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Talja [164]
3 years ago
15

Help! It’s geometry: finding angles measures between intersecting lines

Mathematics
1 answer:
astraxan [27]3 years ago
3 0

Answer:

x=17

Step-by-step explanation:

So first we know that vertical angles are equal

And for the first part we have a 73 and x

So 73+x=90 Becuase in this situation if you add them up its gonna give you a right angle

you’ll get 17

SO 17 is X

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Can someone help me with this problem? It’s Special Right Triangles: Decimal Answer. Round to the nearest tenth. Thank you ! 10
Triss [41]

Answer:

h = 1.4

c = 2.8

Step-by-step explanation:

For each problem, remember the special triangle side ratios then use a proportion. To solve, isolate the variable.

For the triangle with the variable h:

Since two of the angles are 45, this is an isosceles triangle. All isosceles triangles have two equal sides that are not the hypotenuse.

In a right isosceles triangle, the ratio for regular side to hypotenuse is 1 to √2.

\frac{1}{\sqrt2} =\frac{h}{2} \\h = 2\frac{1}{\sqrt2} \\h = \frac{2}{\sqrt2} \\h = \frac{2\sqrt2}{2} \\h = \sqrt{2}

h = √2

h ≈ 1.4

For the triangle with the variable c:

The is an equilateral triangle cut in half because the angles are 30 and 60.

The side ratio of altitude to hypotenuse is √3 to 2.

\frac{\sqrt{3} }{2} =\frac{c}{4} \\\sqrt{3} = \frac{c}{2}\\2\sqrt3 = c

c = 2√2

c ≈ 2.8

5 0
4 years ago
X = −3 y = 4 and z = −5 <br><br> Work out the value of x + 2y − 3z
solniwko [45]

Answer:

20

Step-by-step explanation:

-3+ 2(4) - 3(-5)

= -3+ 8 + 15

=20

4 0
3 years ago
Which undefined term is needed to define an angle?
Nataly [62]
C. Ray 
Hope this helps
7 0
3 years ago
Solve 4x2 - x + 5 = 0.
algol [13]

Answer:

x

=

1

+

i

√

79

8

,

1

−

i

√

79

8

Step-by-step explanation:

5 0
3 years ago
Factor 3x2 - 15x - 42.
11Alexandr11 [23.1K]
3 x^{2} - 15x - 42
(x-7)(x+2)
 x-7=0 x+2=0
 x=7,-2
8 0
3 years ago
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