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Dahasolnce [82]
3 years ago
15

True or false "the product of -6 and -7 is less than the quotient of -100 and 2." ​

Mathematics
2 answers:
Wittaler [7]3 years ago
8 0

Answer:

False. -50 is less than 42 because it’s a negative and 42 is a positive.

Step-by-step explanation:

-6 x -7 = 42

-100 ÷ 2 = -50

Vera_Pavlovna [14]3 years ago
8 0

Answer:

false

Step-by-step explanation:

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How do I show my work for solving the radius of a circle if the area is 78.5 cm^2
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Answer:

  radius = 5 cm

Step-by-step explanation:

The point of "show your work" is to have to do exactly that. If you know the answer to the problem, you are being requested to show how you got it. If you got it by using a web calculator, then show your input and its result.

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If you worked the problem yourself, you probably did it by filling in numbers in the equation for the area of a circle:

  A = πr²

  78.5 = 3.14×r²

Dividing both sides by 3.14 gives the square of the radius:

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The area is in square centimeters, so the radius is in centimeters:

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7 0
2 years ago
Indeed help with this plz
gizmo_the_mogwai [7]

Answer:

x=\frac{6-y-z}{3}

Step-by-step explanation:

5 0
3 years ago
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The half-life of a radioactive substance is the time required for half of a sample to undergo radioactive decay,or for the quant
NikAS [45]

Answer:

That's two half lives. 5/8 * 2 * 2 = 20/8 = 5/2 pounds7/8 * 2 * 2 = 28/8 = 7/2 pounds

Step-by-step explanation:

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2 years ago
URGENT will give brilliant mark For the reaction 2Na + Cl2 ------ 2NaCl, how many grams of sodium chloride can be produced from
SVETLANKA909090 [29]

Answer:

825 g

Step-by-step explanation:

Here's my work:

500g Cl2 l   1mol Cl2  l  2 mol NaCl   l  58.5 g NaCl

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= 823.94  - the rounding can be a little off

The first thing you have to do is convert the 500 g of Cl2 into moles.  So you get the mass of Cl which is 35.5, but Cl is diatomic by itself so you multiply 35.5 x 2 and get 71.   now on the third column you are comparing the mol ratios of the equation.  The equation is 2Na + Cl2 ---> 2NaCl, so you see that there is no coefficient in front of Cl2 so that means there is 1 mol, and then you see that in the product there is a  coefficient of 2 in front of NaCl so that means there is 2 moles.  Then finally you have to convert the moles backs into grams where you just add the masses of Na and Cl .  You multiply across the top  and then divide that number by the bottom row.

6 0
2 years ago
] Complete the explanation of how you know whether the triangles are similar. If possible, find the Indicated length. A P 2.0 1.
disa [49]

1. The two triangles are similar because the two pairs of angles are equal, therefore the third angles of both triangles must also be equal.

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So, QR =1.02

5 0
1 year ago
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