MATHEMATICS MIDDLE SCHOOL

Which function is equivalent to Y=-cot(x)?

Answers

Answer 1

Answer:

d) y=(x+pi/2)

Step-by-step explanation:

edge 2020 correct & 100%

Answer 2

Answer: I hope this helps you out

Related Questions

max cycles at a speed of 15 mph. He cycles 12 miles from home to school. If he increases the sped by 5 mph, how much faster will he reach his school?

(if you answer the question please show how you got it, please.)

Answers

First of all, you're not really asking "How much faster ?".
That would be "5 mph faster".
You're really asking "How much sooner ?"

At 15 mph, the trip takes him 12/15 = 4/5 hour.

At 20 mph, the trip takes him 12/20 = 3/5 hour.

The time saving is (4/5 - 3/5) = 1/5 hour .

= 12 minutes

Notice that by changing to 5/4 of his original speed,
he changed the trip to 4/5 of the original time.
It always works out like that ... reciprocally.

the cyclist would be going 20 mph after increasing his speed by 5 mph. but we would need to know how fast it took him to get to school when he was going to school to figure out how long it would take him to get to school. the distance 12 miles would not get shorter with max going faster, it would stay the same. so you would need to know how long it was taking him to get to school before i could do the math to figure out how fast he would get to school with his increased speed.

A dartboard has a diameter of 12 inches. What are its radius and circumference? Round to the nearest hundredth. Use 3.14 for π. The radius is inches. The circumference is approximately inches.

Answers

Radius=Diameter/2
=12/2
=6 inches

Circumference=2*3.14*radius
=2*3.14*6
=37.70 inches

Answer:

1) 12in

Step-by-step explanation:

The circumference is 75, so to find the diameter you have to divide 75 by 3.14. You get 24 approximately. Then divide the diameter by 2, so 24/2=12.

This is percent of change: 15 yards to 18 yards

Answers

To calculate the percent change, divide the second number by the first and multiply by 100%.

$(18)/(15) \cdot 100 = 120$

Thus, 120 is the correct answer.

The variable z is directly proportional to x. When x is 3, z has the value 48. What is the value of z when x = 7?

Answers

Answer:

112

Step-by-step explanation:

Given z is directly proportional to x then the equation relating them is

z = kx ← k is the constant of proportionality

To find k use the condition x = 3 when z = 48

k = $(z)/(x)$ = $(48)/(3)$ = 16, thus

z = 16x ← equation of proportionality

When x = 7, then

z = 16 × 7 = 112

Jason wrote the mixed number 1 1/3 as the sum of three fractions. None of the fractions had a denominator of 3. How is this possible? What fractions might jason have used?

Answers

The required sum of the fractions whose sums result 1 1/3 are 2 / 6 + 1 / 2 + 1/2.

Given that,
Jason wrote the mixed number 1 1/3 as the sum of three fractions. None of the fractions had a denominator of 3. What fractions might jason have used is to be determined,

What is the fraction?

Fraction is defined as the number of compositions that constitute the Whole.

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

here,
we simplified the terms in mixed fraction 1 1 /3 as,
1 = 1/2 +1/2 and 1/3 = 2 / 6
So
1 1/3 = 1 /2 +1 / 2 +2 / 6

Thus, the required sum of the fractions whose sums result 1 1/3 are 2 / 6 + 1 / 2 + 1/2.

Learn more about fractions here:

brainly.com/question/10708469

#SPJ5

convert 1/3 to 2/6
divide 1 to 1/2+1/2
3/6+1/2+1/2= 1 1/3

Which list contains only rational numbers?