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3 years ago

How to Simplify x+4x+6x

Mathematics

1 answer:

Andrei [34K]3 years ago

4 0

Answer:

11x

Step-by-step explanation:

x+4x+6x

We need to combine like terms

1x+4x+6x

x( 1+4+6)

x(11)

11x

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Which biconditional statement below is true?

Sindrei [870]

Answer: Angles are supplementary if and only if their sum is 180° is true.

Step-by-step explanation:

Test by making both parts negative: Angles are not supplementary if and only if their sum is not 180° This is also true.

8 0

3 years ago

Select all the perfect squares.<br> 9<br> 41<br> 81<br> 144<br> 150

quester [9]

Answer:

9, 81, 144

Step-by-step explanation:

6 0

3 years ago

The label on the car's antifreeze container claims to protect the car between −40°C and 125°C. To covert Celsius temperature to

Solnce55 [7]

Answer:

see below

Step-by-step explanation:

The label on the car's antifreeze container claims to protect the car between -40°C and 125°C.

So inequality which models this situation will be -40°C < T < 125°C

Now we have to show this inequality in Fahrenheit temperature with the help of $C=\frac{5}{9} (F-32)$

So the compound inequality in Fahrenheit temperature will be

$-40 < \frac{5}{9} (F-32) < 125$

7 0

2 years ago

He simultaneous equations<br>5x + y = 21<br>x - 3y = 9 <br><br>With working out

Elza [17]

Answer:

see explanation

Step-by-step explanation:

Given the 2 equations

5x + y = 21 → (1)

x - 3y = 9 → (2)

Multiply (1) by 3 and add the result to (2) to eliminate y term

15x + 3y = 63 → (3)

Add (2) and (3) term by term

(x + 15x) + )- 3y + 3y) = (9 + 63)

16x = 72 ( divide both sides by 16 )

x = 4.5

Substitute x = 4.5 into (1) for corresponding value of y

22.5 + y = 21 ( subtract 22.5 from both sides )

y = - 1.5

Solution is (4.5, - 1.5 )

8 0

3 years ago

The two-way table shows the number of people whose hobbies are reading or solving puzzles and who either ride a motorcycle or do

enot [183]

The number of people whose hobby is reading but not riding a motorcycle is 5.

<h3>What is the relative frequency of not riding a motorcycle?</h3>

We want to calculate the number of people whose hobby is reading but they don't like riding the motorcycle,

therefore, when we look into the table we will find out that block A2 is the block that represents the number of people whose hobby is reading but not riding a motorcycle.

Hence, the number of people whose hobby is reading but not riding a motorcycle is 5.

Learn more about Relative frequency:

brainly.com/question/14610326

7 0

2 years ago