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vampirchik [111]
3 years ago
6

Question 13 of 23 If f(x) = 3x - 15, what is f(4)? A. 3 O B. -8 O C. 12 O D. -3

Mathematics
2 answers:
ioda3 years ago
5 0

Answer:

D.-3

Step-by-step explanation:

f(4)=3•4-15

=12-15

=-3

8090 [49]3 years ago
3 0

Answer:

f(4) = 3×4 - 15

f(4) = 12-15 = -3

Answer : D. -3

...........

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Answer:

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Step-by-step explanation:


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3 years ago
A travel trailer is bought at the price of $35,000. The price decreases at the rate of .25 every year (t). The exponential expre
Debora [2.8K]

Answer:

$ 8300 (Approximately)

Step-by-step explanation:

Given:

Initial price of the trailer is, P_0=\$35000

Rate of decrease per year is, r=0.25

The time in years is, t=5

The exponential expression for the decrease in price after 't' years is given as:

P=P_0(1-r)^t

Plug in all the given values and solve for 'P'. This gives,

P=35000(1-0.25)^5\\P=35000(0.75)^5\\P=35000(0.2373)\\P=\$8305.5\approx \$8300

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3 0
4 years ago
Its about creating and Solving Linear Equations by writing linear equations from geometric figures please help
Gnoma [55]

1. The value of x is 40

m ∠2x + 10 = 90

m ∠3x = 120

m ∠2x +5 = 85

m ∠2x -15 = 65

2. The value of x is 15

m ∠5x = 75

<h3>Calculating angles</h3>

From the question, we are to determine the value of x and the given angles

Since sum of angles is 360°

3x + 2x + 10 + 2x + 5 + 2x -15 = 360°

Collect like terms

3x + 2x + 2x + 2x  = 360° - 10° - 5° + 15°

9x = 360

x = 360 / 9

x = 40

∴ x = 40

Then,

m ∠2x + 10 = 2(40) + 10

m ∠2x + 10 = 80 + 10

m ∠2x + 10 = 90

m ∠3x = 3(40)

m ∠3x = 120

m ∠2x +5 = 2(40) + 5

m ∠2x +5 = 80 + 5

m ∠2x +5 = 85

m ∠2x -15 = 2(40) - 15

m ∠2x -15 = 80 - 15

m ∠2x -15 = 65

Hence, the measure of angle 2x-15 is 65

2.

Since sum of angles is 180°

Then,

5x° + x° + 90° = 180°

6x° = 180° - 90°

6x° = 90°

x = 90/6

x = 15

m ∠5x = 5(15)

m ∠5x = 75

Hence, the measure of angle 5x is 75

Learn more on Calculating angles here: brainly.com/question/15820650

#SPJ1

6 0
2 years ago
5. Use the information given in each exercise to name the method (SSS, SAS, ASA, AAS, or HL) you could use to prove triangle AOB
Strike441 [17]
The method to use to prove that triangle AOB is congruent to triangle AOC is SSS.
5 0
3 years ago
(94) 8. 9-14<br> What is the answer?
Alona [7]
(94 * 8.9) - 14
836.6 - 14
822.6 = answer

Hope it helps :)
4 0
3 years ago
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