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Zinaida [17]
3 years ago
15

Find a value of 21 + 4(3^2 -5)

Mathematics
1 answer:
Svetllana [295]3 years ago
7 0

the following answer to this question is 37.

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3. A regular pentagon has a perimeter of 10x + 15. What is the length of che side?
Ivan

Answer:

C

Step-by-step explanation:

A pentagon has 5 sides. Given that it is a regular pentagon, these 5 sides are equal.

The perimeter is the total length of all the sides of the pentagon. Since these 5 sides are all equal, we can divide the perimeter by 5 to obtain the length of a side of the pentagon.

Perimeter= 10x +15

Length of each side

= (10x +15) ÷5

= 2x +3

5 0
3 years ago
How much is 2000 × 36 =? help my please ​
PIT_PIT [208]

Answer:

72000 should be your answer

Step-by-step explanation:

Got it off of g o o g l e so it should be right!

4 0
2 years ago
Help please it for my mths
n200080 [17]

Step-by-step explanation:

2+2=4 so 4

7 0
3 years ago
Read 2 more answers
Rhoda has 27 unit cubes how many rectangular prisms with different sized bases can she make if she uses all the unit cubes in ea
GalinKa [24]
Factors of 27 are 1, 3, 9, 27.
She can make 5 rectangular prisms os sizes 1 x 1 x 27 or 1 x 3 x 9 or 1 x 9 x 3 or 3 x 3 x 3 or 3 x 9 x 1
6 0
3 years ago
If she saves 1$ the first week 3$ the season week 9$ the third week how much will she save in 5 weeks
ycow [4]

Based on the numbers we have we can assume that she saves 3 times more each week than the last (1*3=3, 3*3=9).

Following this trend we would multiply the amount she saved the third week ($9) by 3 to get $27 for the fourth week.

Then, we would multiply the amount she saved the fourth week ($27) by 3 to get $81 for the fifth week.

Finally, to figure out how much she saved in the 5 weeks, we need to add each value up to get 1+3+9+27+81= $121 saved in 5 weeks

5 0
3 years ago
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