Ask question

Ask question

All categories

2 years ago

12

If f(x) = 4+ 3x, what is f(-9)?

2 answers:

Vlad [161]2 years ago

8 0

Answer:

-23

Step-by-step explanation:

goldfiish [28.3K]2 years ago

3 0

Answer:

f(-9) is -9 or -9f

Step-by-step explanation:

You might be interested in

What is the slope of the line graphed below?

melisa1 [442]

Answer:

slope is 2

Step-by-step explanation:

7 0

2 years ago

A cone and a triangular pyramid have a height of 9.3 m

Otrada [13]

Answer:

$x=17.1\ in$

Step-by-step explanation:

<u><em>The complete question is</em></u>

A cone and a triangular pyramid have a height of 9.3 m and their cross-sectional areas are equal at every level parallel to their respective bases. The radius of the base of the cone is 3 in and the other leg (not x) of the triangle base of the triangular pyramid is 3.3 in

What is the height, x, of the triangle base of the pyramid? Round to the nearest tenth

The picture of the question in the attached figure

we know that

If their cross-sectional areas are equal at every level parallel to their respective bases and the height is the same, then their volumes are equal

Equate the volume of the cone and the volume of the triangular pyramid

$\frac{1}{3}\pi r^{2}H=\frac{1}{3}[\frac{1}{2}(b)(h)H]$

simplify

$\pi r^{2}=\frac{1}{2}(b)(h)$

we have

$r=3\ in\\b=3.3\ in\\h=x\ in\\pi=3.14$

substitute the given values

$(3.14)(3)^{2}=\frac{1}{2}(3.3)(x)$

solve for x

$28.26=\frac{1}{2}(3.3)(x)$

$x=28.26(2)/3.3\\x=17.1\ in$

7 0

2 years ago

Read 2 more answers

Indicate whether classical, empirical, or subjectiveprobability should be used to determine each of the following:

Snezhnost [94]

Answer:

Indicate whether classical, empirical, or subjective probability should be used to determine each of the following probabilities.

Step-by-step explanation:

a) The probability that a certain model will win the beauty contest

is an example of which type of probability?

B - Classical

b) "The probability that next card in the deck will be black" is an example of which type of probability?

B- Classical

c) "The probability that there will be at least 16 tropical storms this summer" is an example of which type of probability?

B-Subjective

d) "There is a 0.30 probability of randomly selecting a student who has a part- time job " is an example of which type of probability?

A- Subjective

5 0

3 years ago

Help me with this math problem if u can.

Ierofanga [76]

Answer:

Step-by-step explanation:

47.86

-25.20

+52.75

-22.04

-8.50

+94.11

=39.46

7 0

2 years ago

Can someone help me out please I need help ?

Margarita [4]

Answer:

fglbef bgkfv dfg hti gri efgkrtgm ruigermfui5ygmruf thiptofktuigkrlv

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers