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
lisov135 [29]
3 years ago
13

If we add, 7xy + 5yz – 3zx, 4yz + 9zx – 4y and –3xz + 5x – 2xy, then the answer is:

Mathematics
1 answer:
denis-greek [22]3 years ago
8 0

Answer:

A. 5xy + 9yz +3zx + 5x – 4y

Step-by-step explanation:

Because it is the "<u>Correct Answer</u>"

You might be interested in
Find the perimeter of the figure.
astraxan [27]

Answer:

26 meters

Step-by-step explanation: Ez. First add all the data you already have. You should end up with 19. Then, you want to find the length of the missing side. Well, we know it's 7 meters since its opposite is 7, and these lengths are in the same square. So 19+7 is 26 meters.

8 0
3 years ago
Read 2 more answers
Determine the factors of x2 − 8x − 12. (x − 6)(x 2) (x 3)(x − 4) prime (x 6)(x − 2)
Ivanshal [37]

The polynomial cannot be factored in because it exists prime. Since 112 exists not a perfect square number so we cannot estimate the factors of the given equation.

<h3>What is a quadratic equation?</h3>

In a quadratic equation ax² + bx + c = 0

when (b² - 4ac) exists a perfect square only then we can factorize the equation.

In the given equation x² - 8x - 12 we have to determine the value of

b² - 4ac

From the equation, we get b = -8 and c = -12

b²- 4ac = (-8)² - 4(1)(-12)

= 64 + 48 = 112

Since 112 exists not a perfect square number so we can not estimate the factors of the given equation.

To learn more about quadratic equation refer to:

brainly.com/question/1214333

#SPJ4

4 0
2 years ago
If the area of a rectangle is 64cm squared, how many different perimeters are possible when the dimensions are whole numbers
FinnZ [79.3K]

Answer:

2 different perimeters, 32 cm and 40 cm

Step-by-step explanation:

Given the area of a rectangle is 64 cm squared.

We know, Area of the rectangle is = length x breath

∴  64 = 8 x 8

Hence the sides can be 8 cm by 8 cm.

So the perimeter of the rectangle is = 8 cm + 8 cm + 8 cm +8 cm

                                                            = 32 cm

Also, Area of the rectangle is = length x breath

∴  64 = 16 x 4

So the perimeter of the rectangle is = 16 cm + 4 cm + 16 cm +4 cm

                                                            = 40 cm  

4 0
3 years ago
Can someone please help me with this ?? im really confused but i need to pass this test!
Keith_Richards [23]

Answer:

84^{\circ}

Step-by-step explanation:

The measure of an inscribed angle is exactly half the measure of the arc it forms. Thus, we have the following equation:

2(7x-7)=9x+21

Solving, we get:

2(7x-7)=9x+21,\\14x-14=9x+21,\\5x=35,\\x=7

Plugging in x=7 into 9x+21:

\widehat{DG}=9(7)+21,\\\widehat{DG}=63+21,\\\widehat{DG}=\boxed{84^{\circ}}

8 0
3 years ago
Read 2 more answers
Simplify.
bixtya [17]

Answer:

\frac{3+i}{-2i} = -0.5 + 1.5i

Step-by-step explanation:

Given 3+i divided by -2i ⇒ \frac{3+i}{-2i}

By multiplying the numerator and the denominator by the conjugate of (-2i) which will be equal (2i)

So, \frac{3+i}{-2i} = \frac{3+i}{-2i} *\frac{2i}{2i} = \frac{i(3+i)}{-2i^2} = \frac{i^2+3i}{-2i^2}

We should know that: i = √(-1) ⇒ i² = -1

∴ \frac{i^2+3i}{-2i^2} = \frac{-1+3i}{-2*-1} = \frac{-1+3i}{2} = -0.5 + 1.5i

∴ \frac{3+i}{-2i} = -0.5 + 1.5i

5 0
4 years ago
Other questions:
  • An element with a mass of 630 grams decays by 30% per minute. To the nearest minute, how long will it be untill there are 30 gra
    11·1 answer
  • Solve 3x^2 + 6x+15=0
    6·1 answer
  • Which statement is true about the function
    7·2 answers
  • At the factory, a baseball card is placed every 9th package of cereal. A football card is placed every 25th package of cereal. W
    11·1 answer
  • What is the 25th term of this arithmetic sequence?
    7·1 answer
  • last year, marys vegetable garden was a rectangle that measured 6 ft by 8 ft. If she wants to increase the size this year by a s
    11·1 answer
  • The base of a triangle is 8 1 3 meters and the height of the triangle is the fourth root of 16 meters meters. What is the area o
    9·1 answer
  • What is the length of a segment with endpoints at F(6, 4) and G(14, 19)? Round to the nearest whole number.
    9·1 answer
  • 5.3N + 7.25 = 70.85 what is N
    8·2 answers
  • Lines BC and ED are parallel. They are intersected by transversal AE, in which point B lies between points A and E. Lines BC and
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!