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alexandr402 [8]
3 years ago
8

Help with them please

Mathematics
1 answer:
Free_Kalibri [48]3 years ago
5 0
Answer for the first question:
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Shakeela is planning to buy a pair of pants that have an original price of $51. The pants are on sale for 50% off and the sales
Mila [183]

Answer:

C) $25 + $1.25

Step-by-step explanation:

1.  51 x .5 = 25.5

2.  25.5 x .05 = 1.275

25 + 1.25  ≈  25.5 + 1.28

6 0
3 years ago
The angels of a triangle have a sum of 180°. The angles of a rectangle have a sum of 360°. The angels of a pentagon have a sum o
Airida [17]

Step-by-step explanation:

It is given that the angels of a triangle have a sum of 180°. The angles of a rectangle have a sum of 360°. The angels of a pentagon have a sum of 540.

<u>Let me define the each terms.</u>

1. We know that each angle in a triangle is 60°, So there is a three angle in a regular triangle.

  • 60° + 60° + 60°
  • 180°

2. We know that each angle in a rectangle, is 90°, So there is a four angle in a regular rectangle.

  • 90° + 90°+90°+90°
  • 360°

Similarly,

  • There is 8 angle in a regular octagon and each angle measurement is 135°.

So, sum of the angles of an octagon = 135° × 8

Sum of the angles of an octagon = 1080°

Therefore, the required sum of the angles of an octagon is 1080°

6 0
3 years ago
The distribution of the heights of students in a large class is roughly Normal. Moreover, the mean height is 68 inches, and appr
Thepotemich [5.8K]

Answer:

Probably equal to 6 or 7.

Step-by-step explanation:

3 0
3 years ago
Porfis ayúdenme es para hoy ​
avanturin [10]

Answers:

1. V=triangle area × length

V=1/2×8×12×20

V=960in³

2. triangle area × length

Area of the triangle=1/2×4×11

A=22ft²

V=22×6

V=132ft³

3. b, volume always have cubic power (³)

4. d, same reason of question 3

4 0
3 years ago
A skateboard for $62.80 at 6% sales tax
Sidana [21]
Sales tax is:
$62.80* (6/100)= $3.77

$62.80+ $3.77= $66.57

The cost of the skateboard including sales tax is $66.57~
6 0
3 years ago
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