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dlinn [17]
3 years ago
14

Triangle C F E is shown. Angle C F E is a right angle. An altitude is drawn from point F to point D on side C E, forming a right

angle. The length of F D is 9, the length of C D is 5, and the length of D E is 2 x + 3.
What is the value of x and the length of segment DE?
StartFraction 5 Over 9 EndFraction = StartFraction 9 Over 2 x + 3 EndFraction
10x + 15 = 9(9)
x =
Length of = units
Mathematics
2 answers:
shusha [124]3 years ago
8 0

Answer:

x=6.6

16.2

Step-by-step explanation:

I just did it its right

PilotLPTM [1.2K]3 years ago
4 0
45 leaf that over 99
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What is the value of x in the equation 3x-1/9=18 when y equals 27
anygoal [31]

Answer: 163/27

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

3x + -1/9 = 18

Step 2: Add 1/9 to both sides.

3x + -1/9 + 1/9 + = 18 + 1/9

3x = 163/9

Step 3: Divide both sides by 3.

3x/3 = 163/9 over 3

x = 163/27

8 0
3 years ago
Calculate the unshaded part ​
valina [46]

Answer:

4×3=12

answer=12

Step-by-step explanation:

2.5 is the diameter so you don't use that but

if you want the area it is 12

if you want the perimeter it

will be 3+3+4+4

Which is 6+8=14

4 0
3 years ago
I think its A or b but i dont know help!!!!!!!
murzikaleks [220]

Answer:

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5 0
3 years ago
What is 0.84 10 times as much as
Aleks [24]
0.84 is 10 times as much as 0.084
5 0
3 years ago
Read 2 more answers
What is the product? (9 t minus 4)(negative 9 t minus 4) negative 81 t squared minus 16 negative 81 t squared + 16 negative 81 t
liraira [26]

The product is negative 81 t squared + 16 ⇒ 2nd answer

Step-by-step explanation:

The product of two binomials (ax + b)(cx + d), where a, b, c, and d are constant

  • Multiply (ax) by (cx) ⇒ 1st × 1st
  • Multiply (ax) by (d) and (b) by (cx) ⇒ ext-reams and nears
  • Add the two products ⇒ like terms
  • Multiply (b) by (d) ⇒ 2nd × 2nd

Let us find the product of (9 t - 4) and (-9 t - 4)

Multiply the 1st two terms

∵ (9 t)(-9 t) = -81 t²

Multiply the ext-reams

∵ (9 t)(-4) = -36 t

Multiply the nears

∵ (-4)(-9 t) = 36 t

Add the like terms

∵ -36 t + 36 t = 0

Multiply the 2nd two terms

∵ (-4)(-4) = 16

Write the answer

∴ (9 t - 4)(-9 t - 4) = -81 t² + 0 + 16

∴ (9 t - 4)(-9 t - 4) = -81 t² + 16

The product is  -81 t² + 16

Learn more:

You can learn more about the product of algebraic expressions in brainly.com/question/1617787

#LearnwithBrainly

7 0
3 years ago
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