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2 years ago

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

Mathematics

2 answers:

eimsori [14]2 years ago

7 0

Answer:

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

---------------------------

Optional Steps (for bigger numbers):

Hence, the formula is

a = b(b+1)

= b² + b

----------------------------

Hence,

3 * 4 = 12

Hence,

3 = 12

Hope this helps and be sure to have a wonderful time ahead! :D

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Svetach [21]

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2 years ago

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sladkih [1.3K]

Answer:

The answer is option B.

Step-by-step explanation:

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2 years ago

Read 2 more answers

Solve the following compound inequality: 3<-2x-137.

yarga [219]

Answer:

Step-by-step explanation:

Here you go mate

PEDMAS

STEP 1

3<-2x-137 equation

STEP 2

3<-2x-137 simplify by reversing equation

-2x-137>3

STEP 3

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step 4

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-2x /-2 > 140 /-2

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answer

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2 years ago

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svetoff [14.1K]

Answer:

b x 390 =339

Step-by-step explanation:

7 0

2 years ago

A=3.14r^2 and d=12 A=?

zvonat [6]

$\huge\boxed{113.04}$

Diameter ( $d$ ) is equal to twice the radius ( $r$ ). So, find the radius by dividing $\frac{12}{2}$ . The radius, or $r$ , is $6$ .

Substitute in the value. $A=3.14*6^2$

Follow the order of operations and solve the exponent first. $A=3.14*36$

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3 years ago