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Oksana_A [137]
3 years ago
14

Helppppppppppppppppppppp

Mathematics
1 answer:
liubo4ka [24]3 years ago
8 0
The domain of a(x) is all of R. The domain of b is the range where x-4 \geq 0, hence \ x \geq 4. We can calculate the composition boa by changing in the expression for b, every x with a(x). Hence, boa(x)=\sqrt{(3x+1)-4}=\sqrt{3x-3}. Again for a function with a root to be defined, we need that the expression under the square root has to be positive. Hence, 3x-3\geq 0.Thus, the set where this holds is 3x \geq 3, x \geq 1. This is also the domain of the function boa(x).
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PLSS HELP WILL MARK BRAINLIEST IF YOU DUNNO DONT PUT ANYTHING AT ALL :)
kondor19780726 [428]

Answer:

Step-by-step explanation:

350 degree hope dis help

5 0
3 years ago
Read 2 more answers
He roots of x2 − (<br> ) + 34 are 5 ± 3i.
GrogVix [38]
Use the quadratic formula, x=\frac{-b+ \sqrt{ b^{2}-4ac} }{2a}
(don't know how to type the "-"sign in the formula, so there is only the "+" in the formula)
in this case, a=1, c=34, b is unknown
from the roots, we can tell that -b+\sqrt{b^{2}-4ac } =2(5+3i)=10+6i

Note: the original equation already give b as -b, so -(-b)=10, b=10
using b^2-4ac=(6I)^2,
b^2-4*34=-36
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you will also get b=10
5 0
3 years ago
Mrs. Duggin walked every day for seven days. If she walked 9/10 of a mile each day for seven days, how many total miles did she
Molodets [167]

Answer:

Mrs. Duggin walked a total of \frac{63}{10} \ miles..

Step-by-step explanation:

Given:

Number of miles walked on each day = \frac{9}{10} \ mile

Number of days she walked = 7

We need to find the Total miles she walked using repeated addition method.

Solution:

Now we know that Repeated Addition means adding each group together and it is also known as Multiplication.

So we can Find Total miles she walked by adding Number of miles walked on each day with number of day times.

OR

we can Find Total miles she walked by Multiplying Number of miles walked on each day with number of days.

framing in equation form we get;

Total miles she walked = \frac{9}{10}+\frac{9}{10}+\frac{9}{10}+\frac{9}{10}+\frac{9}{10}+\frac{9}{10}+\frac{9}{10}= \frac{9+9+9+9+9+9+9}{10} = \frac{63}{10}\ miles

OR

Total miles she walked = \frac{9}{10}\times7= \frac{63}{10} \ miles.

Hence Mrs. Duggin walked a total of \frac{63}{10} \ miles..

4 0
4 years ago
Can someone help me .
insens350 [35]
Y-y1=m(x-x1)
m= slope =-3
y-y1=-3(x-x1),
y1=-7, x1=5
y--7=-3(x-5)
y+7=-3(x-5) this is C
7 0
4 years ago
Maurice has three 20 bills two 10 bills 10 quarters 12 nickels and 2 pennies. If he donates an equal amount of hop is money to 4
saveliy_v [14]
Aloha!
 First, add $20 and $20 and $20 and $20 because of the one $20 bill and the two ten dollar bills. 

Add the 10 quarters which is 2.50 and add 12 nickles 60 cents or .60 then add 2 pennies.
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I hope this helps!:)
7 0
3 years ago
Read 2 more answers
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