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marysya [2.9K]
4 years ago
15

Find the values of x and y. The diagram is not to scale.

Mathematics
1 answer:
Elina [12.6K]4 years ago
4 0

Answer:

51+x-5+y-6=180

x+y=180-51+5+6

X+y=140

Answer x=77 y=63

(those 2 lines with the arrows are perpendicular so their angles are the same 72° and (x-5)=77-5= 72°)

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Find the first five terms of the recursive sequence <br> an=-6an-1 where a1=4.5
grandymaker [24]

Answer:

4.5, -27, 162,-972, 5832

Step-by-step explanation:

The given recursive definition is,

a_n=-6a_{n-1}, a_1=4.5

This will form a geometric sequence with first term 4.5 and common ratio r=-6.

When n=2, we have:

a_2=-6a_1 \\  \implies \: a_2=-6 \times 4.5 =  - 27

When n=3, we get:

a_3=-6a_2 \\  \implies \: a_3=-6 \times  - 27 =  162

When n=4, we get:

a_4=-6a_3 \\  \implies \: a_4=-6 \times 162 =  - 972

When n=5, we get:

a_5=-6a_4 \\  \implies \: a_5=-6 \times  - 972 = 5832

Therefore the first five terms are:

4.5, -27, 162,-972, 5832

3 0
4 years ago
So some one plz help- my sis needs dis really and i forgot all bout dis stuff-
marusya05 [52]
10.69 just use a calculator
3 0
4 years ago
In a right triangle a=2b+4 and all side lengths are integers. The possible values for b are 4cm, 5cm, 8cm,10cm,12cm,and 24cm. De
grigory [225]
A) The values for (a, b, c) are (24 cm, 10 cm, 26 cm).

b) A similar triangle is one with sides 12 cm, 5 cm, and 13 cm.

6 0
3 years ago
Assuming a case holds 12 items how many cases would you need to transport 159 items
Alika [10]
It would take about 20 cases to carry 159 items
6 0
3 years ago
Read 2 more answers
A rectangular poster has an area of 26 square feet. It is 4 1/3 feet wide at it's base. What is the height of the poster?
Alexandra [31]

Answer:

6 square feet

Step-by-step explanation:

Area = L * w

26    =  L * 4 1/3

26  =   L * 13/3

L  = 26 divided by 13/3

L = 26 * 3/13  =  6

answer = 6

8 0
3 years ago
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