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
grin007 [14]
3 years ago
5

Why -4 x (-4) = 16 not -16? Simple...

Mathematics
1 answer:
Illusion [34]3 years ago
4 0
The reason why it is a positive 16 and not a negative 16, is because when you multiply a negative number with another negative number  you will always get a positive number. But, if you multiple a negative number with a positive number, you will get a negative. So, in order for you to get a -16, the equation would have to be -4*4=-16.
You might be interested in
3 numbers are in arithmetic progression their sum is15 and their product is 80 determine the 3 numbers
Mashcka [7]

Answer:

2, 5, 8

Step-by-step explanation:

For starters, let us assume that the numbers are x-d, x, and x+d.

Where d is the common difference between terms.

This mean that we can say, from the question

x-d + x + x+d = 15

3x = 15,

x = 5,

This means that the terms are 5, 5-d and 5+d.

On the other hand,

(5-d) * 5 * (5+d) = 80

(5-d) * (5+d) = 80/5

(5-d) * (5+d) = 16

25 - d² = 16

d² = 9

d = + or - 3.

Finally, the three numbers will be 2, 5, and 8. On the flipside, their sum and product are 15 and 80.

6 0
2 years ago
I need help with this,I will mark braily to the right answer!
pentagon [3]

Answer:

where the qutsion

Step-by-step explanation:

3 0
3 years ago
A hemisphere fake stone made of clay has a diameter of 16 inches. The density of clay is 0.0035 pounds per cubic inch. The clay
Rufina [12.5K]

Answer:

$137.82

Step-by-step explanation:

The volume of a hemisphere stone is given by the volume of a half-sphere:

Volume = (2/3) * pi * radius^3

If the diameter is 16 inches, the radius is 16/2 = 8 inches, so the volume is:

Volume = (2/3) * pi * 8^3 = 1072.33 in3

We need a total of 8 stones, so the total volume is:

Total Volume = 8 * 1072.33 = 8578.64 in3

The density of clay is 0.0035 pounds per cubic inch, so the total weight of the 8 stones is:

Weight = Total Volume * density = 8578.63 * 0.0035 = 30.0252 pounds

Finally, if the price of each pound of clay if $4,59, the final price is:

Price = 30.0252 * 4.59 = $137.82

8 0
3 years ago
1. Find the value of
spin [16.1K]

9514 1404 393

Answer:

  1. -√5
  2. 3/5
  3. -4/5

Step-by-step explanation:

The relevant relations are ...

  sec = ±√(tan² +1)

  cos = 1/sec

  csc = 1/sin = ±1/√(1 -cos²)

Sine and Cosecant are positive in quadrants I and II. Cosine and Secant are positive in quadrants I and IV.

__

1. sec(θ) = -√((-2)² +1) = -√5

2. cos(θ) = 1/sec(θ) = 1/(5/3) = 3/5

3. csc(θ) = -1/√(1 -(-3/5)²) = -√(16/25) = -4/5

8 0
2 years ago
A teacher randomly chooses a two-person leadership team from a group of four qualified students. Three of the
Slav-nsk [51]

Answer:

what is P(A), the probability that the first student is a boy? 3/5


what is P(B), the probability that the second student is a girl? 3/4


what is P(A and B), the probability that the first student is a boy and the second student is a girl? 1/2


No, évents A and B are not independent events

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • Davis Construction is building a new housing development. They begin by mapping the development out on a coordinate grid. They p
    5·1 answer
  • Can you explain how to divid fractions so I can help my daughter.<br> 3/8 ÷ 2/3=
    14·2 answers
  • Helpppp it's due by midnight
    10·2 answers
  • What's smaller 4/5 or 7/10
    8·2 answers
  • The average heights of a random sample of 400 people from a city is 1.75 m. It is known that the heights of the population are r
    8·1 answer
  • It says to find the length of the segment included. Round your answer to the nearest tenth. How would I find the length of the s
    10·1 answer
  • Is this pattern a net for the three-dimensional figure?<br><br> Yes <br><br> No
    9·2 answers
  • Can someone plz help me!!
    15·1 answer
  • 25<br> 25<br> 20<br> =<br> = 2² = 0<br> 4<br> a =<br> b =<br> ,c=<br> DONE
    8·1 answer
  • Suppose that when Emma was born, her grandparents deposited $20,000 into an account paying 5% interest compounded quarterly. Wha
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!