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
ludmilkaskok [199]
3 years ago
8

6 2/3 * -4 1/5 i really need help

Mathematics
1 answer:
deff fn [24]3 years ago
3 0

Answer:

-28

Step-by-step explanation:

6 2/3*-4 1/5=

20/3*-21/5=

4/3*-21/1=

4/1*-7/1=

-28

You might be interested in
A rectangular bulletin board is 12 inches tall and 27 inches wide. Elena plans to cover it with squares of colored paper that ar
quester [9]

Answer:

the aswer is 26

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Find the area of the triangle formed by the origin and the points of intersection of parabolas y=− 1/3 (x−1)^2+8 and y=x^2−2x−3.
Kobotan [32]

Answer:

The area of the triangle formed by origin, and the points (4,5) and (-2,5) will be 15 sq. units.

Step-by-step explanation:

The two parabolas are y = - \frac{1}{3}(x - 1)^{2} + 8 and y = x² - 2x - 3.

Now, solving those two equations we will get the points of intersection.

So, - \frac{1}{3}(x - 1)^{2} + 8 = x^{2} - 2x - 3

⇒ - (x - 1)² + 24 = 3x² - 6x - 9

⇒ -x² + 2x - 1 + 24 = 3x² - 6x - 9

⇒ 4x² - 8x - 32 = 0

⇒ x² - 2x - 8 = 0

⇒ x² - 4x + 2x - 8 = 0

⇒ (x - 4)(x + 2) = 0

So, x = 4 or - 2.

Now, for x = 4 , y = 4² - 2(4) - 3 = 5 and the point of intersection is (4,5).

Or, for x = - 2, y = (- 2)² - 2(- 2) - 3 = 5 and the point of intersection is (-2,5).

Now, points (4,5) and (-2,5) make a straight line parallel to the x-axis at a perpendicular distance of 5 units from origin and its length is (4 - (- 2)) = 6 units.

So, the area of the triangle formed by origin, and the points (4,5) and (-2,5) will be = 0.5 × 5 × 6 = 15 sq. units. (Answer)

8 0
3 years ago
Simplify the radical /1829.
Airida [17]

Answer:

Step-by-step explanation:

7 0
3 years ago
In a right triangle, if sin 0 = 8/17 what is cos 0 explain?
Oliga [24]

Answer:

We have sin² x + cos² x =1 for all real x.

Therefore, sin² x = 1 – cos² x = 1 – (8/17)² = 1 – 64/289 = 225/289 = (15/17)².

However, remember that if x² = a², then x can be +a or –a.

Therefore, sin x can be either –15/17 or +15/17.

Everyone but Anirban so far has forgotten the negative solution.

Step-by-step explanation:

Given that sinθ=817 and cosθ<0 , we have: cosθ=−√1−sin2θ. cosθ=−√1−(817)2. cosθ=−√1−64289.

3 0
2 years ago
Find the slope and the y-intercept of the graph of y = -5 - 1/2x
ololo11 [35]

Slope:  − 1 /2

y-intercept:  ( 0 , − 5 )

3 0
3 years ago
Read 2 more answers
Other questions:
  • Use the cubes shown at the right to estimate the volume of the rectangular prism
    6·1 answer
  • Which of the following functions is not a sinusoid?
    15·2 answers
  • Write a verbal description for each algebraic expression 100-5n
    11·1 answer
  • What is the absolute value of -5/8?
    10·2 answers
  • Question 5: A mother explains to her child that the price on the sign is not
    6·1 answer
  • Which rule describes the translation?
    15·1 answer
  • Race to get brainliest, need help!
    14·2 answers
  • Very easy! PLEASE HELP I will mark brainliest
    7·1 answer
  • TEXT ANSWER
    6·2 answers
  • Jorge, sandra, danny, and valeria each mowed lawns after school and on the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!