All categories

2 years ago

Halp me plz.........................................

Mathematics

1 answer:

KengaRu [80]2 years ago

4 0

The second one. 4/6 and 2/3

You might be interested in

Solve the proportion below.

raketka [301]

Answer:

Does the answer help you?

7 0

2 years ago

20.) A=49.23 degrees, c=54.8Solve the right triangle. Express angles in decimal degrees.

vivado [14]

$\begin{gathered} a=41.50 \\ b=35.78 \\ B=40.76\text{ \degree} \\ \end{gathered}$

Explanation

Step 1

a) let

$\begin{gathered} A=49.23\text{ \degree} \\ c=54.8\text{ \degree} \end{gathered}$

b) b value

to find the measure of side b we can use cosine function

$\begin{gathered} cos\theta=\frac{adjacent\text{ side}}{hypotenuse} \\ replace \\ cos\text{ 49.23=}\frac{b}{54.8} \\ b=54.8*cos49.23 \\ b=35.78 \end{gathered}$

c) angle B

to find the measure of Angle B we can use sine function

$\begin{gathered} sin\theta=\frac{opposite\text{ side}}{hypotenuse} \\ replace \\ sin\text{ B=}\frac{35.78}{54.8} \\ sin\text{ B= 0.65}\Rightarrow inverse\text{ function to isolate B} \\ B=\sin^{-1}(0.65) \\ B=40.76 \end{gathered}$

d) side a

$\begin{gathered} sin\theta=\frac{opposite\text{ side}}{hypotenuse} \\ sin\text{ A=}\frac{a}{c}=\frac{\placeholder{⬚}}{\placeholder{⬚}} \\ sin\text{ 49.23=}\frac{a}{54.8} \\ multiply\text{ both sides by 54.8} \\ 54.8s\imaginaryI n\text{49.23=}\frac{a}{54.8}*54.8 \\ 41.50=a \end{gathered}$

so, the answer is

$\begin{gathered} a=41.50 \\ b=35.78 \\ B=40.76\text{ \degree} \\ \end{gathered}$

I hope this helps you

7 0

4 months ago

Who was the first person to prove the pythagorean theorem?

sergeinik [125]

Pythagoras & his colleagues

3 0

2 years ago

Read 2 more answers

Math help 100 points <br><br> ALSO CHECK OUT MY PROFILE (MANY UNANSWERED QUESTIONS)!!!!!

Studentka2010 [4]

Midpoint formula:
$( \frac{x1 + x2}{2} \: \frac{y1 + y2}{2} )$
1. Point 1 (-2,2)
Point 2 (4,-1)

Midpoint: (-2+4/2, 2-1/2)
(2/2, 1/2)
(1, 1/2)

2. Point 1 (-3,-5)
Point 2 (2, 5)

Midpoint: (-3+2/2, -5+5/2)
(-1/2, 0)

Distance between two points formula:

$\sqrt{(x2 - x1) {}^{2} + (y2 - y1) {}^{2} }$
1. Point 1 (-2, 2)
Point 2 (4, -1)

$\sqrt{(4 + 2) {}^{2} + ( - 1 - 2) {}^{2} }$
$\sqrt{6 {}^{2} + ( - 3) {}^{2} }$
$\sqrt{36 + 9}$
$\sqrt{45}$
$6.7$
2. Point 1 (1, 2)
Point 2 (4, 7)

$\sqrt{(4 - 1) {}^{2} + (7 - 2) {}^{2} }$
$\sqrt{3 {}^{2} + 5 {}^{2} }$
$\sqrt{9 + 25}$
$\sqrt{34}$
$5.8$

3 0

2 years ago

Read 2 more answers

You go for a hike and in 4 hours you hike 12 miles what is the rate

zubka84 [21]

4 hours equals 12 miles
1 hour equals 3 miles

5 0

2 years ago