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3 years ago

F(x) = –? + x Find f(-1)

Mathematics

1 answer:

RoseWind [281]3 years ago

3 0

Answer:

Replace the variable x with −1

in the expression.

f(−1)=−(−1)²−1

Simplify −(−1)²−1.

Remove parentheses.

−(−1)²−1

Multiply −1 by (−1)²

by adding the exponents.

(−1)³−1

Raise −1 to the power of 3.

−1−1

Subtract 1 from −1.

−2

Step-by-step explanation:

Hope it's right

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Kelby has several she has B birds C cat and F frogs the expression B+(C+F) represents the total number of pets Kelley has what C

zaharov [31]

Answer:

The total number of Cats and Frogs

Step-by-step explanation:

Number of Birds Owned = B

Number of Cats = C

Number of Frogs =F

The expression that represents the total number of pets owned by Kelby

=B+(C+F)

NOTE: SUM/ADDITION = +

Therefore:

The expression C+F represents the total number of Cats and Frogs owned by Kelby.

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4 years ago

Jasmine used the number line to find the distance between 0 and 5. What was Jasmine’s error? Jasmine should have counted from 5

Jobisdone [24]

Answer:

The answer is "Option C".

Step-by-step explanation:

In this question, the distance value is -5 that's why option c is correct.

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3 years ago

The scale of a boat model is

Readme [11.4K]

Answer: well 2 times 15 = 30

30 times 6 = 180. So the boat is 180 feet long

Step-by-step explanation:

3 0

3 years ago

8 t-shirts and a hat costs £42.00

AleksandrR [38]

Answer:

<h2>1 t-shirt cost $5</h2><h2>hat costs $2</h2>

Step-by-step explanation:

8 t-shirts and a hat cost £42.00

3 t-shirts and a hat cost £17.00.

<u>difference</u>

5 t-shirts cost $25

1 t-shirt cost $5

3 t-shirts cost $15

3 t-shirts and a hat cost £17.00.

<u>difference</u>

hat costs $2

3 0

3 years ago

Jimmy decides to mow lawns to earn money. The initial cost of his electric lawnmower is $350. Electricity and maintenance costs

hodyreva [135]

Answer:

a) C(x) = 4x + 350

b) 13x; $13

c) 39

Step-by-step explanation:

a) Initial cost of lawnmower = $350

Maintenance cost for 1 lawn = $4

Maintenance cost for x lawns = 4x

Total cost function, C(x) = 4x + 350

b) Revenue = Cost + Profit

= C(x) + P(x)

= 4x + 350 + 9x - 350

= 13x

Charge per lawn = $\frac{\text{Revenue}}{\text{Number of lawns}}$

= $\frac{13x}{13} = \$13$

c) For Jimmy to make a profit, P(x) must be greater than zero i.e.

$P(x) >0$

$9x-350 >0$

$9x >350$

The smallest integer value of x that satisfies this inequality is 39. Therefore, Jimmy needs to mow 39 lawns in order to start making profit.

6 0

4 years ago