All categories

3 years ago

What is -6a + a + 28a

Mathematics

2 answers:

densk [106]3 years ago

7 0

These are all like terms, meaning that they involve the same literal expression (in this case, "a").

So, we can factor a out of all the terms, and we have

$-6a+a+28a=a(-6+1+28) = 23a$

Alisiya [41]3 years ago

4 0

$-6a+a+28a=-6a+29a=23a$

Hope this helps.

You might be interested in

SOMEONE PLEASE HELLP...I’ll return the help!!and help u

Snezhnost [94]

Answer:

D) 6.79 x 10^7

Step-by-step explanation:

Company D has the greatest revenue because it is multiplying by 10 to the power of 7 which is the same as multiplying by 10 seven times. The least revenue is company C because it is only multiplying by 10 to the power of 4 which is the same as multiplying by 10 4 times.

6.8 x 10^7 = 68,000,000

9 x 10^4 = 90,000

68,000,000 - 90,000 = 67,910,000.

Convert this back into standard form to get 6.79 x 10^7

5 0

3 years ago

In Lab#2, suppose you found that the mass of 15 shots to be 21

Softa [21]

15 / 21 = 75 / x.....15 shots to 21 grams = 75 shots to x grams
cross multiply
(15)(x) = (75)(21)
15x = 1575
x = 1575 / 15
x = 105 grams <===

5 0

3 years ago

Read 2 more answers

30 POINTS easy question

jenyasd209 [6]

Answer:

Step-by-step explanation:

The exterior angle is equal to the sum of the 2 opposite interior angles, therefore:

9x + 9 = 45 × 5x

4x = 36

x = 9

3 0

3 years ago

Read 2 more answers

add the term that makes the given expression into a perfect square. write the result as the square of a bracketed expression c s

Molodets [167]

<h2>Perfect Squares</h2>

Perfect square formula/rules:

$a^2+2ab+b^2=(a+b)^2$
$a^2-2ab+b^2=(a-b)^2$

Trinomials are often organized like $ax^2+bx+c$ .

The <em>b</em> value in this case is <em>c</em>, and it will always equal the square of half of the <em>b</em> value.

Perfect square trinomial: $ax^2+bx+(\dfrac{b}{2})^2$
or $ax^2-bx+(\dfrac{b}{2})^2$

<h2>Solving the Question</h2>

We're given:

$c^2-4c$

In a trinomial, we're given the $ax^2$ and $bx$ values. <em>a</em> in this case is 1 and <em>b</em> in this case is 4. To find the third value by dividing 4 by 2 and squaring the quotient: