all the side lengths by 2.5

15/2.5=6

20/2.5=8

30/2.5=12

6 0

3 years ago

Read 2 more answers

compute the projection of → a onto → b and the vector component of → a orthogonal to → b . give exact answers.

Nina [5.8K]

$\text { Saclar projection } \frac{1}{\sqrt{3}} \text { and Vector projection } \frac{1}{3}(\hat{i}+\hat{j}+\hat{k})$

We have been given two vectors $\vec{a}$ and $\vec{b}$ , we are to find out the scalar and vector projection of $\vec{b}$ onto $\vec{a}$

we have $\vec{a}=\hat{i}+\hat{j}+\hat{k}$ and $\vec{b}=\hat{i}-\hat{j}+\hat{k}$

The scalar projection of $\vec{b}$ onto $\vec{a}$ means the magnitude of the resolved component of $\vec{b}$ the direction of $\vec{a}$ and is given by

The scalar projection of $\vec{b}$ onto

$\vec{a}=\frac{\vec{b} \cdot \vec{a}}{|\vec{a}|}$

$\begin{aligned}&=\frac{(\hat{i}+\hat{j}+\hat{k}) \cdot(\hat{i}-\hat{j}+\hat{k})}{\sqrt{1^2+1^1+1^2}} \\&=\frac{1^2-1^2+1^2}{\sqrt{3}}=\frac{1}{\sqrt{3}}\end{aligned}$

The Vector projection of $\vec{b}$ onto $\vec{a}$ means the resolved component of $\vec{b}$ in the direction of $\vec{a}$ and is given by

The vector projection of $\vec{b}$ onto

$\vec{a}=\frac{\vec{b} \cdot \vec{a}}{|\vec{a}|^2} \cdot(\hat{i}+\hat{j}+\hat{k})$

$\begin{aligned}&=\frac{(\hat{i}+\hat{j}+\hat{k}) \cdot(\hat{i}-\hat{j}+\hat{k})}{\left(\sqrt{1^2+1^1+1^2}\right)^2} \cdot(\hat{i}+\hat{j}+\hat{k}) \\&=\frac{1^2-1^2+1^2}{3} \cdot(\hat{i}+\hat{j}+\hat{k})=\frac{1}{3}(\hat{i}+\hat{j}+\hat{k})\end{aligned}$

To learn more about scalar and vector projection visit:brainly.com/question/21925479

#SPJ4

3 0

1 year ago

A sentence must contain an adjective to be a complete sentence??? True or false

pashok25 [27]

False because the sentence can be completed well without adjective too

4 0

3 years ago