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Ganezh [65]
2 years ago
15

Evaluate the expression 6h ÷ 2 when h = 3

Mathematics
2 answers:
larisa [96]2 years ago
6 0

Answer:

9

Step-by-step explanation:

6h/2

Since H is = to 3, u plug in 3 to H and 6 times H would be 3. 6*3 is 18 so then you wuold divide 18 by 2 which would equal 9

Nataly [62]2 years ago
4 0

Answer:

9

Step-by-step explanation:

18 / 2 = 9

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A rectangle has a length of 3x + 7 and a width of 2x. If the perimeter of the
Art [367]

Answer:

The length of the rectangle is 31.

Step-by-step explanation:

We have that the length (L) and width (W) are:

L = 3x + 7

W = 2x

The perimeter of the rectangle is given by:

P = 2W + 2L

94 = 2(2x + 3x + 7)

94 = 10x + 14

x = 8

Now, we can calculate the length of the rectangle:

L = 3x + 7 = 3*8 + 7 = 31        

         

Therefore, the length of the rectangle is 31 units.

I hope it helps you!                

7 0
2 years ago
Find the first three terms of the sequence below.<br> T, = n2 + 2n +9
NikAS [45]

Answer:

12, 17, 24

Step-by-step explanation:

To find the first 3 terms, substitute n = 1, 2, 3 into the rule, that is

T₁ = 1² + 2(1) + 9 = 1 + 2 + 9 = 12

T₂ = 2² + 2(2) + 9 = 4 + 4 + 9 = 17

T₃ = 3² + 2(3) + 9 = 9 + 6 + 9 = 24

7 0
3 years ago
Read 2 more answers
Solve the quadratic equation by completing the square x^2+5x-3=0
PIT_PIT [208]

{\tt{x =  \frac{ -b± \sqrt{ {b}^{2} - 4ac } }{2a} }}

{\tt{ x =  \frac{ - 5±\sqrt{{5}^{2}  - 4 \times 1 \times ( - 3)} }{2 \times 1} }}

{\tt{x =  \frac{ - 5±\sqrt{25 + 12} }{2} }}

{\tt{x =  \frac{ - 5 ±\sqrt{37}  }{2} }}

\:  \:

{\tt{x =  \frac{ - 5 +  \sqrt{37} }{2} }}

{\tt{x =  \frac{ - 5 -  \sqrt{37} }{2} }}

8 0
2 years ago
Find each sum.<br> 1)-9+(-2)<br> 2)3.2+1.4<br> 3)5.1+(0.7)<br> 4)-2.2+(-3.8)
jek_recluse [69]

Answer:

1. -11

2. 4.6

3. 5.8

4. -6

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Find the value of a2 + b when a = -2 and b = 5
REY [17]

Answer: 9

Step-by-step explanation: In this problem, we're going to evaluate a² + b knowing that <em>a</em> = -2 and <em>b</em> = 5.

So the first thing we want to do is substitute these numbers into our problem.

Since <em>a</em> = -2, we will replace <em>a</em> with a -2 and as we do that, we will put that -2 in parentheses and square it since we have a². Squaring a number just means multiplying a number by itself so (-2)² is equal to 4 since a negative multiplied by a negative gives us a positive.

Now we will replace <em>b</em> with 5 and now we have the following.

4 + 5 simplifies to 9.

4 0
3 years ago
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