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Margarita [4]
2 years ago
7

If a(x) = 3x + 1 and (x)= x-4, what is the domain of (boa)(x)?

Mathematics
1 answer:
Ipatiy [6.2K]2 years ago
4 0

I am assuming you meant to write b(x) = x-4.

(b \circ a)(x)=b(a(x))=b(3x+1)=(3x+1)-4=\boxed{3x-3}

Since this is a linear function, the domain is all real numbers.

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Solve using substitution. x − 6y = –8 x + 6y = 16 please help imma fail
Romashka [77]

Answer:

x=−16/7

Step-by-step explanation:

happy to help ya :)

3 0
3 years ago
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Mr. Anderson drove 168 miles in 3 hours. He then drove the next 2 hours at a rate
Luda [366]

Answer:

If you were asking how many miles <u>in total</u>: 290 miles.

If you were asking how many miles in the <u>2 hours</u>: 122 miles

Step-by-step explanation:

In the first 168 miles,

<u>Since \\v_1=168miles/3h=56 miles/h\\\\Thus  \\v_2=v_1+5=56+5=61miles/h\\\\X_1=168miles\\X_2=v_2*2h=61*2=122miles\\X_1+X_2=168+122=290miles\\\\</u>

8 0
3 years ago
Solve for x. 9x=5x 20 enter your answer in the box. x =
const2013 [10]
Collect the like terms
9x-5x=20
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7 0
3 years ago
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Can someone help me ?? :)
LekaFEV [45]
C is the answer you are looking for.
7 0
3 years ago
A farmer can buy two types of plant​ food, mix A and mix B. Each cubic yard of mix A contains 35 pounds of phosphoric​ acid, 15
Nadusha1986 [10]

Answer:

The answer is below

Step-by-step explanation:

Given that the minimum monthly requirements are 840 pounds of phosphoric​ acid, hence:

35 pounds of phosphoric acid mix A + 14 pounds of phosphoric acid mix B ≥ 840 pounds of phosphoric​ acid

35x + 14y ≥ 840

The minimum monthly requirements are 540 pounds of nitrogen, hence:

15 pounds of nitrogen mix A + 18 pounds of nitrogen mix B ≥ 540 pounds of nitrogen

15x + 18y ≥ 540

The minimum monthly requirements are 768 pounds of potash, hence:

16 pounds of potash mix A + 64 pounds of potash mix B ≥ 768 pounds of potash

16x + 64y ≥ 768

Also, x ≥ 0 and y ≥0.

Therefore the equations are:

35x + 14y ≥ 840

15x + 18y ≥ 540

16x + 64y ≥ 768

x ≥ 0 and y ≥ 0

Plotting with geogebra gives the graph below.

The point are (0,60), (48,0), (18,15), (32,4)

7 0
3 years ago
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