PLZ ANSWER ASAP, I AM ON A TIMED QUIZ!!

hjlf

Answer:

b) y=2x-3 y-int.=-3 x= 1/2 (think of rise over run)= up 2 over 1. C) IDK D) y=2/4+3 E)7/2-8

Step-by-step explanation:

<h2>when you solve in slope intercept form ex. 3x+4y=12 move 3x by subtracting to the other side. 3x-3x=0 cancel then your left with 4y=-3 (you moved to both sides)+ 12 divide the equation by 4. left with 4divided by 4 cancels left with y= -3+12 divided by 4= y=3/4+8</h2><h2 /><h2>Remember if positive subtract if negative number add to both sides.</h2>

3 0

3 years ago

Given triangle ABC, which equation could be used to find the measure of ∠B? right triangle ABC with AB measuring 6, AC measuring

rjkz [21]

Answer:

$cos B = \dfrac{2\times \sqrt5}{5}$ is the correct answer.

Step-by-step explanation:

We are given a right angled $\triangle ABC$ with the side measurements as:

AB = 6

AC = 3

BC = 3 $\sqrt5$

In a right angled triangle, the angle of $90^\circ$ is the <em>largest angle and the side opposite to the right angle is the largest.</em>

We are given that the side BC = 3 $\sqrt5$ which has a value greater than 6 which means side BC is the largest side.

And angle opposite to BC is $\angle A$ is the largest i.e.

$\angle A=90^\circ$

Please refer to the attached image for the given dimensions of the triangle.

Now, we can apply trigonometric rules to easily find out the value of $\angle B$

$cos \theta = \dfrac{Base}{Hypotenuse}\\OR\\cos B = \dfrac{AB}{BC}\\\Rightarrow cos B = \dfrac{6}{3\sqrt5}\\\Rightarrow cos B = \dfrac{2}{\sqrt5}\\\Rightarrow cos B = \dfrac{2\times \sqrt5}{\sqrt5 \times \sqrt5}\\\Rightarrow cos B = \dfrac{2\times \sqrt5}{5}$

8 0

3 years ago

Change this radical to an algebraic expression with fractional exponents 3√a

aliya0001 [1]

$\bf ~\hspace{7em}\textit{rational exponents}
\\\\
a^{\frac{ n}{ m}} \implies \sqrt[ m]{a^ n}
~\hspace{10em}
% rational negative exponent
a^{-\frac{ n}{ m}} \implies
\cfrac{1}{a^{\frac{ n}{ m}}} \implies \cfrac{1}{\sqrt[ m]{a^ n}}
\\\\[-0.35em]
\rule{34em}{0.25pt}\\\\
\sqrt[3]{a}\implies \sqrt[3]{a^1}\implies a^{\frac{1}{3}}$

5 0

3 years ago

Becas goal is to practice piano for 20 minutes for every 5 minutes of lesson she takes if she takes a 20 minute piano lesson thi

Eduardwww [97]

Answer:

This week Beca will practice for 80 minutes for her 20 minutes piano lessons.

Step-by-step explanation:

Duration of Beca's practice for every 5 minutes lessons = 20 minutes

Duration of Beca's practice if she take 1 minute piano lesson:

$\frac{20 min}{5} = 4 minutes$

So, duration of Beca's practice if she takes 20 minutes of piano lessons:

$20\times 4minutes=80 minutes$

This week Beca will practice for 80 minutes for her 20 minutes piano lessons.

3 0

3 years ago

A rhombus where the left side of the horizontal diagonal has length 2 meters and the right side of the horizontal diagonal has l

Kazeer [188]

Answer:

15 m2 is the answer

Step-by-step explanation:

The side of a rhombus is 15 m2. If the length of one diagonal of the rhombus is 8 cm, then find length of the other diagonal. The side of a rhombus is 15 m2. If the length of one diagonal of the rhombus is 8 cm, then find length of the other diagonal. so, the answer is 15 m2

7 0

2 years ago