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3 years ago

13

So i’m doing a project and they want me to do a line bisector. so it’s just to cut the line, right? like i wouldn’t have to add

arrows to the end or anything?
sooo like —————-

^ that

<————->

^ that

•—————•

or that?

1 answer:

Sergeu [11.5K]3 years ago

7 0

Search up line bisector, i just wanna slap you, i know your mom thinks your a failure, such an idiot

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Someone help me ASAP I really need this

SVEN [57.7K]

Answer: reflection

Translation

Rotation

Rotation

Step-by-step explanation:

4 0

3 years ago

Solve 2sin2(x) – 5sin(x) – 3 = 0. Let u = sin(x). Which of the following is equivalent to the given equation?

Orlov [11]

Answer:

$x=(-1)^{k+1}\cdot \dfrac{\pi}{6}+\pi k,\ k\in Z$

Step-by-step explanation:

Consider the equation

$2\sin^2x-5\sin x-3=0$

Substitute

$u=\sin x$

into the equation:

$2u^2-5u-3=0$

This is quadratic equation, where

$D=(-5)^2-4\cdot 2\cdot (-3)=25+24=49\\ \\\sqrt{D}=7$

Hence,

$u_1=\dfrac{-(-5)-\sqrt{D}}{2\cdot 2}=\dfrac{5-7}{4}=-\dfrac{1}{2}\\ \\u_2=\dfrac{-(-5)+\sqrt{D}}{2\cdot 2}=\dfrac{5+7}{4}=3$

Now, use the substitution again:

1. When $u_1=-\dfrac{1}{2},$ then

$\sin x=-\dfrac{1}{2}\\ \\x=(-1)^k\sin^{-1}\left(-\dfrac{1}{2}\right)+\pi k,\ k\in Z\\ \\x=(-1)^k\cdot \left(-\dfrac{\pi}{6}\right)+\pi k,\ k\in Z\\ \\x=(-1)^{k+1}\cdot \dfrac{\pi}{6}+\pi k,\ k\in Z$

2. When $u_2=3,$ then

$\sin x=3$

This equation has no solutions, because the range of $\sin x$ is $[-1,1]$ and 3>1.

4 0

4 years ago

Read 2 more answers

Use the distributive property’s remove the parentheses in the following expression. <br> 8(m+5)=

Nookie1986 [14]

Answer:

8m + 40 = ???

Step-by-step explanation:

8m = -40

m = -5

6 0

3 years ago

Read 2 more answers

In a bag of apples, the ratio of red apples to green apples is 3:4. If the bag contains 60 red apples, how many green apples are

alekssr [168]

Hi there! The answer is 80 green apples.

In a bag of apples, the ratio of red apples to green apples is 3:4, so we must first realise that there is a total of 7 parts.

3 of these parts constist if red apples. In other terms 3 / 7 equals 60. Now divide by 3 to find 1 / 7. Hence, 1 / 7 equals 60 / 3 = 20 apples.

4 of the total 7 parts consist of green apples, so we must multiply the preceding outcome by 4 to find our answer. 4 / 7 equals 20 × 4 = 80 apples.

Therefore, there are 80 green apples in the bag.
~ Hope this helps you!

6 0

3 years ago

to solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second

Marizza181 [45]

Answer:

The resulting equation is

x^2/4+16x^2/9=1

Step-by-step explanation:

The given equations are:

3y=12x eq(1)

x^2/4+y^2/9=1 eq(2)

We need to isolate variable y in equation 1

Divide both sides of the equation with 3

3y/3 = 12x/3

y = 4x

Now, substitute the value of y=4x in second equation

x^2/4+y^2/9=1

x^2/4 + (4x)^2/9 = 1

The resulting equation is

x^2/4+16x^2/9=1

8 0

4 years ago

Read 2 more answers