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2 years ago

PLS HELP WILL MARK YOU BRAINLIEST! NO FAKE ANSWERS

Mathematics

2 answers:

bixtya [17]2 years ago

4 0

Answer:

30%

Step-by-step explanation:

the first solution -30% will be 45% and the second solution added by 30% will be 45%

Nastasia [14]2 years ago

4 0

An which direction does heat move?

From an object with a cool temperature to another object with a cool temperature.

From an object with a higher temperature to an object with a lower temperature.

with a lower temperature to an object with a higher temperature.

From an object with a warm temperature to another object with a warm temperature.

Step-by-step explanation:

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Which function is shown on the graph?

monitta

Answer:

y = (1/2) cos (x)

Step-by-step explanation:

It has the same period as cos x but only goes half as high and half as low. Normalyy, cos(x) goes up to 1 and down to -1.

3 0

3 years ago

What is the connection between rate and slope

Paraphin [41]

Answer:

Step-by-step explanation:

In math, slope is the ratio of the vertical and horizontal changes between two points on a surface or a line. The vertical change between two points is called the rise, and the horizontal change is called the run. The slope equals the rise divided by the run: . This simple equation is called the slope formula.

6 0

3 years ago

Dave walked to his friends house at a rate of 4 mph and returned biking at a rate of 10 mph. If it took him 18 minutes longer to

vesna_86 [32]

Answer:

The total distance of the round trip was 4 miles

Step-by-step explanation:

1. Let's check all the information given to answer the question correctly:

Speed of Dave walking to his friend's house = 4 mph

Speed of Dave biking from his friend's house = 10 mph

Time walking is 18 minutes longer than time biking

2. What was the total distance of the round trip?

Time walking = x

Time biking = x - 18

For solving x, we will use the following equation:

4x = 10 * (x - 18)

4x = 10x - 180

-6x = - 180

x = -180/-6 (Dividing by - 6)

x = 30

Dave walked 30 minutes and biked 12 minutes, now we can calculate the total distance, this way:

30 minutes = 0.5 hours and 12 minutes = 0.2 hours

Total distance = 4 *0.5 + 10 * 0.2

Total distance = 2 + 2

Total distance = 4 miles.

3 0

2 years ago

Read 2 more answers

HELPP Let f(x) represent a function. Which descriptions match the given transformations? Drag and drop the answers into the boxe

kap26 [50]

<span>f(x+5/4) means that f(x) is translated 5/4 units left. f(x-5/4) means that f(x) is translated 5/4 units right. f(x)-5/4 means that f(x) is translated 5/4 units down. f(x)+5/4 means that f(x) is translated 5/4 units up. f(x*5/4) means that f(x) is compressed by a factor of 5/4. f(x/5/4) means that f(x) is stretched by a factor of 5/4.</span>

4 0

2 years ago

Read 2 more answers

Find the length of the segment AB if points A and B are the intersection points of the parabolas with equations y=−x^2+9 and y=2

11Alexandr11 [23.1K]

Answer:

The length of the segment AB is √48

Step-by-step explanation:

Given the two equations, the idea is to find the solution to the system

y = x² + 9

y = 2x² - 3

you can use the equality method to find the "x" and "y" of the solution.

x² + 9 = 2x² - 3 ⇒ x² - 2x² = -3 - 9 ⇒ -x² = -12 ⇒ x² = 12 ⇒ x = ±√12.

With this value we return to the original equations and replace it to find "y" values.

y = (±√12)² + 9 ⇒ y = 21

The solutions to the system are (-√12, 21) and (√12, 21). Now you need to find the distance between this points.

d= √[(x2-x1)² + (y2-y1)²] ⇒ d = √48.

The length of the segment AB is √48.

6 0

3 years ago