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Hunter-Best [27]
3 years ago
15

PLEASE HELP ASAP FAST ASAP

Mathematics
2 answers:
snow_lady [41]3 years ago
6 0

Answer:

mike did i think im super sooooo sorry if im wrong

Step-by-step explanation:

aleksandr82 [10.1K]3 years ago
3 0

Answer:

Atoms found in nature are either stable or unstable. ... An atom is unstable (radioactive) if these forces are unbalanced; if the nucleus has an excess of internal energy. Instability of an atom's nucleus may result from an excess of either neutrons or protons

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Question Which of these strategies would eliminate a variable in the system of equations? 2x - y = 11 5x + 3y = -11 How many pos
kenny6666 [7]

Answer:

Elimination (multiplication and subtraction)

There is 1 solution

Step-by-step explanation:

The only way to solve this system of equations is by elimination (multiplication). Let's say that we want to cancel out the x. You multiply the first equation by 5 and you multiply the second equation by 2.

Your equations now are:

10x-5y=55 and 10x+6y=-22

You can subtract these equations to get -11y = 77.

Now that we know that y = -7, we can substitute y in to solve x.

10x-5(-7) = 55

10x=20

x=2

Final answer (2,-7)

3 0
3 years ago
The theatre has 4 chairs in a row. There are 5 rows. Using rows as your unit of measurement, what is the perimeter?
brilliants [131]

Answer:

Step-by-step explanation:

A theatre has 4 chair in a row; lets draw that out

Let's pretend that this is a chair: ♦

So we have 4 chairs in a row

♦ ♦ ♦ ♦

And there are 5 rows

♦ ♦ ♦ ♦

♦ ♦ ♦ ♦

♦ ♦ ♦ ♦

♦ ♦ ♦ ♦

♦ ♦ ♦ ♦

Let's find the perimeter;

4 + 5 + 4 + 5

=18

The perimeter is 18 rows.

5 0
2 years ago
A campground has cabins that can each hold 28 campers there are 148 campers visiting the campground.how many cabins are full if
Rainbow [258]

For this case, the first thing we must do is define variables.

We have then:

x: number of cabins

y: number of campers

We now write the equation that models the problem:

y = 28x

We know that there are 148 campers.

Therefore, substituting y = 148 in the given equation we have:

148 = 28x

From here, we clear the value of x:

x = \frac{148}{28}\\x = 5.29

Therefore, the number of full cabins is:

x = 5

Answer:

The number of full cabins is:

x = 5

6 0
3 years ago
Read 2 more answers
Consider the equations y = √x and y = x^2 - 1
lord [1]
<h3>Answer:</h3>

(x, y) ≈ (1.49021612010, 1.22074408461)

<h3>Explanation:</h3>

This is best solved graphically or by some other machine method. The approximate solution (x=1.49, y=1.221) can be iterated by any of several approaches to refine the values to the ones given above. The values above were obtained using Newton's method iteration.

_____

Setting the y-values equal and squaring both sides of the equation gives ...

... √x = x² -1

... x = (x² -1)² = x⁴ -2x² +1 . . . . . square both sides

... x⁴ -2x² -x +1 = 0 . . . . . polynomial equation in standard form.

By Descarte's rule of signs, we know there are two positive real roots to this equation. From the graph, we know the other two roots are complex. The second positive real root is extraneous, corresponding to the negative branch of the square root function.

8 0
3 years ago
1. Amanda weighs 48 pounds (lbs). The physician ordered a drug that is delivered in the proportion of milligrams (mg) of medicat
allsm [11]
48 pounds/1 *  1 kg/2.2 pounds=<span>21.82 kg
amanda weighs 21.82 kg, so the amount of medication that needs to be administered should be 21.82 mg.</span>
4 0
3 years ago
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