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Orlov [11]
3 years ago
5

Ill give brainliest and its 20 points!!!

Mathematics
1 answer:
alexgriva [62]3 years ago
8 0

Answer: I think the answer is B. 3.

Step-by-step explanation:

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What is a simpler form of the following expressions?
nadezda [96]

Answer:

D. 49p² - 64

Step-by-step explanation:

(7p - 8)(7p + 8)

Solving this requires the 'difference of squares' concept which states;

If (a - b)(a + b)

Then the solution must be a² - b²

Considering (7p - 8)(7p + 8) then the answer is;

(7p)² - 8² = 49p² - 64

6 0
3 years ago
A roll of ribbon was 12 meters long. Diego cut 9 pieces of ribbon that were 0.4 meters each to tie some presents. He then used t
Alex777 [14]

Answer:

8.4 meters of ribbon left and 14 wreaths made

Step-by-step explanation:

9 * 0.4 = 3.6 meters used for presents

12 - 3.6 = 8.4 meters left for wreaths

8.4 / 0.6 = 14 wreaths

4 0
3 years ago
Read 2 more answers
the area of a triangle is 384 square feet. If its base is 8 feet longer than its altitude, find the length of the base and the a
REY [17]
A=1/2bh
b=8+h
A=384

384=1/2(bh)
times 2
768=bh
sub
768=b(8+b)
768=8b+b^2
minus 768 both sides
0=b^2+8b-768
factor
0=(b-24)(b+32)
set to zero
b-24=0
b=24

b+32=0
minus 32
b=-32
false, legnths cannot be negative

b=24
24=8+h
minus 8
16=h

base=24ft
altetude=16ft
6 0
3 years ago
What is the distance between the two points? A. 4 units B. 5 units C. 6 units D. 7 units
slavikrds [6]

Answer:

C.?

Step-by-step explanation:

wheres the pic??

7 0
2 years ago
Read 2 more answers
An excavating company charges $300 an hour for the use of a backhoe and $500 an hour for the use of a bulldozer. (part of an hou
Fed [463]

We have that

Cost use of a backhoe----------------------$300 an hour

<span> Estimate for equipment rental each week---------------------$18,400</span>

Total hours operator per week--------------------------------------40

<span> 40*300</span>=$12000---------------------it is the cost per week to use a backhoe

 $12000<$18400  is ok 

<span> The maximum of hours that I can rent </span>a backhoe <span> are 40 hours, since it is the limit of the operator and it do not overcome the total budget </span>

4 0
3 years ago
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