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Basile [38]
3 years ago
14

Help pleaseeeeeeeeeeeeeeeeeeee​

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
7 0

Answer:

The length is 5.7

Step-by-step explanation:

<u>Step 1:  Make an equation to represent the problem</u>

2(7.9) + 2(L) = 27.2

<u>Step 2:  Solve for L/Length</u>

2(7.9) + 2(L) = 27.2

15.8 + 2L - 15.8 = 27.2 - 15.8

2L / 2 = 11.4 / 2

L = 5.7

Answer:  The length is 5.7

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What is the image of (0,-4) after a dilation by a scale factor of 1/2centered at the origin?
Alika [10]

Answer:

The image after the dilation is (0,-2)

Step-by-step explanation:

To get the image of g he dilation, what we have to do is to divide the given coordinate by 2 or simply multiply each of the given coordinates by 1/2

Mathematically, we have this as;

(0 * 1/2 , -4 * 1/2)

= (0, -2)

5 0
3 years ago
A number, a, rounded to 1 d.p. is 49.3
Anit [1.1K]

For the given numbers, the lowest bound : 41.66. the upper bound: 42.19

<h3>How are upper and lower boundaries discovered?</h3>

To determine a rounded number's upper and lower bounds: Determine the place value of the claimed level of accuracy. By two, multiply this place value. Find the upper bound by adding this amount to the provided value, and the lower bound by deducting this amount from the given value.

The lower: a=49.35. b=7.69

so the lower bounds is:

a-b=49,35-7.69 =41.66 = a=49.49.34.

b=755 the upper = a= So the upper bounds is = a-b= 42.79.

To learn more about upper and lower bound from given link

brainly.com/question/19089853

#SPJ9

6 0
1 year ago
I need help with these questions.
Ivanshal [37]

Answer:

  • See below

Step-by-step explanation:

<h3>Q13</h3>

The greater the angle the greater the opposite side

<u>Sides in ascending order:</u>

  • AB = 17, AC = 18, BC = 21

<u>Angles in same order</u>

  • ∠C, ∠B, ∠A
<h3>Q14</h3>

<u>As above, sides in ascending order:</u>

  • AB = 15, AC = 16, BC = 17

<u>Angles in same order</u>

  • ∠C, ∠B, ∠A
<h3>Q15</h3>

<u>Exterior angle equals to sum of non-adjacent interior angles</u>

  • 142° = x + 66°
  • x = 142° - 66°
  • x = 76°
<h3>Q16</h3>

<u>Same subject and isosceles triangle:</u>

  • x + x = 158°
  • 2x = 158°
  • x = 79°
<h3>Q17</h3>

<u>Same subject</u>

  • m∠QSR = m∠QPS + m∠PQS
  • 2x = x + m∠PQS
  • m∠PQS = 2x - x
  • m∠PQS = x

ΔPQS has two angles with the measure of x, hence their opposite sides are congruent and the triangle is isosceles

7 0
3 years ago
Say it with symbols a pool has lenght of 3s and a width of 2s. square tiles that are 1 ft. by 1ft. will be placed around the poo
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Border of the pool means "perimeter".
P = 2L + 2W (L represents length, W represents width)
P = 2(3s) + 2(2s)
P = 6s + 4s
P = 10s
5 0
3 years ago
The graph of y=5/4x+1 is shown below. The coordinate (0,y) is a solution of the equation. Given the x–value of 0, what is the va
Nikitich [7]

the answer would be y =1 ,

substituting x with 0 would make the 5/4 disappear and leave you with 1, making it Y=1


6 0
3 years ago
Read 2 more answers
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