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Anastaziya [24]
2 years ago
6

A solution contain 60 g of NaCl in 320 g of water. Mass by mass percentage of solution will be

Mathematics
1 answer:
puteri [66]2 years ago
7 0

Answer:

Answer is 15.78% , hence option B is correct

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1206.37 ROUNDED TO NEARST HUNDRETH
Andreyy89

Answer:

It is already rounded

Step-by-step explanation:

4 0
2 years ago
Can anyone help me with this question please ??
Anna007 [38]

Answer:

Try 7986

Step-by-step explanation:

(a+b) × height ÷ 2

(a+b are the parallel sides)

102+140=242 ×66= 15972 ÷2= 7986

7 0
3 years ago
Which expression is equivalent to -3x + 9?
Olenka [21]

Answer:

B

Step-by-step explanation:

You use the distributive Property

-3(x-3)

-3x+9

4 0
3 years ago
Read 2 more answers
Given the following functions f(x) and g(x), solve (f + g)(5) and select the correct answer below: f(x)=2x^2-10 g(x)=x+9
steposvetlana [31]

Answer:

\large\boxed{(f+g)(5)=54}

Step-by-step explanation:

f(x)=2x^2-10,\ g(x)=x+9\\\\(f+g)(x)=f(x)+g(x)\\\\\text{Substitute:}\\\\(f+g)(x)=(2x^2-10)+(x+9)=2x^2-10+x+9=2x^2+x+(-10+9)\\\\(f+g)(x)=2x^2+x-1\\\\(f+g)(x)(5)\to\text{put x = 5 to the equation of the function:}\\\\(f+g)(5)=2(5^2)+5-1=2(25)+5-1=50+5-1=54

8 0
2 years ago
Which statement describes whether a right triangle can be formed using one side length from each of these squares?
balu736 [363]

Answer:

Step-by-step explanation:

The area of the given squares are

Area = 64 in

Area = 225 in

Area = 289 in

The length of each side of a square is determined by finding the square root of its area. For the first square, the length of its side is √64 = 8inches. For the second square, the length of its side is √225 = 15inches. For the third square, the length of its side is √289 = 17inches.

For a right angle triangle to be formed, Pythagorean theorem must be obeyed. Sum of the square of the smaller sides must equal the square of the longer side. Therefore,

8² + 15² = 17²

289 = 289

Therefore, the correct statement is

Yes, a right triangle can be formed because the sum of the areas of the two smaller squares equals the area of the largest square

4 0
3 years ago
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