The compound nickel (III) chloride dihydrate has mole(s) of water for every mole(s) of ionic compound.three, two

two, three

one, two

two, one

Answers

Answer 1

Answer: The compound nickel (III) chloride dihydrate has two moles of water for every one mole of ionic compound.
In each mole of ionic compound, there are two moles of water in this compound.

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Translate the sentence into an equation. The product of 8 and a number increased by 4 is 60.a. 8y + 4 = 60b. 4y + 8 = 56c. 8 ÷ y + 4 = 56d. y + 8 + 4 = 56
The number of copies made each week by teachers at Langley High School follows a bell-shaped distribution with a mean of 550 copies and standard deviation of 185 copies. Mr Thomas Made 782 copies last week. His z-score is at 1.25. Which of the following statements is best interpret his value
The graph below represents which system of inequalities?
The triangles are similar. If DE = 12, EF = 10, and BC = 5, find AB.
Given: 5 > x + 7. Choose the solution set. {x | x R, x > -2} {x | x R, x < -2} {x | x R, x > 2} {x | x R, x < 2}

Not sure how to solve 2sinxcosx+cosx=0 Could you help?

Answers

$2sinxcosx+cosx=0\n\ncosx(2sinx+1)=0\iff cosx=0\ \vee\ 2sinx+1=0\n\ncosx=0\ \vee\ 2sinx=-1\ /:2\n\ncosx=0\ \vee\ sinx=-(1)/(2)\n\nx=(\pi)/(2)+k\pi\ \vee\ x=-(\pi)/(6)+2k\pi\ \vee\ x=(7\pi)/(6)+2k\pi\ to\ k\in\mathbb{Z}$

Please help I’m stuck

Answers

Answer: your answer would be c (-12,-24)

Step-by-step explanation: the coordinates of R is (-2,-4) so you do 6 times -2 which gives you -12 and then 6 times -4 which gives you -24. You put the numbers together which makes (-12,-24).

I hope this helps you out stay safe.

C , just multiply by 6 because si getting bigger and the photo is dialated

Use linear combination. To solve system
-2x+7y=10
X-3y=-3

Answers

-2x + 7y = 10 ⇒ -2x + 7y = 10
   x - 3y = -3   ⇒ -2x + 6y = 6
      y = 4
   -2x + 7(4) = 10
   -2x + 28 = 10
   -28   -28
   -2x = -18
      -2 -2
   x = 9
      (x, y) = (9, 4)

so
use elimintation
multily second equation by 2
2x-6y=-6
add to first equation

2x-2x+7y-6y=10-6
y=4
subsitute
x-3(4)=-3
x-12=-3
add 12 to both sdies
x=9

x=9
y=4

Factor
3x ^2 +20x+12

Answers

$3x^2+20x+12=3x^2+18x+2x+12\n\n=3x(x+6)+2(x+6)=(x+6)(3x+2)$

How much will Ashley’s plan cost for the same number of texts as when Jumel’s costs $75? Show your work and write your answer in a sentence.Please help me out

Answers

Answer: In order to begin figuring that out, we need to know how both of their plans work.

Serena makes $9 per hour cutting lawns. Each day, she earns about $15 in tips. If Serena made no less than $110 on Monday, which inequality represents h, the number of hours she worked on Monday?15h+9<110

15h+9>110

9h+15<110

9h+15>110

Answers

Let h = number of hours she worked on Monday
Given that she makes $9 per hour, it is 9 x h or 9h.
If her tips is a fixed $15 amount, then we simply add 15.
9h + 15
This expression above is the amount she made last Monday.
Since she made no less than $110, meaning she made more than $110 last monday.
The final inequality is: 9h + 15 > 110.

Answer:

Let h = number of hours she worked on Monday

Given that she makes $9 per hour, it is 9 x h or 9h.

If her tips is a fixed $15 amount, then we simply add 15.

9h + 15

This expression above is the amount she made last Monday.

Since she made no less than $110, meaning she made more than $110 last monday.

The final inequality is: 9h + 15 > 110.

Step-by-step explanation:

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