All categories

4 years ago

Please help me !!! :(

Mathematics

1 answer:

Rudik [331]4 years ago

6 0

Multiply the 2nd equation by 4 and add the first equation.
2x² = 8
x² = 4
x = ±√4 = ±2

Substitute x² = 4 into either equation to get y² = 0.

Appropriate choices are
E. (2, 0)
F. (-2, 0)

You might be interested in

choose a number between 67 and 113 that is a multiple of 4, 8, and 16 . Write all the numbers that she could choose. If there is

Allushta [10]

2 is a multiple of 4, so anything that's a multiple of 4 will automatically be a multiple of 2 so 3 x 4 = 12 so multiples of 12 that are between 67 and 113 are...? 12 x 6 = 72 12 x 7 = 84 12 x 8 = 96 12 x 9 = 108 <span> 72 or 84 or96 or 108 all are divisible by 2,3 and 4 all fall between 67 and 112</span>

6 0

4 years ago

Please help meeeeeee

LuckyWell [14K]

Answer:

it's the bottom left one

Step-by-step explanation:

Im just a kid, don't ask

So -1/4x+1/2 x would be 1/4 x because -0.25+0.5=0.25

translating 2/3 into 4/6, so we do 4/6-2/6 which would be 1/2.

:) Im an idiot lol

5 0

2 years ago

Read 2 more answers

Let A = {a,b,c} and let B = {1,2,3}. Determine n(AB)<br>

sdas [7]

Answer:

Step-by-step explanation:

really dude, im in 7th grade and answerd this.

3 0

3 years ago

Find the x and y of x-3y=15 and -2x-4y=10

Minchanka [31]

Use elimination to create a one variable equation.

x-3y=15 -> 2x-6y=30

2x-6y=30

+(-2x-4y=10)

------------------

-10y=40

Then solve (for y in this case).

y=-4

Now we can use the value for y to solve for x.

x-3y=15 -> x-3(-4)=15 -> x=3

3 0

3 years ago

Let f be a continuous function on the interval [a, b]. Determine if the following statement is true or false. The expression lim

andre [41]

Answer:

The correct answer is B.

Step-by-step explanation:

We have the expression:

$\displaystyle \lim_{n\to\infty}\sum_{i=1}^{n}f(x_i\, ^\star)\Delta x$

In this case, B is the correct answer.

B states that any sample point can be chosen without affecting the limit.

This is a true statement. Regardless of which point we choose for our sample point, since n approaches infinity, we will have infinite partitions.

Hence, this will not affect the sum of our expression.

A and C are false because we have infinite partitions, so the statements cannot be true. D is not true simply because the left-hand values do not have to be the same as the midpoint-values depending on the behavior of the function for [a, b].

5 0

3 years ago