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Semmy [17]
3 years ago
12

Find the area and the perimeter. Use 3.14. Round your answer to the nearest tenth. Need help ASAP!!

Mathematics
1 answer:
stealth61 [152]3 years ago
4 0

The formula of an area of trapezoid:

A=\dfrac{base_1+base_2}{2}\cdot height

We have:

base_1=3ft+4ft=7ft\\\\base_2=3ft\\\\height=3ft

Substitute:

A=\dfrac{7+3}{2}\cdot3=\dfrac{10}{2}\cdot3=5\cdot3=15\ ft^2

The perimeter:

P=3+4+5+3+3=18\ ft

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The points (0,2) and (1,5) are on a line which of these points is on the same line
katrin [286]

Answer:

y = 3x + 2

Step-by-step explanation:

The equation for two points on a line is generated from the straight line equation y = mx + b ---------------- eqn (i)

where m, the slope = (y2 - y1) / (x2 - x1)  

therefore for (0,2) and (1,5) m = (5 - 2)/(1 - 0) = 3

This implies that eqn (i) can be rewritten as:

y = 3x + b ------------------- eqn (ii)

pickintg the point (0,2) and substituting into eqn (ii)

2 = 3(0) + b

this implies that b = 2

for confirmation with (1,5)

5 = 3(1) + b

b = 5 - 3 = 2

hence m = 3, b = 2

the equation is y = 3x + 2

6 0
3 years ago
A formula for the perimeter of a rectangle is P=2(l+w), where P is the perimeter, l is the length, and w is the width.
NNADVOKAT [17]
1408 because you need to multiply it to get the perimeter
7 0
3 years ago
Pamelas age is 3 times Jiris age. The sum of their ages is 96. What is Jiris age?
LiRa [457]

Answer:

32

(32 x 3 ) 96

(96 divided by 3) 96

Step-by-step explanation:

tell me if this isnt right and report it, i want u to get it right. :)

8 0
3 years ago
Read 2 more answers
PLS HELP!!!!!!!!!!!!!!!!!!!!!!!!
Neporo4naja [7]

Answer:

C) 3/8

37

C) -8 or 8

B) 84.7

D) 7 1/3

Step-by-step explanation:

Think of an absolute value as just ignoring any negative signs.

8 0
3 years ago
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If 4 more than 4 times a certain number is the same as 4 more than the product of 3 and 4, what is that number?
gtnhenbr [62]

Answer: the number is 3

Step-by-step explanation:

Let the number be represented by x.

If 4 more than 4 times a certain number is the same as 4 more than the product of 3 and 4, it means that

4x + 4 = 4 + 3×4

4x + 4 = 4 + 12

4x + 4 = 16

Subtracting 4 from the left hand side and the right hand side of the equation, it becomes

4x + 4 - 4 = 16 - 4

4x = 12

Dividing the left hand side and the right hand side of the equation by 4, it becomes

x = 12/4 = 3

5 0
3 years ago
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