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Bas_tet [7]
3 years ago
11

Which of the following best represent the average speed of a fast runner

Mathematics
1 answer:
Setler79 [48]3 years ago
6 0
Uhh the first one? I can't see a picture or anything....
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Which value of b would make x²+bx-30 factorable?<br> A. -31<br> B. -17<br> C. 11<br> D. 13
dimulka [17.4K]

Answer:

D. 13

Step-by-step explanation:

well since it's a quadratic equation, it can be written in the form of ax²+bx+c=0. So we have a=1, b=b and c= -30. Also the roots are given by the equation-

x= -b±\sqrt{b^{2}-4ac} /2a. So all I did was put the number from the choices which would satisfy the sqrt part and that turned out to be 13 since \sqrt{13^{2}-4*1*(-30) = \sqrt{289} = 17. So b=13.

5 0
3 years ago
Read 2 more answers
The sum of two number is 14 and their difference is 10 then what will be their multiplication
Tomtit [17]

12+2=14

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12 x 2= 24

3 0
3 years ago
Which is the following quotient 1/1+3 squared
likoan [24]

Answer:

10

Step-by-step explanation:

5 0
3 years ago
Hep hep math math math asap
Hoochie [10]

Answer:

V ≈ 5575.28  

Step-by-step explanation:

First, you will get the radius and in order to get the radius you have to divide 22/2 which will give you 11 then you will plug 11 into the formula which is V= 4/3 pi r^3 then it will come out as this V=4/3 pi 11^3 and if you plug that into the calculator it will give you an answer of 5575.28.

6 0
2 years ago
Need help with this dont understand it at all
vfiekz [6]
To raise a function up by k units, add k to the whole function
f(x) is 2 units lower than g(x)
so -2 was added

k=-2
6 0
3 years ago
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