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Nastasia [14]
3 years ago
7

PLS HELLLLLLPPPPPP MMEEEEEE

Mathematics
2 answers:
Mrrafil [7]3 years ago
6 0
The answer of this A -3
love history [14]3 years ago
5 0

Answer:

-3

Step-by-step explanation:

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Mmmmmmmmmmmmmmmmmm..................
fredd [130]
Hey there! :D

We are basically trying to find fractions that equal each other. 

3/12= 1/4  4/16= 1/4 

The first option applies. 

5/8= 5/8 (simplest form) 8/15= 8/15 (simplest form)

The second does not apply. 

1/6= 1/6 (simplest form) 5/30= 1/6 

The third option does apply. 

18/12= 3/2 3/2=3/2 (simplest form)

The fourth option does apply. 

The first, third, and fourth option are the answers. 

I hope this helps!
~kaikers 
7 0
3 years ago
Read 2 more answers
Which equation can be used to calculate the area of the shaded triangle in the figure below?
lozanna [386]

Answer:

A

Step-by-step explanation:

The area (A) of a triangle is calculated using the formula

A = \frac{1}{2} bh ( b is the base and h the perpendicular height )

here b = 14 and h = 4, hence

A = \frac{1}{2} (14 × 4) = 28

7 0
3 years ago
Convert -0.0647 to Scientific Notation
Firlakuza [10]

Answer:

6.47  x  10^-2

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Find the missing angle measures of the following figure ​
Lisa [10]

Answer:

1 = 68

2 = 68

3 = 125

Step-by-step explanation:

Hey there!

To find angle 1 all we have to do is subtract the given angles from 180 because remember all of the angles in a triangle add up to 180

180-73-39=68

1=68

angle 2 is vertical to angle 1 therefore they are congruent angles so

2 also equals 68

So we know that the interior angles in a 4 sided shape add up to equal 360

so to find 3 we subtract the given angles from 360

360-90-77-68=125

so 3 = 125

6 0
3 years ago
HELP! Find the value of sin 0 if tan 0 = 4; 180 < 0< 270
BabaBlast [244]

Hi there! Use the following identities below to help with your problem.

\large \boxed{sin \theta = tan \theta cos \theta} \\  \large \boxed{tan^{2}  \theta + 1 =  {sec}^{2} \theta}

What we know is our tangent value. We are going to use the tan²θ+1 = sec²θ to find the value of cosθ. Substitute tanθ = 4 in the second identity.

\large{ {4}^{2}  + 1 =  {sec}^{2} \theta } \\  \large{16 + 1 =  {sec}^{2} \theta } \\  \large{ {sec}^{2}  \theta = 17}

As we know, sec²θ = 1/cos²θ.

\large \boxed{sec \theta =   \frac{1}{cos \theta} } \\  \large \boxed{ {sec}^{2}  \theta =  \frac{1}{ {cos}^{2}  \theta} }

And thus,

\large{  {cos}^{2}  \theta =  \frac{1}{17}}   \\ \large{cos \theta =  \frac{ \sqrt{1} }{ \sqrt{17} } } \\  \large{cos \theta =  \frac{1}{ \sqrt{17} }  \longrightarrow  \frac{ \sqrt{17} }{17} }

Since the given domain is 180° < θ < 360°. Thus, the cosθ < 0.

\large{cos \theta =   \cancel\frac{ \sqrt{17} }{17} \longrightarrow cos \theta =  -  \frac{ \sqrt{17} }{17}}

Then use the Identity of sinθ = tanθcosθ to find the sinθ.

\large{sin \theta = 4 \times ( -  \frac{ \sqrt{17} }{17}) } \\  \large{sin \theta =  -  \frac{4 \sqrt{17} }{17} }

Answer

  • sinθ = -4sqrt(17)/17 or A choice.
4 0
3 years ago
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