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guajiro [1.7K]
3 years ago
10

X-y=6, if x=2, then y= -4

Mathematics
1 answer:
Tomtit [17]3 years ago
5 0

Answer:

That is correct.

Step-by-step explanation:

x - y = 6

2 - (- 4) = 6

2 + 4 = 6

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Need help....... thx
Blababa [14]

I got 75582.

Explanation:

First, group the 40 identical candies into 20 pairs. It doesn't matter how since the candies are identical. This grouping will ensure that any assigment will contain at least two candies.

Then think of the 20 groups a 20 beads on a string. We are looking to place 11 separators between them to obtain 12 segments, each with a varying number of beads between them. How many ways are there to place 11 separators to 19 potential spaces between beads? The asnwer is n = {19\choose{11}}=75582


5 0
3 years ago
Simplify the expression. Rewrite using only positive exponents.
ivanzaharov [21]

The simplification form of the provided expression is x¹⁸a³b³ option

(d) x¹⁸a³b³ is correct.

<h3>What is an integer exponent?</h3>

In mathematics, integer exponents are exponents that should be integers. It may be a positive or negative number. In this situation, the positive integer exponents determine the number of times the base number should be multiplied by itself.

It is given that:

The expression:

= \rm (\dfrac{x^4a^2b^3}{x^{-2}ab^2})^3

After using the integer exponent property:

\rm =\dfrac{x^{12}a^6b^9x^6}{a^3b^6}

= a³b³x¹⁸ Or

=x¹⁸a³b³

Thus, the simplification form of the provided expression is x¹⁸a³b³ option

(d) x¹⁸a³b³ is correct.

Learn more about the integer exponent here:

brainly.com/question/4533599

#SPJ1

4 0
2 years ago
Please help me with this question step by step on how to solve it. It takes the earth 24 h to complete a full rotation. If it wo
pav-90 [236]

In order to find the number of hours it takes to do the full rotation we separate into pieces the days, hours, and minutes and convert each of them separately.

using the conversion factor from days to hours we get that

1\text{day}=24\text{hours}

then we get that

38\text{days}\cdot\frac{24\text{hours}}{1day}=912hours

hours does not need a conversion factor, meaning that

10\text{hours}=10\text{hours}

continue by converting the minutes using the following conversion factor

1\text{hour}=60\min

then,

30\min \cdot\frac{1\text{hour}}{60\min }=0.5\text{hours}

To complete add all the results together

\begin{gathered} 912+10+0.5 \\ 922.5\text{hours} \end{gathered}

It takes mercury 922.5 hours to complete a full rotation.

3 0
1 year ago
a chinchilla weighs 2 pounds its weight is 1/8 the weight of a koala write an expression and solve it to show how much the koala
Wittaler [7]
So you can say that the weight of a koala here can be x.

So x * 1/8 = 2

2 being the chinchilla's weight and the 1/8 coming from the fact that the chinchilla weighs 1/8 of the weight of the koala.

So you can just divide both sides by 1/8 first.

x * 1/8 = 2

/ 1/8       / 1/8

Or,

x *1/8 * 8/1 = 2 * 8/1

x = 16

So the koala weighs 16 pounds.
6 0
3 years ago
Jeremy opened two savings accounts at the beginning of 2010, each with an initial deposit of
deff fn [24]

account b has 2.6% more interest than account a

7 0
3 years ago
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