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Trava [24]
3 years ago
8

Determine the standard form of the equation of the line that passes through (-7,8) and (0,2)

Mathematics
1 answer:
SpyIntel [72]3 years ago
6 0

B is the right answer according to the result of the equation. "<em>Thanks</em><em> </em><em>me</em><em>"</em><em> </em>if i've been helpful

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Which polynomial correctly combines the like terms and puts the given polynomial in standard form?
Minchanka [31]

Answer: -5x^3y^3+8x^4y^2-7xy^5+x^2y^4+8x^6

Step-by-step explanation:

-5x^3y^3+8x^4y^2-xy^5-2x^2y^4+8x^6+3x^2y^4-6xy^5

-5x^3y^3+8x^4y^2+(-xy^5-6xy^5)+(-2x^2y^4+3x^2y^4)+8x^6

-5x^3y^3+8x^4y^2+(-7xy^5)+(x^2y^4)+8x^6

-5x^3y^3+8x^4y^2-7xy^5+x^2y^4+8x^6

8 0
3 years ago
Read 2 more answers
Question 6 (1 point)
vlada-n [284]

Answer:

Zero

Step-by-step explanation:

3x - 7 = 3x - 9 + 2

3x - 7 = 3x - 7

Add 7 on both sides

3x = 3x

Subtract 3x you get 0.

Hope this helps.

4 0
3 years ago
In the interval 0º &lt; x &lt; 360°, find the values of x for which tan x= -0.6745
SSSSS [86.1K]
Tan(θ) = 3 tan(θ), 0° ≤ θ ≤ 360°

Solve for θ to the nearest degree.

tan(θ) = 3 tan(θ)

Subtract tan(θ) from both sides:

0 = 2 tan(θ)

Divide by 2 both sides:

tan(θ) = 0

If (x,y) is a point on the terminal ray of θ,

then tan(θ) = y/x = 0, and y = 0.

y = 0 ==> θ = 0°, 180°, or 360° in the interval 0° ≤ θ ≤ 360°.
7 0
3 years ago
A Cepheid variable star is a star whose brightness alternately increases and decreases. For a certain star, the interval between
sattari [20]

Answer:

a)

B'(t) = \dfrac{0.9\pi}{4.4}\cos\bigg(\dfrac{2\pi t}{4.4}\bigg)

b) 0.09

Step-by-step explanation:

We are given the following in the question:

B(t) = 4.2 +0.45\sin\bigg(\dfrac{2\pi t}{4.4}\bigg)

where B(t) gives the brightness of the star at time t, where t is measured in days.

a) rate of change of the brightness after t days.

B(t) = 4.2 +0.45\sin\bigg(\dfrac{2\pi t}{4.4}\bigg)\\\\B'(t) = 0.45\cos\bigg(\dfrac{2\pi t}{4.4}\bigg)\times \dfrac{2\pi}{4.4}\\\\B'(t) = \dfrac{0.9\pi}{4.4}\cos\bigg(\dfrac{2\pi t}{4.4}\bigg)

b) rate of increase after one day.

We put t = 1

B'(t) = \dfrac{0.9\pi}{4.4}\cos\bigg(\dfrac{2\pi t}{4.4}\bigg)\\\\B'(1) = \dfrac{0.9\pi}{4.4}\bigg(\cos(\dfrac{2\pi (1)}{4.4}\bigg)\\\\B'(t) = 0.09145\\B'(t) \approx 0.09

The rate of increase after 1 day is 0.09

8 0
3 years ago
After the strand of measurement why do you think that graphing and data analysis are easier? Please help ASAP!!! :(
Vikki [24]
It’s organized and you can see it more visually , gives you a way to double check and write down the data properly.
8 0
3 years ago
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