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3 years ago

9

Select ALL of the lines that contain the point (1,6)

1 answer:

Inessa [10]3 years ago

4 0

Answer:

Are there an A,B,C, and D<?

Step-by-step explanation:

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Which side lengths form a right triangle?

Natalija [7]

Answer:

this is kinda confusing..So ill just answer the first question.

<h3>Explanation: The Pythagorean Theorem gives us a2 + b2 = c2 for a right triangle, where c is the hypotenuse and a and b are the smaller sides.</h3>

hope it helps.

5 0

3 years ago

Which statements about finding the area of the equilateral triangle are true? Check all that apply.

lara31 [8.8K]

Answer:

The correct options are 1, 2 and 4.

Step-by-step explanation:

The given triangle is an equilateral triangle. All the sides of an equilateral triangle are same. All interior angles are equal with measure 60 degree.

The distance from the center of an equilateral triangle to the midpoint of a side is known as apothem. In the given figure letter a represents the apothem.

Point D is the midpoint of BC,

$b=\frac{BC}{2}=\frac{8.7}{2}=4.35$

Use Pythagorean theorem in triangle COD. So, option 1 is correct.

$OC^2=OD^2+DC^2$

$5^2=a^2+(4.35)^2$

$25=a^2+18.9225$

$a=\pm 2.46526$

$a\approx\pm 2.5$

The distance can not be negative, so the length of the apothem is approximately 2.5 cm. Option 4 is correct.

The line OC bisects the angle C.

$tan(30^{\circ})=\frac{a}{b}$

$\frac{1}{\sqrt{3}=\frac{a}{4.35}$

$a\approx\pm 2.5$

Therefore option 2 is correct.

The perimeter of an equality triangle is

$P=3a=3(8.7)=26.1$

Option 3 is incorrect.

$A=\frac{\sqrt{3}}{4}a^2=\frac{\sqrt{3}}{4}(8.7)^2=32.77$

Option 5 is incorrect.

Therefore options 1, 2 and 4 are correct.

3 0

3 years ago

Read 2 more answers

) 20% of computer chips from a certain manufacturer are defective. if 100 computer chips are purchased, what is the approximate

Furkat [3]

100%. 20/100 is equivalent to 20%, and because there is a 20% chance of a chip being a defect, it is 100%

4 0

3 years ago

Does anyone know this?

Flura [38]

Answer: A

Step by step explaining:
4.25x4.25x4.25=
76.76
Then if you round it would get you to your answer.

4 0

2 years ago

Read 2 more answers

the radio of used cars at a dealership is 7:5. if the dealership has 156 cars on the lot , how many are new ?

Serggg [28]

Answer:

91 used

65 new

Step-by-step explanation:

7 + 5 = 12

156/12 = 13

7(13) = 91

5(13) = 65

3 0

2 years ago