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Elena-2011 [213]
3 years ago
15

What is the value of x in the diagram

Mathematics
1 answer:
Rufina [12.5K]3 years ago
6 0

Answer:

B. 6.2

Step-by-step explanation:

5(5 + x) = 4(4 + 10) \\  \\ 25 + 5x = 4(14) \\  \\ 25 + 5x = 56 \\  \\ 5x = 56 - 25 \\  \\ 5x = 31 \\  \\ x =  \frac{31}{5}  \\  \\ x = 6.2

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Which of the following completes the proof? Triangles ABC and EDC are formed from segments BD and AC, in which point C is betwee
kotykmax [81]

Answer: ∠ACB ≅ ∠E'C'D'; translate point D' to point B

Step-by-step explanation:

That is just my best guess.

3 0
3 years ago
Read 2 more answers
Which inequality represents all values of x for which the product below is defined?
Wewaii [24]

Answer:

Since we want to satisfy both at the same time, "x" must be equal or greater than 6.

Step-by-step explanation:

This product is formed by two square roots, since this mathematical operator can only be defined for positive values and zero, the number inside the root must be always greater or equal to 0, on both roots. Therefore:

x - 6 \geq 0\\x \geq 6

and

x + 3 \geq 0\\x \geq -3

Since we want to satisfy both at the same time, "x" must be equal or greater than 6.

7 0
3 years ago
A number x decreased by 3 is 5.
kondaur [170]

Answer:

8

Step-by-step explanation:

X=8 bc 8-3=5

4 0
3 years ago
Find the height of a right cylinder with surface area 240π ft2 and radius 5 ft.
FrozenT [24]

Answer:

h ≈ 2.64ft

Step-by-step explanation:

A = 2πrh + 2πr2

h= A /2πr﹣r = 240 /2·π·5﹣5 ≈ 2.63944ft

Kono Dio Da!!

3 0
3 years ago
ASAP WILL MARK BRAINLYEST <br><br>solve these four please!!
s2008m [1.1K]

I dont know if you wanted the steps but:

x^2-4x-6=0

plug it into the equation:

\frac{-(-4)\sqrt{(-4)^2-4(1)(-6)}}{2(1)}

[tex] \frac{4\sqrt{40}}{2} [/tex]

\frac{4+2\sqrt{10}}{2}    \frac{4-2\sqrt{10}}{2}

x=2+\sqrt{10}

x=2-\sqrt{10}

x^2-4/3x+1/3 x=1 , x= 1/3

2x^2-3x+1=0 x=1 , x=1/2

6x^2+12x=-5

add the 5 to both sides

6x²+12x+5=0 plug the problem into the equation

x=\frac{-12\sqrt{12^{2}-4(6)(5)}}{2(6)}

x=[\frac{-12\sqrt{144-120}}{12}

x=\frac{-12\sqrt{24}}{12}

x=\frac{-12+2\sqrt{6}}{12} x=\frac{-12-2\sqrt{6}}{12}

\frac{-6+2\sqrt{6}}{6} \frac{-6-2\sqrt{6}}{6}


7 0
3 years ago
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