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2 years ago

Write the equation of the line that goes through (-3.9, -1.4) and is PERPENDICULAR to 6x + 2y = 9

Mathematics

1 answer:

FrozenT [24]2 years ago

4 0

9514 1404 393

Answer:

10x -30y = 3

Step-by-step explanation:

In general form, you can start by swapping the x- and y-coefficients, negating one of them. To find the new constant for the equation, substitute the values for the given point

2x -6y = 2(-3.9) -6(-1.4)

2x -6y = 0.6

Multiplying by 5 will make the numbers be integers, so will put the equation in standard form.

10x -30y = 3

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2. Jason can put his money in a savings account and earn about 12 cents in interest this month, or he can

julsineya [31]

Answer:

12 cents

Step-by-step explanation:

opportunity cost of the next best option forgone when one alternative is chosen over other alternatives

by loaning matt the money he forgoes the opportunity to earn 12 cents in interest. this is his opportunity cost

8 0

2 years ago

Mold grows on bread and every day it doubles by the eighth day the entire bread is covered with mold when was half the bread cov

Brut [27]

Answer:

The mold will cover half the area as much are one day before it.

Step-by-step explanation:

Given:

Every day the mold on bread grows doubles

And by 8th day entire bread covered with it.

To Find:

When was half the bread covered by mold.

Solution:

It is said that area covered by mold doubles on each day

Total days taken to cover entire bread are 8

Let Area of bread be A

So Area covered (A) corresponds to 8 days with doubling.

So on previous day it should What ever area on 8th day/2

i.e A(8)/2

Similar on 6th day A(7)/2

So on 5ht day =A(6)/2 ,4th= A(5)/2, on 3rd= A(4)/2, on 2nd=A(3)/2

On 1st =A(2)/2

So we required Area= half of total.

<em>One day before the 8th day will be 7th day</em>

<em>on that day it will cover half are so that on next day will cover the double of the previous area consumed.</em>

4 0

3 years ago

X2-5x+10=0 is it quadratic equation? how can i identify the value of a,b,c? help

natali 33 [55]

A= 1
B= -5
C= 10

In order to figure it out, you can think about it like this..

4 0

3 years ago

Use the information to answer the following question.

trasher [3.6K]

Answer:

D is the answer

Step-by-step explanation:

For a: g(x) = 1 when x = 1, for f(x) 1^2 - 2(1) + 2 = 1, a is true.

For b: Both functions do have all real numbers for their domain, b is true

For c: the y-intercept of g(x) is x = 0, for f(x), it is 0^2 - 2(0) + 2 = 2, c is true

For d: g(3) = 7, f(3) = 3^2 - 2(3) + 2 = 5, d is false.

3 0

2 years ago

Superman bought two leggings for $25.80 each at KryptonCromie. How much did he spend?

kondor19780726 [428]

Answer:

51.6

Step-by-step explanation:

$25.80 + $25.80 =

25.80 x 2.

7 0

2 years ago

Read 2 more answers