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3 years ago

Which of the following expressions is equivalent to -3(-x+12)?

Mathematics

1 answer:

Paladinen [302]3 years ago

3 0

Answer:

d: 3x-36

Step-by-step explanation:

Apply the distributive property:

$- 3( - x ) - 3 \times 12$

Multiply -1 by -3

$3x - 3 \times 12$

Multiply -3 by 12

$3x - 36$

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a car travels along the highway to little rock a steady speed. when it begins it is 280 miles after 4 hours it 100

Nikitich [7]

The function that describes the car's distance from little rocks would be option A; y = 45x + 280

<h3>What is a system of equations?</h3>

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

Point 1:

(x, y) = (0, 280)

Since we are told the car's initial position is 280 miles in the time 0 h

Point 2:

(x, y) = (4, 100)

Since we are told the car's final position is 100 miles after 4h.

Let's find the Slope :

m = 45

Now, the equation of the line is:

y = mx + b

y = 45x + 280

Then, The function that describes the car's distance from little rocks would be option A; y = 45x + 280

Learn more about equations here;

brainly.com/question/10413253

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2 years ago

Is -17 rational or irrational with explanation

In-s [12.5K]

Answer:

Rational

Step-by-step explanation:

See pic below ↓

7 0

3 years ago

Read 2 more answers

Due to a packaging error, 4 cans labeled diet soda were accidentally filled with regular soda and placed in a 12 pack carton of

Sophie [7]

Answer:

Probability that both cans were regular soda = $\frac{1}{11}$

Step-by-step explanation:

Probability = $\frac{Desired outcome}{Total possible outcomes}$

We are given 12 total number of cans; 4 cans have been accidentally filled with diet soda.

Probability that first can is a regular soda:

Outcome that first can is a regular soda will give us the number of regular soda available which are 4

Using formula of probability

Total possible outcomes are, n(total) = 12

Desired outcome: 4 (cans of regular soda)

P(1st can) = $\frac{4}{12}$ = $\frac{1}{3}$

Probability that 2nd can is a regular soda:

<em>As we have already taken a can of regular soda from the pack, the total soda in the pack now 11 and the regular soda left are 3.</em>

Total possible outcomes are, n(total) = 11

Desired outcome: 3 (cans of regular soda as one has already been taken)

P(2nd can) = $\frac{3}{11}$

Probability that both cans are regular soda:

P(both) = P(1st can) × P(2nd can)

= $\frac{1}{3} * \frac{3}{11}$

= $\frac{1}{11}$

3 0

3 years ago

Read 2 more answers

31)The scale on a map shows that 5 centimeters = 2 kilometers.

Sonbull [250]

Answer:

13.5 cm

Step-by-step explanation:

if 5 cm is 2 km, then 10 cm is 4 km. To find one km you do half of 5 cm. which is 3.5 cm. So 10+3.5=13.5

8 0

4 years ago

3. Mrs Green bakes muffins.

Sphinxa [80]

Answer:

85%

Step-by-step explanation:

Monday:

200 x 0.70 = 140

200 - 140 = 60

Tuesday:

400 x ? = 60

400 x 0.85 = 340

400 - 340 = 60

8 0

3 years ago