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3 years ago

Solve for x. Assume that lines which appear tangent are tangent.

Mathematics

1 answer:

Lunna [17]3 years ago

4 0

Presumably, x is standing in for the question mark.

The pair of vertical angles (DFE and CFV) shown here both have measure 125°. This angle measure is equal to the average of the measures of the arcs intercepted by the chords CE and DV.

So we have

angle DFE = 1/2 (arc CV + arc DE)

125° = 1/2 (x + 200°)

250° = x + 200°

x = 50°

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Geometric or arithmetic 4,10,16,22

skad [1K]

Answer:

arithmetic

Step-by-step explanation:

An arithmetic sequence has a common difference d between consecutive terms.

22 - 16 = 6

16 - 10 = 6

10 - 4 = 6

A common difference of 6 exists between consecutive terms.

Thus the sequence is arithmetic.

8 0

2 years ago

Solve the system of equations using substitution.

Lynna [10]

Answer:

(6,12)

Step-by-step explanation:

Substitute the value of y into y=2x:

x+6=2x

x=6

Substitute x into the equation of y=2x

y = 2*6 = 12

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2 years ago

X=4y,2x+y=18 solve by substitution show all work

Mkey [24]

Here is the math, did it on paper, sorry it’s blue. just add parenthesis around the x in the second equation and add what x equals. then solve as PEMDAS.

7 0

2 years ago

Can somebody help with these three questions plz

liraira [26]

$\bf \sqrt{2}\left(3\sqrt{2}+\sqrt{18} \right)~~
\begin{cases}
18=2\cdot 3\cdot 3\\
\qquad 2\cdot 3^2
\end{cases}\implies \sqrt{2}\left(3\sqrt{2}+\sqrt{2\cdot 3^2} \right)
\\\\\\
\sqrt{2}\left(3\sqrt{2}+3\sqrt{2} \right)\implies \sqrt{2}\left(6\sqrt{2} \right)\implies 6\left(\sqrt{2}\right)^2\implies 6\cdot 2\implies \stackrel{rational}{12}$

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3 years ago

A board that measures 3/4 feet long is cut into 6 equal pieces. What is the length of each piece?

gayaneshka [121]

I would convert from feet to inches and say an 9 in long board is cut.
Now just divide 9 by 6
9/6=1.5 inches

7 0

2 years ago

Read 2 more answers