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masha68 [24]
2 years ago
15

Math test , if 9 = 90 , 8 = 72 , 7 = 56 , 6 = 42 , 3 = ?

Mathematics
2 answers:
eimsori [14]2 years ago
7 0

Answer:

12

Step-by-step explanation:

Elanso [62]2 years ago
6 0

Answer:

3 = 12

Step-by-step explanation:

9 * (9+1) = 9 * 10 = 90

8 * (8+1) = 8 * 9 = 72

7 * (7+1) = 7 * 8 = 56

6 * (6+1) = 6 * 7 = 42

<em>---------------------------</em>

Optional Steps (for bigger numbers):

Hence, the formula is

a = b(b+1)

= b² + b

<em>----------------------------</em>

<em />

Hence,

3 * 4 = 12

Hence,

3 = 12

<em>Hope this helps and be sure to have a wonderful time ahead! :D</em>

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goblinko [34]

Answer: It is B sorry if took to long

Step-by-step explanation:

4 0
3 years ago
What steps would you use to plot (−3, −4, 0) in a 3-dimensional coordinate system?
eimsori [14]

Answer:

a. From the origin, move back 3 units and down 4 units

Step-by-step explanation:

Given:

The coordinates of a point in a 3-dimensional space is given as:

(-3, -4, 0)

The value of 'x' = -3

The value of 'y' = -4

The value of 'z' = 0

At the origin, the values of 'x', 'y', and 'z' are each equal to 0.

So, the coordinates of origin is (0, 0, 0). In order to reach the point (-3, -4, 0) from the point (0, 0, 0), we don't move along the z-axis as the 'z' value remains the same. We need to move along the 'x' and 'y' directions only.

Now, 'x' is equal to -3. Negative values of 'x' occur backwards from origin. So, we move back by 3 units. to reach the point (-3, 0).

Now, the value of 'y' is -4. Negative values of 'y' occur below the origin. So, we move down by 4 units to reach the point (-3, -4).

Therefore, the correct option is option (a)

A graph in 2 dimensional is shown in support of the answer.

8 0
4 years ago
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romanna [79]
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6 0
3 years ago
If x = 10 &amp; y = 2.5, solve for z.<br> Z=x/y
Aleksandr-060686 [28]

Answer:

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Step-by-step explanation:

If z=x/y and x=10 and y=2.5 then,

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8 0
4 years ago
Read 2 more answers
Which equation could be used to solve for the length of side c, given a = 5, b = 12, and C = 72°?
Alona [7]

Answer:

The value of the length of the side C is 11.49.

Step-by-step explanation:

Cosine formula is applicable.

c² = a² + b² -2abcos(C)

substitute the values:

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= 25 + 144 - 2 (60) (0.309)

= 169 - 37.08

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square root both sides:

c = sqrt(131.92)

C = 11.49

5 0
2 years ago
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