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
tangare [24]
3 years ago
8

Simplify -4(3x-5y-7)

Mathematics
1 answer:
nadezda [96]3 years ago
7 0

Answer:

-12x + 20y +28

Step-by-step explanation:

You might be interested in
What is the volume of a square pyramid with base edges of 60 inches and a height of 10 inches?
vichka [17]

Answer:

The volume is 12000 in^3

Step-by-step explanation:

From the question ,

L= 60\:in. and H=10\:in.

The volume of a pyramid is given as

V=\frac{1}{3} \times area\:of\:the\:base \times height

From the question, the base of the pyramid is a square.

Hence base area is given by L^{2}

This implies that the volume of the pyramid is

=\frac{1}{3} \times L^{2}\times H

=\frac{1}{3}\times 60^{2} \times 10

=\frac{36000}{3}

=12000 in^3

6 0
3 years ago
2.3*10^8+4.7*10^7<br><br> Express answer in scientific notation.
juin [17]

Answer:

2.3 * 80 + 4.7 * 70

Step-by-step explanation:

6 0
3 years ago
A plumber charges $75 for the service call and $25 per hour (h) for repairs. Write an algebraic expression to represent the tota
Anika [276]

Answer:

75 + 25h

Step-by-step explanation:

Hope this helps

3 0
3 years ago
Which type of data would be best displayed in a histogram
zavuch27 [327]

I uploaded the answer to a file hosting. Here's link:

tinyurl.com/wpazsebu

8 0
3 years ago
E temperature t of a metal sphere is inversely proportional to the distance from the centre of the sphere (the origin (0, 0, 0))
olasank [31]

(-x, -y, -z) the vector form (x, y, z) to the origin, in the direction of the greatest increase.

<h3>How to calculate temperature?</h3>

The quantity or amount of radiation contained in material or item, as measured by a temperature or sensed by touch and stated on a numerical scale.

The temperature T of a ball bearing is inverse to the length first from the origin, which we consider to be the center of the ball. The temperature at the exact location

(x, y, z) is a point on the sphere, the temperature at this point is given by

T(x,y,z)= \dfrac{k}{(x^2 +y^2+z^2)^{1/2}}

Where k is constant, then we have

T(1, 2, 2) = k/3 = 170

k = 510

So

T(x,y,z)= \dfrac{510}{(x^2 +y^2+z^2)^{1/2}}

Then we have

\rm \triangledown T =  \left ( -\dfrac{510x}{(x^2 +y^2+z^2)^{1/2}}, -\dfrac{510y}{(x^2 +y^2+z^2)^{1/2}}, \dfrac{510z}{(x^2 +y^2+z^2)^{1/2}} \right )\\\\\\\triangledown T (1, 2, 2) = -\dfrac{510}{27} (1, 2, 2) =-\dfrac{170}{9} (1, 2, 2)

Then the direction will be from (1, 2, 2) to (4, 3, 5) will be (3, 1, 3)

So u = (3/√19, 1/√19, 3/√19)

Then we get

\rm \triangledown T \cdot u = \dfrac{-170}{9}(1, 2, 2) \cdot \left (\dfrac{3}{\sqrt{19}}, \dfrac{1}{\sqrt{19}}, \dfrac{3}{\sqrt{19}} \right )\\\\\\\triangledown T \cdot u = - \dfrac{170}{9\sqrt{19}} (3 + 2 + 6)\\\\\\\triangledown T \cdot u = -\dfrac{1870}{9\sqrt{19}}

The direction of the greatest inverse in the temperature is given by any vector parallel to and having the same direction \triangledownT. (-x, -y, -z) the vector form (x, y, z) to the origin, in the direction of the greatest increase.

More about the temperature link is given below.

brainly.com/question/11464844

#SPJ4

6 0
2 years ago
Other questions:
  • What is the distance around a triangle that has sides measuring 21/8 feet, 31/2 feet and 21/2 feet?
    14·1 answer
  • The factorization of x^2 + 3x-4 is modeled with algebra tiles
    6·1 answer
  • Find the sum of 5m+3n+p,-5p+3n,and 2n-m
    12·1 answer
  • 43,785 to the nearest ten thousand
    10·2 answers
  • -55 − (-37) = <br> what is the answer
    6·1 answer
  • Why is water so important to living organisms
    5·2 answers
  • Please find the value of x. Show reasons and i'll award brainliest.
    5·2 answers
  • What is the exponent for the expression 6 × 6 × 6 × 6 × 6?
    10·1 answer
  • Find the rate in miles per hour. 5 1/3 miles in 7 1/2 minutes
    6·1 answer
  • Select all the numbers that are prime.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!