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Vladimir [108]
3 years ago
6

2. A number a is fewer than -6 or no less than - 3 .

Mathematics
1 answer:
damaskus [11]3 years ago
5 0

Answer:

a<-6 or a≤-3

Step-by-step explanation:

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15x^2 + 41x + 28 <br><br>STEP BY STEP ANSWER PLSSS​
maria [59]

Answer:

(3x+4)(5x+7)

Step-by-step explanation:

15x^2 +41x+28

Factor the expression by grouping. First, the expression needs to be rewritten as 15x^2 +ax+bx+28. To find a and b, set up a system to be solved.

a+b=41

ab=15×28=420

Since ab is positive, a and b have the same sign. Since a+b is positive, a and b are both positive. List all such integer pairs that give product 420.

1,420

2,210

3,140

4,105

5,84

6,70

7,60

10,42

12,35

14,30

15,28

20,21

Calculate the sum for each pair.

1+420=421

2+210=212

3+140=143

4+105=109

5+84=89

6+70=76

7+60=67

10+42=52

12+35=47

14+30=44

15+28=43

20+21=41

The solution is the pair that gives sum 41.

a=20

b=21

Rewrite 15x^2 +41x+28 as (15x^2 +20x)+(21x+28).

(15x^2 +20x)+(21x+28)

Factor out 5x in the first and 7 in the second group.

5x(3x+4)+7(3x+4)

Factor out common term 3x+4 by using distributive property.

(3x+4)(5x+7)

7 0
3 years ago
Read 2 more answers
Solve the equation and show all work please show steps!!<br> m/9 - 17=21
masya89 [10]
Okay. The question is m/9 - 17 = 21. First off, we will add 17 to both sides. -17 + 17 cancels out. 21 + 17 is 38. That leaves m/9 = 38. Multiply each side by 9 to isolate the m, because m is the numerator and 9 is the denominator. m/9 * 9/1 cancels out. 38 * 9 is 342. Let's check this. 342/9 is 38. 38 - 17 is 21. 21 = 21. There. x = 342.
3 0
3 years ago
Read 2 more answers
Evaluate 25% of 200 mentally
vovikov84 [41]

Answer:

50

Step-by-step explanation:

25% = 0.25

200 * 0.25 = 50

Best of Luck!

8 0
3 years ago
A 3.0 kg book sits on a very high shelf 4.5 meters above the ground. Calculate the potential energy of the book.
poizon [28]
MASS*GRAV*HEIGHT=PE
MASS=3
GRAV=9.8
HEIGHT=4.5
3*9.8*4.5=132.3
POTENTIAL ENERGY= 132.3
7 0
3 years ago
20p and brainliest for helping me, please!!!!!!!!!!!
BaLLatris [955]
I would say between 2 and 4 because you are using ration  recipe 4:  8 :4 10:5 
12:6
 recipe 2: 6:3 10:5 14:7 all you doing is trying to find whats  ratio is greater.. hope it helps

4 0
3 years ago
Read 2 more answers
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