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sergey [27]
3 years ago
15

The diagram shows two congruent regular polygons joined together.

Mathematics
1 answer:
svlad2 [7]3 years ago
4 0
10 sides

360-72=288
288 divided by 2 is 144
Decagon have 144 degree interior angles
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Alex has been mowing lawns to save money for a concert. Alex will need to work for at least five hours to save enough money, but
vekshin1

Answer:

15

Step-by-step explanation:

5 0
3 years ago
The product of 9 and t squared, increased by 3 times the sum of 2 and t squared translate into an algebraic expression
elixir [45]

Algebraic expression for the given statement is

9t^2 + 3(2+t)

Given :

The product of 9 and t squared, increased by 3 times the sum of 2 and t squared

Product means the multiplication

t squared is t^2

The product of 9 and t squared is written as

9 \cdot t^2\\9t^2

lets write the expression for 3 times the sum of 2 and t

3 times (2+t)

3(2+t)

The product of 9 and t squared, increased by 3 times the sum of 2 and t squared .

Algebraic expression is

9t^2 + 3(2+t)

Learn more :  brainly.com/question/15307176

6 0
3 years ago
If q(x)=4/5x-9, find the value of x so that the function has the given value of q(x)=3
forsale [732]

Answer: x = 15

Step-by-step explanation:

1) Set q(x) = 3 in the equation.

3 = (4/5)x - 9

2) Add 9 to both sides.

12 = (4/5)x

3) Multiply by 5/4 on both sides.

15 = x

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7 0
3 years ago
Deirde spent 40% of her money in one shop and 35% of it in another. If she had €26.80 left, how much she at first​
Reil [10]

Answer:

107.20 euros.

Step-by-step explanation:

Let the amount she had initially be x euros.

Then we have the equation:

x - 0.40x - 0.35x =  26.80

x - 0.75x = 26.80

0.25x = 25.80

Multiply both sides by 4:-

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4 0
4 years ago
Read 2 more answers
PLEASE HELP Need the answer fast
hichkok12 [17]
The answer is mode as it is the only one that doesn’t need to contain numbers. The mode is the one with the most of the same thing. So in this case it’s the pizza
I hope you understand it now x
3 0
4 years ago
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