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Mila [183]
2 years ago
5

Find all missing angles. m∠1 = m∠2 = m∠3 = m∠4 =

Mathematics
1 answer:
Grace [21]2 years ago
7 0

Answer:

Angle 1 =51. 72+57=129. 129+51=180

Angle 2=18. there is a right angle 72+18=90

Angle 3=123

Angle 4=39 angle 2+angle 3+angle 4 equals 180

123+18=141

180-141=39

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T.L. and Quina plan to add a 6-inch thick layer of gravel to their driveway. The driveway is 15 yards long and 3 yards wide. Wha
Artemon [7]

Answer:

Step-by-step explanation:

The driveway has the shape of a cuboid. The formula for determining the volume if a cuboid is expressed as

Volume = L × W × H

Where

H represents the thickness of the gravel to be added to the driveway.

W represents the width of the driveway.

L represents the length of the driveway.

From the information given,

L = 15 yards

W = 3 yards

H = 6 inches.

36 inches = 1 yard

6 inches = 6/36 = 0.167 yard

Therefore, the volume of gravel required would be

V = 15 × 3 × 0.167 = 7.515 cubic yards

7 0
3 years ago
On a coordinate plane, 2 polygons are shown. Polygon A B C D has points (1, negative 6), (5, negative 6), (6, negative 2), and (
irga5000 [103]

Answer:

The correct option is;

Use a scale factor of 2

Step-by-step explanation:

The parameters given are;

A = (1, -6)

B = (5, -6)

C = (6, -2)

D = (0, -2)

A'' = (1.5, 4)

B'' = (3.5, 4)

C'' = (4, 2)

D'' = ( 1, 2)

We note that the length of side AB in polygon ABCD = √((5 -1)² + (-6 - (-6))²) = 4

The length of side A''B'' in polygon A''B''C''D'' = √((3.5 -1.5)² + (4 - 4)²) = 2

Which gives;

AB/A''B'' = 4/2 = 2

Similarly;

The length of side BC in polygon ABCD = √((6 -5)² + (-2 - (-6))²) = √17

The length of side B''C'' in polygon A''B''C''D'' = √((4 -3.5)² + (2 - 4)²) = (√17)/2

Also we have;

The length of side CD in polygon ABCD = √((6 -0)² + (-2 - (-2))²) = 6

The length of side C''D'' in polygon A''B''C''D'' = √((4 -1)² + (2 - 2)²) = 3

For the side DA  and D''A'', we have;

The length of side DA in polygon ABCD = √((1 -0)² + (-6 - (-2))²) = √17

The length of side D''A'' in polygon A''B''C''D'' = √((1.5 -1)² + (4 - 2)²) = (√17)/2

Therefore the Polygon A B C D can be obtained from polygon A''B''C''D'' by multiplying each side of polygon A''B''C''D'' by 2

The correct option is therefore;

Use a scale factor of 2.

3 0
3 years ago
Read 2 more answers
What perfect square that is between 1 and 100 has 27 as one of its factors?
astra-53 [7]

Answer:

81

Step-by-step explanation:

Its a perfect square and 27*3=81

6 0
3 years ago
QRST is a rectangle. If RT = 5x – 5 and SQ = x + 11, find the value of x.
Hatshy [7]
5x - 5 = x + 11
5x = x + 16
4x = 16
x = 4
8 0
2 years ago
Read 2 more answers
Is one side of a rectangular fish tank best represented by a point, line, plane, or ray?
Rama09 [41]
It is best represented by a plane.
6 0
3 years ago
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