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3 years ago

Which set of side lengths represents a triangle with 3 lines of reflectional symmetry?

Mathematics

2 answers:

marusya05 [52]3 years ago

6 0

Answer:

5,5,5

Step-by-step explanation:

Its Right on edge

3241004551 [841]3 years ago

5 0

Answer:

5, 5, 5

Step-by-step explanation:

i saw it on quizlet

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What is the ratio of lines b : c if A is 77°

stellarik [79]

Answer:

3rd option

Step-by-step explanation:

the ratio of b : c is the cos77° , that is

cos77° = $\frac{adjacent}{hypotenuse}$ = $\frac{b}{c}$ ≈ 0.224951054.

3 0

2 years ago

nicole is flying two kites. she has 104 feet of string out to one kite and 110 feet out to the other kite. the angle formed by t

tankabanditka [31]

Answer:

Step-by-step explanation:

Answer:

48.49 feet

Step-by-step explanation:

The diagrammatic sketch of the details given in the question was attached in the picture below.

From the picture below, the distance between the two kites is represented by (c) and can be calculated by using the cosine angle rule which is illustrated as:

$c^2 = a^2 + b^2 -2ab cos \ C$

where;

a = 110

b = 104

Cos C = 26°

Then;

$c^2 = 110^2 + 104^2 -2(110)(104) cos \ 26 \\ \\ c^2 = 12100 + 10816- 22880 ( 0.8988) \\ \\ c^2 = 22916- 20564.544 \\ \\ c^2 = 2351.456 \\ \\ c= \sqrt{2351.456} \\ \\ \mathbf{ c = 48.49 \ feet}$

8 0

3 years ago

Which property is represented by the following equation? 2 + (3 + 4) = (2 + 3) + 4

Marysya12 [62]

Answer:

associative prop

Step-by-step explanation:

7 0

4 years ago

A glass is 4/7 full . Then 70cm3 of orange juice is poured in . The glass is now 2/4 full. What is the total volume of the glss

Korolek [52]

Let
x--------------> total volume of a glass

we know that
(4/7)x-70=(2/4)x------------> (4/7)x-70=(1/2)x--------> 2*(4/7)x-2*70=x
(8/7)x-140=x

<span>multiplied by 7 the expresion
</span>7*(8/7)x-7*140=7*x-----------> 8x-980=7x--------> x=980 cm³

the answer is
<span>the total volume of the glass is 980 cm</span>³

3 0

3 years ago

Read 2 more answers

How to Factor r^2-5r-14

12345 [234]

Answer:

(r-7)(r+2)

Step-by-step explanation:

First, let's look at the -14. Possible factors for that number are (-2, 7) (2, -7) (1, -14) and (-1, 14).

Now, let's look at the -5. How can we make -5 with the pairs that we just found?

The only possible way is 2 and -7 (added together equals -5)

6 0

3 years ago

Read 2 more answers