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liq [111]
3 years ago
8

Evaluate 3b2 when b= 4 and when b= - 4. When b=4, 3b2

Mathematics
2 answers:
Lana71 [14]3 years ago
8 0

Answer:

both values are 48

Step-by-step explanation:

Substitute b = 4 and b = - 4 into the expression

3b²

= 3(4)² = 3 × 16 = 48

= 3(- 4)² = 3 × 16 = 48

nydimaria [60]3 years ago
4 0

Answer:

24

Step-by-step explanation:

3 times 4 times 2

3 times 4 is 12

12 times 2 is 24

Hope this helps you

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-z=80 solve with steps
dalvyx [7]
-z = 80

You cannot submit an equation with a negative letter ( -z ) so we have to cancel the negative.

To cancel negatives in the equation, we multiply both sides by -1.

-z * -1 = 80 * -1

z = -80

Answer: z = -80
5 0
3 years ago
What is the slope of the line through (-7,-8)(−7,−8)left parenthesis, minus, 7, comma, minus, 8, right parenthesis and (0,4)(0,4
ANEK [815]

Answer:

12/7

Step-by-step explanation:

When given two points, we can find the slope by using

m = (y2-y1)/(x2-x1)

   = (4 - -8)/ (0 - -7)

    = (4+8) / (0+7)

   = 12/7

5 0
3 years ago
The square of 7/8 is
Charra [1.4K]

Answer:

7/8 squared = 49/56

Square root = 0.330718914.....

Hope that helps!

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
When the positive integer n is divided by 7, the remainder is 2. What is the remainder when 5n is divided by 7?
ser-zykov [4K]

Therefore the reminder is 3 when 5n is divided by 7.

Step-by-step explanation:

we know that

Dividend = quotient × Divisor +Reminder

⇔ n = Q(n) × 7 + 2          [ let Q(n)  is quotient]

multiplying by 5 both sides

5n = 5 Q(n) ×7 + 2×5

⇔5n = 5 Q(n) ×7 +10

⇔5n=  5 Q(n) ×7 +7 +3

⇔ 5n = (5Q(n) +1) × 7 +3

Therefore the reminder is 3 when 5n is divided by 7.

6 0
3 years ago
Please help I don’t know the answer
kvv77 [185]

Answer:

It is a picture of colors

Step-by-step explanation:

hopefully you can get it ;)

3 0
3 years ago
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