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Lerok [7]
3 years ago
8

Find EF -----------------------------------------------

Mathematics
1 answer:
avanturin [10]3 years ago
6 0
<h3>Answer:   6</h3>

===========================================================

Work Shown:

(whole length)*(external part) = (whole length)*(external part)

(EG)*(FG) = (SG)*(HG)

(2x+4)*(4) = (x+5)*(5)

8x+16 = 5x+25

8x-5x = 25-16

3x = 9

x = 9/3

x = 3

Use this x value to find EF

EF = 2x

EF = 2*3

EF = 6

For more information, search out "secant secant formula". It's not a typo that I wrote "secant" twice.

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Answer: C is the answer to this problem I believe

7 0
3 years ago
Does anybody know what -3/4 = -1/8x is? And can you please show work. Thank uuu.
Marat540 [252]

Answer:

x = 6

Step-by-step explanation:

  3          1

- ---- =  - ---- x

   4          8

   3          1

-  ---- =  - ---- x

    4          2³

   3          x

- ----  =  - ----

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x = 6

4 0
3 years ago
The smiths want to replace the stairway that leads from their porch to their sidewalk with a ramp. The porch is 3 feet off the g
Elis [28]
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So the answer is 12.4 feet


7 0
4 years ago
A local food mart donates 15% of its Friday sales to a charity. This Friday, the food mart had sales totaling $380.00. How much
rodikova [14]

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5 0
3 years ago
Read 2 more answers
Drag the factors to the correct locations on the image. Not all factors will be used.What is the factored form of this expressio
Afina-wow [57]

(3m+5n)(9m²-15mn+25n²)

1) Let's factorize 27m³ +125n³.

27m³ +125n³ <em>Let's use x³ +y³ product to factorize that</em>

<em />

x³ +y³ = (x +y)(x²-xy +y²)

2) So let's rewrite it, since 3³ = 27 and 5³ = 125

27m³ +125n³ =

Plug x =3m and y = 5n into those factors (x +y)(x²-xy +y²)

27m³ +125n³= (3m + 5n)(3²m² -5n*3m +5²n²)

27m³ +125n³= (3m+5n)(9m² - 15mn +25n²)

3) So the answer is

(3m+5n)(9m²-15mn+25n²)

<em />

5 0
1 year ago
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