3 years ago

Evaluate f(x)= -x^2-4 for x = 3

Mathematics

2 answers:

Anna11 [10]3 years ago

7 0

Answer:

f(3) = -13

Step-by-step explanation:

f(x)= - x²-4 (not (-x)²)

f(3) = - 3² - 4 = - 9 - 4 = -13

-BARSIC- [3]3 years ago

6 0

Answer:

f(3) = -13

Step-by-step explanation:

f(x)= -x^2-4

Let x = 3

f(3) = - (3)^2 -4

= -9 -4

= -13

You might be interested in

4. Choose the best answer.

Svet_ta [14]

the answer isexistence

4 0

2 years ago

Last week Anna received a pay check for $442.50. She noticed in the check stub that $47.30 of the money she earned had been with

Troyanec [42]

Answer:

Percentage of Taxes = 10.689 %

Step-by-step explanation:

Given that

Total earning of Anna is $442.50

The amount which is held with Taxes = $47.30

Now in terms of percentage

percentage of taxes from her total earning = $\frac{47.30}{442.50} times 100$

So % taxes = ( 0.106892) × 100

∴ Taxes percentage = 10.689 %

6 0

3 years ago

Please help I’m struggling

gulaghasi [49]

Answer: B, x=20; angle measure is 30°.

Step-by-step explanation:

Opposite angles are always the same.

You can see that 30° and 3x are opposite angles therefore 3x=30°.

In algebra, when a letter and a number are next to each other, it means times.

So, 3x=30° means 3 times something equals 30.

And we know that 3×10=30 so, x=10.

Hope this helps :)

3 0

2 years ago

Factor completely: 2x^3 – 32x

anastassius [24]

$2x^3-32x= \\
2x(x^2-16)= \\
2x(x^2-4^2)= \\
\boxed{2x(x+4)(x-4)} \Leftarrow
\hbox{answer B}$

7 0

3 years ago

Dave is trying to save money for a new video game console that costs $325. he has already saved $150. If he saves $25 a week, ho

r-ruslan [8.4K]

It will take Dave 7 weeks to earn the right amount of money.

5 0

3 years ago

Read 2 more answers