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galben [10]
3 years ago
12

Evaluate the function. f(x) = 3x2 + 16 Find f(-1)

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
4 0

Answer:

f(-1)=19

Step-by-step explanation:

<u>Evaluating Functions</u>

Given a function y=f(x), evaluate the function for x=a means substituting the variable for the given value.

We have the function:

f(x)=3x^2+16

Find f(-1):

f(-1)=3(-1)^2+16

f(-1)=3(1)+16

f(-1)=3+16

\boxed{f(-1)=19}

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Why couldn’t anybody see her apples??
5 0
3 years ago
Are the two triangles below similar?
Luda [366]

Answer :- Yes the two triangles are similar because there are two pairs of congruent corresponding angles.

Explanation:-

In Δ ABC

∠A=30° , ∠C=65 °

By angle sum property of triangle

∠A + ∠B + ∠C= 180°

⇒∠B= 180°-∠A-∠C=180°-30°-65°=85°

⇒∠B=85°

Now in ΔABC and ΔDEF

∠A=∠D=30° and ∠B=∠E=85°

⇒ there are two pairs of congruent corresponding angles.

So by AA-similarity criteria

ΔABC ≈ ΔDEF




3 0
3 years ago
Read 2 more answers
On Wednesday, Abby and Lauren could not practice together, so they practiced separately. Abby practiced for 11/12 of an hour and
Vadim26 [7]
Abby practiced for 55 minutes (60 minutes/12 and *11), Lauren practiced for 40 minutes (60/3 and *2)

3 0
3 years ago
(- 1/2 + 3/4 ) 1/5
marta [7]
I hope this helps you



(-2/4+3/4).1/5


1/4.1/5


1/20
4 0
3 years ago
An artist creates a​ cone-shaped sculpture for an art exhibit. If the sculpture is 6 feet tall and has a base with a circumferen
kirill [66]

Answer:

V = 65.19

Step-by-step explanation:

Remark

You need r. You can get it from the circumference of the circular base.

Once you have that, the formula is Area = 1/3 pi r^2 j

Givens

C = 20.236

h = 6 feet

Formulas

C = 2 pi r

Volume = 1/3 pi r^2 h

Solution

Find r from C = 2 pi r

20.236 = 2 * 3.14 * r                   Combine the right

20.236 = 6.28 * r                        Divide by 6.28

20.236/6.28 = 6.28 * r / 6.28

3.222 = r

Now that you have r, you can solve for the volume

V = (1/3) pi 3.222^2 * 6                 Square r

V = 1/3 * pi * 10.381 * 6                  Now multiply through by all, but pi

V = 20.762 pi

V = 65.194

8 0
2 years ago
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