3 years ago

Show that f(x)=(x-2)^3+8 is one to one algebraically

1 answer:

3 0

What im thinking is this: F(a) = f(b) so have 2 equations written and plug a into one and b in the other

(a-2)^3+8 = a^3-8+8 = a^3

= a^3 = b^3 square root both side = a=b
<span>(b-2)^3+8 = b^3-8+8 = b^3

Thus it is 1:1.</span>

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Find the values of a and b so that the solution of the linear system is (-9,1).

Diano4ka-milaya [45]

Answer:

Step-by-step explanation:

we can write -9 instead of x and y=1 instead of 1

so we write solution again

-9a+1b=-31

-9a-1b=-41

-18a=-72

a=4

we should write 4 instead of a

-9(4)+1b=-31

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a=4

6 0

2 years ago

Simplify square root of 1008 ( V` Represents the square root sign.)

Alexus [3.1K]

So first factor it
1008=2*2*2*2*3*3*7
group them in similar pairs
1008=(2*2)(2*2)(3*3)*7
now remember we can do
$\sqrt{xy}= \sqrt{x} \sqrt{y}$ so
$\sqrt{1008}= (\sqrt{2*2}) (\sqrt{2*2}) (\sqrt{3*3}) (\sqrt{7})$ =
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the answer is B

5 0

2 years ago

Solve the inequality<br> 4b−4≤−20

devlian [24]

Answer:

b ≤ -4

Step-by-step explanation:

4b−4≤−20

4b - 4 + 4 ≤ - 20 + 4

4b ≤ -16

Divide both sides by 4

b ≤ -4

8 0

2 years ago

Derrick earned $1472during the 4 weeks he had his summer job.if he earned the same amount each week,how much did he earn each we

valkas [14]

You take $1472 and divide it by 4

$1472 divided by 4 = $368 per week or $52.57 a day
hope this helps!!

8 0

3 years ago

What is the y-intercept of the graph of the function f(x) = x2 + 3x + 5?

agasfer [191]

Answer:

(0,5)

Step-by-step explanation:

If you plug in 0 in all the variables of x, f(x)=0+0+5

We know that f(x) is y...so y=5, while x=0

7 0

3 years ago