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2 years ago

Please help answer this question describe the steps for each method

Mathematics

2 answers:

Leokris [45]2 years ago

6 0

Answer:

1. You can use the x and y intercept

2. You may find and plot 2 points on the graph

3. You can use the slope and y intercept

Step-by-step ex

For 1. locate the x and y intercept

For 2. identify 2 points on the graph

For 3. Solve for the slope and locate the y intercept

Lilit [14]2 years ago

4 0

Answer:

1.Graphing the linear equations by constructing the table of values.

2.Graphing the linear equation using the slope and y-intercept (i.e. y=mx+b)

3.Graphing the linear equation by connecting x-intercept and y-intercept.

Step-by-step explanation:

$\huge\red{T}\pink{H}\orange{A}{N}\blue{K}\gray{S}$

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I don't need you to work it out, just theorem(s) i need to reach the answer :)

VikaD [51]

Not sure why such an old question is showing up on my feed...

Anyway, let $x=\tan^{-1}\dfrac43$ and $y=\sin^{-1}\dfrac35$ . Then we want to find the exact value of $\cos(x-y)$ .

Use the angle difference identity:

$\cos(x-y)=\cos x\cos y+\sin x\sin y$

and right away we find $\sin y=\dfrac35$ . By the Pythagorean theorem, we also find $\cos y=\dfrac45$ . (Actually, this could potentially be negative, but let's assume all angles are in the first quadrant for convenience.)

Meanwhile, if $\tan x=\dfrac43$ , then (by Pythagorean theorem) $\sec x=\dfrac53$ , so $\cos x=\dfrac35$ . And from this, $\sin x=\dfrac45$ .

So,

$\cos\left(\tan^{-1}\dfrac43-\sin^{-1}\dfrac35\right)=\dfrac35\cdot\dfrac45+\dfrac45\cdot\dfrac35=\dfrac{24}{25}$

7 0

3 years ago

Will give brainliest-H(t)=-16t^2+28t

____ [38]

For this case we have the following equation:
H (t) = - 16t ^ 2 + 28t
When the dolphin finishes a jump, then the height is equal to zero.
We have then:
-16t ^ 2 + 28t = 0
We look for the roots of the polynomial:
t1 = 0
t2 = 1.75 s
Therefore, the dolphin takes 1.75 seconds to make a jump.
Answer:
it will take for the dolphin to make one jump about:
t = 1.75 s

4 0

3 years ago

Add and Simplify. <br> (2x-y-2z-6)+(-6x+4y+3z+8)

asambeis [7]

Answer:

-4x + 3y + z + 2

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Evaluate this expression for a = 3 and b = 4.

Vladimir79 [104]

I think it’s A I hope it helps

8 0

2 years ago

What’s the answer need help

e-lub [12.9K]

Answer:

D. last option

Step-by-step explanation:

distribute the exponents outside of parentheses to terms in side to get

x^10 y^20 z^5 on top

and x^2 y^2

then you can subtract the exponents of like terms from numerator and denominator to get

x^8 y^18 z^5

5 0

2 years ago

Please help answer this question describe the steps for each method​

Please help answer this question describe the steps for each method