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3 years ago

Simplify the following expressions by collecting like terms a) 3e + 4 + 6e

Mathematics

1 answer:

Readme [11.4K]3 years ago

3 0

Answer:

Firstly, you collect like terms, so 3e and 6e added together would be 9e.

So the simplified version of this expression would be 9e + 4.

Step-by-step explanation:

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If the side length is increased by a factor of 3, how much larger is the perimeter of a face of the new cube?

Luden [163]

The perimeter of a face of the new cube is 8 times larger than the previous cube.
Let us say, the side of cube before increase is "a"
Then perimeter of the cube = 12a ,

because the cube has 12 sides.
And perimeter of a face of cube = 4a
Now, the side length is increased by factor of 3 i.e. new side is 3a
Thus, perimeter of new face of the cube = 4*3a = 12a

Therefore, the new perimeter is larger by = 12a - 4a = 8a

6 0

4 years ago

Which shows two products that result in negative values

Zanzabum

Answer:

(2.4)(-1.8) and (0.6)(-0.4)

Step-by-step explanation:

The product of two negative numbers = a positive number. (negative × negative = positive).

Product of two positive numbers = a positive number. (Positive × positive = positive)

Product of a negative number and a positive number = a negative number. (Negative × positive = negative).

Therefore, the answer choice that shows two products that both will result in negative values would be the answer choice that has a negative number multiplying a positive number.

Option 3 has two products in which each has a negative and positive number. That is (2.4)(-1.8) = a negative value, and

(0.6)(-0.4) = a negative value.

Therefore, the answer is Option 3: (2.4)(-1.8) and (0.6)(-0.4)

5 0

4 years ago

[30 POINTS+BRAINLIEST]

Fiesta28 [93]

Answer:

your ansewer would be C

Step-by-step explanation:

i hope this helped you

6 0

3 years ago

Find the angle marked with the ? mark

Yuri [45]

Answer:

53 degrees

Step-by-step explanation:

Angle N = angle E

because angle made by joining end points of same chord on circumference are always equal.

so angle E = 37

Angle D = 90 ( because angle made by diameter on circumference is 90 degrees)

Now in Triangle DEC. Sum if all the angles of triangle us 180

Angle D + angle E + ? = 180

37 + 90 + ? = 180

127 + ? = 180

? = 180 - 127

? = 53 degrees

4 0

3 years ago

Which inequality is true if p=3.4

Serga [27]

Answer:

None of the inequalities are correct if p = 3.4

Step-by-step explanation:

Mathematical inequality is an order relation proposition existing between two algebraic expressions connected through the signs: unequal than ≠, greater than>, less than <, less than or equal to ≤, as well as greater than or equal to ≥, resulting in both expressions of different values. That is, an inequality is a relationship that exists between two quantities or expressions and, which indicates that they have different values.

To check an inequality, you must replace the inequality variable with the value of the solution. In this case, being p=3.4, you must do it with each of the inequalities, as shown below:

A. 3p<10.2 ⇒ 3*3.4<10.2 ⇒ 10.2 <10.2

This inequality is not true, because 10.2 is not less than 10.2, but they are equal.

B. 13.6<3.9p ⇒ 13.6<3.9*3.4 ⇒ 13.6<13.26

This inequality is not true, because 13.6 is greater than 13.26 and not less as the inequality shows.

C. 5p>17.1 ⇒ 5*3.4 >17.1 ⇒ 17 > 17.1

This inequality is not true, because 17 is less than 17.1 and not greater as the inequality shows.

D. 8.5> 2.5p ⇒ 8.5 >2.5*3.4 ⇒ 8.5 > 8.5

This inequality is not true, because 8.5 is not less than 8.5. These values are the same.

None of the inequalities are correct if p = 3.4

7 0

3 years ago