1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Annette [7]
3 years ago
9

Explain how I do this please !!!

Mathematics
1 answer:
MAXImum [283]3 years ago
8 0

Answer:

23

Step-by-step explanation:

You might be interested in
Can someone help me plz thank you
abruzzese [7]

Answer:The answer would be 43.75 so thank you :)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Which of these types of heath insurance can you buy through a private insurance company
larisa86 [58]

Answer:

Step-by-step explanation:

Hi

4 0
4 years ago
Find the ratio of length to breadth of the rectangle with length 80cm & breadth 32cm.
gtnhenbr [62]

The length of the rectangle equals 80 cm, and the width equals 32 cm.

Divide the length to the width, we get the ratio between them :

80 : 32

Now, we simplify by dividing them both by the same number, in this case it's 16

=> 80 : 32 = (80 : 16) : (32 : 16) = 5:2

So, the ratio between the length and the width is 5:2

3 0
3 years ago
Read 2 more answers
A circle's radius that has an initial radius of 0 cm is increasing at a constant rate of 5 cm per second.
djyliett [7]

Answer:

a) r(t)=5t

b) A=\pi\cdot r^2

c) A=\pi\cdot (5t)^2

d) A=25\pi  t^2

Step-by-step explanation:

We know that the circle is increasing its radio from an initial state of r=0 cm, at a rate of 5 cm/s.

This can be expressed as:

r(0)=0\\\\dr/dt=5\\\\r(t)=r(0)+dr/dt\cdot t=0+5t\\\\r(t)=5t

a) Radius of the circle, r (in cm), in terms of the number of seconds, t since the circle started growing:

r(t)=5t

b) Area of the circle, A (in square cm), in terms of the circle's radius, r (in cm):

A=\pi\cdot r^2

c) Circle's area, A (in square cm), in terms of the number of seconds, t, since the circle started growing:

A=\pi\cdot r^2\\\\A=\pi\cdot (5t)^2

d) Expanded form for the area A:

A=\pi\cdot (5t)^2=25\pi\cdot t^2

3 0
3 years ago
For what value of k are the lines 2x + 3y = 4k and x - 2ky = 7 parallel?
natulia [17]

Answer:

k = -3/4

Step-by-step explanation:

The lines will be parallel if their slopes are equal.  To find the slope of each line, write its equation in slope-intercept form (y = mx + b).  In other words, solve each equation for y and look at the coefficient of x.

2x + 3y = 4k

3y = -2x + 4k

y = (-2/3)x + 4k/3

The slope of the first line is -2/3.

x - 2ky = 7

-2ky = -x + 7

y = [1/(2k)]x - 7/(2k)

The slope of the second line is 1/(2k).

If the slopes are equal, then

1/(2k) = -2/3

Multiply by 2k.

1 = (-2/3)(2k) = (-4/3)k

1 = (-4/3)k

k = -3/4

5 0
3 years ago
Other questions:
  • On Wednesday, a local hamburger shop sold a combined total of 380 hamburgers and cheeseburgers. The number of cheeseburgers sold
    7·2 answers
  • The temperature of a point $(x,y)$ in the plane is given by the expression $x^2 + y^2 - 4x + 2y$. what is the temperature of the
    9·1 answer
  • On a map of downtown Lineville, 12th Street is perpendicular to Avenue J. The equation y = -4x + 3 represents 12th Street. What
    9·1 answer
  • What is the first step when solving the equation below for x? 5 ( x + 5/6) = 7/10
    10·2 answers
  • An Olympic archer is able to hit the bull’s-eye 80% of the time. Assume each shot is independent of the others. If she shoots 6
    12·1 answer
  • Dr. Afzal finds that students who work less than 10 hours a week have significantly higher test scores than students who work mo
    8·1 answer
  • 5896 - ......... = 3067​
    7·2 answers
  • Factorsie x squared + 5x-14
    11·2 answers
  • Compute the inverse of the following matrix with steps.
    9·1 answer
  • PLEASE HELP
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!