A. -9v – 9 = -27 thats question 1

hoa [83]

Convert the fraction 3/4 to decimal form to get 3/4 = 0.75

To factor out 3/4, we divide each term by 3/4 or 0.75
It might be easier to divide by 0.75 to avoid two division symbols

So (3/4)z+6 = 0.75z+6
Divide each term (0.75z and 6) by 0.75 which is what we want to factor out

0.75z/0.75 = z
6/0.75 = 8

Therefore,
0.75z+6 = 0.75*(z+8)

Note how we can distribute the 0.75 back through to each term inside (z and 8) and we'll end up with 0.75z+6 again.

The answer in fraction form is $\frac{3}{4}(z+8)$ which is 3/4 outside the parenthesis multiplied by the group (z+8)

6 0

3 years ago

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre

lilavasa [31]

Answer:

(5a−3)^2

Step-by-step explanation:

25a^2 - 30a + 9

Factor the expression by grouping. First, the expression needs to be rewritten as 25a^2+pa+qa+9. To find p and q, set up a system to be solved.

p+q=−30

pq=25×9=225

Since pq is positive, p and q have the same sign. Since p+q is negative, p and q are both negative. List all such integer pairs that give product 225.

−1,−225

−3,−75

−5,−45

−9,−25

−15,−15

Calculate the sum for each pair.

−1−225=−226

−3−75=−78

−5−45=−50

−9−25=−34

−15−15=−30

The solution is the pair that gives sum −30.

p=−15

q=−15

Rewrite 25a^2 - 30a + 9 as (25a^2−15a)+(−15a+9).

(25a^2−15a)+(−15a+9)

Factor out 5a in the first and −3 in the second group.

5a(5a−3)−3(5a−3)

Factor out common term 5a−3 by using distributive property.

(5a−3)(5a−3)

Rewrite as a binomial square.

(5a−3)^2

3 0

3 years ago

-5x=5 solve for x plssss help

KengaRu [80]

Answer:

x=-1

Step-by-step explanation:

-5x=5

-x=1

x=-1

or solve this way

-5x=5

5x=-5

x=-1

4 0

2 years ago

Read 2 more answers

A company purchased a new delivery van at a cost of $55,000 on july 1. the delivery van is estimated to have a useful life of 5

mash [69]

The change in value over 5 years is expected to be
$55,000 - 4,300 = 50,700
Since this change in value is spread over 5 years, the amount of depreciation recorded for each full year will be
$50,700/5 = $10,140

The period from July 1 to December 31 is 6 months or 1/2 year, so the depreciation recorded the first year will be 1/2 the above amount:
(1/2)*$10,140 = $5,070

4 0

3 years ago

Three subtracted from the product of

ololo11 [35]

5w-3 > -29
Add 3 at both sides

5w > -26
Divide 5 at both sides

w > -26/5

6 0

3 years ago