Write an algebraic expression to represent the phrase below.a number n decreased by 5
please help

Answers

Answer 1

Answer:

Answer

5-n

Step-by-step explanation:

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Birth and death rates are often reported as births ordeathsper thousand members of the population. What isthe relative
rate of growth of a population with a birth rate of 30births per
1000 and a death rate of 20 deaths per 1000?

Answers

Answer:

10 growth per 1000.

Step-by-step explanation:

Given,

Rate of birth = 30 births per 1000

Rate of death = 20 deaths per 1000

As the growth in population is the difference in the number of the child take birth and the person die.

As we are calculating the rate of birth and rate of growth in per thousands of members, so the growth rate will be also in per thousands.

As we can see on every one thousand people,

total birth = 30

total death = 20

so, total growth = total birth - total growth

= 30 - 20

= 10

As at every 1000 persons, there are 10 persons survive, so the rate of growth will be 10 growth per 1000.

The picture shows a carousel. The carousel spins while the horses move up and down. A student determines toeach horse completes one up-down cycle in 30 seconds. The student rides a horse on the carousel for 2 minute
which equals 120 seconds.
raal

Answers

Answer:

4 times

Step-by-step explanation:

Note,

60 seconds = 1 minute
120 seconds = 2 minutes (60*2).

Since the student rode a horse for 120 seconds, to find the number of times the student riding the carousel completed the up-down cycle, we divide it by 30 seconds (which is the duration for the horse to complete one up-down cycle) because the student would be having the same duration as the horse because he was on top the horse.

Hence, we have;

120/30 = 4

Which equation represents a proportional relationship that has a constant of proportionality equal to One-fifth?

Answers

Answer:

y=1/5x or y=.2x

Step-by-step explanation:

the constant=k the equation is always y=kx and if the constant of proportionality is 1/5 you would do y=1/5x or y=.2x

Answer:

C. y = one-fifth x

Step-by-step explanation:

I took the quiz

A ____________ is sometimes a rectanglea. parallelogram
b. rhombus
c. square
d. trapezoid

Answers

Parallelogram is the answer,
rhombus, square, and trapezoid are all their own shapes, parallelogram is a four-sided plane rectilinear figure with opposite sides parallel. So basically a parallelogram is a shape with four sides.
Hope this helps.

Answer:

parallelogram

Step-by-step explanation:

If f(x)=8x then what is the area enclosed by the graph of the function, the horizontal axis, and vertical lines at x=2 and x=6

Answers

Answer:

$A=128$

Step-by-step explanation:

First of all we need to graph f(x)=8x, (First picture)

Now we have to calculate the area enclosed by the graph of the function, the horizontal axis, and vertical lines at $x_(1)=2$ and $x_(2)=6$ ,

The area that we have to calculate is in pink (second picture).

The function is positive and the domain is $[2,6]$ then we can calculate the area with this formula:

$A=\int\limits^b_a {f(x)} \, dx$ ,

In this case $b=x_(2) , a=x_(1)$

$A=\int\limits^6_2 {8x} \, dx = 8\int\limits^6_2 {x} \, dx$

The result of the integral is,

$A=8(x^(2))/(2)$ , but the integral is defined in [2,6] so we have to apply Barrow's rule,

Barrow's rule:

If f is continuous in [a,b] and F is a primitive of f in [a,b], then:

$\int\limits^b_a {f(x)} \, dx =F(b)-F(a)$

Applying Barrow's rule the result is:

$A=8.(6^(2) )/(2)-8.(2^(2) )/(2)$

$A=8.(36)/(2) -8.(4)/(2)$

$A=144-16$

$A=128$

Determine the circumference of the base of the tin?

Answers

By answering the given question, we may state that We can apply the formula if we know the radius: C = 2πr where the radius r is.

what is diameter?

In geometry, a circle's diameter is any straight line segment whose endpoint is on the circle and which passes through its centre. Another name for it is the circle's longest chord. The diameter of a sphere can be defined using either idea. The diameter is the length of the line perpendicular to the two points at either end of the circle. If you think of length as the distance between two points, then diameter is length. The diameter of a circle is the separation between its two farthest points.

We must know the base's diameter or radius in order to calculate the circumference of the tin.

If we know the diameter, we can apply the following formula to determine the circle's circumference:

C = πd

where d is the diameter and C is the circumference.

We can apply the formula if we know the radius:

C = 2πr

where the radius r is.

To know more about diameter visit:

brainly.com/question/5501950

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