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3 years ago

What does (4x - y) + (-10 + y) equal if x = 3 and y = 4?

Mathematics

2 answers:

Blababa [14]3 years ago

6 0

(4X3-4) + (-10+4)=

12-4=8

-10+4 = -6

8 + -6 = 2

atroni [7]3 years ago

4 0

(4x-y)
4(3)-4 = 8

(-10+y)
-10+4 = -6

8 + -6 = 2

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Is DEF a right triangle? True or false

umka2103 [35]

Short answer = false
Remark
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Equation
a^2 + b^2= c^2
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Givens
a = 24
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Sub and Solve
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4 years ago

Which answer choise discreabe the ratio 6:4 selcet all that apply

stiv31 [10]

Answer:

3x:4x for some real number x

Step-by-step explanation:

Since answer choices weren't provided, I generalized my answer.

First, notice we can simplify 6:4 into 3:2 because we can write the ratio as a fraction and simplify (6 and 4 are both multiples of 2).

Since 3 and 2 are relatively prime and the ratio cannot simplify anymore, we can say that the ratio of 6:4 = 3:2 = 3x:2x for some real number x because we can see that 3x:2x = 3:2 by simplifying (3x and 3 are both multiples of x).

As long as the answer choice you choose matches the format above, you should be correct! I hope this helps! :)

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3 years ago

Given the geometric sequence where a1 = 2 and the common ratio is 4, what is the domain for n?

Karo-lina-s [1.5K]

The general term is $a_n$ (a sub n; n is a subscript)

The first term is a1
The second term is a2
The third term is a3
and so on...

The first term starts at n = 1. We replace the n in $a_n$ with 1 to get $a_1$ . A similar thing happens with n = 2 and onward

The domain is therefore the set {1, 2, 3, 4, 5, ...} which is the set of...
* Counting numbers
* Positive Whole numbers
* Natural numbers
Those are three ways to express the same set

We can also say $n \ge 1$ where n is an integer or whole number
A similar inequality would be $n \ \textgreater \ 0$ which is effectively the same as idea as the last inequality (n is also an integer or whole number).

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4 years ago

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olasank [31]

Answer:

B. 9 : 21

Step-by-step explanation:

Multiply numerator and denominator by 3:

... 3/7 × 3/3 = 9/21 ⇒ 9 : 21

_____

Any denominator that is not a multiple of 7 will not work. 35 is a multiple of 7 (=5×7), but 12 (=4×3) is not the same multiple of 3.

6 0

3 years ago

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grandymaker [24]

Answer:

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Step-by-step explanation:

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3 years ago