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4 years ago

Geometry math question

Mathematics

2 answers:

Sloan [31]4 years ago

6 0

Answer is C (108).

All 4 angles combined are always 360 degrees. In this case if you add 2 angles combined thehy are always 180 degrees.

If we know angle 1 is 72 than angle 3 is 180-72
And 180-72 =108

denis23 [38]4 years ago

3 0

Since Angle 1 and 3 are vertical angles, they are congruent.

In this case, because Angle 1 is 72°, Angle 3 is 72°, or D.

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What is 17+6-6+6 divided by 6 + 17.

alina1380 [7]

Answer:

$\boxed{\bold{1}}$

Using Pedmas rule:

$\dashrightarrow \sf \dfrac{17+6-6+6}{6+17}$

subtract: 6-6 = 0

$\dashrightarrow \sf \dfrac{17+6}{23}$

simplify the following

$\dashrightarrow \sf \dfrac{23}{23}$

the numerator and denominator cancels out

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3 years ago

Read 2 more answers

Solve for x. A) 6 C) 4 B) 12 D) 2

arsen [322]

Answer:

x=4

Step-by-step explanation:

go it right on edge

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3 years ago

In Exercise, sketch the graph of the function. f(x) = 0.5 ln x

BartSMP [9]

Answer:

To $f(x)=0.5ln(x)}$

view graph

Step-by-step explanation:

To $f(x)=0.5ln(x)}$ we can say that $f(x)=y=0.5ln(x)}$ then we find cut points. For y=0 $0=0.5ln(x)$ ⇒ $0=lnx\\e^{0}=e^{lnx}\\1=x$

as can be seen in the graph for any value of y greater that 0, x will always take values greater than 1, for values of y less than 0, x will take values less than 1

4 0

4 years ago

In triangle △ABC, ∠ABC=90°, BH = altitude

Ainat [17]

Answer: The exact length of segment HC is sqrt(3) units

The approximate length is roughly 1.73205080756888 (round that however you need to)

==============================================

Work Shown:

Let x = length of HC

Since AH = 3*HC, this means AH = 3*x

Draw out the picture. This step is optional but helpful in my opinion. The drawing is attached below.

After adding in the altitude BH, we have three similar triangles. So we can form the proportion shown below to solve for x

HC/BH = BH/AH

HC/3 = 3/AH ... replace BH with 3

x/3 = 3/AH ... replace HC with x

x/3 = 3/(3x) ... replace AH with 3x

x/3 = 1/x ... reduce

x*x = 3*1 ... cross multiply

x^2 = 3

x = sqrt(3) ... which is shorthand for "square root"

HC = sqrt(3)

HC = 1.73205080756888 which is approximate

3 0

3 years ago

In a parallelogram one side is 5x-4 and the consecutive side 2x+3.If the perimeter is 166cm,find the lengths of the sides.

evablogger [386]

Answer:

5x - 4 = 56

2x + 3 = 27

Step-by-step explanation:

2(5x - 4 + 2x + 3) = 166

10x - 8 + 4x + 6 = 166

14x - 2 = 166

+ 2 +2

14x = 168

divide both sides of the equal sign by 14

5(12) - 4 = 60 - 4 = 56

2(12) + 3 = 24 + 3 = 27

4 0

4 years ago