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Nutka1998 [239]
3 years ago
7

Complete the equation of the line whose y-intercept is (0, -1) and slope is 4. Stuck?

Mathematics
1 answer:
baherus [9]3 years ago
6 0

Answer:

y = 4x - 1

Step-by-step explanation:

equation of a line in slope-intercept form: y = mx + b

m is the slope and b is the y-intercept

y = 4x - 1

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Please Help will Give brainlist.
poizon [28]
Constant of proportionality is 4

equation: x/y = 4

explanation:
let's take 20 and 5 for example, if you divide 20 by 5, you will 4 of course. that's the proportionality for the first one. if you continue to divide x value by y value you will get 4. for the last two you would divide 28 by 4 and multiply 8 by 4.
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3 years ago
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What is the value of the product (4 – 2i)(6 + 2i)? 20 – 4i 20 + 16i 28 + 16i 28 – 4i
Darya [45]

(4 – 2i)(6 + 2i)

FOIL

First : 4*6 =24

Outer: 4*2i = 8i

Inner: -2i* 6 = -12i

Last: -2i*2i = -4i^2 =-4(-1) =4

Add together

24+8i-12i+4

28-4i

Answer: 28-4i

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3 years ago
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Bryan has a square parcel of land that is 120 yards long and 120 yards wide. The land is planted with Bermuda grass and surround
bagirrra123 [75]
Diagonal = s * sqrt 2.....with s(side) being 120 yds
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7 0
3 years ago
Find the length of side y
Serggg [28]

Answer:

\large\boxed{y=76.3359\ cm\approx76.3\ cm}

Step-by-step explanation:

Use cosine:

cosine=\dfrac{adjacent}{hypotenuse}

We have

adjacent=73\ cm\\hypotenuse=y

and the angle 17°.

\cos17^o\approx0.9563

Substitute:

\dfrac{73}{y}=0.9563             <em>convert the decimal to the fraction</em>

\dfrac{73}{y}=\dfrac{9563}{10000}          <em>cross multiply</em>

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y=\dfrac{730000}{9563}

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8 0
3 years ago
8. 2x2 + 3x when x = 3​
chubhunter [2.5K]

Answer:

27

Step-by-step explanation:

Substitute x = 3 into the expression

2(3)² + 3(3) = 2(9) + 9 = 18 + 9 = 27

4 0
3 years ago
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