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Alex787 [66]
3 years ago
10

Find the missing angle or side. Round to the nearest tenth.

Mathematics
1 answer:
babymother [125]3 years ago
8 0

Answer:

x = 19.4

Step-by-step explanation:

For the 72-deg angle, 6 is the adjacent leg. x is the hypotenuse. The trig ratio that relates the adjacent leg to the hypotenuse is the cosine.

\cos A = \dfrac{adj}{hyp}

\cos 72^\circ = \dfrac{6}{x}

x \cos 72^\circ = 6

x = \dfrac{6}{\cos 72^\circ}

x = 19.4

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18=b/3+3 what's the solution
madam [21]

b= 63 and that is your answer


5 0
3 years ago
Read 2 more answers
Can someone help me i need an answer in 20 mins!!!!
Morgarella [4.7K]

Answer:

x=7

Step-by-step explanation:

Multiply the numerator of the first fraction by the denominator of the second fraction. Set this equal to the product of the denominator of the first fraction and the numerator of the second fraction.

2(x+13)=(x−2)⋅8

Solve the equation for x.

Simplify 2(x+13).

Start simplifying.

0+0+2(x+13)=(x−2)⋅8

Simplify by adding zeros.

2(x+13)=(x−2)⋅8

Apply the distributive property.

2x+2⋅13=(x−2)⋅8

Multiply 2 by 13

2x+26=(x−2)⋅8

Simplify (x−2)⋅8

Apply the distributive property.

2x+26=x⋅8−2⋅8

Simplify the expression.

Move 8 to the left of x

2x+26=8⋅x−2⋅8

Multiply −2 by 8

2x+26=8x−16

Move all terms containing x to the left side of the equation.

Subtract 8x from both sides of the equation

2x+26−8x=−16

Subtract 8x from 2x

−6x+26=−16

Move all terms not containing x to the right side of the equation.

Subtract 26 from both sides of the equation

−6x=−16−26

Subtract 26 from −16

−6x=−42

Divide each term in −6x=−42 by −6 and simplify

Divide each term in −6x=−42 by −6

Simplify the left side

Cancel the common factor of −6.

Divide x by 1.

Simplify the right side.

Divide −42 by −6.

x=7

4 0
3 years ago
Suzanne needs material for her school project. She buys 2.5 yards of material at $5.84 a
antoniya [11.8K]

Answer:

$14.60

Step-by-step explanation:

5.84 times 2.5 = 14.6

6 0
3 years ago
I need help with this am completely lost
cupoosta [38]

Angle DOC is a vertical angle to AOB. Since this is a central angle, arc AB is 50.

Angles AOE, EOD, and DOC are supplementary. 180 - 60 - 50 = 70. Angle AOE is also central, so arc AE is 70.

All arcs combined add to 360, so 360 - 70 - 50 = 240 (we subtracted every other arc besides ECB, which is 240.)

We know angle BOC is vertical to the sum of AOE and EOD, so 60+ 70 = 130. Angle BOC is 130.

7 0
3 years ago
Jonah read 5 1/2 chapters in his book in 90 minutes how long did it take him to read one chapter
Scrat [10]

Answer:

around 16 minutes. you partition an hour and a half (all out) by what number of sections he read (5.5

Step-by-step explanation:

7 0
3 years ago
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