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polet [3.4K]
3 years ago
15

SOS EASY MATH PLZ PLZ

Mathematics
2 answers:
Alborosie3 years ago
7 0
A isn’t correct because there is 2 O’s on the left side and 3 on the right
B is incorrect because there is an S on the right but not on the left
C is incorrect because there are 2 Ca on the left side and 1 on the right
D is balanced as there are 2Na ok each side, 2Cl on each side,2H, and 1 SO4 on each side
Vlada [557]3 years ago
3 0
It’s B I just took this!!
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The leading brand of cosmetics in the US had about 20% of the total sales in the industry. The total sales were $ 200,000. What
Elanso [62]

Answer: $40000

Step-by-step explanation:

200000(0.2) = $40000

8 0
2 years ago
What's (7 x 100) + (4 x /100) + (8 x 1/1000) in standard form?
IceJOKER [234]

Answer:

(7*100) can be written as 7*10^2

4 * / 100 i don’t know

if it was 4 * 100 then it’s 4*10^2

if it was divided then it’s 4*10^-2

8* 1/1000 = 8/1000 = 8*10^-3

add together to get 1.100008 * 10^3 (if it was 4*100)

or 7.00048 * 10^2 ( if it was 4/100)

7 0
2 years ago
Find the smallest number to be added to 11650 so that the sum will be a perfect square ​
sergejj [24]

Answer:

14

Step-by-step explanation:

Take the square root of 11650+14:

%:11650+14

108

So it’s a perfect square (108^2=11664).

3 0
3 years ago
A washer and a dryer cost $917 combined. The washer costs $67 more than the dryer. What is the cost of the dryer?
mart [117]
917 - 67 = 850 (subtract the difference)
850 / 2 = 425 (divide the cost of the washer/dryer)
425 + 67 = 492 (add the difference)
The dryer costs $492.
4 0
3 years ago
find the slope of the lines that pass through each pair of points. (-1,4) and (5,1); (-3,4) and (0, 10), m1= and m2=
Amiraneli [1.4K]

For these equations, we are going to use the slope formula, as defined below (m is slope and (x_1, y_1) and (x_2, y_2) are coordinate points):

m = \dfrac{y_2 - y_1}{x_2 - x_1}


We can simply "plug in" the coordinates we are given:

m_1 = \dfrac{1 - 4}{5 - (-1)} = \dfrac{1-4}{5+1} = - \dfrac{3}{6} = - \dfrac{1}{2}

m_2 = \dfrac{10 - 4}{0 - (-3)} = \dfrac{10-4}{3} = \dfrac{6}{3} = 2


Our answers are:

\boxed{m_1 = - \dfrac{1}{2}}

\boxed{m_2 = 2}

7 0
2 years ago
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