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olya-2409 [2.1K]
3 years ago
13

How do you find out if the scale factor of a triangle is similar?

Mathematics
1 answer:
Norma-Jean [14]3 years ago
6 0
When two triangles<span> are </span>similar<span>, the reduced ratio of any two corresponding sides is called the </span>scale factor<span> of the </span>similar triangles. In Figure 1, Δ ABC∼ Δ DEF. Figure 1Similar triangles<span> whose </span>scale factor<span> is 2: 1. The ratios of corresponding sides are 6/3, 8/4, 10/5. 

</span>
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A halloween assorted bag of candy contains 4 Snickers, 2 packages of M&amp;M's, &amp; 3 Butterfingers. What is the probability o
a_sh-v [17]

Answer:

2/27

Step-by-step explanation:

In the question we have:

4 snickers

2 packages of M&M's

3 Butterfingers.

Total number of candies in the Halloween bag = 9

Probability of selecting some M&M's and putting them back = 2/9

Probability of selecting a Butter finger = 3/9

Therefore, the probability of selecting some M&M's, putting them back, and then selecting a Butterfinger =

Probability of selecting some M&M's and putting them back × Probability of selecting a Butter finger

2/9 × 3/9

= 6/ 81

= 2/27

3 0
3 years ago
Given Triangle DEF is isosceles and angle D is the vertex angle, Find x, DE, DF, EF
ch4aika [34]

Answer:

x=2;DE,EF=9,DF=5

Step-by-step explanation:

Since DEF is isoceles, you can set the equations

x+7 and 2x+5 equal to each other

x+7=2x+5, now solve for x

-x=-2,

x=2, now plug in for each side

DE,EF=9

DF=3(2)-1=5

4 0
3 years ago
What is the inverse of g? <br> g(x) = 3/x+7
ikadub [295]

Given function :-

\bf \implies g(x) = \dfrac{3}{x}+7

  • To find its reverse , substitute y = g(x) .

\bf \implies y = \dfrac{3}{x}+7

  • Interchange x and y .

\bf \implies x = \dfrac{3}{y}+7

  • Solve for y .

\bf\implies \dfrac{3}{y}= x -7 \\\\\bf\implies y =\dfrac{3}{x-7}

  • Replace y with f-¹(x) .

\implies\boxed{\red{\bf f^{-1}(x) = \dfrac{3}{x-7} }}

6 0
3 years ago
1. 43 +2)what is the value of the expression​
Maru [420]

Answer:

45

Step-by-step explanation:

This is the answer because:

1) 43 + 2 equals to 45

Hope this helps!

7 0
3 years ago
Use the Echelon Method<br> 1. Solve<br> x + 3y = 7<br> 3x + 4y = 11
Ludmilka [50]

Answer:

x = 1     y = 2

Step-by-step explanation:

x + 3y = 7

- Subtract x from both sides.

3y = -x + 7

- Divide both sides by 3 to isolate the variable.

y = -1/3x + 7/3

- Plug the value of y into the other equation.

3x + 4(-1/3x + 7/3) = 11

3x - 4/3x + 28/3 = 11

- Add like terms.

5/3x + 28/3 = 11

5/3x = 5/3

x = 1

- Plug the value of x into the equation.

x + 3y = 7

(1) + 3y = 7

3y = 6

y = 2

5 0
3 years ago
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