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lakkis [162]
3 years ago
6

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

If it is a right triangle, it will obey the Pythagorean Equation. a^2 + b^2 = c^2. Let's see if it does.

Equation
a^2 + b^2= c^2
c must be the longest line. (Hypotenuse)

Givens
a = 24
b = 17
c = 40

Sub and Solve
a^2 + b^2 = c^2
17^2 + 24^2 = c^2 [We'll see if this comes out to 40]

289 + 576 = c^2
865 = c^2 which is no where near what 40^2 equals. 40^2 = 1600

Short answer False

Square root of 865 = (865)^1/2 = 29.4
5 0
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! :)

8 0
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).
4 0
4 years ago
Which ratio is equivalent to start fraction 3 over 7 end fraction? A. 6 to 10 B. 9:21 C. start fraction 12 over 35 end fraction
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
A cyclist rides his bike at 12 miles per hour. What is this speed per minute? How many miles will the cyclist travel in 20 minut
grandymaker [24]

Answer:

In order to find the distance traveled in one minute, you have to divide the distance he can ride his bike in an hour by the number of minutes in a hour. 6/60= .1 mile per minute. If he rides his bike for five minutes, then you would multiply the number of minutes biked by the distance traveled in a minute. .1*5=.5 mile, or \frac{1}{2} mile.

Step-by-step explanation:

4 0
3 years ago
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