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
sdas [7]
3 years ago
9

What is the product?

Mathematics
2 answers:
anygoal [31]3 years ago
8 0

Answer:

15 r squared minus 14 r minus 8

Step-by-step explanation:

(5r+2)(3r-4)

distribute and you will get

15r^2-20r+6r-8

combine like terms

15r^2-14r-8

if you have any questions just comment. ^^ ill be glad it help!

frutty [35]3 years ago
6 0

Answer:

Option D.

Step-by-step explanation:

The given expression is (5r + 2)(3r minus 4)

Convert this expression into an algebraic expression.

(5r + 2)(3r - 4)

By distribution law,

= 5r(3r - 4) + 2(3r - 4)

= 15r² - 20r + 6r - 8

= 15r² - 14r - 8

Now convert the algebraic expression into the language form.

15r squared minus 14r minus 8

Therefore, option D is the answer.

You might be interested in
I need help wit one & two please help
seropon [69]

23 is less than 25 which means it's closer to 20, so you would round it down to 20. 1.75 is over 0.50, 1/2, so you would round it up to 2. If you multiply 2 and 20 you would get 40.

Number two gets the same explanation just with different numbers.

3 0
3 years ago
A beetle is 1/5 inch wide and 2/5 inch long. How much greater is the beetle's length than its width?
Neporo4naja [7]

Answer:

2 times as long

Step-by-step explanation:

2/5 divded by 1/5 equals two

6 0
3 years ago
A portion of a roller coaster track is shown in the figure above. the roller coaster track is shown at ground level at point S a
eimsori [14]

Answer:

Step-by-step explanation:

This is classic right triangle trig.  The height of the hill is 78.4 which serves as the side opposite the reference angle of 23 degrees.  The side we are looking for is the hypotenuse of that triangle.  The trig ratio that relates the side opposite a reference angle to the hypotenuse of the right triangle is the sin ratio.  Setting it up using our values:

sin(23)=\frac{78.4}{x}, where x is the unknown length of the hypotenuse.  Solving for x:

x=\frac{78.4}{sin(23)}

Make sure your calculator is in degree mode before entering this in.  You will get a length of the hypotenuse as 200.649 feet, so choice A.

4 0
3 years ago
Divide 27x3 - 72x2 + 36x by 9x.​
vladimir1956 [14]
Answer:
3x^{2}-8x+4
just divide each term by 9x
4 0
3 years ago
Read 2 more answers
A laundry owner's estimate of her weekly profits, is given by the equation p=-4w2+160w, where w represent the number of workers
kirza4 [7]

Answer:

Number of workers = 20.

Step-by-step explanation:

p = - 4w^2 + 160 w

We need to find the value of w when p is a maximum.

We need to convert the equation to vertex form:

p = -4w^2 + 160w

p = -4(x^2 - 40w)

p = -4 [ (x - 20)^2 - 400]

p =  -4(x - 20)^2 + 1600.

So the vertex is at  (20 , 1600)

The maximum profit is 1600 and the number of workers = 20.

7 0
2 years ago
Other questions:
  • Please respond quickly
    12·2 answers
  • BC is tangent to circle A at B and to circle D at C. AB= 10 BC= 21 DC= 8 find AD to the nearest tenth
    14·1 answer
  • How to simplify this problem?
    15·1 answer
  • Factor: 2x^2+ 5x-3=0
    9·1 answer
  • Cheryl and Marcus are going to make 2 batches of muffins. the smaller batch is 2/3 the size of the larger batch. the recipe for
    12·2 answers
  • What is a letter or symbol in algebra?
    10·1 answer
  • "The product of a number and 7" :
    15·1 answer
  • Valerie shares some of the 12 candies from this box.she gives her friend 1 candy for every 3 candies she eats herself. How many
    11·2 answers
  • Good review if done correct
    15·1 answer
  • Solve for x: 5x + one third(3x + 6) > 14 x > twelve fifths x > 2 x < twelve fifths x < 2
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!