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
vagabundo [1.1K]
3 years ago
12

Suppose p varies directly as r, and p varies inversely as t. T = 20 when p = 4 and r = 2. Find t when r = 10 and p = -5.

Mathematics
1 answer:
Elodia [21]3 years ago
6 0

Answer:

T=-80

Step-by-step explanation:

P=kr/T when p=4 T=20 r= 2 k=40 so when p=-5,r=10 then T=-80

You might be interested in
Help me please been trying to find an answer to these questions?
AleksandrR [38]

Answer:

tricky ill be right back

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Suppose you feel hungry so you reach for a plum you see in a fruit bowl. explain how both external and internal stimuli are invo
Licemer1 [7]

In the given scenario above, the one who will be named as the external stimulus is the action of having to use the sense of sight when you have seen the fruit of bowl. The internal stimulus will be the action of having to feel the hunger.

4 0
3 years ago
The circumference of a circle is 15n cm what is the area of the circle in terms of n
Mice21 [21]

Answer:

Area of circle is \dfrac{225n^{2}}{4\pi} cm^{2}

Step-by-step explanation:

Formula for circumference of circle is given as,

C=2\pi r

Given that C = 15 n cm,

Substituting the value,

15n=2\pi r

Solving above equation for r, divide both side by 2\pi

\dfrac{15n}{2\pi}=\dfrac{2\pi r}{2\pi}

Simplifying,

\dfrac{15n}{2\pi}=r

Formula for area of circle is given as,

A=\pi r^{2}

Substituting the value of r,

A=\pi \left(\dfrac{15n}{2\pi}\right)^{2}

Squaring the parenthesis,

A=\pi \left(\dfrac{225n^{2}}{4\pi^{2}}\right)

Cancelling out the common term,

A=\dfrac{225n^{2}}{4\pi}

Therefore, area of circle in terms of n is A=\dfrac{225n^{2}}{4\pi} cm^{2}

5 0
4 years ago
Hi please help me<br> Thank you
Mars2501 [29]

Answer:

a 7 b5

Step-by-step explanation:

can you mark mee braerlit

6 0
3 years ago
Area of DEF = 6 sq ft
Anna11 [10]

Answer:

54 ft^2

(54 in green box; 2 in grey box)

Step-by-step explanation:

We have 2 similar triangles, ABC and DEF.

The area of triangle DEF is given as 6 sq ft.

Side BC of triangle ABC measures 12 ft.

The corresponding side to BC in triangle DEF is EF. It measures 4 ft.

That gives us a scale factor from triangle DEF to triangle ABC.

<em>To find the scale factor between two similar polygons, divide the length of a side of the second polygon by the length of the corresponding side of the first polygon.</em>

scale factor = BC/EF = (12 ft)/(4 ft) = 3

The scale factor of side lengths is 3.

The ratio of the areas is the square of the scale factor.

ratio of areas = 3^2 = 9

Now multiply the area of the first triangle (DEF) by the ratio of areas to get the area of the second triangle (ABC).

area of triangle ABC = 9 * (area of triangle DEF)

area of triangle ABC = 9 * (6 sq ft)

area of triangle ABC = 54 sq ft

Answer: 54 ft^2

(54 in green box; 2 in grey box)

6 0
4 years ago
Other questions:
  • Which of the following best describes the graph of the polynomial below ?
    6·2 answers
  • Find the integral ∬(x+2y)???????? r={(x,y): 0&lt;=x&lt;= 3, 1 &lt;= y &lt;= 4}
    6·1 answer
  • FAST HELp Which transformation carries the trapezoid onto itself?
    5·1 answer
  • ΔABC is reflected across the x-axis and then translated 4 units up to create ΔA′B′C′. What are the coordinates of the vertices o
    10·2 answers
  • What condition renders this true, where S and T are sets?
    9·1 answer
  • When water flows across farm land, some soil is washed away, resulting in erosion. An experiment was conducted to investigate th
    9·1 answer
  • I NEED MORE HELP<br> MARKING BRAINLIEST!!!!
    12·2 answers
  • Find the slope of the line whose equation is 17 + 3y = 7x.<br> -7/3<br> 17/3<br> 7/3
    12·1 answer
  • Find the area and circumference for 1 and 2.<br> 5. A<br><br><br> 1.<br> 14 yd<br> 6.
    14·1 answer
  • Help with this application of surface area and volume problem? i will reward brainly, this is 10th grade geometry!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!