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trasher [3.6K]
2 years ago
13

A painting has an area of 108 square inches. The dimensions of the painting are 12 and x + 3. What is the perimeter of the paint

ing? Please help ill give you brainlys
Mathematics
2 answers:
slega [8]2 years ago
7 0

Answer:

108 divide 12 and i got 9

then i did 9-3 and i got 6.

12+12+9+9=42

So the perimeter is 42

Welp i don't know if it is correct or not

Step-by-step explanation:

photoshop1234 [79]2 years ago
4 0

Answer:

42 inches

Step-by-step explanation:

x=6

108/12=9

9-3=6

the length of the picture is 12 and the width is 9

12+12+9+9==42

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Find the sum of first 15 terms of an AP whose 4th and 9th t terms are -15 and -30 respectively.
Serga [27]

Answer:

Sum of the first 15 terms = -405

Step-by-step explanation:

a + 3d = -15 (1)

a + 8d = -30 (2)

Where,

a = first term

d = common difference

n = number of terms

Subtract (1) from (1)

8d - 3d = -30 - (-15)

5d = -30 + 15

5d = -15

d = -15/5

= -3

d = -3

Substitute d = -3 into (1)

a + 3d = -15

a + 3(-3) = -15

a - 9 = -15

a = -15 + 9

a = -6

Sum of the first 15 terms

S = n/2[2a + (n − 1) × d]

= 15/2 {2×-6 + (15-1)-3}

= 7.5{-12 + (14)-3}

= 7.5{ -12 - 42}

= 7.5{-54}

= -405

Sum of the first 15 terms = -405

7 0
2 years ago
49-c&lt; or equal to 45<br><br><br><br><br>thanks
m_a_m_a [10]

49-c\leq45\qquad\text{subtract 49 from both sides}\\\\-c\leq-4\qquad\text{change the signs}\\\\\boxed{c\geq4}

3 0
3 years ago
I need help really fast!!!
Helga [31]

Answer:

x=4

if that is what you need hope this helped

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Need help ASAP! Directions in picture ;)
prohojiy [21]

Answer:

104°

Step-by-step explanation:

In the diagram we see

Angle PRT + Angle TRS = Angle PRS

<h3>So according to the question</h3>

55 + 49 = prs

=  > 104

So ,

Angle PRS = 104°

4 0
3 years ago
15 points helpppppppppp plz
Elina [12.6K]
Answer: -1.5, negative, negative

4 0
3 years ago
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