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3 years ago

Please I Really Need Help Fast

Mathematics

2 answers:

fredd [130]3 years ago

6 0

Answer:

x=12 i am pretty sure idk let me know if i am right

Step-by-step explanation:

Butoxors [25]3 years ago

3 0

Yea I think that you are right

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What is the slope of all lines parallel to the line 4x-5y+-1?

Bond [772]

Given equation of the line ,

$\implies 4x - 5y +(-1) = 0$

Simplify ,

$\implies 4x - 5y - 1 = 0$

Transpose terms to RHS ,

$\implies 5y = 4x - 1$

Divide both sides by 5 ,

$\implies \boxed{ y =\dfrac{4}{5}x -\dfrac{1}{5}}$

Now we know the slope intercept form of the line as $y = mx + c$ we have ,

$m =\dfrac{4}{5}$

As we know that the slope of all parallel lines are same . Henceforth ,

$m_{|| \ lines } =\dfrac{4}{5}$

5 0

2 years ago

Solve the triangle A = 2 B = 9 C =8

VARVARA [1.3K]

Answer:

$\begin{gathered} A=\text{ 12}\degree \\ B=\text{ 114}\degree \\ C=54\degree \end{gathered}$

Step-by-step explanation:

To calculate the angles of the given triangle, we can use the law of cosines:

$\begin{gathered} \cos (C)=\frac{a^2+b^2-c^2}{2ab} \\ \cos (A)=\frac{b^2+c^2-a^2}{2bc} \\ \cos (B)=\frac{c^2+a^2-b^2}{2ca} \end{gathered}$

Then, given the sides a=2, b=9, and c=8.

$\begin{gathered} \cos (A)=\frac{9^2+8^2-2^2}{2\cdot9\cdot8} \\ \cos (A)=\frac{141}{144} \\ A=\cos ^{-1}(\frac{141}{144}) \\ A=11.7 \\ \text{ Rounding to the nearest degree:} \\ A=12º \end{gathered}$

For B:

$\begin{gathered} \cos (B)=\frac{8^2+2^2-9^2}{2\cdot8\cdot2} \\ \cos (B)=\frac{13}{32} \\ B=\cos ^{-1}(\frac{13}{32}) \\ B=113.9\degree \\ \text{Rounding:} \\ B=114\degree \end{gathered}$ $\begin{gathered} \cos (C)=\frac{2^2+9^2-8^2}{2\cdot2\cdot9} \\ \cos (C)=\frac{21}{36} \\ C=\cos ^{-1}(\frac{21}{36}) \\ C=54.3 \\ \text{Rounding:} \\ C=\text{ 54}\degree \end{gathered}$

3 0

1 year ago

I BET YOU WONT ANSWER THIS PLZZZ ANSWER NO ONE HELPING ME

vichka [17]

Hello!

Your answer is the second option.

Hope this helps!

8 0

3 years ago

Read 2 more answers

What type of number is −0.5/ −0.5

Ede4ka [16]

Answer:

$\frac{ - 0.5}{ - 0.5} = 1 \\$

1 is a whole number, an integer, and rational.

Step-by-step explanation:

HOPE THIS HELPS.

7 0

1 year ago

Use the Pythagorean theorem to find the missing length in the following right triangle.

lesantik [10]

Hello there!

The Pythagorean Theorem is:

a² + b² = c²

We have b = 48 and c = 50

Remember: The hypotenuse is always longer.

a² + 48² = 50²

a² + 2304 = 2500

a² = 2500 - 2304

a² = 196

a = √196

a = 14

The missing length is 14.

Let me know if you have any questions. As always, it is my pleasure to help students like you!

6 0

3 years ago

Read 2 more answers