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vaieri [72.5K]
3 years ago
6

Please help me with this

Mathematics
2 answers:
vodka [1.7K]3 years ago
7 0

Answer:

\frac{1}{2}  \times  (7.5 + 2.5) \times 2.5 = 12.5

..........................................................the answer is 12.5

Galina-37 [17]3 years ago
7 0
Yes the answer is 12.5
Formula: A=1/2 (b1 +b2)h
7.5+2.5=10.0x2.5=12.5
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A rectangle is three times as long as it is wide.If it has a perimiter of 64 cm.find its area.
inessss [21]

Answer:

i think you would just do 64+64+64=

Step-by-step explanation:

5 0
3 years ago
How many centimeters long is a leg of an isosceles right triangle if its hypotenuse has a length of 8√2 centimeters?
andrew-mc [135]

Answer:

The leg is 8 cm long

Step-by-step explanation:

An isosceles right triangle has the length of its hypotenuse and opposite equal

Let us call the length x

From Pythagoras’ , the square of the hypotenuse equals the sum of the squares of the two other sides

Thus, we have ;

x^2 + x^2 = (8 √2)^2

2x^2 = 128

x^2 = 128/2

x^2 = 64

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7 0
3 years ago
If Dandelion the cat runs 35 feet in 0.8 seconds, what is the speed at which she is running?(1 point)
zysi [14]

Answer:

43.75

Step-by-step explanation:

It you want to find the speed of the cat, all you have to do is divide 35 by 0.8.

3 0
3 years ago
Question 5
nadezda [96]
When you distribute you should get
12 {x}^{2}  + 8x - 3x - 2
Simplify to get
12 {x}^{2}  + 5x - 2
Answer 2 is correct
4 0
3 years ago
A freight carrier charges $0.80 for the first ounce plus an additional $0.25 for every ounce (or part of an ounce) over the firs
Jobisdone [24]

Answer:

$1.80

Step-by-step explanation:

5 ounces

1st ounce = .80¢ plus 25¢ for every other ounce. You have 4 ounces left. 25¢ times 4. = $1.00

$1.00

+0.80

_____

$1.80

3 0
3 years ago
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