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Alecsey [184]
3 years ago
11

Plz help and show work plz

Mathematics
1 answer:
MrRa [10]3 years ago
7 0

Answer:

3rd option

Step-by-step explanation:

The equation of a parabola in vertex form is

f(x) = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k ) = (- 1, - 25 ) , then

f(x) = (x - (- 1) )² - 25 , that is

     = (x + 1)² - 25 ← expand using FOIL

     = x² + 2x + 1 - 25

     = x² + 2x - 24

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Determine the solubility for cuc2o4(s) in pure water. Ksp for is 2. 9 × 10^-8
Elena-2011 [213]

Based on the elements and charges in Copper (II) Oxalate, CuC₂O₄(s), the solubility in pure water is 1.7 x 10⁻⁴ M.

<h3>What is the solubility of Copper (II) Oxalate in pure water?</h3>

The solubility equilibrium (Ksp) is 2.9 x 10⁻⁸ so the solubility can be found as:

Ksp = [Cu²⁺] [C₂O₄²⁻]

Solving gives:

2.9 x 10⁻⁸ = S x S

S² = 2.9 x 10⁻⁸

S = 1.7 x 10⁻⁴ M

Find out more on solubility at brainly.com/question/23659342.

#SPJ1

3 0
3 years ago
If a solid has a density of 4.0 g/cm^3, what volume provides 24 g of that<br> solid? Show work.
Troyanec [42]
<h3>Answer: 6 cm^3</h3>

This is the same as saying 6 cubic cm

====================================================

Work Shown:

d = density = 4 g/cm^3

m = mass = 24 g

v = volume = unknown

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

d = m/v

4 = 24/v

4v = 24 .... multiply both sides by v

v = 24/4 .... divide both sides by 4

v = 6 cm^3

6 0
4 years ago
Point that satisfies
Kobotan [32]

Answer: D. (4,4)


Step-by-step explanation:

1. You have the following expression:

y\leq x^{2}-3x+2

3. To find the point that satifies the expression shown above, you only need to substitute each one of them into the expression, as you can see below:

A. 3\leq 3^{2}-3(3)+2\\3\leq 2 (This is not true)

B. 2\leq 2^{2}-3(2)+2\\2\leq 0 (This is not true)

C. 1\leq 1^{2}-3(1)+2\\1\leq 0 (This is not true)

D. 4\leq 4^{2}-3(4)+2\\4\leq 6 (This is true)

4. Therefore, the correct answer is the option D, which is: (4,4)


6 0
3 years ago
Jenna has some chocolate tat she wants to give to her friends. She wants to give 1/5 of a pound of chocolate to each friend. If
NARA [144]

25 friends because 7*5=35

7 0
4 years ago
Find the value of L. Perimeter = 20. Width is 6. So what is L? On a square
Rashid [163]

Well first of all, that's not a square.  On a square, all 4 sides are
the same, and the length is the same distance as the width.  If the
width of a square is 6, and all four sides are the same, then the
perimeter is (4 x 6) = 24. 

So the shape in your question may be a rectangle, but it's definitely
not a square one.

The perimeter is the distance an ant has to walk if you put him down
on one corner and he walks all the way around the shape until he gets
back to where he started from. 
That's the perimeter.

If you set the ant down on the corner of a rectangle, then he walks the
length, then the width, the the length again, then the width again, and
he's back where he started.

That was 2 lengths and 2 widths ... the perimeter of every rectangle.

Take 2 widths away from the perimeter, and you have 2 lengths left.  OK ?

You said that the width of your rectangle is 6.  Two widths is 12.
Take the 2 widths away from the perimeter, and you're left with (20 - 12) = 8.
But that's 2 lengths !
So the length is half of 8  =  4 .

8 0
3 years ago
Read 2 more answers
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