3 years ago

What is the answer of this? 4x²-9y²+36y-36=0

Mathematics

1 answer:

gavmur [86]3 years ago

8 0

Answer:

x = + - 3(y-2)

this it ut

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How do you writ 1.660 in scientific notation

belka [17]

Answer:

$1.66 * 10^{0}$

Step-by-step explanation:

1.660

we would only move the decimal point once.

1.66 * 10^0

10^0 = 1

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3 years ago

A line passes through the points (–1, –5) and (4, 5). The point (a, 1) is also on the line.

IgorC [24]

Answer:

a = 2

Step-by-step explanation:

Let's find the equation of the line using the 2 points given.

Let's call -1 as x_1 and -5 as y_1

also, 4 as x_2 and 5 as y_2

The equation of line is :

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

<em>Let's plug the points and get the equation of the line:</em>

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)\\y+5=\frac{5+5}{4+1}(x+1)\\y+5=2(x+1)\\y+5=2x+2\\y=2x-3$

Now, to find a, we substitute a in x and 1 in y of the equation of the line we just got:

$y=2x-3\\1=2(a)-3\\1=2a-3\\2a=4\\a=\frac{4}{2}=2$

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3 years ago

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John is giving out chocolate to his friends.if he want to give each friend 2/3 of chocolate bar and he has 13 friends,how many c

Nikolay [14]

Multiply 13x2/3 and you should get 8.6

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3 years ago

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I NEED HELP ASAP PLS<br><br> Select the correct graphed line for the equation below.

ddd [48]

2. Sorry if I’m wrong but that’s what I just put

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3 years ago

A flashlight battery manufacturer makes a model of battery whose mean shelf life is three years and four months, with a standard

telo118 [61]

Answer:

17000 batteries

Step-by-step explanation:

Three years and one month is equivalent to the mean minus one standard deviation.

Three years and seven months is equivalent to the mean plus one standard deviation.

For a normal distribution, we know that 68% of population is between mean ± 1 sd, then can be expected that 25000*68% = 17000 of batteries last between three years and one month and three years and seven months

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3 years ago

What is the answer of this? 4x²-9y²+36y-36=0 ​

What is the answer of this? 4x²-9y²+36y-36=0