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rusak2 [61]
3 years ago
14

How do you factor 7b^2-63b+140?

Mathematics
1 answer:
LuckyWell [14K]3 years ago
8 0
You can simplify the entire equation by dividing it all by 7, resulting in 7(b^2-6b+20). 

Here, you can factor as you normally would. Your X values would have to be found using the quadratic formula.
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he times it took for 35 loggerhead sea turtle eggs to hatch in a simple random sample are normally distributed, with a mean of 5
djverab [1.8K]

awnser: frick, this is hard. 2.98? yes, no?

8 0
4 years ago
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Find bc. Round the answer to the nearest tenth.
Nadusha1986 [10]
Is BC=2.3 one of the options?

For that question, you can use the cosine rule, where;
{a}^{2}  =  {b}^{2}  +  {c}^{2}  - 2(b)(c) \cos( \alpha )
In this case, we have..
{bc}^{2}  =  {1.8}^{2}  + {2.1}^{2}  - 2(1.8)(2.1) \cos(70)
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6 0
4 years ago
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X to the power of 2 add 3x
faust18 [17]

Answer:

Hope this helps

Step-by-step explanation:

a) x^2 + 3x = x(x+3)

b) 2x^2 - 8x = 2x(x - 4)

c) 6x + 9x^3 = 3x(2 + 3x^2)

d) 12x^3 - 4x^2 = 4x^2(3x - 1)

8 0
2 years ago
Find the slope of (0,1) and (2,7)
gavmur [86]
Slope is \frac { y_{2} - y_{1}}{ x_{2} - x_{1}}

if we plug in your coordinates we get:
\frac { y_{2} - y_{1}}{ x_{2} - x_{1}} \\ \frac {7-1}{2-0} \\ \frac {6}{2} \\ 3

Therefore, the slope of (0,1) and (2,7) is 3.
4 0
3 years ago
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Can anyone help please? I just need the Y-intercept is all, Thank you!
NARA [144]

Answer:

4.95

Step-by-step explanation:

8 0
3 years ago
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