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Aneli [31]
3 years ago
15

If a = 5 and b = 6, what is the value of the following expression?

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
6 0

Answer:

I don't understand what the expression is

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Mark dug a 20 foot hole in 4 hours. Which rational number shows the average depth Mark dug each hour? Check all that apply.
Black_prince [1.1K]

Answer:

A,B,D

Step-by-step explanation:

it just has to equal -5 lol

8 0
3 years ago
The sum of two numbers is 840. one of the numbers is 357. what is the other number?​
nlexa [21]

Answer:

483

Step-by-step explanation:

840 minus 357 is 483

5 0
3 years ago
What is the range of y = sinx in the interval - π ≤ x ≤ 0?
Kaylis [27]

Answer:

-1 \le y \le 1

Step-by-step explanation:

Let be y = \sin x, the range of the function corresponds to the set of values of y. The sine function is a bounded function between -1 and 1. Hence, the range of the function is:

-1 \le y \le 1

6 0
3 years ago
Are these expressions equivalent? (Show work)<br> 14x+10+2x and 5x+3x+10+8x
balu736 [363]

Step-by-step explanation:

14x+10+2x

16x+10. Answer 1

5x+3x+10+8x

16x+10. Answer 2

So, both Answers are same, So the expressions are equivalent...

3 0
3 years ago
Can someone please help me?
Vladimir79 [104]

Answer:

<h3> ( - 1 , - 1 )</h3>

Option D is the correct option.

Step-by-step explanation:

y = - 2x - 3 → Equation ( i )

y = 3x + 2 → Equation ( ii )

Using elimination method

y + 2x = - 3

y - 3x = 2

---------------------

5x = - 5

Divide both sides of the equation by 5

\frac{5x}{5}  =  \frac{ - 5}{5}

Calculate

x =  - 1

Again, Putting the value of x in equation ( ii ) in order t get the value of y

y = 3x + 2

plug the value of x

= 3  \times ( - 1) + 2

Any expression multiplied by ( - 1 ) equals it's opposite

=  - 3 + 2

Calculate

=  - 1

Therefore, The possible solution of the system is the ordered pair ( x , y )

(x \:, y \: ) =  ( - 1 \:, - 1)

-----------------------------------------------------------------------

Check if the given ordered pair is the solution of the system of equation

- 1 =  - 2 \times ( - 1)  - 3

- 1 = 3 \times ( - 1) + 2

Simplify the equation

- 1 =  - 1

- 1 =  - 1

Since all the equalities are true, the ordered pair is the solution of the system.

<h3>( x , y ) = ( - 1 , - 1 )</h3>

Hope this helps..

Best regards!!

7 0
3 years ago
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