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crimeas [40]
3 years ago
11

How do I do this!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
ki77a [65]3 years ago
8 0

Answer:

x = 5

Step-by-step explanation:

39° + 90° + (7x + 16)° = 180°

39 + 90 = 129

180 - 129 = 51

7x + 16 = 51

7x + 16 - 16 = 51 - 16

7x = 35

7x/7 = 35/7

x = 5

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A glider flies 8 miles south from the airport and then 15 miles east. Then it flies in a straight line back to the airport. What
nadezda [96]

Answer:

17

Step-by-step explanation:

This flight makes a right triangle

The sides are 8 and 15. The hypotenuse isnt know and that is the answer.

8^2 + 15^2 = c^2

c^2 = 289

c = 17

6 0
2 years ago
Albert bought 18 yards of clot. He used 5.7 yards for a decoration and 8.8 yard to make costumes for the school play. Express th
Ilia_Sergeevich [38]
18 - 5.7 = 12.3
12.3 - 8.8 = 3.5
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Hope this helps >.<
6 0
3 years ago
Help me find the volume of the composite figure
Butoxors [25]

Answer:

V = 97.911in^3

Step-by-step explanation:

Given

Shapes: Cube and Cone

Required

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V_1 = l^3

Where

l = side length = 5.1

V_1 = 5.1^3

V_1 = 132.651

Next, calculate the volume of the cone using:

V_2 = \frac{\pi r^2h}{3}

Where

h = 5.1

r = \frac{1}{2} * Diameter

r = \frac{1}{2} * 5.1

r = 2.55

So, we have:

V_2 = \frac{\pi r^2h}{3}

V_2 = \frac{\pi * 2.55^2 * 5.1}{3}

V_2 = \frac{22 * 2.55^2 * 5.1}{7*3}

V_2 = \frac{729.5805}{21}

V_2 = 34.74

The volume of the figure is:

V=V_1 - V_2

V_1 = 132.651

V = 132.651 - 34.74

V = 97.911in^3

8 0
3 years ago
2) Alison has $4 less than twice the amount Ben has. Write an expression
xenn [34]

Answer:

8

Step-by-step explanation:

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6 0
3 years ago
Ms.Perozo is decorating a square bulletin board. She used exactly 312 centimeters of checkered ribbon to create a border. Now he
harina [27]
Its a squere so divide 312 by 4=78

then tou can finsd the area 

so 78 x 78 = so 6084 cm


thanks hope this helps!:)

3 0
3 years ago
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