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3 years ago

What is the inverse of f(x)= cube root of x +2.

Mathematics

1 answer:

Sergeu [11.5K]3 years ago

3 0

$f(x) = \sqrt[3]{x + 2} \\y = \sqrt[3]{x + 2} \\y^{3} = x + 2 \\x^{3} = y + 2 \\x^{3} - 2 = y \\x^{3} - 2 = f^{-1}(x)$

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Sherrod and Kamar are planning to drive at most 900 miles road trip. Sherrod drives at 60 miles per hour, and Kamar at 50 miles

Allushta [10]

The inequality gives the total expected journey from the road trip, such that the time during which Sherrod and Kamar drives is known.

a. The inequality that represents the miles that Sherrod and Kamar drives is; x + y ≤ 900

b. Two possible combination of x and y are; (600, 300) and (300, 600)

Reasons:

a. The distance distance Sherrod and Kamar plan to drive ≤ 900 miles

Sherrod's speed = 60 mph

Kamar's speed = 50 mph

The distance Sherrod drives = x

The distance Kamar drives = y

a. The miles driven by Sherrod and Kamar is given by the inequality;

x + y ≤ 900

b. Two possible combinations are;

First possible combination;

Sherrod drives for 10 hours, which gives;

Distance Sherrod drives = 60 mph × 10 hour = 600 miles

Kamar drives for 900 miles - 600 miles = 300 miles

Which gives;

Sherrod drives for 600 miles and Kamar drives for 300 miles

First combination; (600, 300)

Second possible combination;

The second possible combination is Sherrod drives for 300 miles and Kamar drives for 600 miles

Second combination; (300, 600)

Learn more about inequalities here:

brainly.com/question/22976364

6 0

2 years ago

Simplify (-5) + (-4) + (7). 0-2 06 O 8 16

stich3 [128]

Answer:

- 2

Step-by-step explanation:

The question is - 5 + - 4 + 7

You do addition first.

-4 + 7 = 3

So now we have - 5 + 3

-5 + 3 = - 2

5 0

2 years ago

(2y^3+5y^2-y+15) ÷ (y-4)

Sveta_85 [38]

ANSWER: 2y^2 + 13y +51 r(219/y-4)

picture explanation too:

8 0

3 years ago

What's the value of x? 40000mg =10x g

dybincka [34]

The value of x is 4. So 40000 mg= 40 g.

Step-by-step explanation:

The given is 40000mg = 10x g

Step:1

Take given equation as equation (1)

40000 mg= 10x g.................(1)

where, X is known value.

Step:2

Standard value for mg to g for the purpose of conversion of units,

1 milligram = 0.001 gram (or)

1 gram = 1000 milligram

Step:3

From the standard data values,

= 40000 mg

it converted mg to g by dividing 1000

= $\frac{40000}{1000}$ g

= 40 g.......................(2)

Step:4

From the Equations (1) and (2),

40=10x

x=4

Result:

The value of x is 4. So, 40000mg = 40 g.

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2 years ago

Which is the wrong one? BIGGER OR SMALLER help

harina [27]

Answer:

It's D. 1.2(line) < 3.1(pi) < 4.6(square root 22)

Step-by-step explanation:

Look in the comments to figure out why D is correct. You're welcome! :)

7 0

2 years ago